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Vernonia.pdf....--- - �� ,. �e� �l��d� � _ � s ; ; �{ • ,�, � � .,. � ' "„,E '§ • .� �'� j — ` 6'' ',�� ;/: f '�.'' �, '� .�: 3 �/- 3 •� ■, t .• 'y a � ' � ��. . � . � �. , . . � � � ��. � � .. . . �.. ... .. � �. . .... . . ,��.. . . . .. . . . . ... . I ^'?��r,,;r-r ��. . 7 e`''ti �r . � _ , � � . i' `' r+•t' ;�;--"� —;,� . .. � . t :: �i: 3� ; �?f�o�+l ��L��l.�� ... `..,....... �c„�^ —�=�1.�....... � .� s :��eeis ��-� ' ., �� --- s �: � , r �: �u'`1E1 � ;'�r I.,?I .�L ,Gi�K� Prepared for The City of Vernonia Prepared by Dan Cary John Gordon Ed Strohmaier Colin MacLaren Margaret Hamilton Erin Stucky � Sylvia Jung Wendy Ormiston Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, Oregon 97209 SHAPIRO Project #2995023 June 14, 2000 � � �' TABLE OF CONTENTS 1 .0 INTRODITCTION ......................................................................................................................1 2.0 SOURCE MATERIALS AND METHODS ...........................................:................................ 2 2.1 Source Materials ...................................................................................................................... 2 2.2 Local Wetlands Inventory ....................................................................................................... 2 2.2.1 Overview of the Loca1 Wetlands Inventory .......:............................................................. 2 2.2.2 Overview of Local Wetlands Inventory Methods ........................................................... 3 2.2.3 On-site Wetland Determination .:.............................................. ................... 3 .................... ' 2.2.4 Off-site Wetland Determination ....................................................................................... 5 2.2.5 Classification of Wetlands ::...............................:............................................................. 5 2.2.6 Data Compilation and Interpretation ............. :........ ......... ......... ........: ...................... 5 2.2.7 Conf'umation of LWI ................................................:...:.................................................. 6 2.3 Wetland Quality Assessment .................................................................................................. 6 ' 2.3.1- Overview of the Oregon Freshwater Wetland Assessment Methodology ...................... 6 2.3.2 Application of OFWAM .................................................................................................. 6 23.3 Wetlands of Special Interest for Protection .......................................:............................. 7 2.3.4 Locally Significant Wetland Assessment ........................................................................ 7 2.4 Riparian Assessment .....................................:......................................................................... 9 2.4.1 Overview of Riparian Assessment ................................................................................... 9 2.4.2 Riparian Assessment Methods :.....:........:.............:.................. ..............10 ......................... 2.5 Cartographic Products ...........................................................................................................10 � 3.0 PROJECT AREA CHARACTERISTICS ............................................................................11 � 31 Setting ............ ............................................................................. ..............11 3.2 Hydrology .........:............................................................................. ..................11 3.3 Soils ..............:.....:........:................................................................ ........12 ................................. � 3.3.1 Overview ............................................................................... ........................12 3.3.2 Hydric Soils .........:..........................................................................................................13 3.4 Vegetation .................................................. . .............. .................................. ..................13 � .... 3.4.1 Historic Vegetation Communities ..................................................................................13 3.4.2 Riparian Vegetation ......................... ...............................................................................14 �, 3.4.3 Wetland Vegetation ........................................................................................................15 4.0 WETLAND FINDINGS ...........................................................................................................15 4.1 Total Wetland Acreage .........................................................................................................15 4.2 Distribution and Character of Wetlands ................................................................:..............16 4.3 � Oregon Freshwater Wetland Assessment Methodology Results .........................................18 4.4 Locally Signi�cant Wetlands ................................................................................................19 5.0 RIPAl2IAl.v FTNDINGS ........................................................................................................... 20 5.1 Riparian Assessment Scope .................................................................................................. 20 5.2 Riparian Characterization and Results ...................................:.............................................. 21 � �' i � � 6.0 SUNIMARY ......:......................................................:.................................................................22 7.0: REFERENCES ...............................................................................:...............................:......... 23 Gl ossary of Acronyms Used in Te� .........................:...................................................................... 25 List of Tables Table 1. Soil Types Mapped in the City of Vernonia LWI Table 2. Wetlands and Sizes of Wetlands Mapped in the City of Vernonia LWI Table 3. NWI Wetlands within the City of Vernonia LWI Table 4. Summary of OFWAM Results for the City of Vernonia Table 5. Significant Wetlands and Wetlands of Special Interest for Protection Table 6. Urban Riparian Inventory and Assessment Summary List of Figures . Figure 1. Zoning and Study Area Boundary Figure 2. Location and Generalized Topography Figure 3. Soi1 Mapping Units _ Figure 4. Wetlands and Linear Water Features Identified by the L�VI Figure 5'. National Wetland Inventory Designations List of Appendices . Appendix A Wetland Data and Summary Sheets Appendix B Riparian Data and Summary Sheets Appendix C DSL OFWAM Manual Appendix D DSL Riparian Guide Wetland and Riparian Inventory Section Maps are separate. ! 1 � � 1.0 INTRODUCTION This report documents the methods and results of the City of Vernonia's (City's} Local Wetland Inventory (LWI). The City hired Shapiro and Associates, Inc. (SHAPIRO) to conduct the wetland inventory wetland function assessment, and riparian assessment inside the City's Urban Growth Boundary (UGB; Figure 1). The cartographic products and supporting documentation of this LWI have been prepared to satisfy requirements of Oregon Administrative Rule (OAR) 141- 86-180. Vernonia is nestled in the Nehalem River Valley of the Oregon Coast Range. Early settlement and development of the City were based on a resource extraction economy (timber harvesting and milling). Records indicate that the first European settlement in the area probably occurred in the Nehalem Valley in 1867. By 1877, 150 settlers were living in the valley. In 1949, 300 farms were reported in the Vernonia area (5t. Helens Sentinel Mist, 1949). The Oregon-American Lumber Mill was established in 1924. In 1994, the City's population was 2,035 (Levine, 1996). The City was awarded a 1998/1999 Wetlands Planning Assistance Grant by the Oregon Division of State Lands (DSL), funded by the U.S. Environmental Protection Agency (EPA) Region X. The work described in the grant includes conducting a LWI and a Riparian Assessment. The City is required to complete the LWI as part of the requirements of the periodic land use planning review process established by state land use planning Goa15. Further, the City suspected wetlands existed on large areas zoned for development. A public meeting was held June 3, 1999, to inform citizens about the LWI process. The relative quality of wetlands in the study area also was assessed. This information was used to identify locally significant wetlands t� facilitate meeting Goa15 requirements for wetland protection. Riparian assessments were conducted to provide additional information to meet Goal 5 requirements. When approved and accepted by the DSL, this inventory and assessment of wetland and riparian resources will supplement the U.S. Fish and Wildlife Service (USFWS) National Wetlands Inventory (NWI) maps the City currently uses to provide information on the location arid size of wetlands. The LWI also will be incorporated into the statewide wetland inventory and used for the wetland — land use notification program. This means that applicants for City development permits will be referred to the DSL for any necessary wetland clearance if their lot has a mapped wetland or waterway. SHAPIRO conducted the inventory using experienced LWI staff. Dan Cary, a wetland delineator certified by the U.S. Army Corps of Engineers (COE), was Project Manager. Trained wetland delineators Colin MacLaren, John Gordon, and Ed Strohmaier, who all have prior experience performing wetland inventories, assisted on the project. The cartographer for the project was Sylvia Jung, who has performed cartographic work for several LWIs and numerous wetland delineations. The base map for the inventory was prepared in the by Tetra Tech, Inc. Vernonia Lc�cal Wetland Inventory and Riparian Assessment June 14, 2000 Page -1- 2.0 SOURCE MATERIALS AND METHODS 2.1 Source Materials Available information was compiled and reviewed before field work was conducted. Soil information was compiled from data in Soil Survey of Columbia County, Oregon (U.S. Department of Agriculture [USDA], 1986). Preliminary wetland information was obtained from the Vernonia, Oregon NWI maps (USFWS, 1981}. Floodplain information was obtained from Columbia County, Oregon and Incorporated Areas Federal Emergency Management Agency (FEMA) Flood Insurance Rate Maps (FEMA, 1988). A digitized base map of the study area that included layers for taa� lot lines, street names, rights- of-way, and section boundaries was prepared by Tetra Tech, Inc. Tax assessor maps and aerial photograph overlays were used as the information source for this base map. Property boundaries were not surveyed. Zoning information was obtained from the City of Vernonia PlanninglZoning Map (1996, scale 1 inch = 800 feet). A 1:4800 scale calor aerial photograph taken in 1994 was obtained from Spencer B. Gross, Inc. Other source materials included the Oregon Rivers Information System (ORIS; Baker and Forsberg, 1994) fish presence database; telephone conversations with Joe Sheehan, District Fish Biologist with the Oregon Department of Fish and Wildlife (ODFW}; Oregon's 1998 Section 303(d) List of Water Quality Limited Waterbodies (Oregon Department of Environmental Quality [DEQ], 1998); Classification and Catalog of Native Wetland Plant Communities in Oregon (Christy, 1993); and a current data search from the Oregon Natural Heritage Program (ONHP, 1998). This information was used to develop a preliminary indication of the location and possible quality of wetlands, facilitate on-site gathering of data, and complete the assessments. The City, with assistance from SHAPIRO, identified properties likely to contain wetlands. The owners of the identified properties then were sent an access pernussian letter. Properties to which access was granted were located on tax assessor maps, marked on the aerial photograph, and later noted on inventory maps. 2.2 , Local Wetlands Inventory 2.2.1 Overview of the Local Wetlands Inventory The 1989 Oregon State Legislature authorized the DSL to develop a statewide wetlands inventory suitable for planning and regulatory purposes. Pursuant to ORS 196.674, in 1994 the DSL established LWI standards and guidelines, which are located in OAR 141-86-180 through 141-86-240. The purpose of an LWI is to locate, map, and classify wetlands over a relatively large geographic area. In accordance with LWI standards, wetlands at least 0.5 acre in size are identified in the inventory. Their boundaries are mapped to an accuracy of + or -25 feet. This LWI also includes three wetland delineations approved by the DSL and COE. These wetland delineatians were confirmed by the DSL in 1993, 1995, and 1998. Vernonia Local Wetland Inventary and Riparian Assessment June 14, 2000 Page -2- 2.2.2 Overview of Local Wetlands Inventory Methods A LWI is conducted using color or color infrared, aerial photographs taken within five years of inventory initiation and at a minimum scale of 1 inch = 800 feet (1:9600). In general, wetlands are located using aerial photographs. Site visits are conducted as described in the LWI standards and guidelines. If access to a parcel is not obtained, wetlands can be mapped off-site using information such as topographic maps and aerial photographs. The product of a LWI is a parcel- based map showing the approximate location of wetlands at a minimum scale of 1 inch = 800 feet. The parcel-based map allows the property owner, local jurisdiction, and DSL to know which tax lots may contain jurisdictional wetlands. Aerial photographs used for the Vernonia LWI were taken on May 10, 1994, and printed at a scale of 1 inch = 400 feet (1:4800). Map products for the inventory are at the same scale. 2.2.3 On-site Wetland Determination Where property access permission had been granted, on-site wetland determinations were made using the Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-I (Manual; Environmental Laboratory, 1987). The COE and DSL recognize the use of the 1987 Manual for delineation of wetlands. The Manual provides technical criteria, field indicators, and recommended procedures to be used in determining whether an area has wetland characteristics that qualify it as a jurisdictional wetland subject to regulation by federal and/or state agencies. The Manual requires that three criteria be met in undisturbed situations before areas can be considered wetland under federal or state regulations. These criteria are the presence of wetland hydrology, hydrophytic vegetation, and hydric soils, under normal circumstances. If one of these criteria cannot be determined because of disturbance caused by recent natural events or human activities, an alternative method must be used in making a wetland determination. Observations of soils, vegetation, and hydrology w.ere made using a modification of the Manual's "Routine Onsite" znethod. On parcels to which access was obtained, plot locations were selected ta provide a valid representation of site conditions. Data were collected from representative sample plots to characterize the wetland and determine the approximate location of the wetland boundary. Hydrologic Assessment The Manual defines wetland hydrology as saturation within a major portion of the root zone (usually above 12 inches), typically for at least 12.5% of the growing season. The growing season for any given site or location is determined from Soil Conservation Service (SCS) or Natural Resource Conservation Service (NRCS) data. The growing season is defined as the frost-free period recorded at the nearest recording station five years out of ten. Wetland hydrology field indicators were recorded for each excavated soil pit. Data typically recorded Vernonia Local Wetland Inventory and Riparian Assessment June 14, 2000 Page -3- � include depth of inundation, water table, and soil saturation. Primary indicators, such as sediment deposits, watermarks, drift lines, and drainage patterns, or secondary indicators, such as oxidized rhizospheres (root zones), also were recorded. Soils Assessment Hydric soils are those that have formed exclusively under wet conditions (soils that characteristically have high water tables, are ponded or frequently flooded, or are otherwise saturated for extended periods during the growing season). The possible locations of hydric soils in the study area were obtained from the SCS or NRCS county soil survey. Soil pits were excavated to a depth of 18 inches or more at sample plot locations. Soil profiles were examined for hydric soil indicators. Soil characteristics (matrix color, mottling, texture, and other features) were recorded. Vegetation Assessment Hydrophytic vegetation is plant species that have adapted to growing in substrates that are periodically deficient of oxygen because of saturated soil conditions. The Regional List of Plant Species That Occur in Wetlands: Northwest (Region 9) (Reed, 1988 with 1993 supple:ment) lists commonly encountered plant species and their wetland status. Nomenclature in this report follows this regionallist. The wetland indicator status of a species is the estimated probability that any individual plant of that species is growing in a wetland. Five basic groups of vegetation are recognized in the USFWS plant list based on the probability of their occurrence in wetlands. These categories, referred to as the "wetland indicator status" (from the wettest to driest habitats), are as follows: obligate wetland (OBL) plants; facultative wetland (FACW) plants; facultative (FAC) plants; facultative upland (FACU) plants; and obligate upland (UPL) plants. Further resolution of wetland status is possible with a"-" or "+" sign after the status indicator. The "-" indicates plant species that prefer slightly drier conditions on average. A"+" indicates plant species that prefer slightly wetter conditions on average. The wetland indicators of plants found in this inventory are included on the data sheets in Appendix A. Many plants are found in transitional areas between wetlands and uplands. These areas are usually characterized by flat to gradually sloping terrain where the species composition may not reflect true wetland boundaries. In such areas, a species with a status of FACU may extend into the wetland areas, just as FACW species may be present in upland areas. A visual percent-cover estimate of the plant community's dominant species was performed for key sample sites. A 30-foot-radius area was investigated for dominant tree and shrub species, and a 10-foot-radius area for dominant herbaceous species, using soil pit locations as a center of reference. Dominance of plant species was determined by estimating their percent areal cover per stratum (herbaceous, shrubs, woody vines, and trees). Species from each stratum were listed together in descending order of percent cover. Vernonia Local Wetland Inventory and Riparian Assessment June 14, 2000 Page -4- A determination as to predominance of hydrophytic vegetation was made using the 50-20 technique. The most abundant plant species (when ranked in descending order of abundance and cumulatively totaled) that, when totaled, immediately exceed 50°Io cover, plus any species comprising more than 20% cover, represent the dominant species (Federal Interagency Committee for Wetland Delineation, 1989). If more than 50% of the dominant species included by the above criteria are FAC or wetter (FAC- species are excluded and are considered non- hydrophytic vegetation), the vegetation community is considered hydrophytic. 2.2.4 Off-site Wetland Determination No on-site sampling could be conducted where property access permission had been denied or not explicitly approved. Therefore, off-site determinations were made on the basis of aerial photograph inspection, review of all available mapped resources (e.g., SCS soil surveys and NWI maps, confirmed determinations and delineations), and, where possible, a reconnaissance from nearby public or approved private vantage points. Observations from vantage points included documentation of dominant vegetative communities (forested, scrub/shrub, or emergent) and water regimes (such as ponded areas and obviously wet meadows). Approximate wetland boundaries were drawn on aerial photographs. Where views into properties from vantage points were not possible or otherwise restricted, and where aerial photographs and mapped information were inconclusive, same wetland areas may have been missed and were not inventoried. Data sheets were not completed for sites where access was not obtained. 2.2.5 Classification of Wetlands The Cowardin wetland classification system (Cowardin, 1979) was used to classify the wetlands mapped in the inventory. The NWI maps also use the Cowardin classification system for mapped wetland habitats. The Cowardin system classifies wetlands according to general systems, structure, vegetation types, water regime, and other modifiers. For example, wetlands within the Vernonia study area are classified as palustrine and riverine wetlands. The palustrine class combines vegetated freshwater wetlands (traditionally called marshes, swamps, bogs, fens, and wet prairies) and small, shallow, permanent, or intermittent water bodies (ponds) that are less than 2 meters (6.6 feet) deep. Wetlands dominated by grasses and other herbaceous plants are classified as Palustrine Emergent (PElVn. Wetlands dominated by woody species less than 30 feet high are classified as Palustrine ScrublShrub (PSS). A site dominated by woody species over 30 feet high is classed as Palustrine Forested (PFO). Unvegetated open water in ponds is classified as Palustrine Open Water (POW). The riverine classification is used to describe unvegetated stream channels. 2.2.6 Data Compilation and Interpretation Data were recorded in the field and subsequently transferred to computerized standard wetland delineation data sheets. Sampling site locations were recorded on the aerial photographs. The approximate wetland boundaries and sample site locations were drafted on the aerial photograph in the field. These boundaries subsequently were digitized onto AutoCAD maps. All wetlands received a unique code to aid in their identification. In general, parts of wetlands received Vernonia Local Wetland Inventory and Riparian Assessme�it Ju�te 14, 2000 Page -5- separate codes where major roads or distinct breaks in wetland character occurred. Some wetlands were grouped and coded as one unit where they were adjacent, hydrologically linked, or similar in character, thus functioning as a unit. The three wetland delineation boundaries confirmed by the DSL in 1993, 1995, and 1998 were digitized from original maps or photocopies of maps in the delineation report submitted to the DSL. 2.2.7 Confirmation of LWI A draft report and set of maps is provided to the DSL for review and confirmation. �nce the DSL has reviewed and commented on the documents, SHAPIRO reviews the comments and makes modifications to the draft wetland maps and report. The products are then resubmitted for final approval. The status of the report as draft or finaI is indicated on the report cover and maps. 2.3 Wetland Quality Assessment 2.3.1 Overview of the Oregon Freshwater Wetland Assessment Methodology The Oregon Freshwater Wetland Assessment Methodology (OFWAM; Roth et al., 1996) was developed by an interagency committee to assess the relative quality of wetlands. The methodology is intended for use by planners, public officials, and community members for planning and educational purposes. Completion of this methodology provides basic information, which is not intended for evaluation of detailed, site-specific impacts on individual wetlands. OFWAM is based on the idea that an understanding of the wetland system functions and conditions at local, state, and federal levels is necessary to make management decisions. Recommended uses of OFWAM include collection of basic information about wetlands in an assessment area, creation of a database of functions and conditions and other wetland data, support of decision making and planning within a jurisdiction, and education. OFWAM requires that the same functions and conditions be evaluated for each wetland within a study area. There are, in addition, other considerations noted in the following sections that determine the wetland's overall value. 2.3.2 Application of OFWAM OFWAM assessments were partially completed during field work using data gathered in the field. Other source materials were used to complete the assessments. The methodology provides qualitative information on the relative value of wetlands based on a series of questions related to wetland functions. The following functions are assessed: wildlife habitat, fish habitat, water quality, hydrologic control, sensitivity to impact, enhancement potential, education, recreation, and aesthetic quality. Each function is assessed by criteria that give an indication of whether a wetland function is (1) intact, (2) affected or degraded, or (3) lost or not present. OFWAM is designed to be open-ended; therefore, other functions and conditions may be added later, or some may be dropped if not important to the user. Vernonia Local Wetland Inventory and Riparian Assessment June 14, 2000 Page -6- OFWAM results and a summary of the functions and conditions for each wetland are included in Appendix A. The OFWAM document, which includes detailed information about assessing the functions and conditions of wetlands, is provided in Appendix C. 2.3.3 Wetlands of Special Interest for Protection A subset of questions within OFWAM provides a method to assess whether any wetlands within the study area should be considered Wetlands of Special Interest for Protection (WSIP). WSIP assesses whether the wetland is currently in a management plan, is protected by regulatory rules or statutes, or is uncommon in Oregon. The presence of rare, threatened, or sensitive species within an area makes the wetland a potential WSIP. An affirmative answer to any one of these questions also will place the wetland in a category for protection. This information can be used in management decisions for a site. The use of OFWAM and WSIP screening questions assists in providing an overall evaluation of wetlands in the assessment area. Many of these WSIP questions are repeated in the locally significant criteria questionnaire (see next section), so the results are combined in Table 5. 2.3.4 Locally Significant Wetland Assessment The term "significant wetlands" has meaning in the context of Statewide Planning Goal 5. Under this Goal, local governments are instructed to identify their significant resources, including wetlands, so those resources serving significant functions in the local community are given proper consideration in planning decisions. The DSL established a technical advisory committee to develop the locally significant wetlands (LSW) criteria. The DSL adopted the Oregon Administrative Rules for ldentifying Significant Wetlands in January 1997 (141-86-300 through 141-86-350). The criteria rely heavily on the results of OFWAM. Only wetlands with the characteristics defined in the Manual are assessed with OFWAM. Locally 5ignificant Wetland Criteria Summary A water resource is excluded from further assessment using the locally significant wetland criteria if they fall within any one of the following categories: • Wetlands artificially created entirely from upland that are: Created for the purpose of controlling, stQring, or maintaining stormwater; or active surface mining or active log ponds; or ditches without a free and open connection to natural waters of the state (as defined in OAR 141-085-0010[9]) and which do not contain food or game fish (as defined in ORS 496.009); or: � Less than 1 acre in size and created unintentionally as the result of irrigation water overflow or leakage; or construction activity not related to compensatory mitigation for permitted wetland impacts; or Of any size and created for the purpose of wastewater treatment, cranberry production, farm or stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. Vernonia Local Wetland Inventory and Riparian Assessment Jacne 14, 2000 Page -7- • Wetlands or portions of wetlands that are contaminated by hazardous substances, materials, or wastes as per the following conditions: The wetland is documented as contaminated on either the U.S. Environmental Protection Agency's (EPA) National Priority List (NPL, also known as the "superfund list"), or the Department of Environmental Quality's (DEQ) Inventory of Hazardous Substance Sites (ORS 465.225). Only the portion of the wetland affected by such hazardous substances or wastes shall be excluded from the LSW analysis. Affected portions shall be delineated in consultation with the EPA and DEQ, and shall include areas potentially disturbed by clean-up activities. Wetlands not excluded by inclusion in the above categories are evaluated using the locally significant criteria below. A wetland is considered significant if it meets one or more of the following criteria: • It has the highest rank for any of the four ecological functions addressed by OFWAM or an equivalent methodology (see Appendix A for more details on the ranking), including: • wildlife habitat, • fish habitat, • water quality, or • hydrologic control. • It is (1) rated either in the highest or second highest category for water quality (in OFWAM or equivalent) AND (2� within 0.25 mile from a water quality limited stream, as listed by the DEQ. • It contains one or more rare wetland plant communities, incIuding those listed in the OHNP's Classification and Catalog of Native Wetland Plant Communities in Oregon (Christy, 1993) as Gl-G3 and S1-S3. � It is inhabited by any species Iisted by the federal or state government as sensitive, threatened, or endangered in Oregon (unless consultation with an appropriate agency deems the site not important for the maintenance of the species). • It has a direct surface water connection to a stream segment mapped by the ODFW as habitat for indigenous anadromous salmonids, and it has "intacY' or "impacted or degraded" �sh habitat function using OFWAM. The final two criteria are at the discretion of the local government, but have direct connections to OFWAM results. Vernonia Local Wetland Inventory and Riparian Assess�nent June 14, 2000 Page -8- Optional Criterion (at discretion of local government): The wetland represents a locally unique plant community. The wetland is or contains the only representative within the UGB of a particular native plant community (listed in the ONHP's Classification and Catalog of Native Wetland Plant Communities in Oregon). To be identified as a LSW, such a wetland also must score the highest or second highest rank for a� of the four ecological functions addressed by OFWAM. Optional Criterion (at discretion of local government): The wetland is publicly owned, scores the highest rank for educational potential, and a school or organization has a documented educational use for the wetland. The City will be required to prepare local wetland protection ordinances to apply to locally significant wetlands. Additional wetlands may be protected based on other information, such as the results of the WSIP. Any wetlands not protected by local ordinances may still be under the jurisdiction of the DSL and COE. 2.4 Riparian Assessment 2.4.1 Overview of Riparian Assessment In accordance with Goa15 requirements, a riparian inventory and assessment was performed for limited areas within Vernonia's UGB. Goal 5 requires local governments to inventory and protect riparian corridors. Riparian areas are zones of transition between aquatic ecosystems and terrestrial ecosystems. Goal 5 includes definitions that establish a riparian area adjacent to every fish bearing river, lake, or stream, including intermittent streams with a defined channel. Human-made irrigation or drainage ditches are specifically excluded. Riparian areas can enhance water quality, reduce erosion, moderate water temperatures and flood flows, and provide important fish and wildlife habitat. Riparian areas are particularly important for anadromous salmonids, which rely on cold, clean water and the habitat created by large woody debris (LWD). Local governments have two options that can be implemented to protect riparian areas. One option is to inventory and assess all riparian areas as described above, establishing the width of the riparian corridor on the basis of riparian vegetation. The inventoried sites are then analyzed to determine their significance, and ordinances are implemented to provide appropriate protection. The other option is to implement the "safe harbors" provision. Under this plan, only riparian areas adjacent to fish-bearing water resources are included for protection, and their width is based on the average stream flow of the water resource. Local governments may use either of these options, or some combination of them, to manage their riparian resources. The riparian inventory and assessment was conducted using the methods contained in the Urban Riparian Inventory and Assessment Guide (Riparian Guide; Oregon Division of State Lands, 1998), which is included in Appendix D. The Riparian Guide is a rapid inventory and assessment method for defining the location and quality of riparian areas. It is intended as a tool Vernonia Local Wetland btveiitory and Riparian Assessment June 14, 2000 Page -9- to provide consistent riparian inventory results. This document provides guidance for determining the width and length of riparian areas, and for assessing their water quality, flood management, thermal regulation, and wildlife habitat functions. 2.4.2 Riparian Assessment Methods The Riparian Guide includes a field inventory component, during which information is gathered on the width and other physical characteristics of the riparian areas. The riparian areas on each side of the water resources are divided into reaches based on various characteristics, primarily the type of development (or lack thereof} adjacent to the stream, and the dominant vegetation. Each riparian reach is coded as to the side of the stream (looking downstream; right side [R] and left side [L]) and its sequential number, with number 1 being the farthest upstream. The ends of the riparian reaches are shown on the inventory maps. The width of the riparian study areas are determined by the potential tree height (PTH} as listed in the Riparian Guide for the tree species determined by the investigators to be the dominant tree in the riparian area. The PTH of the dominant tree species determines the width of the riparian area. The actual width of existing riparian vegetation varies widely depending on the degree of development and other factors. It may, therefore, be different from the PTH-determined riparian width. Based on field observations, the following functions of the riparian area are assessed: (1) Water Quality, (2) Flood Management, (3) Thermal Regulation, and (4) Wildlife Habitat. The functional rank of a riparian area increases as more of the following criteria are met: • surface water is present throughout the year; • the developed area is less than 25%; • the slope is less than 10%; � impervious surfaces constitute less than 10% of the area; • the water resource is shaded at midday during the summer; � flood prone areas dominated by woody vegetation are present; • the stream or water resource is not in an excavated or lined channel; • more than one type of water resource is in or adjacent to the riparian reach; and • the water resource is bordered by a vegetated riparian area at least 30 feet wide. Where these factors are present or developing, the riparian area provides for water quality, flood management, thermal regulation of the water resource, and wildlife habitat. The factors listed here are an incomplete, synthesized list. For details, consult the Riparian Guide in Appendix D. 2.5 Cartographic Products Wetland boundaries were drawn on aerial photographs. Aerial photographs can have distortion at the edges, so digitized boundaries were adjusted. The inventory was mapped at a scale larger than the scale required in the LWI rules to allow for more resolution. Wetland field staff reviewed early draft maps and made corrections where necessary to increase the accuracy of the maps. Sample sites were identified within properties to which access was permitted. D itch es Vernorcia Local Wetland Inventory and Riparian Assess�nent June 14, 2000 Page -10- and other narrow, linear features located on the edge of a property were occasionally drawn slightly to the side of the property line for graphic clarity. A map was prepared for each section within the UGB (see Figure 1). Each section map includes a small portion of the adjoining sections. The overlap allows for ease in viewing a wetland that may cross section boundaries. Riparian study areas included in the project are mapped by reach endpoints only. 3.0 PROJECT AREA CHARACTERISTICS 3.1 Setting The Vernonia LWI study area encompasses 994 acres of the Nehalem River floodplain and surrounding uplands in the Oregon Coast Range (Figure 2). Elevations within the study area vary from 600 feet National Geodetic Vertical Datum (NGVD) in the floodplain to 800 feet on the highest hilltops. Level ground in the floodplain is developed for residential, comtnercial, light industrial, and agricultural uses. The City care is situated slightly above the floodplain on gently sloping ground. Residential developments are built on some of the moderately sloping hillsides. Steeper and higher parts of the study area are forested with a mix of evergreen and deciduous trees. State Highway 47, the Nehalem Highway, is the main transportation corridor through the study area. It connects with U.S. Highway 26, the Sunset Highway, approximately 15 miles south of the study area, and U.S. Highway 30, the Columbia River Highway, about 30 miles narth of the study area. 3.2 Hydrology The Nehalem River and three of its tributaries flow through the study area. Approximately 3 river miles of the Nehalem, from river mile (RM) 88 to 91, are included in the study area. This part of the Nehalem River is classified as a lower perennial stream by the NWI. Rock Creek drains an area that is northwest of, and mostly outside, the study area. It enters the Nehalem River at approximately RM 90.6, near the western end of the study area. Rack Creek is classified as a lower perennial stream by the NWI. Bear Creek, a tributary of Rock Creek, flows off hillsides to the west of the study area and enters Rock Creek just above its confluence with the Nehalem River. Bear Creek is not mapped by the NWI, but is mapped by the USGS as a perennial stream. Knickerson Creek drains an area on the eastern edge of the study area and flows into the Nehalem River at approximately RM 88, on the northeast edge of the study area. Knickerson Creek is classified as an intertnittent stream by the NWI. Information from the ODFW (Sheehan, 1999) indicates that water persists in the upper part of Knickerson Creek throughout the year. Vernonia Local Wetland Inve�itory and Riparian Assessment June 14, 2000 Page -11- W U W O ? � �N N � � -. < L�r U � G �+.y � n �� --� 0 � � � � � � � CC� �.,"' � � � � CG � U � a� �� o� � °� �: a� � � �� O� o � o�" � �UN o '� ai � o � � b o � NU � � � ��'� � � � � �� tw. •� � �� _000 � o � � a�0 Precipitation is a significant source of water in the study area. Average annual precipitation at Vernonia is 48.44 inches. Total precipitation during the first three months of the growing season (April, May, and June) averages 7.16 inches, 15°Io of the average annual total. Total precipitation during the growing season averages 14.82 inches, 31% of the annual total (NRCS, 1999). 3.3 Soils 3.3.1 Overview Three major soil associations are present in the study area. Most of the soils in the study area were formed in alluvium, in silty material, and in colluvium derived from sedimentary rock. Alluvium is unconsolidated sediment deposited by streams. Colluvium is soil material, rock fragments, or both moved by creep, slide, or local wash and deposited at the base of steep slopes. All soil descriptions in this section are excerpted from Soil Survey of Columbia County, Oregon (SCS, 1986). The Eilertsen-Treharne-McNulty association consists of deep, nearly level, well drained and moderately well drained silt loams that formed in old and recent alluvial deposits on long, narrow floodplains and terraces. The association is mapped along the stream drainages of the Nehalem River and Rock Creek. Eilertsen, Treharne, and McNulty soils are the main components, with smaller amounts of Natal, Hapludalfs, Dystrochrepts; and Udifluvents soils. McNulty soils are subject to frequent flooding, while Treharne soils experience a seasonal high water table and moderately slow permeability. The Vernonia-Scaponia-Braun association consists of deep and moderately deep, gently sloping to very steep, well drained silt loams that formed in colluvium derived from sedimentary rock. This map unit is on broad, stable ridgetops and side slopes of mountains. It is mapped on the western margin of the study area. Vernonia, Scaponia, and Braun soils are the main components, with smaller amounts of Mayger and Glohm soils on stable ridgetops and side slopes. Scaponia and Braun soils are on active, complex slopes of rnountains, while Vernonia soils are on broad, stable ridgetops and side slopes of mountains. The Mayger-Glohm association consists of deep and moderately deep, gently sloping to moderately steep, moderately well drained and somewhat poorly drained silt loams that formed in colluvium derived from sedimentary rock. This map unit is on smooth, broad ridgetops of tenaces and on side slopes of rolling hills. It is mapped in the northeastern portion of the project area. Mayger and Glohm soils are the main components, with smaller arnounts of Vernonia soils on stable uplands, and the poorly drained Kenusky soils in concave positions. Mayger soils are on smooth, broad ridgetops of terraces and side slopes of rolling hills, while Glohm soils are on broad, convex, stable ridgetops of tenaces and side slopes of rolling hills. Vernonia Local Wetlanci Inventory and Riparian Assessment Jc�ne 14, 2000 Page -12- 3.3.2 Hydric Soils Eleven soils are mapped within the Vernonia UGB. These soils are shown with their mapping codes in Table 1. Hydric soils and soils with hydric inclusions and wet spots also are indicated in the table. Soil mapping units and hydric soils are shown in Figure 3. Hydric soils mapped in the study area are described below. Kenusky silty clay loam (26C) is a poorly drained soil formed in clayey material and found in concave areas on mountain ridgetops. The surface layer is typically black, mottled, silty clay loam and silty clay about 13 inches thick. The subsoil consists of an upper layer about 6 inches thick of dark gray, mottled silty clay loam, and a lower layer of dark gray, mottled clay about 25 inches thick. The substratum extending to a depth of 60 inches or more is grayish brown, distinctly mottled clay. The soil is classified as clayey, mixed, mesic Typic Umbraquults. Permeability is slow to a depth of 19 inches and very slow below this depth. Only one small unit of Kenusky silty clay loam is mapped in the inventory area north of Vernonia Lake along the eastern edge of the project boundary. Natal silty clay loam (37) is a deep, poorly drained soil found in concave areas on low terraces of major streams in the Coast Range. The surface layer is typically black silty clay loam about 9 inches thick. The subsoil is mottled, very dark grayish brown and dark grayish brown silty clay about 31 inches thick. The substratum extending to a depth of 60 inches or more is mottled, very dark grayish brown and dark grayish brown silty clay. This soil is classified as fine, mixed, mesic Umbric Ochraqualfs. The permeability of Natal soil is slow, with available water capacity about 9 to 11 inches. Natal silty clay loam is mapped as a south—to-north trending band, located between Rose Avenue and Rock Creek in the northwestern portion of the study area. 3.4 Vegetation 3.4.1 Historic Vegetation Communities Vegetation in the study area has been affected significantly by recent human disturbance. The vegetation communities and conditions described below, taken from Franklin and Dyrness (1973), refer to conditions that existed before removal and disturbance of the native communities, and which would be expected, in time, to be reestablished in the Vernonia area. This vegetation information is general in nature and refers primarily to upland vegetation. Vernonia is in the western hemlock (Tsuga heterophylla) zone of the Coast Ranges Province. This province stretches from the southern end of the Olympic Peninsula to the northern end of the Klamath Mountains. The northeastern side is bordered by the Puget Trough, which extends south to the northern bank of the Columbia River. The southeastern side of the province is bordered by the Willamette Valley. Vernonia Local Wetlmicl Inventory and Riparian Assessment Jurie 14, 2000 Page -13- Table 1. Soil Types within the Vernonia UGB Soil Type Map Code Hydric Drainage Class Erosion Hazard McNulty silt loam 32 No* Well drained Moderate Treharne silt loam 58 No* Moderately well drained Slight Natal silty clay loam 37 Yes Poorly drained Slight Mayger silt loam 30 No* Somewhat poorly drained Moderate Glohm silt loam, 3 to 21-D No* Moderately well drained Slight to 30 ercent slo es moderate Vernonia silt loam 62-D No Well drained Moderate to high Scaponia-Braun silt � loams, 30 to 60 49-E No Well drained High percent north slopes Scaponia-Braun silt loams, 30 to 60 50-E No Well drained High percent south slopes Kenusky silty clay loam, 0 to 15 percent 26-C Yes Poorly drained Slight to slopes moderate Eilertsen silt loam 20 No* Well drained Slight Udifluvents- Dystrochrepts 59 No* Well to poorly drained Slight to complex moderate *May have hydric soil inclusions. Source: USDA SCS, 1972 (Soil Survey of Marion County, Oregon) USDA SCS, 1989 (Hytlric Soils of Oregon by County) Parts of the western hemlock zone are dominated by Douglas-fir (Pseudotsuga menziesii), but western hemlock is the climax species. Franklin and Dyrness subdivide the hemlock zone into six vegetation associations based on dominant vegetation, which is indicative of relative site moisture. From wettest to driest, the associations are Tsuga/Polystichum/Oxalis (hemlock/sword fern/oxalis); Tsuga/Polystichum (hemlock/sword fern); Tsuga/Rhododendron/Berberis (hemlock/rhododendron/Oregon grape); 7'sugaJKhododendron/Gaultheria (hemlock/rhododendron/salal); TsugalCastanopsis (hemlock/chinkapin); and Pseudotsuga/Holodiscus (Douglas-fir/ocean spray). All of these associations may have existed in the study area before disturbance. Most, if not all, of the components of these associations still exist in the inventory area. Activities like agriculture, logging, and construction have created conditions that re-sort the species, making the original associations difficult to locate or identify. Forested upland areas in the inventory area are dominated by Douglas-fir, with a mixed understory that contains several of the species named above. Before human disturbance, deciduous tree species (primarily red alder [Alnus rubra] and big-leaf maple [Acer macrophyllum]) were limited to riparian or naturally disturbed sites. Forest management practices, agriculture, construction, and other activities probably make both species more abundant and widespread now than they were before Euroamerican settlement. 3.4.2 Riparian Vegetation Vegetation associations discussed in this section are in and adjacent to wetlands or other water resources in direct response to the water resource. (Note that this use of "riparian" differs from the use elsewhere in this report. The use in other sections of this report refers to any site adjacent to a water resource, regardless of the presence or absence of vegetation, or the type of vegetation, if any is present.) Before Euroamerican settlement, riparian vegetation probably was widely distributed on the floodplains of the Nehalem River and Rock Creek, and possibly in corridors along Bear Creek, Knickerson Creek, and smaller drainages or wet areas. Lowland riparian sites in the floodplains of the Nehalem River and Rock Creek probably supported stands of cottonwood (Populus balsamifera), Oregon ash (Frcz�inus latifolia), willow species (Salix spp.), Douglas' hawthorn (Crataegus douglasii), red-osier dogwood (Cornus stolonifera), roses (Rosa spp.), and a variety of herbaceous species. Riparian vegetation along the tributaries may have been dominated by red alder and western red cedar (Thuja plicata). Shrubs may have included devil's club (Oplopanax horridus), thimbleberry (Rubus parviflorus), and salmoriberry (R. spectabilis). Much of the riparian vegetation in the floodplains of the study area has been removed for development. Narrow strips of forested and scrub/shrub riparian area remain on significant parts of the banks of the Nehalem River and Rock Creek. Vernonia Local Wetland Inventory and Riparian Assessment June 14, 2000 Page -14- 3.4.3 Wetland Vegetation Wetland vegetation in the Vernonia LWI study area is made up of herbaceous, shrub, and tree species. Most of the wetland acreage mapped in the inventory supports wetland shrub and tree species. Herbaceous emergent vegetation is a less dominant component of wetland species within the study area. Willows, red-osier dogwood, roses, Oregon ash, Pacific ninebark (Physocarpus capitatus), Douglas' hawthorn, and Douglas' spirea (Spiraea douglasii) were the most common wetland shrubs. The old mill site north of the Nehalem River and west of Vernonia Lake contains a mosaic of dense patches of wetland and upland shrubs. Additionally, wetland shrubs are an important understory component, adding structural diversity to forested wetlands within the study area. Willow and Oregon ash were a common association in the highly saturated wetland sites. Rose species and spirea were found in several locations. The roses were generally growing individually or in small groups. The spirea was typically found growing in small, dense stands. Oregon ash, black cottonwood, red alder, and Pacific willow (Salix lasiandra) were the four most common wetland tree species encountered in the inventory area. Cottonwood trees were concentrated along the Nehalem River floodplain. Oregon ash was the dominant tree in ten wetlands. Alder was generally found on the margins of wetlands, occupying the transitional zone between wetland and upland. Pacific willow was a co-dominant tree species with Oregon ash in two wetlands, while red alder was a co-dominant with Oregon ash in two other wetlands. Comman wetland herbaceous species in the study area included reed canarygrass (Phalaris arundinacea), slough sedge (Carex obnupta), manna grass (Glyceria sp.), and creeping buttercup (Ranunculus repens). Reed canarygrass is ubiquitous in some of Vernonia's wetlands and riparian areas. It grows in near-monocultural conditions along the Nehalem River, south and east of Vernonia Lake, and as a co-dominant species in several other wetlands. 4.0 WETLAND FINDINGS 4.1 Total Wetland Acreage The LWI mapped 18 water resources within the UGB totaling 131.37 acres (Figure 4). These water resources included 15 palustrine wetlands, one lacustrine wetland, and two riverine wetlands regulated as Waters of the State. Of the 15 palustrine wetlands, three sewage water treatment ponds (VR16) were mapped, but they are not assessed further in any way. The total acreage of palustrine wetlands mapped in the LWI is approximately 68.37 acres. The total acreage of riverine wetlands mapped in the LWI is approximately 25.3 acres. The total acreage of Iacustrine wetlands mapped in the LWI is approximately 37.7 acres. Acreage was calculated Vernonia Local Wetland Inventory and Riparian Assessme�2t Ju��e 14, 2000 Pnge -15- Table 2. Wetlands and Sizes of Wetlands Mapped in the City of Vernonia LWI Wetland Drainage Total Code Basin Acreage VR-01 Nehalem River 9.52 VR-02 Nehalem River 5.04 VR-03 Nehalem River 2.8 VR-04 Nehalem River 0.9 VR-05 Nehalem River 8.31 VR-06 Nehalem River 1.1 VR-07 Nehalem River 12.3 VR-08 Nehalem River 1.08 VR-09 Nehalem River 37.7 VR-10 Nehalem River 2.1 VR-11 Nehalem River 0.8 VR-12 Nehalem River 1.85 VR-13 Nehalem River 2.21 VR-14 Nehalem River 6.8 VR-15 Nehalem River 1.27 VR-16 Nehalem River 12.3 VR-17 Nehalem River 6.09 VR-18 Nehalem River 19.2 TOTALS '. ' 131.37'; Table 3. U.S. Fish and Wildlife Service Wetland Classes Mapped by the National Wetlands Inventory within the Vernonia UGB W U � O Z y � � �`- G� U M"ti � Q � N I < F� � V l � � � � � w � �� b b �� c� ' � "C7 �.i�'. U � � � �-1-�0� cd ' ^` � c �' ��"� ao �v� o a� � �� o � ...� t4 �, . � O s" � � � � � C t7" � d � .� �0�3 .� U '�'b ai � + `� � '� `-" U O � �,� O > U �� •� O cC -d O b ��>� � �o�o .� � ��N � .. z��.� digitally frorn the AutoCAD inventory maps. A summary of the wetland acreage and classes is shown in Table 2. Wetland summary sheets and data sheets documenting the characteristics of the wetlands to which access was permitted are arranged hy wetland in Appendix A. 4.2 Distribution and Character of Wetlands The USFWS mapped wetlands in the study area as part of the NWI program (Figure 5). The NWI map was produced by interpretation of small-scale (1 inch = 4,833 feet [1:58000]), black and white aerial photographs. Ground reconnaissance was conducted to confirm the interpretation of selected wetlands. The Cowardin classification of wetlands identified by the NWI in �lernonia are found in Table 3. The LWI conducted by SHAPIRO identified many wetlands within Vernonia that were not mapped by the NWI, because of SHAPIRO's more extensive field investigation of the study area. Palustrine forested (PFO) wetlands comprise the majority of wetlands mapped in the inventory. These wetlands range in their distribution across the study site from associations with the major stream drainages to more isolated sites in topographically low areas or near the bottom of slopes. East of the Nehalem River, forested wetland is mapped in the northeastern corner of the study area and extends north outside the study area. Other smaller forested wetland segments are mapped in residential areas east of the Nehalem River. The dominant tree species is Oregon ash, with a few specimens of red alder and Pacific willow. The understory includes Paci�c ninebark, Douglas' spirea, red-osier dogwood, and clustered rose. Herbaceous vegetation under the canopies generally consists of diverse assemblages of wetland grasses, sedges, rushes, and forbs. West of the Nehalem River, smaller, isolated Oregon ash-dominated wetlands are mapped on the eastern edge of Spencer Park and just east of Vernonia Grade School. These wetlands are located in low-lying areas on the edges of upland forest. Forested wetlands are also mapped along the Nehalem River near Vernonia Lake, west of Rock Creek in the northwestern part of the study area, adjacent to Bear Creek in the southwestern area of the study site, and at a few isolated locations west of Rock Creek. Oregon ash and red alder are the dominant tree species. Common shrubs include willow, Oregon ash, red-osier dogwood, Douglas' spirea, and clustered rose. Herbaceous species typically found in these wetlands include slough sedge, reed canarygrass, and creeping buttercup. Palustrine emergent (PEM) wetlands were mapped at locations spaced widely across the study area. The largest emergent wetland is a wet meadow area in the northeastern corner of the study site, contained within an agricultural field, adjacent to forested and scruh/shrub wetlands. The site is dominated by grasses and rushes. A fringe area of emergent wetland was identified around the edge of Vernonia Lake. Herbaceous vegetation includes broad-leaf cattail (Typha latifolia), yellow cow-lily (Nuphar luteum}, small-fruit bulrush (Scirpus microcarpusj, soft rush (Juncus e,ffusus), reed canarygrass, and broad water-weed (Elodea canadensis). 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Z : ' � -----�----------------------,. . � ��m { . .�^: �. , ,1� , ;�� _ ��.; � . "*�. �.� .� , ��- . ,. ..� � ' , ,�- _.��: �: �.: _� � _ i w U � O z � _/N � �W H � � < LL U � �o LIr � � �"� �� U� � � � � o ° �� a� � U r—��+ > �. 'L7 � � � cd � � �' O ,�� . r, `� � r-. > ^ U � � � '°� O .� � U O ' � ,—, O � �O � � N � � C ~ N � � � � b0 � O � .,"�.� �A .� � � � O � �� U o � �U �� .�� '-� � �U� .o� U � ?� 'b 'O s. � � � x �� A ponded section of Bear Creek in the southwestern part of the study area contains an emergent wetland surrounded by forested wetland. Reed mannagrass (Glyceria grandis), reed canarygrass, marsh seedbox (Ludwigia palustris), Pacific willow, and Sitka willow (Salix sitchensis) are dominant species at this wetland. Wetland mapped along Knickerson Creek in the northeastern part of the study area has sections of emergent and scrub/shrub wetland. Because of development and alterations to the stream hydrology, wetland and riparian vegetation has likely been significantly altered. South of Knickerson Creek are two areas, one predominantly classified as PEM and the other a mosaic with components of emergent, scrub/shrub, and forested wetland. These wetlands consist of open pastureland with low topography, which allows seasonal ponding to occur, and pasture intermixed with woody vegetation and trees, with a small associated drainage ditch. Several isolated wetlands also were classified as PEM. The northern section of Spencer Park is dominated by herbaceous wetland species likely supported by ponding on clay soils and a high water table. The second isolated PEM wetland is located east of Anderson Park near the water treatment facility. This area is an open field dominated by wetland grasses. Reed canarygrass, redtop (Agrostis alba), and common horsetail (Equisetum arvense) are the dominant herbaceous species at this wetland. In the southeastern part of the study area is a PEM wetland associated with a llama pasture and excavated, seasonally-flooded pond. Just east of the emergent area, on slightly higher terrain, is a mixed forested, scrub/shrub, and emergent wetland mosaic that eventually merges upslope to upland forest. Palustrine scrub/shrub (PSS) wetlands were found in two main locations. Tn the northeastern axea of the study site, north of Knickerson Creek, PSS wetland is a component of a larger forested and emergent wetland complex. Clustered rose, large-leaved lupine (Lupinus polyphyllus), slough sedge, creeping butter-cup, and Oregon ash are dominant species at this wetland. The largest PSS wetland is a previously delineated area located between the sewage water treatment ponds and Vernonia Lake. This area is a mosaic of wetland shrubs (roses, Douglas' spirea) interspersed with open areas of emergent herbaceous vegetation and upland vegetation. An isolated PS5lPEM wetland was also identified in the northern central section of the study area on sloping terrain on the margin of a clearcut. Evidence of hydrology was observed from ponding on the adjacent road and the photo signature of the site on an aerial photograph. Before logging, the site was probably forested wetland. Lacustrine limnetic open water (L10W) wetland is mapped inside the banks of Vernonia Lake. The majority of the lake surface is open water habitat. In the northern part of the lake, extensive mats of yellow cow-lily are present on the lake surface. Riverine lower perennial open water (R20W) wetland is mapped within the channels of the Nehalem River and Rock Creek. Within the study area, these streams are characterized by 1ow gradient and low water velocity. Channel banks vary from steeply incised to nearly level with the water's edge. Vegetation along the stream channels generally consists of riparian trees and Vernonia Local Wetland Inventory and Riparian Assessment June 14, 200D Page -17- shrubs, with red alder, big-leaf maple, Douglas-fir, and black cottonwood common dominant tree species. Some reaches of both streams are bordered by sections of mapped forested wetlands. These wetlands are regulated as Waters of the State. 4.3 Oregon Freshwater Wetland Assessment Methodology Results The OFWAM results are summarized in Table 4. This table is useful primarily for obtaining an overview of the current and potential functional level of each wetland. The functional level of each assessed characteristic is shown for each wetland. These functional levels are derived directly from the assessment summary forms. Expanded information about �vetlands that scored in the highest category for any of the assessed functions is provided belaw. More detailed information (individual OFWAM data sheets) should be consulted before making decisions regarding any wetland. Detailed responses used to generate the summary results are available on the data forms for each wetland, which are arranged by alphanumeric code in Appendix A. The functions of 15 palustrine and lacustrine wetlands were assessed. Nehalem River (VR18) and Rock Creek (VR17) were not assessed using the OFWAM process, because they are not jurisdictional wetlands. These wetlands are regulated as Waters of the State. Of the 15 palustrine wetlands, three sewage water treatment ponds (VR16) are not jurisdictional wetlands and were not assessed. Wetland VR07 scores the highest rank for wildlife habitat. At least four of the following criteria must be met to be given a high rank for this category: dominated by woody vegetation; presence of open water; connection to other wetlands or other bodies of water; no water quality limited streams adjacent to or above the wetland; and an unmaintained vegetated buffer greater than 25 feet wide bordering more than 40% of the wetland. These characteristics probably make the wetlands valuable habitat for a variety of wildlife species. Wetland VR13 (Knickerson Creek) scores the highest rank for fish habitat. At least four of the following criteria must be met to be given a high rank for this category: more than 75°Io of stream shaded by riparian vegetation, stream is natural or returning to natural physical character, stream contains mare than 25% of instream structures, and upstream is not water quality limited. This means other fish habitats assessed in the inventory, such as Bear Creek and Vernonia Lake, do not have outstanding fish habitat quality. It should be noted that the Nehalem River and Rock Creek were not assessed by the OFWAM process because they are not jurisdictional wetlands. Though these streams are known to contain prime fish habitat and threatened and endangered fish, their fish habitat quality is not reflected in this assessment. Wetlands VRO1, VR02, VR04, VR12, VR13, and VR15 score the highes� rank for water quality. This implies that the wetlands have valuable and effective water quality functions, such as trapping sediments or absorbing contaminants from floodwaters. Wetlands VRO2, VR03, VR04, VR06, VR09, VR12, VR14, and VR15 score the highest rank for hydrologic control. This implies that these wetlands serve valuable functions related to the control of surface water during heavy precipitation or high water events. To rank the highest Vernonia Local Wetland Inveritory and Riparian Assessrnent June 14, 2000 Page -18- category for hydrologic control, a wetland must meet at least four of the following criteria: location in the 100-year floodplain; evidence of flooding or ponding; restricted flow of water out of the wetland; woody vegetation as the dominant vegetation cover type; residential/industrial development as the dominant land use within 500 feet of the wetland on the downstream edge; and urban/urbanizing as the dominant existing land use in the watershed upstream from the area. Wetlands VROS, VR08, and VR09 score the highest category for the ability to provide educational opportunities. This rating indicates that the wetlands have significant natural resource values or are readily and safely accessible. Wetland VR09 scores the highest rank for its ability to provide recreation. This rating may be associated with fishing opportunities available in the wetland, or with opportunities to view the wetland. Wetlands can provide important non-consumptive recreation, such as wildlife viewing that may not be reflected in the analysis. Wetlands VR03, VR06, VR07, and VR09 score the highest rank for aesthetic quality. This indicates that the wetlands are easily observed from accessible viewing points, blend well with the surrounding landscape, and are not excessively degraded by objectionable sounds, odors, or visual detractors. No wetlands score the highest rank in the enhancement potential or sensitivity to future impacts categories. The assessment indicates that none of the wetlands are outstanding candidates for enhancement, although all but two of the wetlands scored in the moderate category for this characteristic. This means that these wetlands could be enhanced to some degree. All of the wetlands were found to be moderately sensitive to future impacts. The position of the wetlands in the landscape, surrounding land use zones, and existing characteristics in the watershed above the wetlands make them susceptible to degradation from future development activity. This means that care should be taken when development is undertaken adjacent to or upslope from the wetlands, in order to prevent undue degradation of these resources. Wetlands VR10 and VR11 did not score in the highest category for any of the assessed characteristics. These wetlands still possess valuable characteristics and serve useful functions that should be protected. 4.4 Locally Significant Wetlands Eleven wetlands meet OFWAM requirements for LSW for a total of 81.49�acres (Table 5). Four of these wetlands also have characteristics that qualify them as Wetlands of Special Interest for Protection (WSIP). Wetlands VR02, VR03, VR04, VR06, VR09, VR12, VR14, and VR15 qualify as LSW because they score the highest OFWAM rank for hydrologic control (described above). Vernonia Local Wetland Inventory and Riparian Assessment June 14, 2000 Page -19- i V �� N � N N N N N N N N N N N N N N .. �� .. N (6 N i9 N N N � N N N W W N N Q Y N- N N N N N N N N N N N N N N '� "O 'O 'O 'O "O V U 'O V '� 'O 'O 'p V � � C � r C r C � �. � � �G ^ 2 �L ^ 2 � ^ 2 � � N N �.� ° c' c c c' c c � .. m � .::.m m � � v� � ai � � � o� •- V � �� rn � o� o� � �.o� � � � � � � � .. m,� .�a � ,m c � d c c a c � a � � a � � .0 w >. N � 01 >. � � >. �� N T G7 T >. 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V � -o �o -a : v -o v v 0 `m o � 01 u � a: :: a; � m a% � � � � � m� � �° m 1 Q m � m m � m m m m m m � m � �� C � E c E E E E E E E c c E c � 0 t N � C � � ..% N � N � C Q Q Q Q. Q Q Q Q U Q Q Q Q Q Q � = a z z 'z 'z z z z 'z Q z z z z 'z z N � a � � lL � a J C l9 ' N L � � � d `� ;o =E a a a a_ a_ a a a ¢ a_ a � � a a � � z z z z z z z z z z z a � z z N a °„�' E � lL �1 L LL 0 d a �-o a v �o v a� �o -o v �v �o �o a - a O N N N N N N N N N m N N N N N V.. d � E �E �E �E �E �E > E �E �E �E �E �E �E �E O � J J J. J J _l ❑ _l _I _I J J J J J � �� . N N 07 01 N N N (/J �/J Ul N f!1 N N f� �y � � a � - o v �o - o v '�o - �a �o � a � � v > �> > > '> '> > �> > > '> 'n '> '� . > E = o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 E n`. a` a a a a` a a` a` a` a a a a` a � � � U U L A9 � o a o 0 0 0 0 0 ° T �� , +•! O � ry M N � K M K N N N ni N N N � c � N 3 � O � � � U . n. m 0 Z u a z h q U ' F z �' a Table 5. Significant Wetlands and Wetlands of Special Interest for Protection Wetland Results of Local Wetland Significance Results of Wetlands of ' Code ! Assessment Special Interest for Pratection Assessment VR-Ol • Wetland scores the hi hest rank for water ualit . VR-02 • Wetland scores the hi hest rank for h drolo ic control. VR-03 • Wetland scores the hi hest rank for h drolo ic control. VR-04 • Wetland scores the hi hest rank for h drolo ic control. VR-06 • Wetland scores the hi hest rank for h drolo ic control. VR-07 • Wetland scores the hi hest rank for wildlife habitat. VR-09 • Wetland scores the hi hest rank for h drolo ic control. VR-12 • Wetland scores the highest rank for water quality and • Wetland contains hydrologic control. threatened, endangered, or • Wetland is. inhabited by species listed by the federal or sensitive fish species. state government as a sensitive, threatened, or endangered species. • Wetland designated as • Wetland is rated in either. the highest or second-highest critical habitat or essentiai category for Fish Habitat in OFWAM and is adjacent to a habitat for federal or state sueam segment that is mapped by the ODFW as habitat listed threatened or for "Indi enous anadromous salmonids." endangered fish species. VR-13 • Wetland scores the highest rank for fish habitat. • Wetland contains • Wetland is rated in either the highest or second-highest threatened, endangered, or category for water quality AND borders a water quality sensitive fish species. limited stream as listed by the DEQ. • Wetland is inhabited by species listed by the federal or state government as a sensitive, threatened, or endangered species in Oregon. • Wetland rates in either the highest or second-highest category for Fish Habitat in OFWAM and is adjacent to a stream segment that is mapped by the ODFW as habitat for "Indi enous anadromous salmonids." VR-14 . Wetland scores the highest rank for hydrologic control. VR-15 • Wetland scores the hi hest rank for h drologic control. Wetlands VRO1 and VR12 qualify as LSW because they score the highest OFWAM rank for water quality. Wetland VR13 qualifies as a LSW because it scores the second-highest rank for water quality and borders a stream (the Nehalem River) that is listed by the DEQ for water quality. This usually means that the wetland has particularly valuable characteristics for maintaining the quality of water that passes through it. The implication is that compromising the water quality functions of these wetland by filling or draining them, or degrading their vegetation, could have adverse effects on water quality. Wetland VR07 qualifies as a LSW because it scores the highest OFWAM rank for wildlife habitat quality, implying that it provides important opportunities for foraging, hiding, breeding, or other essential wildlife needs. These characteristics are based on the wetland's position in the landscape relative to development and surface water resources, and diversity of plant species and structure. Wetlands VR12 and VR13 are considered LSW because they score the highest or second-highest OFWAM rank for fish habitat and are adjacent to stream segments mapped as habitat for indigenous anadromous salmonids. Specifically, wetlands VR12a and b are adjacent to VR12c (Bear Creek), which is listed as essential salmon habitat. Wetland VR13 (Knickerson Creek) is adjacent to (flows into) the Nehalem River, which is also listed as essential salmon habitat. Wetlands VR12 and VR13 qualify as LSW because they are inhabited by species listed by the federal or state government as sensitive, threatened, or endangered in Oregon. These wetlands also qualify as WSII' because they contain sensitive, threatened, or endangered fish species, or are designated as critical or essential habitat for threatened or endangered fish species. Wetlands VROS, VR08, VR10, VR11, and VR16 do not meet any criteria for identification as a LSW. Their position in the landscape, vegetation, and hydrologic and spatial characteristics prevent them from being ranked high enough to qualify as a LSW in any category. 5.0 RIPARIAN FINDINGS 5.1 Riparian Assessment Scope The riparian inventory and assessment was performed adjacent to fish-bearing waters within the study area, as defined by the contract scope of work between the City and SHA�IRO. The presence of fish was determined by consulting the City of Vernonia Wetlands Planner, the DSL Essential Salmon Habitat Maps (DSL, 1999), and through a telephone call to the Astoria office of the ODFW (Sheehan, 1999). These resources established that fish are present in Vernonia Lake, the Nehalem River, Rock Creek, Bear Creek, and Knickerson Creek. Four tree species were found to be dominant in the riparian areas. The species, along with their potential tree height (PTH, which is equivalent to the width of the assessed riparian area), are Douglas-fir (120 feet), big-leaf maple (90 feet), Oregon ash (75 feet), and red alder (65 feet). Venionia Local Wetland Inventory and Riparian Assessment June 14, 2000 Page -20- 5.2 Riparian Characterization and Results Twenty riparian reaches were evaluated. The findings are summarized in Table 6. Data characterizing them, and their functional assessments, are presented in riparian assessment data sheets in Appendix B. In most cases, the start and end points of the reaches were established based on changes in the degree of development along the water resource. For example, a change from agricultural to residential and commercial development would be used as the start and end points of reaches. Riparian study areas along the Nehalem River were divided into seven reaches, four on the left side and three on the right side. Six of the reaches are adjacent to residential, commercial, agricultural, or road development. The functional riparian values of three of these reaches (NR- L3, NR-R2, and NR-R3) have been significantly altered by removal af woody vegetation and construction of impervious surfaces and commercial and residential structures. Despite these alterations, a narrow corridor of trees and shrubs borders the river within and at the top of the banks. This vegetation, while technically mostly within the jurisdictional waters of the state because it is within the banks of the river, nevertheless has characteristics of upland vegetation rather than wetland vegetation. It makes an important contribution to maintaining water quality in the river by shading the water surface and stabilizing the river bank, preventing erosion of the bank and sediment loading in the water. These functions are normally associated with riparian vegetation in the riparian assessment. Reach NR-L4, the last reach on the downstream end of the left side of the river, borders forest. One riparian reach was assessed around Vernonia Lake. This reach passes through forested and scrub/shz areas that were the site of the Oregon-American Mill, but which are returning to a more natural state. On the southern and eastern shore of the lake, this riparian reach overlaps the second reach on the left side of the Nehalem River. Riparian study areas along Rock Creek were divided into four reaches, two on each side. The upstream reaches on both sides border grassland with scattered trees, while the downstream reaches on each side pass through developed residential and commercial parts of the City. Four riparian reaches were identified along Bear Creek. The two upstream reaches (one on each side) are in grassland with scattered trees and shrubs. The downstream reaches are in developed residential and commercial districts. The downstream reaches on both Rock Creek and Bear Creek have been affected by residential and commercial development and construction of urban infrastructure. All four of these reaches are highly developed, with only remnants of riparian vegetation and other riparian functions remaining. The Iower section of Rock Creek retains a narrow corridor of vegetation similar to that along the Nehalem River, described above. It has the same valuable functions along Rock Creek. Four riparian reaches were identified along Knickerson Creek. One upstream reach borders forest, while the other includes a combination of forest and Knott Street. The downstream reaches pass through pasture or other low-intensity agricultural fields, and low-density residential and commercial development. Vernonia Local Wetlarid l�iventory and Riparian Assessnzent Jccne 14, 2000 Page -21- � �. � � � � � � � � � � y b � � i.+ O � � C H � .� CSS a � � � � � � � � H � � '^�-��+a-� �� 3 3.�.c.c.�.� �.�.c�.��.�,� ��x�xa � .,. �, � .� �� o � � ... �.' �; � .� 3 -� � -� 3 3 .� .� ..� .� .� .� .� .� � .� .� .� .� � c., .,, .--� �E �a�a�aa�� , a � � � >., � � :�?,.�'�� o a�.�... 3.�.�. .,.�.�....., .. G7 0 -�-n o-d-d�bz�v�av•..'v-ti-�s-a-�s...bv �- c� a� a� a a� a� a� a� a� a� a� a� x a� a� a� a� a� x a� a� ,��' �� :; ,.��,,�.� �� .�,�.c.�.�.��.�.�.� �.�.�'c� � � � � � � x � � x x � � � x � � � � � � � �a � � � r� �� O y O y O O y O O r O� y O r �O�� y `j y O�� y O y O r O� O y O � C7' -�� F-, -F-i �i -F-i �i -/-� -/-i F� �'" � �'" -/-� � �i F� -F-� F+ � -/-� , �! F ' ! 'C3 �� : � � � � � � � � � � � � � � � � � � � � ' � � � �"' � � �" �" �"'i �"� �'' �-' �" � � � �"� �'' � z �cC C/� �^ O O O O O O O O O O O O O O O qA y O p O O � O O � O O O � O O O O O O O O Q y ��O ��D � N N �� 00 [� ��D N� N d� �O o0 00 a�� M � M � N N��[� N� r-+ cf' N r-i � M � d .C� � +-� N� N r-! N N,� .-� N M � N M,--i N r-+ N �xx�aaaxx�aa�xxxaaxx.� ��xxxx�Z�Zzzz��Z�Zaa�a� 6.0 SUNIlVIARY Vernonia's Goal 5 wetland resource inventory has been completed in compliance with guidance from the DSL that governs LWIs. The resulting maps are more complete and of greater resolution and accuracy than the data that have been used by the City to determine the location of possible wetlands. The inventory is a tool that can be used by the City to rnake informed planning decisions. The study area includes 994 acres. The LWI mapped 18 water resources within the UGB totaling 131.37 acres (Figure 4). Fifteen palustrine wetlands totaling 67.9 acres were identified and mapped by the LWI. Four of these wetlands have open hydrologic connections with the main drainages in Vernonia. The remaining wetlands are isolated, or may have a surface connection with the main drainages during periods of high flow. Of the 15 palustrine wetlands, three sewage water treatment ponds (VR16) were mapped, but they were not assessed further in any way. One lacustrine wetland in the study area, Vernonia Lake, has a total area of 37.7 acres. Two riverine wetlands totaling approximately 25.3 acres were included in the inventory. The Nehalem River and Rock Creek have characteristics of Waters of the State, but they do not meet all the criteria to be regulated as wetlands. They were not included in the OFWAM analysis. Of the 15 palustrine and lacustrine wetlands assessed, 11 wetlands met the criteria as LSW for a total of 81.49 acres_ Vernonia's wetlands and riparian areas have been affected to some degree by a variety of activities, including agriculture, development, forest products processing, dredging, and diking. Each of the wetlands and riparian areas within the study area continues to serve important functions associated with fish and wildlife habitat, water quality, hydrologic control, and quality of life. Vernonia Local Wetland Inventary and Riparian Assessment June 14, 2000 Page -22- 7.0 REFERENCES Baker, M. Steven (programmer) and Brent O. Forsberg (database manager). 1994. Oregon rivers information system. Digital database; Oregon Department of Fish and Wildlife, Portland, Oregon. Christy, John. 1993. Classification and catalog of native wetland plant communities in Oregon. Oregon Natural Heritage Program. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. Larse. 1979. Classification of wetlands and deepwater habitats of the united states. U.S. Fish and Wildlife Service, Office of Biological Services, FWS/OBS-79/31. Federal Emergency Management Agency. 1988. National flood insurance program flood insurance rate map, Columbia County, Oregon and incorporated areas. Map numbers 4109CO381 C and 4109CO377 C. Federal Interagency Committee for Wetland Delineation. 1989. Federal manual for identifying and delineating jurisdictional wetlands. U.S. Army Corps of Engineers, U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service, and U.S. Department of Agriculture Soil Conservation Service, Washington, D.C. Cooperative technical publication. Franklin, Jerry F. and C.T. Dyrness. 1973. Natural vegetation of Oregon and Washington. U.S. Forest Service General Technical Report PNW-8. Levine, C., ed. 1996. Oregon blue book. Secretary of State, Salem, Oregon. Natural Resource Conservation Service. 1999. WETS Station: Vernonia 2, OR8884. ftp://ftp.wcc.nres.usda. gov/support/climate/wetlands/or/41009. txt Oregon Department of Environmental Quality. 1998. Oregon's 1998 section 303(d) list of water quality limited waterbodies (public comment draft), Portland, Oregon. Oregon Division of State Lands. 1998. Urban riparian inventory and assessment guide. Oregon Division of State Lands, Salem, Oregon. Prepared by Pacific Habitat Services, Inc. Oregon Natural Heritage Program. 1998. Database search results for T7N R4W S 4,5,6,7,8,9,16,17, Willamette Meridian. The Nature Conservancy. Reed, Porter B., Jr. 1988. Nationallist of plant species that occur in wetlands: northwest (region 9). U.S. Fish and Wildlife Service, St. Petersburg, Florida. NERC-88/18.37. . 1993. National list of plant species that occur in wetlands: northwest (region 9) supplement. U.S. Fish and Wildlife Service, St. Petersburg, Florida. NERC-88/18.37. Vernonia Local Wetland Inventory and Riparian Assessment June 14, 2000 Page -23- Roth, Emily, Richard Olsen, Patty Snow, and Richard Sumner. 1996. Oregon freshwater wetland assessment methodology revised edition. Oregon Div.ision of State Lands, Salem, Oregon. U.S. Army Corps of Engineers. 1987. Corps of Engineers wetland delineation manual. Environmental Laboratory. Technical Report 4-87-1. U.S. Fish and Wildlife Service, National Wetlands Inventory. 1981. Vernonia Oregon. Aerial photograph interpretation overlaid on USGS 15-minute quadrangle. U.S. Geological Survey. 1955. Vernonia, Oregon 15-minute quadrangle topographic map. U.S. Department of Agriculture Soil Conservation Service. 1986. Soil survey of Columbia County, Oregon. U.S. Department of Agriculture Soil Conservation Service. 1989. Oregon hydric soils by counties. Vernonia, City of. 1996. Planning/zoning map. Scale 1 inch = 800 feet. St. Helens Sentinel Mist. 1949. Columbia county progress report — 1939 — 1949. Spencer B. Gross. 1994. Color aerial photograph. Negative No. SBG NW OR Forest 13-16. Sheehan, J. 1999. District Fish Biologist. Oregon Department of Fish and Wildlife, Astoria Office. Personal communication. Vernonia Local Wetland Inventory and Riparian Assessment June 14, 2000 Page -24- GLOSSARY OF ACRONYMS USED IN TEXT UGB LWI: USFWS: OAR: EPA: DSL: NWI: COE: USDA: FEMA: ORIS: ODF: ODFW: DEQ: ONHP: SCS: NRCS: OBL: FACW: FAC: FACU: UPL: OFWAM: WSIP: LSW: PTH: NGVD: Urban Growth Boundary Local Wetland Inventory U.S. Fish and Wildlife Service Oregon Administrative Rule Environmental Protection Agency Oregon Division of State Lands National Wetlands Inventory U.S. Army Corps of Engineers U.S. Department of Agriculture Federal Emergency Management Agency Oregon Rivers Information System Oregon Department of Forestry Oregon Department of Fish and Wildlife Oregon Department of Environmental Quality Oregon Natural Heritage Program Soil Conservation Service Natural Resource Conservation Service obligate wetland facultative wetland facultative facultative upland obligate upland Oregon Freshwater Wetland Assessment Methodology wetlands of special interest for protection locally significant wetlands potential tree height National Geodetic Vertical Datum Vernonia L.ocal Wetland Inventory and Riparian Assessment June 14, 2000 Page -25- , . ' ; �. - ., . . . . . . . .. . .. ` . .- ` . . �o . , � .. . . , . . . . ��. . �. . . � . .. . , Ap . .en �� ; �Vetlanrl Dat�. and. Su��ry Sheets . : ' VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11/2/99 Investigator(s): JG/ES/DC Wetland Mapping Code Size (acres): 9.52 VR-01 a, b, c, d, e, f Data Sheet Numbers: 9, 2, 30 Location Legal: T4N, R4W, S4&5 Other: N of Cedar Street, between Third and Jefferson Street. Basln: Nehalem River Soils Mapped Series: 37 - Natal silty clay loam, 26C - Kenusky silty clay loam 0-15% slopes, Glohm silt loam 3- 30% slopes Hydrology � Hydrologic Source: Surface runoff Wetland Classification(s): PEM Dominant Vegetation Trees Shrubs Vines Herbs Comments•' This was an off-site assessment for much of 1 a, b, c, e, f because access was granted only for Wetland 1 a. Wetlands 1 a and 1 b are combinations of PFO/PEM wetlands. Some are probably only marginally wet, based on off-site observations of vegetation. The intermittent stream that passes through this system is deeply incised in places, and has good wetland vegetation in other parts. Wetland 1 c has been partly filled in the southern end. Wetland 1d and part of 1c adjacent to the railroad bed/road are good-quality wetlands with a diverse plant community. Wetlands 1 c and 1 d are hydrologically connected by a culvert under the railroad bed. Wetland e is a wetland swale which reportedly was historical stream channel. Wetland f is a stream drainage wetland swale dominated by emergent vegetation.. The vegetation boundary on the northeastern side is distinct. Solidago canadensis, Daucus carota, Cirsium arvense, and Pteridium aquilinum are dominant in the upland meadow. Upland trees include Pseudotsuga menziesii and Acer macrophyllum. Cytisus scoparius, Holodiscus concolor, and Rubus discolor are visible on the margin. Precipitation and groundwater are the water sources for the northern meadow. The southern part receives surface flow from west of Rose Avenue. The southeastern field (with fill) is surrounded by ash (Fraxinus latifolia) trees. Fisher Creek flows directly onto the site. Spiraea douglasii is growing around the edges of the fill; reed canarygrass is growing in the fill. Fisher Creek is confined to the channel above and directly below Rose Avenue. The channel disappears on the eastern side of the street. The field south of the fill has Holcus lanatus, Juncus effusus, Rosa pisocarpa, Phalaris arundinacea, and Fraxinus latifolia saplings. The section west of Second Street has Phalaris arundinacea, Juncus effusus, Juncus ensifofius, and Carex unilateralis. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAPIRO Project Number.� 2995023 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Ciient/Applicant: Citv of Vernonia Site: VR-lc Plot: 30 T 4N R 4W S 5 City: Vernonia County: Columbia State: OR Plot Location; Topography Ruth Street right-of-way, flat. Project #: Date: DETERMINATION: IS THIS PLOT IN A WETLAND?:yes Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATION Dominant Plant Species Ind. %Cover: Ind. °/aCover: Herb Stratum -% total cover: 40 Shrub/Saplinq Stratum -% total cover: _50 Carex obnupta OBL 100 Fraxinus latifolia FACW 30 Symphoricarpos albus FACU 30 Rosa pisocarpa FAC 20 Cornus stolonifera FACW 10 Crataegus douglasii FAC 5 Spiraea douglasii FACW 5 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: RO Fraxinus latifolia FACW 100 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 4 of 5 = 80 %(50/20 Rule) ' Vegetation Criterion Met? ! �Yes SOILS':' Mapped Unit Name: 37 - Natal silty clay loam Drainage Class: Poorlv drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-3" 10 YR 3/1 10 YR 4/4 few, fine, faint mottles Silty clay loam 3-16" 10 YR 3/1 10 YR 4/4 common medium distinct Silty clay loam ❑ Histosol ❑ Prob. Aquic moisture regime � Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Concretions exist at the 3-16 inch leveL �� Soil`�Criterion Met? � !; �Yes Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑� Drift lines Explain: � Sediment deposits ❑ Other � Drainage patterns Explain: Remarks: Soil is slightly moist. Determined by: JG1 Hydrology Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET - 1987 MANUAL Client/Applicant: Citv of Ve onia Site: VR-Old Plot: O1 T 4N R 4W S 4 CitY: Vernonia County: Columbia State: OR Plot Location; Topography East of Weed Ave. anc3 N of "E" St. About 50 feet SW of the NW corner of the pasture on Jim Brunsman's property. Project #: 2995023 Determined by: CM/JG Date: 6/18/99 DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No EGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 40 Shrub/Saqlinq Stratum -% total cover: 40 Polystichum munitum FACU 40 Acer circinatum FAC- 30 Galium aparine FACU 10 Symphoricarpos albus FACU 30 Smilacina racemosa FAC- 10 Berberis nervosa UPL 20 Fragaria virginiana FACU 5 Corylus cornuta FACU 10 Holodiscus discolor UPL 10 Woodv Vine Stratum -% total cover: 10 Tree Stratum -% total cover: 70 Lonicera ciliosa UPL 60 Pseudotsuga menziesii FACU 85 Rubus ursinus FACU 40 Acer macrophyllum FACU 15 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 0 of �_ = p%(50/20 Rule) Vegetation Criterion Met? ` No SOILS Mapped Unit Name: 37 - Natal silty clay loam Drainage Class: Poorly drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-2" 10 YR 3/3 2-16" 10 YR 4/4 Approx. 70% organic debris Loam ❑ Histosol ❑ Prob. Aquic moisture regime ❑ Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Soit Criterion Met? No HYDROLOGY Depth of inundation 0" Depth to water tabfe: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" � Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Remarks: No positive hydrological indicators. Hydrology Criferion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-Old Plot: 0� T 4N R 4W S 4 City: Vernonia County: Columbia State: OR Plot Location; Topography NW corner of Jim Brunsman's property, east of Weed Ave. and north of "E" St. Broad, flat bottom area confined by the R/R grade to the west. Project #: 2995023 Determined by: CM/JG D a t e: 6/18/9.9 DETERMINATION: IS THIS PLOT IN A WETLAND?:yes Do Normal Circumstances exist on the site? Yes Are Soils❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -°/a total cover: 60 ShrublSanlinq Stratum -% total cover: 10 Carex obnupta OBL 100 Fraxinus latifolia FACW 90 Rubus parv�orus FAC- 10 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: 'i0 Fraxinus latifolia FACW 75 Rhamnus purshiana FAC- 25 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 3 of 4 = 75 %(50/20 Rule) Vegetation Criterion Met? Yes SOILS Mapped Unit Name: 37 - Natal silty clay loam Drainage Class: Poorly drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0 10 YR 3/1 Silty clay loam 7-13" 2.5 Y 3/1 7.5 YR 4/6 many, coarse, prominent Clay loam 13-1$° 2.5 Y 4/1 7.5 YR 4/6 many, coarse, prominent Clay loam ❑ Histosol ❑ Prob. Aquic moisture regime � Redox features ❑ organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer � On hydric soils list �- Soil Criterion Met? � Yes: Depth of inundation 0" Depth to water table: >18" Qepth to saturation: >18" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres ❑ Locaf soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits � Other ❑ Drainage patterns Explain: Remarks: Nearly saturated throughout the soil profile. Positive hydrology is inferred from the sample plot's location on the landscape, the dominance of hydrophytes, and the prominent redox features. Hydrotogy Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 Wildtife Fish Habitat Habitat Streams Q1: A Q1: Q2: C Q2: Q3: B Q3: Q4: C Q4: Q5: B Q5: Q6: B Q6: Q7: A Q8: A Q9a: Q9b: A Q1: B Q2: A Q3: A Q4: A Q5a: Q5b: A Q6: S Fish Habitat Lakes/Ponds Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: C A B B A B Water Quality Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Control A Q1: B A Q2: A A Q3: A A Q4: B A Q5: C C Q6: A Q7: C A Q1: C Q2: C Q3: B Q4: B Q5: B Q6: A C B B A A Sensitivity to Impact Q1: B Q2: B Q3: C Q4: A Q5: Q6: B OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-01 a, b, c, d ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitaf The wetland provides habitat for some wildlife species. Two or more Cowardin wetland classes. Emergent veg. or wet meadow. Moderate degree of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland not connected to another body of water, but water within 1 mile. Wetland not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Exclusive Forest use or Open Space within 500 feet of wetland edge. More than 40% of wetland edge bordered by veg. buffer 25 or more feet wide. Fish Habitat - Streams Fish Habitat - Lakes/Ponds N/A N/A Water Quality The wetland's water quality SurFace flow (including streams and ditches) function is intact. is wetland's primary source of water. Evidence of flooding or ponding during part of the growing season. High (>60%) degree of wetland vegetation cover. More than 5 acres of wetland area. Residential/Industrial land use within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic No part of wetland located within 100-year control function is impacted floodplain or enclosed basin. Evidence of or degraded. flooding or ponding during the growing season. Area is more than 5 acres. Minor restrictions slow down waterflow out of the wetland. Emergent veg. or wet meadow is dominant cover type. Residential/Industrial land use within 500 ft of wetland on downstream or down-slope edge of wetland. Forested or natural area land use upstream. Sensitivity fo Impact The wetland is potentially Stream flow or bank has not been modified by sensitive to future impacts human activities within 1 mife above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not listed as water quality limited in watershed upstream of the or adjacent to the wetland. Residential/industrial (developed) land use within 500 feet of wetland's edge. Emergent veg. only or wet meadow is the dominant cover. Enhancement Potential The wetland has moderate potential for enhancement. Wetland has lost one or more functions or one or more functions is not present in assessment results for wildlife habitat, fish habitat, water quality and hydrologic control. Wetland's primary source of water is surface flow, including streams and ditches. Water flow into wetland is not restricted, but if OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-01 a, b, c, d ProjectNumber: 2995023 Function Evaluation Descriptor Rationale ' blocked, obstruction can be removed easily. Wetland's area is more than 5 acres. More than 40% of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sensitive to future impacts. Education The wetland site is not Wetland site is not open to the public for appropriate for educational direct access or observation. There are no , use. visible hazards to the public at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is no existing physical public access to other features, but observation of other features can be made. There is a maintained public access point within 250 feet of the wetland's edge. Access is not available for limited mobility. Recreafion The wetland has the There is a maintained public access point potential to pravide within 250 feet of wetland's edge. Wetland not recreational opportunities. accessible by boat-no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Aesthetic Quality The wetland is considered More than two Cowardin classes are visible to be moderately pleasing. from primary viewing area(s). Less than 25% of wetland is visible from viewing area(s). General appearance of wetland has visual detractors, which can be removed easily. Visual character with surrounding area is landscaped or manipulated by people. Natural, pleasant odors are present at primary viewing location. Some traffic and other similar sounds and natural sounds are audible at primary viewing locations. Vernonia Wetlands of Special Interest for Protection Assessment Answer Sheet WetlandCode: VR01 Question 1 B List: Question 2 B List: Question 3 B List: Question 4 B List: Question 5 B Question 6 B Question 7 B Lisf: Question 8 B - Question 9 B Question 10 B Shapiro and Associates, Inc:, 1650 N.W. Naito Parkway, Suite 302, Portiand, Oregon 97209 Project Number: 2995023 Vernonia . Local Wet[and Significance Assessment WetlandCode: VR01 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROfv1 UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for #he purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland does N meet t he criteri for identific as a Local Signi We tland B. "IN" No Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivaient methodofogy: No wildlife habitat, No fish habitat, No water quality, No hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent} AND that (2) the wetland is within one-quarter mife from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is iocated adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY ` - Wetland Summary Sheet - Date(s) of Field Verification: 11/2/99 Wetland Mapping Code: VR-02 Investigator(s): JG/DC Size (acres): 5.04 � Data Sheet Numbers: 3, 4 Location � Legal: T4N, R4W, S4 Other: Westbank of Rock Creek, from UGB to B Street. Basin: Nehalem River Soils Mapped Series: 32 - McNulty silt loam Hydrology Hydrologic Source: Flooding from Rock Creek Wetland Ciassification(s): PFO Dominant Vegetation Trees Shrubs Vines Herbs Fraxinus latifolia Cornus stolonifera Hydrophyllum tenuipes Alnus rubra Sambucusracemosa Ranunculus repens Vancouveria hexandra Tellima grandiflora Urtica dioica Phalaris arundinacea Comments: Access was obtained only for part of this wetland. Wetland 2 is a PFO wetland adjacent to the Nehalem River. Most of the wetland has a canopy of cottonwood (Populus balsamifera) trees, with some ash (Fraxinus latifolia). There is an understory of mixed shrubs and herbaceous species in areas that are open enough to allow enough light in. Parts of the wetland are narrow, restricted to the immediate bank of the river. Other parts extend 100 to 200 feet away from the river. These wider areas include low spots that retain floodwater for prolonged periods. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAP/RO Project Number.• 2995023 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: �itv of Vernonia Site: VR-02 Plot: 03 T 4N R 4W S 4 City: Vernonia County: �olumbia State: OR Plot Location; Topography NE corner of Jim Brunsman's property near the W bank of Rock Creek. Project #: 2995023 Qetermined by: CM/JG D 6/18/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:yes Comments: Wetland area downstream from sample plot 3 becomes ponded and channelized. Do Normal Circumstances exist on the site? Yes Are Soits❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No EGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -°/a total cover: 30 ShrublSaplinq Stratum -% total cover: 30 Hydrophyllum tenuipes UPL 35 Cornus stolonifera FACW 80 Ranunculus repens FACW 20 Sambucus racemosa FACU 20 Vancouveria hexandra UPL 20 Tellima grand�ora UPL 15 Urtica dioica FAC+ 5 Phalaris arundinacea FACW Woodv Vine Stratum -% total cover: Q Tree Stratum -% total cover: 40 Fraxinus latifolia FACW 67 Alnus rubra FAC 33 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 4 of 7= 5%(50/20 Rule) Vegetation Criterion Met? . Yes SOILS Mapped Unit Name: 32 - McNulty silt loam Drainage Class: Well drained Taxonomy: Coarse-loamy, mixed, mesic Fluventic Umbric Dystrochrepts FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure. Other 0-18" 10 YR 3/3-4/2 10 YR 4/3-3/4 many, fine/medium Loam ❑ Histosol ❑ Prob. Aquic moisture regime � Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: McNulty silt loam may have inclusions of Natal soil and poorly drained soil. McNulty silt loam is found in abandoned meanders. Soil Criterion Met? Yes HYDROLOGY Depth of inundation 0" Depth to water table: >18" Depth to saturation: >18" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated O Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test 0 Water marks ❑ Recorded data (aerials, groundwater data) � Drift lines Explain: . ❑ Sediment deposits ❑ Other ❑ Drainage pa#terns Explain: Remarks: Soil was moist throughout the profile. Drift line deposits in vegetation were approximately 1.5 feet above the ground. This area is susceptible to flooding. Hydrology Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503} 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-02 Plot: 04 T 4N R 4W S 4 City: Vernonia Counry: �olumbia State: OR Plot Location; Topography NE corner of 3im Brunsman's property. About 300 feet SE of McCleod residence. Project #: 2995023 Determined by: CM/JG D 6/18/99 DETERMfNATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumsfances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATION Dominant Plant Species Ind. °/aCover: Ind. %Cover: Herb Stratum -% total cover: 0 ShrublSanlina Stratum -% total cover: 0 Festuca arundinacea FAC- 50 Acer circinatum Dactylis glomerata FACU Polystichum munitum FACU Phalaris arundinacea FACW Tellima grand�ora UPL Pteridium aquilinum FACU FAC- 20 Corylus cornuta FACU 10 Sambucus racemosa FACU 10 Rubus parviflorus FAC- 5 5 40 30 15 15 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: 0 Rubus laciniatus FACU 70 Acer macrophyllum FACU 60 Rubus ursinus FACU 30 Alnus rubra FAC 20 Thuja plicata FAC 10 Pseudotsuga menziesii FACU 10 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 1 of g= 12 %(50/20 Rule) Vegetation Criterion Met? No SOILS Mapped Unit Name: 32 - McNulty silt loam Drainage Class: Well drained Taxonomy: Coarse-loamy, mixed, mesic Fluventic Umbric Dvstrochrepts FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-4" 10 YR 3/2 4-14" 10 YR 4/2 14-18" 10 YR 4/3 Mixed charcoaUorg. debris 10 YR 4/4-4/6 many, medium Silt loam Loam ❑ Histosol ❑ Prob. Aquic moisture regime � Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan � Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Soil Criterion Met? Yes HYDROLOGY Depth of inundation Q" Depth to water table: >18" Depth to saturation: >18" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Saturated in upper 12" ❑ Water marks ❑ Drift lines ❑ Sediment deposits ❑ Drainage patterns ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Recorded data (aerials, groundwate� data) Explain: ❑ Other Explain: Remarks: No positive hydrological indicators. Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 Wildlife Fish Habitat Fish Habitat Habitat Streams 'Lakes/Ponds Q1: B Q1: Q1: Q2: A Q2: Q2: Q3: C Q3: Q3: Q4: C Q4: Q4: Q5: A Q5: Q5: Q6: A Q6: Q6: Q7: B Q8: A . Q9a: Q9b: A Q1: B Q1: C Q2: A Q2: B Q3: A Q3: B Q4: B Q4: A Q5a: Q5: A Q5b: A Q6: B Q6: B Water Quality Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Sensitivity to Controi Impact A Q1: A Q1: A A Q2: A Q2: B A Q3: B Q3: A B Q4: C Q4: C C Q5: A Q5: A A Q6: A Q6: A Q7: C A Q1: B Q2: C Q3: B Q4: B Q5: B Q6: B C C B A A OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-02 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitat The wetland provides One Cowardin wetland class with more than 5 � habitat for some wildlife plant species. Woody vegetation is dominant species. vegetation cover. Low degree of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland connected to another body of water by surface water. Wetland connected to other wetlands within a 3 mile radius. One or more upstream reaches are listed moderate water quality. Exclusive Forest use or Open Space within 500 feet of wetland edge. More than 40°l0 of wetland edge bordered by veg. buffer 25 or more feet wide. Fish Habitat - Streams N/A Fish Habitat - Lakes/Ponds N/A . Water Quality The wetland's water quality Surface flow (including streams and ditches) function is intact. is wetland's primary source of water. Evidence of flooding or ponding during part of the growing season. High (>60%) degree of wetland vegetation cover. Between 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. Exclusive Forest use or Open Space within 500 feet of wetland edge. One or more upstream reaches are listed water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic All or part of wetland located within 100-year control function is intact. floodplain or enclosed basin. Evidence of flooding or ponding during the growing season. Area is between 0.5 and 5 acres. Waterflow out of wetland is unrestricted. Woody vegetation is dominant cover type. Residential/Industrial land use within 500 ft of wetland on downstream or down-slope edge of wetland. Forested or natural area land use upstream. Sensitivity to Impact The wetland is potentially Stream flow or bank has been modified by sensitive to future impacts liuman activities within 1 mile above wetland. Water is not being taken out of streams ` through active diking, drainage, or irrigation districts upstream. One or more upstream reaches listed as water quality limited in watershed or adjacent to the wetland. Exclusive Forest use or Open Space within : 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Woody vegetation is the dominant cover. Enhancement Potential The wetland has moderate Wetland has lost one or more functions or potential for enhancement. one or more functions is not present in assessment results for wildlife habifat, fish habitat, water quality and hydrologic control. OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-02 ProjectNumber: 2995023 . Function Evaluation Descriptor Rationale Wetiand's primary source of water is surface flow, including streams and ditches. Water flow into wetland is not restricted, but if blocked, obstruction can be removed easily. Wetland's area is between 0.5 and 5 acres. More than 40% of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sensitive to future impacts. Education The wetland site is not Wetland site is not open to the public for appropriate for educational direct access or obsenration. One to two use. visible safety hazards exist at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is existing physical public access to other features or it can be created easily and other habitats can be observed from this site. There is a maintained public access point within 250 feet of the wetland's edge. Access is not available for limited mobility. Recreation The wetland has the There is a maintained public access point potential to provide within 250 feet of wetland's edge. Boat launch recreational opportunities. could be developed within 0.5-1 mile. No existing trails and viewing areas to guide user � or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Aesthetic Quality The wetland is not pleasing. Two Cowardin classes are visible from primary viewing area(s). Less than 25% of wetland is visible from viewing area(s). General appearance of wetland has visual detractors which cannot be removed easily. Visual character with surrounding area is landscaped or manipulated by people. Natural, pleasant odors are present at primary viewing location. Some traffic and other similar sounds and natural sounds are audible at primary viewing locations. Vernonia Wetlands of Special Interest for Protection Assessment Answer Sheet WetlandCode: VR02 Question 1 B List: Question 2 B List: Question 3 B List: Question 4 B List: Question 5 B Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia ' Local Wetland Significance Assessment WetlandCode: VR02 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controiling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activiry; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland MEETS the criteria for identification as a Local Significant Wetland f:�� Yes Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, No water quality, Yes hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date{s) of Field Verification: 11/2/99 Wetland Mapping Code: VR-03 Investigator(s): JG/DC Size (acres): 2.8 Data Sheet Numbers: 5, 6, 7 Location Legal: T4N, R4W, S3 Other: N of Birch Street Basin: Nehalem River Soils. Mapped Series: 37 - McNulty silt loam, 62D - Vernonia silt loam 3-30% slope, 58 - Treharne silt loam Hydrology Hydrologic Source: Groundwater Wetland Classification(s): Dominant Vegetation Trees Fraxinus latifolia Shrubs Rosa pisocarpa Spiraea douglasii Vines Herbs Juncus effusus Carex obnupfa Rorippa curvisiliqua Gnaphalium palustre Ludwigia palustris Plantago major Phalaris arundinacea Wetland 3 consists of two tobes. The eastern lobe is forested, with small clearings. Herbaceous species and some shrubs grow in the clearings. Hydrology is subsurface. This lobe is on the western aspect of a hillside. The western lobe is in a residential neighborhood, It consists primarily of an excavated pond (<0.2 acre) that is seasonally flooded. The yard with the pond is used as pasture/recreation area for Ilamas. Their activity keeps vegetation to a minimum. The owner stated that the site had always been wet, and that excavation just made the pond deeper, bigger, and longer lasting. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAP/RO Project Numbec 2995023 WETLAND DETERMINATION DATA SHEET -1987 MANUAL ClienUApplicant: Citv of Vernonia Site: VR-03 Plot: OS T 4N R 4W S 3 City: Vernonia County: Columbia State: OR Piot Location; Topography Residence with dry ponded area and llamas. Project #: 2995023 Determined by: JGBS Date: 7/21/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:Yes Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATION Dominant Piant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 50 Shrub/Sanlinp Stratum -% total cover: 0 Ludwigia palustris OBL 40 Gnaphalium palustre FAC+ 25 Rorippa curvisiliqua OBL 20 Plantago major FACU 10 Phalaris arundinacea FACW 5 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: 0 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- �_ of �_ = 100 %(50/20 Rule) Vegetation Criterion Mst? Yes' SOILS' Mapped Unit Name: 3Z - Natal silty clay loam Drainage Class: Poorly drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-18" 10 YR 5/1 5 YR 5/8 common, medium, prominent Silty clay ❑ Histosol ❑ Prob. Aquic moisture_ regime ❑� Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Soil surface is distinctly cracked. Soil is moist to the surace at the lowest point of the site. Soi(.`-Griterion Me.t? x Yes' Depth of inundation Q" Depth to water table: >18" Depth to saturation: >18" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Remarks: Resident says site is typically wet through May and sometimes into June. Prior to pond excavation, the site was historically ponded during the winter. Hydrolagy Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL ClienUApplicant: Citv of Vernonia Site: _yR-03 Plot: 06 T 4N R 4W S�_ City: Vernonia County: Columbia State: OR Plot Location; Topography W edge of Dailey pasture, central N/S. Project #: 2995023 Determined by: JG/ES Date: 7/21/99 DETERMINATION: IS THIS PLOT IN A WETLAND?: No EGETATION Dominant Plant Species Ind. %Cover: Herb Stratum -°/a total cover: 100 Chrysanthemum leucanthemum UPL 30 Poa sp. FACU 20 Agrostis stolonifera FAC 20 Trifolium repens FAC 20 Cirsium vulgare FACU 10 Woodv Vine Stratum -°/a total cover: 0 Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No Ind. %Cover: Shrub/Saalina Stratum -% total cover: 0 Tree Stratum -% total cover: 0 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 0 of 0 = 0%(50/20 Rule) Vegetation Crite"rion Met? No SOILS Mapped Unit Name: 37 - Natal silty clay loam Drainage Class: Poorly drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-8" 10 YR 3/2 Clay silt loam 8-18" 10 YR 3/1 Clay silt loam ❑ Histosol ❑ Prob. Aquic moisture regime ❑ Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Soil Criterion;Met? ' Yes Depth of inundation Primary Indicators: ❑ Inundated ❑ Saturated in upper 12" ❑ Water marks ❑ Drift lines ❑ Sedimenf deposits ❑ Drainage patterns Depth to water table: Secondary Indicators (2 or more required): ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Recorded data (aerials, groundwater data) Explain: ❑ Other Explain: Depth to saturation: Remarks: Oxidized rhizospheres exist on old root channels, not on current live roots. Hydrology Criterion Met? ' No' Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Appiicant: Citv of Vernonia Site: VR-03 Plot: 07 T 4N R 4W S�_ City: Vernonia County: Columbia State: OR Plot Location; Topography Upslope from Dailey wetland, 300 feet N of Cherry Street on bench. Ground is level. Project #: 2995023 Determined by: JS/ES Date: 7/22/99 DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No EGETATION Dominant Plant Species Ind. °/aCover: Ind. %Cover: Herb Stratum -% total cover: 90 Shrub/Sanlinq Stratum -% total cover: 10 Agrostis alba FAC 50 Pyrus malus UPL 50 Ranunculus repens FACW 20 Rosa pisocarpa FAC 50 Festuca arundinacea FAG 10 Hypochaeris radicata FACU 5 Dactylis glomerata FACU 5 Anthoxanthum odoratum FACU 5 Holcus lanatus FAC 5 Woodv Vine Stratum -°/a total cover: 30 Tree Stratum -% total cover: 0 Rubus ursinus FACU 100 . Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 3 of 5 = 60 %(50/20 Rule) lfegetation Criterion Met? ' Yes SOILS; Mapped Unit Name: 62D - Vernonia silt loam 3-30% slopes Drainage Class: Well drained Taxonomy: Fine-silty, mixed, mesic Ultic Hapludalfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-8" 10 YR 3/2 Silt loam 8 transition, Silt loam mixed, � 0 YR 3/2 & 3/4 14-16" 10 YR 3/4 Possibly mottled Silt loam � Histosol ❑ Prob. Aquic moisture regime ❑ Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑� Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer � On hydric soils list ❑ Inundated ❑ Saturated in upper 12" ❑ Water marks ❑ Drift lines ❑ Sediment deposits ❑ Drainage patterns ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Recorded data (aerials, groundwater data) Explain: ❑ Other Explain: Remarks: Entire area possibly drained; in hydric soil. � Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 Depth of inundation Depth to water table: Depth to saturation: Primary Indicators: Secondary Indicators (2 or more required): OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Date(s): 11/02/99 Investigator(s): JG/DC Project Name: City of Vernonia WetlandCode: VR-03 ProjectNumber: 2995023 Wildlife Fish Habitat Fish Habitat Habitat `Streams Lakes/Ponds Q1: A Q1: Q1: Q2: A Q2: Q2: Q3: C Q3:. Q3: Q4: C Q4: Q4: Q5: B Q5: Q5: Q6: B Q6: Q6: Q7: A Q8: C Q9a: Q9b: A Water Quatity Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Sensitivity to Control impact C A B B A C Q1: B Q1: C Q2: B Q2: A Q3: Q3: B Q4: B Q4: B Q5a: Q5: A QSb: A Q6: B Q6: B Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: Q7: A Q1: C Q2: C Q3: B Q4: B Q5: B Q6: A Q1: A A Q2: B B Q3: C A Q4: A A Q5: A Q6: A C A B B B A A OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-03 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitat The wetland provides habitat for some wildlife species. Two or more Cowardin wetland classes. Woody vegetation is dominant vegetation cover. Low degree of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland not connected to another body of water, but water within 1 mile. Wetland not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Residential/Industrial land use within 500 feet of wetland edge. More than 40% of wetland edge bordered by veg. buffer 25 or more feet wide. Fish Habifat - Streams N/A Fish Habitat - Lakes/Ponds N/A Water Quality The wetland's water quality Groundwater (including seeps and springs) is function is impacted or wetland's primary source of water. Evidence degraded. of flooding or ponding during part of the growing season. Moderate (approx. 60%) degree of wetland vegetation cover. Between 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. � Residential/Industrial land use within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the � wetland. Hydrologic Control The wetland's hydrologic All or part of wetland located within 100-year control function is intact. floodplain or enclosed basin. Evidence of flooding or ponding during the growing season. Area is between 0.5 and 5 acres. Waterflow out of wetland is restricted or no outlet. Woody vegetation is dominant cover type. Residential/Industrial land use within 500 ft of wetland on downstream or down- slope edge of wetland. �orested or natural area land use upstream. Sensitivity fo Impact The wetland is potentially Stream flow or bank has been modified by sensitive to future impacts human activities within 1 mile above wetland. Water is not being taken out of streams through active dikin.g, drainage, or irrigation districts upstream. Upstream not listed as water quality limited in watershed upstream of the or adjacent to the wetland. Residential/industrial (developed) land use within 500 feet of wetland's edge. Woody vegetation is the dominant cover. Enhancement Potential The wetland has moderate Wetland has lost one or more functions or potential for enhancement. one or more functions is not present in assessment results for wildlife habitat, fish habitat, water quality and hydrologic control. Wetland's primary source of water is groundwater, including springs and seeps. OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-03 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wetland's area is between 0.5 and 5 acres. More than 40% of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sensitive to future . impacts. Education The wetland site is not Wetland site is not open to the public for . appropriate for educational direct access or observation. There are no use. visible hazards to the public at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is no existing physical public access to other features, but observation of other features can be made. There is a maintained public access point within 250 feet of the wetland's edge. Access is not available for limited mobility. Recreation The wetland has the There is a maintained public access point potential to provide within 250 feet of wetland's edge. Wetland not recreational opportunities. accessible by boat-no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or. plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Aesthetic Quality The wetland is considered More than two Cowardin classes are visible to be pleasing. from primary viewing area(s). Between 25 and 50% of wetland is visible from viewing area(s). General appearance of wetland has visual detractors, which can be removed easily. Visual character with surrounding area is landscaped or manipulated by people. Natural, pleasant odors are present at primary viewing location. Some traffic and other similar sounds and natural sounds are audible at primary viewing locations. Vernonia Wetlands of Speciat Interest for Protection Assessment Answer Sheet WetlandCode: VR03 Question 1 B List: Question 2 B List: Question 3 B List: Question 4 B List: Question 5 B Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia Local Wetland Significance Assessment WetlandCode: VR03 A. "OUT" Test No Wetfands artificia{1y CREATED ENTIRELY FROM kJPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionaily created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland MEETS the criteria for identification as a Local Significant Wetland B. �•�N•� Yes Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, No water quality, Yes hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the fecleral or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11I2/99 Investigator(s); JG/ES Wetland Mapping Code: VR-04 a, b, c, d Size (acres): 0.9 Data Sheet Numbers: 8, 9 Location LegaL• T4N, R4W, S3 Other: E of Nehalem Hwy. from Birch to Elm Street Basin: Nehalem River Soils �� Mapped Series: 58 - Treharne silt loam Hydralogy ? Hydrologic Source: Surface runoff Wetland Classification(s): Dominant Vegetation Trees Fraxinus latifolia Salix lasiandra Shrubs Salix lasiandra Vines Herbs Cicuta douglasii Glyceria borealis Rorippa curvisiliqua Juncus bufonius Polygonum persicaria Comments,•: These four segments of remnant wetland are in backyards and empty lots. In winter, the shallow swale fills with water, or soils are saturated. Wetland 4a is a forested swale with a remnant buffer; the rest of the portions are disturbed or mowed grasses. Portions of the wetlands are reduced to a shallow swale. Wettand Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated botiom SHAPIRO Project Number. 2995023 WETLAND DETERMINATION DATA SHEET - 1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-04a Plot: 08 T 4N R 4W S 3 City: Vernonia County: Columbia State: OR Plot Location; Topography Flag lot N of Birch Street, E of the Nehalem Rover. Gently loping drainage swale. Project #: Determined by: JG/ES Date: 7/22/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:yes Comments: Site is mainly a drainage swale bordered by ash and willow trees. Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATIQN Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -°lo total cover: 50 Shrub/Saplinq Stratum -% total cover: 10 Cicuta douglasii OBL 30 Salix lasiandra FACW 70 Glyceria borealis OBL 20 Salix sp. FAC 30 Rorippa curvisiliqua OBL 20 Juncus bufonius FACW 2U Polygonum persicaria FACW 20 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: 60 Salix lasiandra FACW 50 Fraxinus latifolia FACW 50 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- _� of 9 = 100 %(50/20 Rule) ' Uegetation Criterion Met? ' Yes SOILS Mapped Unit Name: 58 - Treharne silt loam Drainage Class: Moderately well-drained Taxonomy: Fine-silty, mixed, mesic Aquultic Hapludalfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-9" 10 YR 3/2 10 YR 3/6 7.5 YR 5/8 common, medium, distinct Silt loam 9-16" 10 YR 4/1 7.5 YR 4/6 common, medium, distinct � Clayey silt ❑ Histosol ❑ Prob. Aquic moisture regime � Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Mixed material (charcoal) in matrix. Soil very moist to bottom of pit. Soil Criterion Met? Yes Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other �❑ Drainage patterns Explain: Remarks: Resident says site remains flooded until May. Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vemonia Site: yR-04a Plot: 09 T 4N R 4W S 3 City: Vernonia County: Columbia State: (�R _ Plot Location; Topography Plot is on edge of resident's lawn approx. 30 feet W of plot 7. Project #: 2 995023 Determined by: JG/ES Date: 7/22/99 DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No EG.ETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 100 Shrub/Sanlinp Stratum -% total cover: 0 Poa sp. FACU 30 Holcus lanatus FAC 20 Trifolium repens FAC 15 Taraxacum officinale FACU 10 Agrostis stolonifera FAC 10 Hypochaeris radicata FACU 10 Agrostis stolonifera FAC 5 Plantago major FACU 5 Woodv Vine Stratum -% total cover: � Tree Stratum -% total cover: 0 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 1 of 2 = 50 °/a (50/20 Rule) Vegetation Criterion Met? No SOILS Mapped Unit Name: 58 - Tregarne silt loam Drainage Class: Moderately well-drained Taxonomy: Fine-silty, mixed, mesic Aquultic Hapludalfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-11" 10 YR 3/2 � Loam 11-16" 10 YR 4/1 10 YR 4/4 few, distinct Silt loam ❑ Histosol ❑ Prob. Aquic moisture regime ❑� Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Soil is moist to the surface. Soil Criterion Met? Yes`- Depth of inundation Primary Indicators: ❑ Inundated ❑ Saturated in upper 12" ❑ Water marks ❑ Drift lines ❑ Sediment deposits ❑ Drainage patterns Depth to water table: Secondary Indicators (2 or more required): Depth to saturation: ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Recorded data (aerials, groundwater data) Explain: ❑ Other Explain: Remarks: No positive hydrological indicators Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Date(s): 11/02/99 Investigator(s): JG/DC Project Name: City of Vemonia WetlandCode: VR-04 ProjectNumber: 2995023 Wildlife Fish Habitat Habitat Streams Q1: B Q1: Q2: C Q2: Q3: C Q3: Q4: C Q4: Q5: B Q5: Q6: B Q6: Q7: A Q8: C Q9a: Q9b: C Q1: B Q2: A Q3: A Q4: B Q5a: QSb: C Q6: B Fish Habitat Lakes/Ponds Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: A B B C C B Water Quality Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Control A Q1: A A Q2: A A . Q3: B B Q4: C A Q5: C C Q6: A Q7: A C Q1: C Q2: C Q3: B Q4: B Q5: B Q6: C B C B A C Sensitivity to Impact Q1: Q2: Q3: Q4: Q5: Q6: A B C A A B � OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Funct an Condition Sum Sheet for the Oregon Method WetiandCode: VR-04 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitat The wetland provides One Cowardin wetland class with more than 5 habitat for some wildlife plant species. Emergent veg. or wet meadow. species. Low degree of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland not connected to another - body of water, but water within 1 mile. Wetland not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Residential/Industrial land use within 500 feet of wetland edge. Fish Habitat - Streams N/A Fish Habifat - Lakes/Ponds N/A Water Quality The wetland's water quality SurFace flow (including streams and ditches) function is intact. is wetland's primary source of water. Evidence of flooding or ponding during part of the growing season. High (>60%) degree of wetland vegetation cover. Between 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. Residential/Industrial land use within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic All or part of wetland located within 100-year control function is intact. floodplain or enclosed basin. Evidence of flooding or ponding during the growing season. Area is between 0.5 and 5 acres. Waterflow out of wetland is unrestricted. Emergent veg. or wet meadow is dominant cover type. Residential/Industrial land use within 500 ft of wetland on downstream or down-slope edge of wetland. Urban or Urbanizing land use in watershed upstream from area. Sensifivity to Impact The wetland is potentially Stream flow or bank has been modified by sensitive to future impacts human activities within 1 mile above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not listed as water quality limited in watershed upstream of the or adjacent to the wetland. Residential/industrial (developed) land use within 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Emergent veg. only or wet meadow is the dominant cover. Enhancement Potential The wetland has moderate Wetland has lost one or more functions or potential for enhancement. one or more functions is not present in assessment results for wild{ife habitat, fish . habitat, water quality and hydrologic control. Wetland's primary source of water is surface OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-04 ProjectNumber: 2995023 Function Evaluation Descriptor • Rationale flow, inciuding streams and ditches. Water flow into wetland is not restricted, but if blocked, obstruction can be removed easily. Wetland's area is between 0.5 and 5 acres. Less than 10% of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sensitive to future impacts. Education The wetland has potential Wetland site is open to the public for direct for educational use. access or observation. One to two visible safety hazards exist at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is no existing physical public access to other features, and observation of other features cannot be made. There is not an existing access point within 250 feet of the wetland's edge (if existing-hazardous). Access is not available for limited mobility. Recreation The wetland is not There is not an existing access point within appropriate for or does not 250 feet of the wetland's edge (if existing- provide recreational hazardous}. Wetland not accessible by boat- opportunities. no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Aesthetic Quality The wetland is not pleasing. One Cowardin class is visible from primary viewing area(s). Between 25 and 50% of wetland is visible from viewing area(s). General appearance of wetland has visual detractors which cannot be removed easily. Visual character with surrounding area is landscaped or manipulated by people: Natural, pleasant odors are present at primary viewing location. Continuous tra�c and other intrusive noise and NO natural sounds are audible at primary viewing location. Vernonia Wetlands of Speciaf Interest for Protection Assessment ' Answer Sheet WetlandCode: VR04 Question 1 B List: Question 2 B List: Question 3 B List: Question 4 B List: Question 5 B Question 6 B Question 7 B Lisf: Question 8 B Question 9 B Question 10 B Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia Local Wetland Significance Assessment WetlandCode: VR04 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland MEETS the criteria for identification as a Local Significant Wetland B. ••�N•• Yes Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, No water quality, Yes hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11/2/99 Investigator(s): JGIES Data Sheet Numbers: 10, 11, 12 Location Legal: T4N, R4W, S3 Other: E of Nehalem Hwy. between Knot Street and Grove 8treet Basin: Nehalem River Sails ` Mapped Series: 37 - Natal silty clay loam, 58 - Treharne silt loam, 59 - Udifluvents-Dystrochrepts complex Hydrology ; Hydrologic Source: Precipitation, groundwater, surface flow Wetland Mapping Code: VR-05 a, b, c, d Size (acres): 8.31 Wetland Classification(s): PEM, PSS, PFO Dominant Vegetation : Trees Fraxinus lafifolia Shrubs Spiraea douglasii Fraxinus latifolia Salix sitchensis Vines Herbs Phalaris arundinacea Glyceria grandis Carex exsiccata Rosa pisocarpa Epilobium watsonii Veronica serpyllifolia Dactylis glomerafa Carex obnupta Co,mments:: This was an off-site determination. This wetland has four elements: a high-quality, forested and scrub/shrub wetland behind houses (5a) that drains into an excavated water feature (5b). This drainage joins a drainage from the southeast and flows through finro 18-inch culverts under Heather Lane. Wetland 5c consists of wet meadow/pasture with scattered Fraxinus latifolia. The field is grazed by horses, goats, and geese, and the grasses are kept close-cropped. New homes are on the southern, eastern, and southwestern sides. WetVand 5d is a small, excavated pond that apparently collects groundwater and runoff., and drains into Wetland 5c from the northeast. The ground at the outlet of 5c is saturated with standing water at the lowest point in the southwestern corner. The drainage ditch passes through back yards, eventualfy draining to the Nehalem River. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAP/RO Project Number.• 2995023 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-05a Plot: 11 T 4N R 4W S 3 City: Vernonia County: Columbia State: OR Plot Location; Topography 30 feet W of driveway for flag lot. Terrain is flat. Project #: 2995023 Determined by: 7G/ES Date: 7/27/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:Yes Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No EGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Strafum -% total cover: 30 ShrublSaplin4 Stratum -% total cover: 40 Phalaris arundinacea FACW 60 Spiraea douglasii FACW 75 Glyceria grandis OBL 20 Fraxinus latifolia FACW 20 Carex exsiccata OBL 20 Salix sitchensis FACW 10 Epilobium watsonii FACW Veronica serpyllifolia FAC Dactylis glomerata FACU Carex obnupta OBL Rosa pisocarpa FAC 10 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% totai cover: 30 Fraxinus latifolia FACW 100 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 6 of 6 = 100 %(50/20 Rule) 1/egetatio� Criterion Met? Yes SOILS Mapped Unit Name: 37 - Natal silty clay loam Drainage Class: Poorly drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other Q-3" 10 YR 3/2 Silt 3-8" 10 YR 4/1 7.5 YR 4/6 many, medium, prominent Clayey silt 8-16" 10 YR 5/1 7.5 YR 4/6 many, medium, prominent Silty clay ❑ Histosol ❑ Prob. Aquic moisture regime ❑� Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions � Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Most roots are 0-3 inches. Concretions exist throughout the sample. Soil Criterion Met? Yes HYDROLOG� Depth of inundation 0" Depth to water table: >16" Depth to saturation: 8" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑� Oxidized rhizospheres ❑ Local soil survey data � Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Remarks: Oxidized rhizospheres exist at 0-3 inches below soil surface. Free water on ped faces 8-16" Hydrology Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-05a Plot: 12 T 4N R 4W S 3 City: Vernonia County: Columbia State: OR Plot Location; Topography 50 feet W of flag lot driveway; backyard of residence. Project #: 2995023 Determined by: JG/ES Date: 7/27/99 DETERMINATION: IS THIS PLOT IN A WETLAND?: No Comments: Edge of yard is transitional and the upper part (adjacent to house) is upland. Do Normal Circumstances exist on the site? No Are Soils ❑ Vegetation ❑� Hydrology ❑ significantly disturbed? No Explanarion: Mowed lawn. EGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 50 Shrub/Sanlinp Stratum -% total cover: 30 Festuca sp. Lotus corniculatus Equisetum arvense Hypochaeris radicata Taraxacum o�cinale Polystichum munitum FACU FAC FAC FACU 50 20 15 10 FACU 5 FACU 5 Spiraea douglasii Rhamnus purshiana Pyrus fusca Symphoricarpos albus Ilex aquifolium Oemleria cerasiformis Corylus cornuta FACW 20 FAC- 10 FACW 10 FACU 5 UPL 5 FACU 5 FACU 5 Woodv Vine Stratum -% total cover: 10 Tree Stratum -% total cover: 40 Rubus ursinus FACU 100 Fraxinus latifolia FACW 40 Salix sp. FAC 40 Tsuga heterophylla FACU- 20 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 4 of 8 = Sp %(50/20 Rule) Vegetation Criterion Met? No SOILS Mapped Unit Name: 37 - Natal silty clay loam Drainage Class: Poorly drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other ❑ Histosol ❑ Prob. Aquic moisture regime ❑ Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditians ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Residential back yard. Resident declined to excavate. Lower southern edge adjacent to wetland vegetation probably hydric. Area adjacent to the house is probably disturbed. Soil Criterion Met? Yes �HYDROLOGY Depth of inundation 0" Depth to water table: >11" Depth to saturation: unk. Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Saturated in upper 12" ❑ Water marks ❑ Drift lines ❑ Sediment deposits ❑ Drainage patterns ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leaves ❑ FAC-Neutra� test ❑ Recorded data (aerials, groundwater data) Explain: ❑ Other Explain: Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-OSb Piot: 10 T 4N R 4W S_� City: Vernonia County: Columbia State: OR Plot Location; Topography S side of Heather Lane, gently sloping to drainage channel. Project #: 2995023 Determined by: JG/ES Date: 7/22/99 DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? Yes Are Soiis ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 50 Shrub/Saplin4 Stratum -% total cover: _5 Phalaris arundinacea FACW 20 Symphoricarpos albus FACU 100 Agrostis stolonifera FAC 20 Geum macrophyllum FACW 10 Holcus lanatus FAC 5 Equisetum arvense FAC 5 Woodv Vine Stratum -% total cover: 20 Tree Stratum -% total cover: RO Rubus laciniatus FACU 40 Alnus rztbra FAC 80 Rubus ursinus FACU 30 Thuja plicata FAC 15 Rubus discolor FACU 30 Fraxinus latifolia FACW 5 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 3 of �_ _�% (50/20 Rule) Remarks: Vegetation is spotty (with at least 50% bare ground) within 20 feet of stream channel. Vegetation. Criterion Met? No SOILS'' Mapped Unit Name: 37 - Natal silty clay loam Drainage Class: Poorlv drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIELD SOIL CHARACTERISTICS: � Horizan Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-8" 10 YR 3/3 10 YR 3/6 few, medium, distinct Loam 8-16" 10 YR 3/2 Loam ❑ Histosol ❑ Prob. Aquic moisture regime ❑�/ Redox features ❑ Organic streaking ❑ Histic epipedon .❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed � Highly organic surface layer ❑ On hydric soils list Remarks: Soil is slightly moist 6-8" (transition zone). � Soil Criterion Met? : Na Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres O Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Remarks: Soil is slightly moist. No other positive hydrological indicators. � Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Date(s): 11/02/99 Investigator(s): JG/DC Project Name: City of Vernonia � WetlandCode: VR-05 ProjectNumber: 2995023 Wiidlife Habitat Q1: A Q2: C Q3; C Q4; C Q5: B Q6: B Q7; A Q8: C Q9a: Q9b: A Fish Habitat S Q1: Q2: Q3: Q4: Q5: Q6: Q1: B Q2: B Q3: A Q4: B Q5a: Q5b: A Q6: B Fish Habitat Lakes/Ponds Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: A A B A B A Water Quality Q1 Q2 Q3 Q4 Q5 Q6 Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Control C B B B A C Q1: Q2: Q3: Q4: Q5: Q6: Q7: A B B C C A C B Q1: C Q2: C Q3: B Q4: B Q5: B Q6: B B C B A A Sensitivity to , Impact Q1: A Q2: B Q3: C Q4: A Q5: A Q6: B OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-05 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitaf The wetland provides Two or more Cowardin wetland classes. habitat for some wildlife Emergent veg. or wet meadow. Low degree species. of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland not connected to another body of water, but water within 1 mile. Wetland not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Residential/lndustrial land use within 500 feet of wetland edge. More than 40% of wetland edge bordered by veg. buffer 25 or more feet wide. Fish Habitaf - Streams N/A Fish Habitat - Lakes/Ponds N/A Water Quality The wetland's water quality Groundwater (including seeps and springs) is function is impacted or wetland's primary source of water. Unable to degraded. determine evidence of flooding or ponding during the growing season (or unapplicable). Moderate (approx. 60°/a) degree of wetland vegetation cover. Between 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. Residential/Industrial land use within 500 feet of wetland edge. Upstream not Iisted as water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic All or part of wetland located within 100-year control function is impacted floodplain or enclosed basin. Unable to or degraded. determine evidence of flooding or ponding during the growing season (or not applicable). Area is beiween 0.5 and 5 acres. Waterflow out of wetland is unrestricted. Emergent veg. or wet meadow is dominant cover type. Residential/Industrial land use within 500 ft of wetland on downstream or down-slope edge of wetland. Forested or natural area land use upstream. Sensitivity to lmpact The wetland is potentially Stream flow or bank has been modified by sensitive to future impacts human activities within 1 mile above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not listed as water quality limited in watershed upstream of the or adjacent to the wetland. Residential/industrial (developed) land use within 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Emergent veg. only or wet meadow is the dominant cover. Enhancement Pofenfia! The wetland has moderate Wetland has lost one or more functions or potential for enhancement. one or more functions is not present in assessment results for wildlife habitat, fish OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-05 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale habitat, water quafity and hydrofogic control. Wetland's primary source of water is groundwater, including springs and seeps. Water flow into wetland is not restricted, but if blocked, obstruction can be removed easily. Wetland's area is between 0.5 and 5 acres. More than 40% of wetland's edge is bordered by a vegetative buffer 25 or more feet wida Wetland is potentially sensitive to future impacts. Education The wetland has Wetland site is open to the public for direct educational uses. access or observation. There are no visible hazards to the public at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is existing physical public access to other features or it can be created easily and other habitats can be observed from this site. There is an unmaintained access point within 250 feet of the wetland's edge. Access is available for limited mobility. Recreation The wetland has the There is an unmaintained public access point potential to provide within 250 feet of the wetland's edge. Wetland recreational opportunities. not accessible by boat-no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Aesthetic Quality The wetland is considered Two Cowardin classes are visible from to be moderatefy pleasing. primary viewing area(s). Between 25 and 50% of wetland is visible from viewing area(s). General appearance of wetland has visual detractors which cannot be removed easily. Visual character with surrounding area is landscaped or manipulated by people. Natural, pleasant odors are present at primary viewing location. Some traffic and other similar sounds and natural sounds are audible at primary viewing locations. Vernonia Wetlands of Special Interest for Protection Assessment Answer Sheet WetfandCode: VR05 Question 1 B List: Question 2 B List: Question 3 B List: Question 4 B List: Question 5 B Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B � Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia Local Wetland Significance Assessment WetlandCode: VR05 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland does NOT meet the criteria for identification as a Local Significant Wetland B. �•�N�� No Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, No water quality, No hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is Iocated adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Fietd Verification: 7/21/99 Wetland Mapping Code: VR-06 Investigator(s): JG Size (acres): 1.1 Data Sheet Numbers: n/a Location Legal: T4N, R4W, S3&4 Other: N end of mobil home park, approximately 100 yards W of Nehalem River Basin: Nehalem River Soils Mapped Series: 32 - McNulty silt loam Hydrology - Hydrotogic Source: Groundwater, surface flow Wetland Ctassification(s): POW, PFO Dominant Vegetation Trees Shrubs Yines Herbs Fraxinus latifolia Comments: , This is an excavated pond with three islands. The banks are steep to vertical. The pond has deep water and little to no emergent wetland vegetation on the banks. Fraxinus latifolia grows on the islands and around the edge. There are two planted pine cuftivars on the southern island. The pond may receive surface water from intermittent drainages. It overflows through a culvert to the Nehalem River. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) � PEM = palustrine emergent POW = palus#rine open water RUB = riverine unconsolidated bottom � SHAPIRO Project Number. 2995023 OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Date(s): 11/02/99 Investigator(s): JGlDC Project Name: City of Vemonia WetlandCode: VR-06 ProjectNumber: 2995023 Wildlife Habitat Q1: Q2: Q3: Q4: Q5: Q6: Q7: Q8: Q9a: Q9b: Fish Habitat Streams A Q1: B Q2: C Q3: C Q4: B Q5: B Q6: A C Fish Habitat Lakes/Por►ds Q1: Q2: Q3: Q4: Q5: Q6: Water Quality Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Sensitivity to Control tmpact C Q1: B Q1: A A Q2: A Q2: B B Q3: B Q3: C B Q4: A Q4: A A Q5: B Q5: A C Q6: A Q6: C Q7: A A Enhancement fducation Potential Q1: B Q1: C Q2: B Q2: B Q3: Q3: B Q4: B Q4: B Q5a: Q5: C QSb: A Q6: A Q6: B Recreation _ Aesthetic Quality Q1: C Q1: B Q2: C Q2: A Q3: C Q3: B Q4: B Q4: B Q5: B Q5: A Q6: B Q6: A OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-06 ProjectN umber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitat Fish Habitat - Streams Fish Habitat - Lakes/Ponds Water Quality The wetiand provides habitat for some wildlife species. N/A N/A The wetland's water quality function is impacted or degraded. Two or more Cowardin wetland classes. Emergent veg. & ponding or open water only. Low degree of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland not connected to another body of water, but water within 1 mile. Wetland not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Residential/Industrial land use virithin 500 feet of wetland edge. More than 40% of wetland edge bordered by veg. buffer 25 or more feet wide. Groundwater (including seeps and springs) is wetland's primary source of water. Evidence of flooding or ponding during part of the growing season. Moderate (approx. 60%) degree of wetland vegetation cover. Between 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. Residential/Industrial land use within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic No part of wetland located within 100-year control function is intact. floodplain or enclosed basin. Evidence of . flooding or ponding during the growing season. Area is between 0.5 and 5 acres. . Waterflow out of wetland is restricted or no outlet. Emergent veg. and ponding , or open water only is dominant cover type. Residential/Industrial land use within 500 ft of wetland on downstream or down-slope edge of wetland. Urban or Urbanizing land use in watershed upstream from area. Sensitivity to Impact The wetland is potentially Stream flow or bank has been modified by sensitive to future impacts human activities within 1 mile above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not listed as water quality limited in watershed upstream of the or adjacent to the wetland. Residential/industrial (developed) land use within 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Emergent veg. and ponding,or open water only are the dominant cover types. Enhancement Potential The wetland has moderate Wetland has lost one or more functions or potential for enhancement. one or more functions is not present in OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-06 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale assessment results for wildlife habitat, fish habitat, water quality and hydrologic control. Wetland's primary source of water is groundwater, including springs and seeps. Wetland's area is befinreen 0.5 and 5 acres. More than 40% of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sensitive to future impacts. Education The wetland site is not Wetland site is not open to the public for appropriate for educational direct access or observation. One to two use. visible safety hazards exist at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is no existing physical public access to other features, but observation of other features can be made. There is not an existing access point within 250 feet of the wetland's edge (if existing-hazardous). Access is available for limited mobility. Recreation The wetland is not There is not an existing access point within appropriate for or does not 250 feet of the wetland's edge (if existing- provide recreational hazardous). Wetland not accessible by boat- opportunities. no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allawed at the wetland. � Aesthetic Quality The wetland is considered Two Cowardin classes are visible from to be pleasing. primary viewing area(s). More than 50% of wetland is visible from viewing area(s). General appearance of wetland has visual detractors, which can be removed easily. Visual character with surrounding area is landscaped or manipulated by people. Natural, pleasant odors are present at primary viewing location. Some traffic and other simi{ar sounds and natura{ sounds are audible at primary viewing locations. Vernonia Wetlands of Special Interest for Protection Assessment Answer Sheet WetlandCode: VR06 Question 1 B List: Question 2 B List: Question 3 B List: Question 4 B List: Question 5 B Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia Local Wetland Significance Assessment Wet VR06 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland MEETS the criteria for identification as a Local Significant Wetland L�i� Yes Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, No water quality, Yes hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICAT{ON AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11/2/99 Ir�vestigator(s): JG/ES/DC - Data Sheet Numbers: 13, 14, 15, 16, 17, 18 Location Legal: T5N, R4W, S34 Other: N of E end of Knott Street Basin: Nehalem River Soils Mapped Series: 37 - Natal silty clay loam Hydrology Hydrologic Source: Groundwater Wetland Mapping Code: VR-07 Size (acres): 12.3 Wetland Classification(s): Dominant 1/egetafion ' Trees Fraxinus latifolia Salix sp. Shrubs Crataegus douglasii Cornus stolonifera Physocarpus capitatus Rosa pisocarpa Symphoricarpos albus Vines Herbs Alopecurus pratensis � Juncus effusus Festuca arundinacea Lupinus polyphyllus Agrostis alba Carex obnupta Ranunculus repens Geum macrophyllum Carex deweyana Sfachys cooleyae Comments� This was an on-site assessment. Wetland 7 includes mowed grass agricultural fields, short fence rows, and forested wetlands. The transition zone from upland to wetland in the fields is broad and gradual, with an indistinct boundary. Soil conditions indicate that wetland hydrology may extend beyond the current boundary. The PFO part of the site has good structural and species diversity, with canopy, understory, and ground cover all present. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAPlRO Project Number.• 2995023 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-Q7 Plot: 13 T SN R 4W S 34 City: Vernonia County: Columbia State: OR Plot Location; Topography 300 feet N of E end of Knott Street slight slope (3%) to North. Project #: 2995023 Determined by: JG/ES Date: 7/27/99 DETERMINATION: IS THtS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? No Are Soils ❑ Vegetation ❑� Hydrology ❑ significantly disturbed? No Explanation: Agricultural field. VEGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -°/a total cover: 100 Shrub/Saplinct Stratum -% total cover: 0 Festuca arundinacea FAC- 70 Alopecurus pratensis FACW 20 Agrostis alba FAC 5 Lotus corniculatus FAC 5 Lupinus polyphyllus FAC+ 0 Wood Vine Stratum -% total cover: 0 Tree Stratum -% total cover: 0 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 1 of 2 = 50 %(50/20 Rule) Vegetation Criterion Met? No SOILS Mapped Unit Name: 59 - Udifluvents-Dysirochrepts complex Drainage Class: Varies Taxonomy: Udifluvents and Dvstrochrepts FIEID SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-6" 10 YR 3/2 6-12" 10 YR 3/1 12-16" 10 YR 4/2 Silt loam 7.5 YR 3/4 few, fine, faint Silt loam 7.5 YR 3/4 common, medium, distinct Silty clay loam ❑ Histosol ❑ Prob. Aquic moisture regime � Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Concretions below 6 inches Soil CriteEion Met? Yes HYDROLOGY- Depth of inundation 0" _ Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary indicators (2 or more required): ❑ Inundated � Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Remarks: Soil slightly moist at 4-16". Very hummocky surface. Disrinct, matted, stained, dead grass and leaves at 3-6 inches level between hummocks. Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WE7LAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-07 Pbt: 14 T SN R 4W S 34 City: Vernonia County: Columbia State: OR Plot Location; Topography 1000 feet N of E end of Knott Street, slightly sloping to W. Proje #: 2995023 Determined by: JG/E Date: 7/27/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:Yes Do Normal Circumstances exist on the site? No Are Soils❑ Vegetation � Hydrology ❑ significantly disturbed? No Explanation: Agricultural field - grasses. VEGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 100 Shrub/Saplinq Stratum -% total cover: 0 Alopecurus pratensis FACW 40 Juncus effusus . FACW 20 Festuca arundinacea FAG 20 Lupinus polyphyllus FAC+ 10 Agrostis alba FAC 5 Holcus lanatus FAC 5 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: 0 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- �_ of �_�% (50/20 Rule) Remarks: Juncus and Lupinus isolated in approximately 50' x 100' drifts. 1/ege#ation Griterion Met? ' Yes SOILS: Mapped Unit Name: 37 - Natal silty clay loam Drainage Class: Poorly drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-6" 10 YR 4/2 7.5 YR 4/6 common, fine, distinct Silt loam 6-16" 10 YR 5/2 7.5 YR 4/6 common, medium, distinct Silty clay loam ❑ Histosol ❑ Prob. Aquic moisture regime � Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed � Highly organic surface layer ❑ On hydric soils list Soil=Criterion Met? ' Yes Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated � Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑� Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Remarks: Oxidized rhizospheres exist near the surface. Matted, stained dead grass cover surface in low spots between hummocks. Soil is slightly moist in top 6 inches and more moist below 6 inches. Hydrology Griterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET - 1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-07 Plot: 15 T SN R 4W S 34 City: Vernonia County: Columbia State: OR Plot Location; Topography Approximately 1600 feet N of Knott Street, very slightly sloped. Project #: 2995023 Determined by: JG/ES Date: 7/27/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:Yes Do Normal Circumstances exist on the site? Yes Are Soils❑ Vegetation � Hydrology 0 significantlydisturbed? No VEGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 70 ShrublSanlin4 Stratum -% total cover: 50 Ranunculus repens FACW 20 Crataegus douglasii FAC 25 Geum macrophyllum FACW 20 Cornus stolonifera FACW 20 Carex obnupta OBL 20 Physocarpus capitatus FACW 20 Carex deweyana FACU 20 Symphoricarpos albus FACU 20 Stachys cooleyae FACW 15 Rosa pisocarpa FAC 10 Viola glabella FACW 5 Fraxinus latifolia FACW 5 Yeronica americana OBL 5 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: 90 Fraxinus latifolia FACW 100 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 6 of 9 = 67 %(50/20 Rule) = Vegetation Criterion Met? ` Yes SOILS Mapped Unit Name: 37 - Natal silty clay loam Drainage Class: Poorly drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-3" 10 YR 4/1 10 YR 3/4 common, coarse, distinct Silt loam 3-12" 10 YR 4/1 10 YR 3/3 common, coarse, distirict Clayey silt loam 12-16" 10 YR 5/1 10 YR 4/6 common, coarse, distinct Silt ❑ Histosol ❑ Prob. Aquic moisture regime � Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Soil increasingly moist with depth. Soil Criterion Met? Yes HYDROLOGY-- Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift fines Explain: ❑ Sediment deposits ❑ Other � Drainage patterns Explain: Remarks: Drainage patterns are clearly visible across the surface of the ground. Hydrology Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 .(503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-07 P{ot: 16 T SN R 4W S 34 City: Vernonia County: Columbia State: OR Plot Location; Topography Sloping terrace approximately 150 feet wide, about 30 feet above adjacent area. P roje ct #: 2995023 Determined by: JG/ES Date: 7/27/99 DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? Yes Are Soiis ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No EGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 70 Shrub/Saqlinq Stratum -% total cover: 2Q Agrostis tenuis FAC 25 Corylus cornuta FACU 85 Agrostis alba FAC 15 Rhamnus purshiana FAC- 15 Holcus lanatus FAC 15 Pteridium aquilinum FACU 15 Dactylis glomerata FACU 10 Galium aparine FACU 5 Vicia sp. UPL 5 Woodv Vine Stratum -% total cover: 6� Tree Stratum -°1a totat cover: 0 Rubus laciniatus FACU 70 Rubus ursinus FACU 30 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 1 of 4=�% (50/20 Rule) Vegetation:Criterion Met? No SOILS Mapped Unit Name: 37 - Natal silty clay loam � Drainage Class: Poorly drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-3" 7.5 YR 3/3 Fine sandy loam 3-16" 10 YR 4/4 2.5 YR 4/6 few, fine ❑ Histosol ❑ Prob. Aquic moisture regime � Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions - ❑ Organic pan ❑ Sulfidic odor � Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Marbled matrix with color variation (7.5 YR 5/6) but not mottling. Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAGNeutral test 0 Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Hydrology Criterion Met? `No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-07 Plot: . 17 T�N R 4W S 34 City: Vernonia County: Columbia State: OR Plot Location; Topography In NE corner of flatlands 100 feet S of toe of slope, 300 feet W of sandy area. Project #: 2995023 Determined by: JG/ES Date: 7/27/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:yes Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation � Hydrology ❑ significantly disturbed? No VEGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 25 Shrub/Saplinq Stratum -% total cover: 75 Lupinus polyphyllus FAC+ 50 Rosa pisocarpa FAC 95 Ranuncudus repens Carex obnupta AQrostis alba Holcus lanatus Juncus effusus FACW 20 Fraxinus latifolia FACW 5 OBL 20 FAC 10 FAC 10 FACW 10 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% fotal cover: 20 Fraxinus latifolia FACW 90 Salix sp. FAC 5 Crataegus douglasii FAC 5 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 5 of 5 = 100 %(50/20 Rule) Vegetation Criterion Met? Yes SOILS Mapped Unit Name: 37 - Natal silty clay loam Drainage Class: Poorly drained Taxonomy: Fine, mixed, mesic Umbric Ochraqualfs FIE�D SO1L CHARACTERISTICS: Horizon Depth Matrix Color Redox A6undance, Size, Color Texture, Structure, Other 0-6" 10 YR 3/2 Remnant oxidized rhizospheres Silt loam 6-10" Transitional Silty clay loam 10-16" 10 YR 4/2 7.5 YR 4/6 common, medium, distinct ❑ Histosol ❑ Prob. Aquic moisture regime 0 Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer � On hydric soils list Soil Criterion Met? Yes HYDROLOG-Y` - Depth of inundation Depth to water table: Depth to saturation: Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Saturated in upper 12" ❑ Water marks ❑ Drift lines ❑ Sedimenf deposits ❑ Drainage patterns 0 Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Recorded data (aerials, groundwater data) Explain: ❑ Other Explain: Remarks: Oxidized rhizospheres in top 6 inches on live roots. Hydrology Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vemonia Site: VR-07 Plot: l8 T� R 4W S 34 City: Vernonia County: Columbia State: OR Plot Location; Topography Knott Street, 150 feet S of study area boundary, flat. Project #: 2995023 Determined by: JG/ES Dat �27/99 DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? No Are Soils ❑ Vegetation ❑� Hydrology ❑ significantly disturbed? No Explanation: Ag ricultural field grass VEGETATIOIV Dominant Piant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: ] 00 Shrub/Saplinq Stratum -% total cover: 0 Festuca arundinacea FAC- 80 Agrostis alba FAC 10 Lupinus polyphyllus FAC+ 5 Vicia americana FAC 5 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: 0 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- �_ of 1 = 0%(50/2o Rule) Vegetation Criterion Met? No S�ILS Mapped Unit Name: 59 - Unifluvents-Dystrochrepts complex Drainage Class: Varies Taxonomy: Udifluvents and Dystrochrepts FIELD S01L CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-i2" 10 YR 3/1 Silt loam 12-16" 10 YR 3/1 10 YR 3/6 few, fine, faint Silt loam ❑ Histosol ❑ Prob. Aquic moisture regime ❑� Redox features ❑ Organic streaking ❑ Histic epipedon � Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Expfain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Remarks: Concretions exist below 12 inches. Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Date(s): 11/02/99 Investigator(s): DC/JG Project Name: City of Vernonia WetlandCode: VR-07 ProjectNumber: 2995023 Wildlife > Habitat Q1: Q2: Q3: Q4: Q5: Q6: Q7: Q8: Q9a: Q9b: A A A C B B A B � Fish Habitat Streams Q1: Q2: Q3: Q4: Q5: Q6: Q1: N/A Q2: N/A Q3: N/A Q4: N/A Q5a: N/A QSb: N/A Q6: N/A Fish Habitat Water Lakes/Ponds Quality Q1: Q1: Q2: Q2: Q3: Q3: Q4: Q4: Q5: Q5: Q6: Q6: Q1: Q2: Q3: Q4: Q5: Q6: C A A B C B Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Sensitivity to Controt impact C C A A B C A C A C A B C Q1: Q2: Q3: Q4: Q5: Q6: A B C B A A Q1: Q2: Q3: Q4: Q5: Q6: Q7: C Q1: C Q2: C Q3: A Q4: B Q5: B Q6: A A A A A A OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-07 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitat The wetland provides Two or more Cowardin wetland classes. diverse wildlife habitat. Woody vegetation is dominant vegetation cover. High degree of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland not connected to another body of water, but water within 1 mile. Wetland not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Agricultural land use within 500 feet of wetland edge. More than 40% of wetland edge bordered by veg. buffer 25 or more feet wide. Fish Habitat - Streams N/A Fish Habitat - Lakes/Ponds N/A Water Quality The wetland's water quality Groundwater (including seeps and springs) is function is impacted or wetland's primary source of water. No degraded. evidence of flooding or ponding during the growing season. High (>60%) degree of wetland vegetation cover. More than 5 acres of wetland area. Agricultural land use within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic All or part of wetland located within 100-year control function is impacted floodplain or enclosed basin. No evidence of or degraded. flooding or ponding during the growing season. Area is more than 5 acres. Waterflow out of wetland is unrestricted. Woody vegetation is dominant cover type. Agricultural land use within 500 ft of wetland on downstream or down-slope edge of wetland. Forested or natural area land use upstream. Sensitivity to Impact The wetland is potentially Stream flow or bank has been modified by sensitive to future impacts human activities within 1 mile above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not listed as . water quality limited in watershed upstream of the or adjacent to the wetland. Agricultural land use within 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Woody vegetation is the dominant cover. Enhancement Potential N/A Education The wetland site is not Wetland site is not open to the public for appropriate for educational direct access or observation. There are no use. visible hazards to the public at the wetland site. Results of wildlife habitat and fish habitat assessment criteria prove wetland provides diverse Wildlife Habitat, or Fish Habitat OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-07 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale function is intact. There is no existing physical public access to other features, but observation of other features can be made. There is not an existing access point within 250 feet of the wetland's edge (if existing- hazardous). Access is not available for limited mobility. Recreation The wetland is not There is not an existing access point within appropriate for or does not 250 feet of the wetfand's edge (if existing- provide recreational hazardous). Wetland noC accessible by boat- opportunities. no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides diverse wildlife habitat. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Aesthetic Quality The wetland is considered More than two Cowardin classes are visible to be pleasing. from primary viewing area(s). More than 50% of wetland is visible from viewing area(s). General appearance of wetland has no visual detractors. Visual character with surrounding area is open or naturally landscaped. Natural, pleasant odors are present at primary viewing location. Some traffic and other similar sounds and natural sounds are audible at primary viewing locations. Vernonia Wetlands of Special interest for Protection Assessment � Answer Sheet WetlandCode: VR07 Question 1 B List: Question 2 B List: Question 3 B List: Question 4 B Lisf: Question 5 B Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia Local Wetland Significance Assessment WetlandCode: VR07 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activiiy; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland does NOT meet the criteria for identification as a Locaf Significant Wetiand B. •��N�� No Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, No water quality, No hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local governrnent): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educationaf purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11/2/99 Investigator(s): JG, ES Data Sheet Numbers: 19, 20, 21 Wetland Mapping Code: VR-08 Size (acres): 1.08 Location Legal: T4N, R4W, S4 Other: N of Idaho Ave. and Oklahoma Ave.; inside ballpark Basin: Nehalem River Soil�� Mapped Series: 26C - Kenusky silty clay loam Hydrology ' ' Hydrologic Source: Groundwater Wetland Classification(s): PEM, some PFO Dominant Vegetation Trees Fraxinus latifolia Shrubs Symphoricarpos albus Physocarpus capitatus Rosa pisocarpa Fraxinus latifolia Cornus stolonifera Vines Herbs Juncus effusus Juncus bufonius Carex obnupta Typha latifolia Galium aparine Epilobium watsonii Gnaphalium palustre Comments: This site is a city ball field. The western end was recently excavated 10 to 15 feet below grade to make more of the field flat. The City Planner said the field had a ditch along the western side to keep water off the field, before excavation. In excavating the field, groundwater was encountered. The flatness of the terrain and the clay soils cause water to pond, and a wetland is forming in the area. The eastern end of the wetland is in the ash trees outside the ball field. An old, excavated ditch runs along the northern edge of the field and drains into the forested wetland portion. The forested portion is quite small and contains Symphoricarpos albus and Carex obnupta in addition to the ash trees. Juncus bufonius is the dominant wetland plant on the site. Holcus lanatus, Equisetum arvense, Agrostis alba, Gnaphalium palustre, and a small amount of Typha latifolia are also present. Juncus effusus has become established in the larger wet spots (10 feet by 10 feet) that are ponded in the western end. The western and northern quarters of the site have much bare soil and a cracked and caked surface, indicating that ponding occurs. The field to the north has a small amount of Juncus effusus in the middle and dark 5oil, indicating wet conditions may extend to the north. Access to that site was not granted. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAPIRO Project Number.• 2995023 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: itv of Vernonia Site: VR-0$ Plot: 19 T 4N R 4W S 4 City: Vernonia County: Columbia State: QR Plot Location; Topography W edge of excavated field area, top of excavated bank, moderate slope. Project #: Determined by: Date: DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? Yes Are Soiis ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No EGETATION Dominant Plant Species Ind. °/aCover: Herb Stratum -°to total cover: 15 Polystichum munitum FACL7 90 Sambucus cerulea FACU 10 Corylus cornuta FACU Hypericum perforatum UPL Vancouveria hexandra UPL Woodv Vine Stratum -% total cover: l0 Rubus ursinus FACU 100 lnd. %Cover: Shrubl5aqlinp Stratum -% totai caver: 60 Gaultheria shallon FACU 60 Acer circinatum FAC- 20 10 10 Rosa pisocarpa FAC Alnus rubra FAC Vaccinium parvifolium UPL 5 Corylus cornuta FACU 5 Tree Stra#um -% total cover: 75 Pseudotsuga menziesii FACU 80 Alnus rubra FAC 20 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 1 of _(� _�% (50/20 Rule) Vegetation _Criterion Met? No SOILS Mapped Unit Name: 26C - Kenusky silty clay loam 0-15% slopes Drainage Class: Poorly drained Taxonomy: Clayey, mixed, mesic Tvpic Umbraquults FIELD SOIL CHARACTERISTICS: Harizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-3" 10 YR 3/3 Loam 3-16" 10 YR 4/4 Loam ❑ Histosol � Prob. Aquic moisture regime ❑ Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Hydrotogy Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): WETLAND DETERMINATION DATA SHEET - 1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-08 Plot: 2p T 4N R 4W S 4 City: Vernonia County: Columbia State: OR Plot Location; Topography Mid parcel area, N side, flat - 2% grade sloping to the E Project #: 2995023 Determined by: JG/ES Date: 8/4/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:Yes Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATION Dominant Plant Species 1nd. %Cover: Ind. %Cover: Herb Stratum -% total cover: RQ Shrub/Saplinq Stratum -% total cover: 0 Juncus bufonius FACW 50 Deschampsia cespitosa FACW 15 Agrostis alba FAC 15 Holcus lanatus FAC 10 Hypochaeris radicata FACU 5 Trifolium repens FAC 5 Gnaphalium palustre FAC+ 5 Woodv Vine Stratum -% total cover: 0 Tree Stratum -°/a total cover: 0 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 1 of 1 = 100 %(50/20 Rule) Remarks: 20% bare ground, 80% vegetation cover. Vegetation Criterion Met? Yes SOILS Mapped Unit Name: 26C - Kenusky silty clay loam 0-15% slopes Drainage Class: Poorly drained Taxonomy: Clayey, mu�ed, mesic Tvpic Umbraquults FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-12" 10 YR 3/2 Mixed matrix - 10 R 4/3, Mottles 10 YR 5/8 Silty clay loam common, fine, prominent 12-16" 2.5 Y 3/1 Silty clay loam ❑ Histosol ❑ Prob. Aquic moisture regime � Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surtace layer ❑ On hydric soils list Soil Criterion Met? Yes HYDROLOGY Depth of inundation _ Primary Indicators: ❑ Inundated ❑ Saturated in upper 12" ❑ Water marks ❑ Drift lines ❑ Sediment deposits � Drainage pafterns Depth to water tabfe: Secondary Indicators (2 or more required): ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Recorded data (aerials, groundwater data) Explain: ❑ Other Expiain: Depth to saturation: Remarks: Site has been scraped and or plowed in the past 1 to 2 years. There are obvious areas of recent ponding (bare, cracked ground). Hydrology Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-08 Pi 21 T 4N R 4W S 4 City: Vernonia County: Columbia State: OR Plot Location; Topography NE comer of City property, in level, undisturbed area. Project #: 2995023 Determin by: JG(ES Date: $/4/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:yes Do Normal Circumstances exist on the site? Yes Are Soils❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATION � Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 70 Shrub/Saolinq Stratum -% total cover: 40 Carex obnupta OBL 50 Symphoricarpos albus FACU 30 Holcus lanatus FAC 20 Physocarpus caprtatus FACW 20 Galium aparine FACU 20 Rosa pisocarpa FAC 20 Epilobium watsonii FACW 5 Fraxinus latifolia FACW 20 Ranunculus repens FACW 5 Cornus stolonifera FACW 10 Woodv Vine Stratum -% total cover: 100 Tree Stratum -% total cover: 70 Rubus ursinus FACU 100 Fraxinus latifolia FACW 90 Pseudotsuga menziesii FACU 10 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 6 of _2 =�% (50/20 Rule) Vegetation Criterion Met? Yes' SOILS Mapped Unit Name: 26C - Kenusky silty clay loam 0-15% slopes Drainage Class: Poorly drained Taxonomy: Clayey, mixed, mesic Typic Umbraquults FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-4" 10 YR 3/1 Silty clay loam 4-16" 10 YR 3/1 10 YR 3/6 few, fine, faint Silty clay loam ❑ Histosol ❑ Prob. Aquic moisture regime ❑� Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Soil �Criterion Met? ' Yes! Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated � Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑� Sediment deposits ❑ Other ❑� Drainage patterns Explain: � Remarks: Soil surface is cracked and caked. Sediment exists on leaves and sticks on the soil surface. Hydrology Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Date(s): 11/02/99 _ Investigator(s): JG/DC Project Name: City of Vernonia WetiandCode: VR-08 ProjectNumber: 2995023 Wildlife Habitat Q1: Q2: Q3: Q4: Q5: Q6: Q7: Q8: Q9a: Q9b: Fish Habitat Streams B Q1: C Q2: . C Q3: C Q4: B Q5: B Q6: A C C Q1: B Q2: B Q3: Q4: B Q5a: Q5b: C Q6: B Fish Habitat Lakes/Ponds Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: A A B A A B Water Quality Q1: C Q2: A Q3: C Q4: B Q5: A Q6: C Q1: Q2: Q3: Q4: Q5: Q6: Hydrofogic Control Q1: B Q2: A Q3: B Q4: C Q5: C Q6: A Q7: A A Q1: C Q2: C Q3: B Q4: B Q5: B Q6: C A B B A A Sensitivity to Impact Q1: A Q2: B Q3: C Q4: A Q5: A Q6: B OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-08 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitat The wetland provides One Cowardin wetland class with more than 5 habitat for some wildlife plant species. Emergent veg. or wet meadow. species. Low degree of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland not connected to another body of water, but water within 1 mile. Wetland not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Residential/Industrial land use within 500 feet of wetland edge. Fish Habifat - Streams N/A Fish Habitat - Lakes/Ponds N/A Water Quality The wetland's water quality Groundwater (including seeps and springs) is function is impacted or wetland's p�imary source of water. Evidence degraded. of flooding or ponding during part of the growing season. Low (<60%) degree of wetland vegetation cover. Between 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. Residential/Industrial land use within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic No part of wetland located within 100-year control function is impacted floodplain or enclosed basin. Evidence of or degraded. flooding or ponding during the growing season. Area is between 0.5 and 5 acres. Waterflow out of wetland is unrestricted. Emergent veg. or wet meadow is dominant cover type. Residential/Industrial land use within 500 ft of wetland on downstream or down-slope edge of wetland. Urban or Urbanizing land use in watershed upstream from area. Sensitivify to Impact The wetland is potentially sensitive to future impacts Stream flow or bank has been modified by human activities�within 1 mile above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not listed as water quality limited in watershed upstream of the or adjacent to the wetland. Residential/industrial (developed) land use within 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Emergent ueg. only or wet meadow is the dominant cover. Enhancement Potential The wetland has moderate Wetland has lost one or more functions or potentiaf for enhancement. one or more functions is not present in assessment results for wildlife habitat, fish habitat, water quality and hydrologic control. Weiland's primary source of water is OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-08 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale groundwater, including springs and seeps. Wetland's area is between 0.5 and 5 acres. Less than 10% of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sensitive to future impacts. Education The wetland has Wetland site is open to the public for direct. educational uses. access or observation. There are no visible hazards to the public at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is existing physical public access to other features or it can be created easily and other habitats can be observed from this site. There is a maintained public access poin# within 250 feet of the wetland's edge. Access is not available for limited mobility. Recreation The wetland has the There is a maintained public access point potential to provide within 250 feet of wetland's edge. Wetland not recreational opportunities. accessible by boat-no boat launch within 1 mile/ cannot develop. No existing t�ails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Aesthetic Quality The wetland is considered One Cowardin class is visible from primary to be moderately pleasing. viewing area(s). More than 50% of wetland is visible from viewing area(s). General appearance of wetland has visuat detractors, which can be removed easily. Visual character with surrounding area is landscaped or manipulated by people. Natural, pleasant odors are present at primary viewing location. Some traffic and other similar sounds and natural sounds are audible at primary viewing locations. Vernonia Wetlands of Special Interest for Protection Assessment Answer Sheet WetlandCode: VR08 Question 1 B List.' Question 2 B List: Question 3 B List: Question 4 B List: Question 5 B Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia Local Wetland Significance Assessment WetlandCode: VR08 A. "OUT" Test No Wetlands artificialiy CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surtace mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This we do es N mee the criteria f identification as a Local Sig Wetlan B. "IN° No Wetlands that score the highest rank for ANY of the four ecological functio,ns addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, No water quality, No hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consuftation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11/2/99 Wetland Mapping Code: VR-09 Investigator(s): JG/DC Size (acres): 37.7 Data Sheet Numbers: 22, 23, 24, 25 Location Legal: T4N, R4W, S3 Other: Vernonia Lake; former mill pond Basin: Nehalem River Soils Mapped Series: 26C - Kenusky silty clay loam 0-15% slopes Hydrology Hydrologic Source: Artificial surface flow Wetland Classification(s): Lacustrine, PEM, PSS Dominant Vegetation Trees Fraxinus lafifolia Alnus rubra Shrubs Fraxinus latifolia Salix lasiandra Salix sitchensis Rubus spectabilis Vines Herbs Phalaris arundinacea Tolmiea menziesii Equisetum arvense Scirpus microcarpus Nuphar luteum Elodea canadensis Juncus effusus Typha latifolia Wetland 9 is Vernonia Lake. The wetland includes a narrow, emergent wetland at the lake's edge, as well as the open water area and a small forested wetland between the lake and the Nehalem River on the southern side of the lake. A colony of yellow cow-lily (Nyphar lutea) is established in the northwestern quarter of the lake. Emergents on the shoreline include native and introduced species. Wetland Classification Codes: PFO = palusirine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAP/RO Project Number.� 2995023 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Ciient/Applicant: Citv of Vernonia Site: VR-09 Plot: 22 T 4N R 4W S�_ City: Vernonia County: Columbia State: OR Plot Location; Topography Margin of bed. Project #: 2995023 Determined by: JG/ES Date: 8/4/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:Yes Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No EGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 100 Shrub/Saplina Stratum -% total cover: 0 Elodea canadensis OBL 20 Juncus effusus FACW 20 Phalaris arundinacea FACW 20 Typha latifolia OBL 20 Scirpus microcarpus OBL 10 Nuphar luteum OBL 10 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: 0 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 4 of 4 = 100 %(50/20 Rule) Remarks: Spp. are distributed along shoreline of entire pond. Vegetation, Criterion: Met? Yes SOILS' Mapped Unit Name: 32 - McNulty silt loam Drainage Class: Well drained Taxonomy: Coarse-loamv, mi�ced, mesic Fluventic Umbric Dystrochrepts FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other ❑ Histosol ❑ Prob. Aquic moisture regime ❑ Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Sample plot is near the dike and the soil is disturbed. Soil at and slightly above waterline and is continuously saturated or inundated Soil Criterion Me�? Yes Depth of inundation 2" Depth to water table: 0" Depth to saturation: 0" Primary tndicators: Secondary Indicators (2 or more required): � Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data � Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Hyd�ology Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-09 Plot: 23 T 4N R 4W S 3 City: Vernonia County: Columbia State: OR Plot Location; Topography Plot is located on a terrace between the bike path and the slope to the river. Project #: 2995023 Determined by: JG/ES Date: 8/4/99 DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No EGETATION Dominant Plant Species Ind. %Cover: Herb Stratum -% total cover: SO Phalaris arundinacea FACW 70 Convolvulus sp. UPL 30 Ind. %Cover: Shrub/Saplinp Stratum -% total cover: 0 Woodv Vine Stratum -% total cover: 20 Tree Stratum -% total cover: 0 Rubus discolor FACU 100 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 1 of 3 = 33 %(50/20 Rule) Remarks: Terrace is a mosaic of Rubus discolor clumps and herbaceous vegetation. Steep slope to the bike path is dominated by Rubus discolor. The opening is bordered by forested community consisting o.f Alnus rubra and Fraxinus latifolia. Vegetation,Criterion Met? No SOILS Mapped Unit Name: 32 - McNulty silt loam Drainage Class: Well drained Taxonomy: Coarse-loamy, mixed, mesic Fluventic Umbric Dystrochrepts FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-6" 10 YR 3/3 Silt loam 6-14" 10 YR 3/4 Sandy loam ❑ Histosol ❑ Prob. Aquic moisture regime ❑ Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Upper 6 inches contains abundance of Phalaris arundinacea (reedcanary grass) root material. Soils dry throughout profile. . � � -m. Soil.Criterion�IfAet? � `�� No: Depth of inundation 0" Depth to water table: >14" Depth to saturation: >14" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Remarks: No positive hydrological indicators. Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-09 Plot: 24 T 4N R 4W S 3 City: Vernonia County: Columbia State: OR Plot Location; Topography E of Mill Pond, W of Nehalem River on floodplain approximately 12 feet above bed. Project #: 2995023 Determined by: JG/ES Date: 8/4/99 DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? No Are Soils ❑� Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -°/a total cover: 0 Shrub/Sanlinq Stratum -% total cover: 60 Ranunculus repens FACW 70 Rubus spectabilis FAC+ 20 Polystichum munitum FACU 15 Fraxinus latifolia FACW 20 Carex obnupta OBL 15 Oemleria cerasiformis FACU 15 Ribes divaricatum FAC 15 Acer circinatum FAC- 10 Woodv Vine Stratum -% total cover: 10 Tree Stratum -% total cover: 70 . Rubus ursinus FACU 60 Alnus rubra FAC 60 Rubus discolor FACU 40 Populus balsamifera FAC 30 ' Acer macrophyllum FACU 10 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- � of _Z =�% (50/20 Rule) : l/egetatian Criterion Met? Yes ` SOII,� Mapped Unit Name: 32 - McNulty silt loam Drainage Class: Well drained Taxonomy: Coarse-loamy, mixed, mesic Fluventic Umbric Dvstrochrepts FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-10" 10 YR 2/1 10-16" 10 YR 4/3 Loam matrix Loam matrix ❑ Histosof ❑ Prob. Aquic moisture regime ❑ Redox features � Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor � Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Indistinct boundary. Soil unconsolidated; round gravel, broken mortar, terra cotta tile, brick, woody debris throughout sample. Soil' Criterion Met? ' No Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Remarks: Leaf litter not matted. Soil surface is caked Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL ClienUApplicant: Citv of Vernonia Site: VR-09 Plot: 25 T 4N R 4W S 3 City: Vernonia County: Columbia State: OR Plot Location; Topography On flood plain shelf below the bike path, 300 feet W of plot 23 Project #: 2995023 Determined by: JG/ES Date: 8/4/99 DETERMINATION: IS THIS PLOT IN A WETLAND? Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 20 Shrub/Saplinq Stratum -% total cover: 80 Phalaris arundinacea FACW 80 Fraxinus latifolia FACW 70 Tolmiea menziesii FAC . 10 Salix lasiandra FACW 15 Equisetum arvense FAC 10 Salix sitchensis FACW 15 Rubus spectabilis FAC+ Woodv Vine Stratum -% total cover: 10 Tree Stratum -% total cover: 30 Rubus discolor EACU 100 Fraxinus latifolia FACW 70 Alnus rubra FAC 30 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 4 of �_ _�% (50/20 Rule) Ve�etation Criterion Met? Yes SOILS Mapped Unit Name: 32 - McNulty silt loam Drainage Class: Well drained Taxonomy: Coarse-loamv, mixed, mesic Fluventic Umbric Dvstrochrepts FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-4" 10 YR 3/2 4-14" 10 YR 3/1 14-16" Gl Y 3110 Depth to water table: 10 YR 3/6 few, fine, distinct ❑ Histosol ❑ Prob. Aquic moisture regime ❑� Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan � Sulfidic odor ❑� Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Soil Criterion Met? ! Yes'` Depth of inundation _ Primary Indicators: ❑ Inundated 0 Saturated in upper 12" ❑ Water marks ❑� Drift lines ❑ Sediment deposits � Drainage patterns Secondary Indicators (2 or more required): Silt loam Silt loam Silt loam Depth to saturation: ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Recorded data (aerials, groundwater data) Explain: ❑ Other Explain: Hydrology Criterion Met? ' : Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 Wildlife Fish Habitat Fish Habitat Water Habitat Streams Lakes/Ponds Quality Q1: A Q1: Q1: A Q1: Q2: B Q2: Q2: C Q2: Q3: C Q3: Q3: C Q3: Q4: A Q4: Q4: A Q4: Q5: B Q5: Q5: C Q5: Q6: B Q6: Q6: B Q6: Q7: A Q8: A Q9a: Q9b: C Q1: B Q1: A Q1: Q2: A Q2: A Q2: Q3: 6 Q3: B Q3: Q4: A Q4: A Q4: Q5a: Q5: A Q5: Q5b: C Q6: A Q6: Q6: B Hydrologic Sensitivity to Control Imp act A Q1: A Q1: A A Q2: A Q2: B C Q3: A Q3: C A Q4: A Q4: C C Q5: 6 Q5: A C Q6: A Q6:. C Q7: C A Q1: A Q2: A Q3: B Q4: A Q5: B Q6: B A A A A B OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-09 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitat The wetland provides Two or more Cowardin wetland classes. habifat for some wildlife Emergent veg. & ponding or open water only. species. Low degree of Cowardin class interspersion. More than 1 acre of unvegetated open water present. Wetland not connected to another body of water, but water within 1 mile. Wetland not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Exclusive Forest use or Open Space within 500 feet of wetland edge. Fish Habitat - Streams N/A Fish Habitat - Lakes/Ponds The wetland's fish habitat More than 75% of stream shaded by riparian function is impacted or vegetation. Physical character of stream degraded. channel extensively modified/piped. Stream contains less than 10°/a of instream structures. Upstream not listed as water quality limited. Residential/Industrial land use within 500 feet of wetland edge. Non- Salmonid, non-sensitive fish species present sometime during the year. Water Quality The wetland's water quality Surface flow (including streams and ditches) function is impacted or is wetland's primary source of water. degraded. Evidence of flooding or ponding during part of the growing season. Low (<60%) degree of wetland vegetation cover. More than 5 acres of wetland area. Exclusive Forest use or Open Space within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic All or part of wetland located within 100-year control function is intact. floodplain or enclosed basin. Evidence of flooding or ponding during the growing season. Area is more than 5 acres. WaterFlow out of wetland is restricted or no outlet. Emergent veg. and ponding , or open water only is dominant cover type. Residential/Industrial land use within 500 ft of wetland on downstream or down-slope edge of wetland. Forested or natural area land use upstream. Sensitivity to lmpact The wetland is potentially Stream flow or bank has been modified by sensitive to future impacts human activities within 1 mile above wetland. Water is not being taken out of streams through active diking; drainage, or irrigation districts upstream. Upstream not listed as water quality limited in watershed upstream of the or adjacent to the wetland. Exclusive Forest use or Open Space within 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Emergent OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-09 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale ' veg. and ponding,or open water only are the dominant cover types. Enhancement Potential The wetland has moderate Wetland has lost one or more functions or potential for enhancement. one or more functions is not present in assessment results for wildlife habitat, fish habitat, water quality and hydrologic control. Wetland's primary source of water is surface flow, including streams and ditches. Water flow into wetland is restricted, but may be breached or new flow channel created. Wetland's area is more than 5 acres. Less than 10% of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sens+five to future impacts. Education The wetland has Wetland site is open to the public for direct educational uses. access or observation. There are no visible hazards to the public at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is existing physical public access to other features or it can be created easily and other habitats can be observed from this site. There is a maintained.public access point within 250 feet of the wetland's edge. Access is available for limited mobility. Recreation The wetland provides There is a maintained public access point recreational opportunities. within 250 feet of wetland's edge. Wetland is accessible by boat launch on site or within 0.5 mile. Existing developed and maintained trails and viewing areas to guide user. Wetland provides habitat for some species. Fishing is allowed at wetland or adjacent water body. Hunting is not allowed at the wetland. Aesthetic Quality The wetland is considered Two Cowardin classes are visible from to be pleasing. primary viewing area(s). More than 50% of wetland is visible from viewing area(s). General appearance of wetland has no visual detractors. Visual character with surrounding area is open or naturally landscaped. Natural, pleasant odors are present at primary viewing location. Continuous traffic and other intrusive noise and natural sounds are audible at primary viewing location. Vernonia Wetlands of Special Interest for Protection Assessment Answer Sheet WetlandCode: VR09 Question 1 B List: Question 2 B List: Question 3 B List: Question 4 B List: Question 5 B Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia Local Wetland Significance Assessment WetlandCode: VR09 A. "OUT" Test No Wetlands artific'sa4{y CREATED ENT{RELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland MEETS the criteria for identification as a Local Significant Wetland '�� Yes Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent. methodology:. No wildlife habitat, No fish habitat, No water quality, Yes hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11/2/99 Investigator(s): JG/DC Wetland Mapping Code: VR-10 Size (acres): 2.1 Data Sheet Numbers: 28, 29 Location Legal: T4N, R4W, S4 Other: SW of wastewater treatment ponds Basin: Nehalem River Soils' Mapped Series: 32 - McNulty silt loam Hydrology Hydrologic Source: Groundwater ' Wetland Ciassification(s): Dominant Vegetation Trees Shrubs Vines Symphoricarpos a/bus Rubus discolor Herbs Equisetum arvense Agrostis alba Phalaris arundinacea Phleum pratense Urtica dioica Cirsium arvense Agropyron sp. Comments: Wetland 10 is a PEM wetland that is vegetated primarily by reed canarygrass (Phalaris arundinacea). Douglas spirea and rose species are occasional. The wetland is adjacent to and below the Vernonia wastewater treatment ponds. Groundwater seepage from the ponds, if they are unlined or leaking, may contribute to wetland hydrology in this wetland. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAPIRO Projecf Number.• 2995023 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-10 Plot: 28 T 4N R 4W S 4 City: Vernonia County: Columbia State: OR Plot Location; Topography Water treatment facility, 50 yards SE of maintenance shed, flat. Project #: 2995023 Determined by: JG/ES Date: 8/5/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:yes Comments: Marginal soil and hydric indicators. Do Normal Circumstances exist on the site? yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No EGETATION� Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 95 Shrub/Sap{ina Stratum -% total cover: Phalaris arundinacea FACW 50 Symphoricarpos albus FACU 100 Equisetum arvense FAC 15 Agropyron sp. FACU 10 Agrostis alba FAC 10 Phleum pratense FAC- 5 Urtica dioica FAC+ S Cirsium arvense FACU 5 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: 0 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 1 of 1 = 100 %(50/20 Rule) Remarks: Symphoricarpos albus represents one patch, 12 feet in diameter in the center of the grass area. Vegetation Criterion Met? !- Yes SOILS Mapped Unit Name: 32 - McNulty silt loam Drainage Class: Well drained Taxonomy: Coarse-loamy, mixed, mesic Fluventic Umbric Dvstrochrepts FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Cotor Texture, Structure, Other 0-6" 10 YR 3l3 Loam 6-16" 7.5 YR 3/7 10 YR 4/4 few, small, faint Loam ❑ Histosol ❑ Prob. Aquic moisture regime ❑� Redox features � ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Weak/marginal soil indicators. Soil Criterion Met? Yes HYDROLOGY. Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: � Sediment deposits ❑ Other ❑ Drainage patterns Explain: Remarks: Sediment on grass stems and Ieaves exists Z inches above soil surface in localized areas. Weak indicator. Hydrology Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Port{and, OR 97209 (503} 274-9000 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-10 Plot: 29 T� R 4W S 4 City: Vernonia County: Columbia State: OR Plot Location; Topography W at edge of depressional area. Old �11 material, concrete and asphalt piled here. Projec #: 2995023 Determined by: JG/ES Date: 8/5/99 DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No EGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 100 Shrub/Saplina Stratum -% total cover: 0 Cirsium arvense FACU 20 Equisetum arvense Cirsium vulgare Urtica dioica Holcus lanatus FAC FACU FAC+ FAC Plantago major FACU Phalaris arundinacea FACW 15 10 5 5 5 5 Trifolium repens FAC 5 Epilobium watsonii FACW 5 Rumex crispus FAC+ 5 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: 0 Percent of Dominant Species that are OBL, FACW, or FAC (exciuding FAC- 0 of 0 = 0%(50/20 Rule) ' Vegetation Criterion Met? ' Na'' SOILSI" Mapped Unit Name: 32 - McNulty silt loam Drainage Class: Well drained Taxonomy: Coarse-loamv, mixed, mesic Fluventic Umbric Dystrochrepts FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-2" Gravel & fill material ❑ Histosol ❑ Prob. Aquic moisture regime ❑ Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: Excavation refusal at 2 inches. Primary Indicators: ❑ Inundated ❑ Saturated in upper 12" ❑ Water marks O Drift lines ❑ Sediment deposits ❑ Drainage patterns Secondary Indicators (2 or more required): ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Recorded data (aerials, groundwater data) Explain: ❑ Other Explain: Remarks: No positive hydrological indicator Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Date(s): 11/03/99 Investigator(s): JG Project Name: City of Vernonia WetlandCode: VR-10 ProjectNumber: 2995023 Wiidlife Fish Habitat Fish Habitat Habitat Streams Lakes/Ponds Q1: B Q1: Q1: Q2: C Q2: Q2: Q3: C Q3: Q3: Q4: C Q4: Q4: Q5: B Q5: Q5: Q6: B Q6: Q6: Q7: A � Q8: C Q9a: Q9b: B Water Quality Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Sensitivity to Control Impact C Q1: A Q1: A C Q2: C Q2: B A Q3: B Q3: C B Q4: C Q4: A A Q5: C Q5: A C Q6: C Q6: B Q7: A Q1: B Q1: C Q2: B Q2: B Q3: Q3: B Q4: B Q4: A Q5a: Q5: C QSb: B Q6: B Q6: B Q1: Q2: Q3: Q4: Q5: Q6: on ,. A � C Q1: C Q2: C Q3: B Q4: B Q5: B Q6: C B C A C A OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-10 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitat The wetland provides habitat for some wildlife species. One Cowardin wetland class with more than 5 plant species. Emergent veg. or wet meadow. Low degree of Cowardin class interspersion. Less than 0.5 acre of unvegelated open water present. Wetland not connected to another body.of water; but water within 1 mile. Wettand not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Residential/Industrial land use within 500 feet of wetland edcte. Fish Habitat - Streams Fish Habitat - Lakes/Ponds N/A N/A Water Quality The wetland's water quality Groundwater (including seeps and springs) is function is impacted or wetland's primary source of water. No degraded. evidence of flooding or ponding during the growing season. High (>60%) degree of wetland vegetation cover. Between 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. ResidentiaUlndustrial land use within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic All or part of wetland located within 100-year control function is lost or floodplain or enclosed basin. No evidence of not present, flooding or ponding during the growing season. Area is between 0.5 and 5 acres. Waterflow out of wetland is unrestricted. Emergent veg. or wet meadow is dominant cover type. Exclusive Forest Use or Open Space within 500 ft of wetland on downstream or down-slope edge of wetland. Urban or Urbanizing land use in watershed upstream from area. Sensitivity to Impact The wetland is potentially Stream flow or bank has been modified by sensitive to future impacts human activities within 1 mile above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not listed as water quality limited in watershed upstream of the or adjacent to the wetland. Residential/industrial (developed) land use within 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Emergent veg. only or wet meadow is the dominant cover. Enhancement Potential The wetland has moderate Wetland has lost one or more functions or � potential for enhancement. one ar more functions is not present in assessment results for wildlife habitat, fish habitat, water quality and hydrologic control. Wetland's primary source of water is OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-10 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale � groundwater, including springs and seeps. Wetland's area is between 0.5 and 5 acres. Between 10 and 40 % of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sensitive to future impacts. Education The wetland site is not Wetland site is not open to the public for appropriate for educational direct access or observation. One to two use. visible safety hazards exist at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is existing physical public access to other features or it can be created easily and other habitats can be observed from this site. 7here is not an existing access point within 250 feet of the wetland's edge (if existing-hazardous). Access is not available for limited mobi{ity. Recreation The wetland is not There is not an existing access point within appropriate for or does not 250 feet of the wetland's edge (if existing- provide recreational hazardous). Wetland not accessible by boat- opportunities. no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable): Hunting is not allowed at the wetland. Aesthetic Quality The wetland is not pleasing. One Cowardin class is visible from primary viewing area(s). Between 25 and 50°l0 of wetland is visible from viewing area(s). General appearance of wetland has visual detractors which cannot be removed easily. . Visual character with surrounding area is . open or naturally landscaped. Unpleasant odors are distinct and continuously present at the primary viewing location. Some traffic and other similar sounds and natural sounds are audible at primary viewing locations. Vernonia Wetiands of Special Interest for Protection Assessment Answer Sheet WetlandCode: VR10 Question 1 B Lisf: Question 2 B List: Question 3 B Lisf: Question 4 B List: Question 5 B Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia Local Wetland Significance Assessment WetlandCode: VR10 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wet does NOT meet the criteria for id as a Local Sig W et l and B. "IN" No Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, No water quality, No hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 , VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11/2/99 Wetland Mapping Code: VR-11 Investigator(s): JG/ES Size (acres): 0.8 Data Sheet Numbers: n/a Location Legal: T4N, R4W, S4 Other: East of Louisiana Ave., between E and F Streets Basin: Nehalem River Soils' Mapped Series: 21 D- G1ohm siit loam 3- 30% slopes Hydrology ; Hydrologic Source: Groundwater, runoff Wetland Classification(s): Dominant Vegetation Trees Shrubs Vines Herbs Fraxinus latifolia Salix sp. Alnus rubra Access to this site was not obtained; therefore, it was observed from Louisiana Avenue. A small, wet area along the northern end of Louisiana Avenue and evidence of ponding on the road indicate hydrology is present in the vicinity. The photo signature of the area at the bottom of the hillside (below Wetland 11) appears to be wet. The emergent part of the wetland is apparently cleared, forested wetland. Draft mapping of this site was modified as a result of data collected during a site visit by DSL. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water . RUB = riverine unconsolidated bottom SHAP/RO Project Number.• 2995023 Wildlife Fish Habitat Fish Habitat ; Habitat - Streams Lakes/Ponds Q1: A Q1: Q1: Q2: A Q2: Q2: Q3: C Q3: Q3: Q4: C Q4: Q4: Q5: B Q5: Q5: Q6; B Q6: Q6: Q7: A Q8: A Q9a: Q9b: A Q1: B Q1: C Q2: B Q2: A Q3: Q3: B Q4: B Q4: B Q5a: Q5: C Q5b: A Q6: B Q6: B Water Quality Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Sensitivity to Control impact C B A B C C B B B C A C C Q1: Q2: Q3: Q4: Q5: Q6: A B C C A A Q1: Q2: Q3: Q4: Q5: Q6: Q7: C Q1: C Q2: C Q3: B Q4: B Q5: B Q6: B B A A A A OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-11 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitaf The wetland provides Two or more Cowardin wetland classes. habitat for some wiidlife Woody vegetation is dominant vegetation species. cover. Low degree of Cowardin class interspersion. Less than 0.5 acre of • unvegetated open water present. Wetland not connected to another body of water, but water within 1 mile. Wetfand not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Exclusive Forest use or Open Space within 500 feet of wetland edge. More than 40% of wetland edge bordered by veg. buffer 25 or more feet wide. Fish Habitat - Streams N/A Fish Habitat - Lakes/Ponds N/A Water Quality The wetland's water quality Groundwater (including seeps and springs) is function is impacted or wetland's primary source of water. Unable to degraded. determine evidence of flooding or ponding during the growing season (or unapplicable). High (>60%) degree af wetland vegetation cover. Between 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. Exclusive Forest use or Open Space within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic No part of wetland located within 100-year control function is impacted floodplain or enclosed basin. Unable to or degraded. . determine evidence of flooding or ponding during the growing season (or not applicable). Area is between 0.5 and 5 acres. Waterflow out of wetland is unrestricted. Woody vegetation is dominant cover type. Exclusive Forest Use or Open Space within 500 ft of wetland on downstream or down-slope edge of wetland. Forested or natural area land use upstream. Sensitivity to Impact The wetland is potentially Stream flow or bank has been modified by sensitive to future impacts human activities within 1 mile above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not listed as water quality limited in watershed upstream of the or adjacent to the wetland: Exclusive Forest use or Open Space within 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Woody vegetation is the dominant cover. Enhancement Pofential The wetland has moderate Wetland has lost one or more functions or potential for enhancement. one or more functions is not present in assessment results for wildlife habitat, fish OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-11 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale habitat, water quality and hydrologic control. Wetland's primary source of water is groundwater, including springs and seeps. Wetland's area is between 0.5 and 5 acres. More than 40% of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sensitive to future impacts. Education The wetland site is not Wetland site is not open to the public for appropriate for educational direct access or observation. There �re no use. visible hazards to the public at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is no existing physical public access to other features, but observation of other features can be made. There is not an existing access point within 250 feet of the wetland's edge (if existing-hazardous). Access is not available for limited mobilitv. Recreation The wetland is not appropriate for or does not provide recreational opportunities. Aesthetic Quality The wetland is considered to be moderately pleasing. There is not an existing access point within 250 feet of the wetland's edge (if existing- hazardous). Wetland not accessible by boat- no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Two Cowardin classes are visible from primary viewing area(s). Between 25 and 50% of wetland is visible from viewing area(s}. Genera{ appearance of wetland has no visual detractors. Visual character with surrounding area is open or naturally landscaped. Natural, pleasant odors are present at primary viewing location. Some traffic and other similar sounds and natural sounds are audible at primary viewing locations. Vernonia Wetlands of Special Interest for Protection Assessment Answer Sheet WetlandCode: VR11 Question 1 B List: Question 2 B List Question 3 B List: Question 4 B List: Question 5 B Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia Local Wetland Significance Assessment WetlandCode: VR11 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland does NOT meet the criteria for i dentification as a Loca Sig Wetland B. "IN" No Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, No water quality, No hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in �regon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LQCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11/2/99 Investigator(s): JG, ES, DC Wetland Mapping Code: VR-12 a, b Size (acres): 1.85 Data Sheet Numbers: 31, 32 Location Legal: T4N, R4W, S5 Other: W of the intersection of First & Maple Street Basin: Nehalem River Soils Mapped Series: 62D - Vernonia silt loam 3-30% slope, 32 - McNulty silt loam Hydrology Hydrologic Source: Surface runoff and groundwater Wetland Classification(s): • Dominant Vegetation Trees Shrubs Vines Herbs Camments: Access was obtained for a portion of Wetland 12a; an off-site assessment was completed for Wetland 12b. Wetland 12c is accessible at street crossings. Wetland 12a is a small pond formed by a low dam or old excavation of the stream channel. The pond is shallow (approximately 12 inches), with parts silted in. Wetland trees and shrubs surround the site, which is in a mowed field. The outlet from the pond is through a culvert. The stream below the pond is intermittent. Wetland mapping of Wetland 12a modified from draft maps as a result of data collected during DSL site visit. A small wetland located on a bench north of the. stream was removed from the mapping. Wetland 12b is Bear Creek. The wetland is confined to the bed and banks of the stream. Parts of the streambank are armored with rock. Parts of the stream support wetland vegetation. The stream crosses streets in culverts. This wetland has been highly modified. Access was obtained for Wetland 12a. Wetland 12b is accessible at street crossings. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAPIRO Project Number.� 2995023 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-12a Plot: 31 T 4N R 4W S 5 City: Vernonia County: Columbia State: Qg_ Plot Location; Topography 300 feet W of intersection of First and Maple Street. Pro}ect #: 2995023 Determined by: 3G/ES Date: g/5/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:Yes Comments: Wetland area is primarily an emergent and open water area surrounded by willow trees and shrubs. Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATfON Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 70 Shrub/Saplinq Stratum -% total cover: 20 Glyceria grandis OBL 70 Salix lasiandra FACW 80 Phalaris arundinacea FACW 20 Salix sitchensis FACW 20 Ludwigia palustris OBL 10 Alnus rubra FAC S Alopecurus geniculatus OBL 5 Woodv Vine Stratum - % total cover: 0 Tree Stratum - % total cover: 30 Salix lasiandra FACW 100 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 5 of 5 = 100 %(50/20 Rule) Vegetation Criterion Met? Yes OILS Mapped Unit Name: 62D - Vernonia silt loam 3-30% slopes Drainage Class: Well drained Taxonomy: Fine-siltv, milced, mesic Ultic Hapludalfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Calor Redox Abundance, Size, Coior Texture, Structure, Other 0-4" 10 YR 4/1 4-14" 10 YR 2/1 14-16" 10 YR 2/1 Silt Silt � Muck ❑ Histosol ❑ Prob. Aquic moisture regime ❑ Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan OO Sulfidic odor � Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Rernarks: Soil is saturated to surface, very sloppy. Soil Criterion Met? Yes HYDROLOGY' Depth of inundation 0" Depth to water table: 10" Depth to saturation: 0" Primary Indicators: ❑ Inundated ❑� Saturated in upper 12" ❑ Water marks ❑ Drift lines ❑ Sediment deposits � Drainage patterns Secondary Indicators (2 or more required): � Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Recorded data (aerials, groundwater data) Explain: ❑ Other Explain: Hydrology Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERM{NATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-12a Plot: 32 T 4N R 4W S 5 City: Vernonia County: Columbia State: OR Plot Location; Topography S of wetland plot in pasture area. Project #: 2995023 Determined by: 7G/ES Date: 8/S199 DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Norma! Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydroiogy ❑ significantly disturbed? No VEGETATION Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -% total cover: 90 Shrub/Sanlinq Stratum -% total cover: 5 Phalaris arundinacea FACW 30 Pteridium aquilinum FACU 100 Chrysanthemum leucanthemum UPL 20 Agrostis alba FAC 20 Fragaria sp. UPL 10 Lotus corniculatus FAC 10 Holcus lanatus FAC 5 Cirsium arvense FACU 5 Woodv Vine Stratum -°/a total cover: 5 Tree Stratum -% total cover: 0 Rubus laciniatus FACU 100 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 2 of 5 = 40 %(50/20 Rule) Vegetation Criterion Met? No SOILS Mapped Unit Name: 62D - Vernonia silt loam 3-30% slopes Drainage Class: Well drained Taxonomy: Fine-silty, mixed, mesic LJltic Hapludalfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Calar Texture, Structure, Other 0-4" 10 YR 2/2 10 YR 4/3 common, medium, distinct; very loose Silt loam and fryable 4-12" 10 YR 3/1-3/2 tight, hard compact Silt loam 12-16" 10 YR 3/2 10 YR 3/4 common, rnedium, distinct; less hard but Clayey silt loam crumbly ❑ Histosol ❑ Prab. Aquic moisture regime � Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Soil Criterion Met? Yes HYDROLOGY Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: Secondary Indicators (2 or more required): ❑ Inundated ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Saturated in upper 12" ❑ Water-stained ieaves ❑ FAC-Neutral test ❑ Water marks ❑ Recorded data (aerials, groundwater data) ❑ Drift lines Explain: ❑ Sediment deposits ❑ Other ❑ Drainage patterns Explain: Remarks: Field may be tilled for drainage. No signs of wetland hyrology. Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Date(s): 11/15/99 Investigator(s): JG Project Name: City of Vernonia WetlandCode: VR-12 a, b, c ProjectNumber: 2995023 Wildlife Fish Habitat ` Habitat Streams Q1: A Q1: C Q2: A Q2: C Q3: C Q3: B Q4: C Q4: A Q5: A Q5: C Q6: A Q6: A Q7: A Q8: C Q9a: Q9b: B Q1: B Q2: A Q3: A Q4: B Q5a: Q5b: B Q6: B Fish Habitat Lakes/Ponds Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: A B B A A A Water Quality Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Control A Q1: A A Q2: A A Q3: B B Q4: C A Q5: A C Q6: A Q7: C A Q1: C Q2: C Q3: B Q4: B Q5: B Q6: B C C B B A Sensitivity to Impact Q1: Q2: Q3: Q4: Q5: Q6: B B C A A A OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetiandCode: VR-12 a, b, c ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitat The wetland provides Two or more Cowardin wetland classes. habitat for some wildlife Woody vegetation is dominant vegetation species. cover. Low degree of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland connected to another body of water by surface water. Wetland connected to other wetlands within a 3 mile radius: Upstream not listed as water quality limited. Residential/Industrial land use within 500 feet of wetland edge. Fish Habitat - Streams The wetland's fish habitat Less than 50°to of stream shaded by riparian function is impacted or vegetation. Physical character of stream degraded. channel extensively modified/piped. Stream contains between 10 and 25% of instream structures. Upstream not listed as water quality limited. Residential/Industrial land use within 500 feet of wetland edge. Salmon, trout, or sensitive species present sometime during the year. Fish Habitat - Lakes/Ponds N/A Water Quality � The wetland's water quality Surface flow (including streams and ditches) function is intact. is wetland's primary source of water. Evidence of flooding or ponding during part of the growing season. High (>60%) degree of � wetland vegetation cover. Between 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. Residential/Industrial land use within 500 feet of wetland edge. � Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydrologic Confrol The wetland's hydrologic All or part of wetland located within 100-year controf function is intact. floodplain or encfosed basin. Evidence of flooding or ponding during the growing season. Area is between 0.5 and 5 acres. Waterflow out of wetland is unrestricted. Woody vegetation is dominant cover type. Residential/Industrial land use within 500 ft of wetfand on downstream or down-slope edge of wetland. Forested or natural area land use upstream. Sensitivity to lmpact The wetland is potentially Stream flow or bank has not been modified by sensitive to future impacts human activities within 1 mile above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not listed as water quality limited in watershed upstream of the or adjacent to the wetland. Residential/industrial (developed) land use within 500 feet of wetland's edge. Dominant Residential/lndustrial (devefoped) land use within 500 feet of wetland's edge. Woody OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-12 a, b, c ProjectNumber: 2995023 Function Evaluation Descriptor Rationale vegetation is the dominant cover. Enhancement Potential The wetland has moderate Wetland has lost one or more functions or potential for enhancement. one or more functions is not present in assessment results for wildlife habitat, fish habitat, water quality and hydrologic control. Wetland's primary source of water is surface flow, including streams and ditches. Water flow into wetland is not restricted, but if blocked, obstruction can be removed easily. Wetland's area is between 0.5 and 5 acres. ' Between 10 and 40 % of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sensitive to future impacts. Education The wetland has potential Wetland site is open to the public for direct for educational use. access or observation. One to two visible safety hazards exist at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is existing physical public access to other features or it can be created easily and other habitats can be observed from this site. There is a maintained public access point within 250 feet of the wetland's edge. Access is available for limited mobility. Recreation The wetland has the There is a maintained public access point potential to provide within 250 feet of wetland's edge. Wetland not recreational opportunities. accessible by boat-no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Aesthefic Quality The wetland is not pleasing. Two Cowardin classes are visible from primary viewing area(s). Less than 25% of wetland is visible from viewing area(s). General appearance of wetland has visual detractors which cannot be removed easily. Visual character with surrounding area is landscaped or manipulated by people. At certain times, unpleasant odors are present at the primary viewing location. Some traffic and other similar sounds and natural sounds are audible at primary viewing locations. Vernonia Wetlands of Speciaf lnterest for Protection Assessment Answer Sheet WetlandCode: VR12 This is potentially a Wetland of Special Interest for Protection. Question 1 A List: Question 2 A List: Question 3 B List: Question 4 B List: Question 5 B Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B Shapiro and Associates, 1nc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia Locai Wetland Significance Assessment WetlandCode: VR12 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surFace mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland MEETS the criteria for identification as a Local Significant Wetland B. "IN" Yes Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, Yes water quality, Yes hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communi#ies including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. Yes Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. Yes Wetland rates in either the highest or second highest category for Fish Habitat in OFVNAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCAL�Y unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11/2/99 Wetland Mapping Code: VR-13 Investigator(s): JG/ES/DC Size (acres): 2.21 Data Sheet Numbers: n/a Location Legal: T5N, R4W, S34 Other: Parallel to Knot Street Basin: Nehalem River Soils Mapped Series: 59 - Udifluvents-Dystrochrepts complex, 58 - Treharne silt loam Hydrology Hydrologic Source: Surface runoff Wetland Classification(s): Dominant Vegetatian Trees Alnus rubra Thuja plicata Salix lasiandra Salix sitchensis Alnus rubra Shrubs Physocarpus capitatus Rubus parviflorus Sambucus racemosa Vines Rubus laciniatus Rubus discolor Herbs Oenanthe sarmentosa Phalaris arundinacea Scirpus microcarpus Wetland 13 is Knickerson Creek and adjacent wetland. It is divided into two sections by a crossing on Knott Street. Above the crossing, the stream and wetland have fairly natural conditions. The stream has gently sloping banks and deep and shallow areas. Vegetation forms a canopy over the stream. Below the crossing, the stream has been manipulated. Significant parts of the channel have been excavated. Vegetation (trees and shrubs) have been removed. Himalayan blackberry (Rubus discolor) overgrows part of the channel. New street construction and associated work included excavating and reshaping the creek bank on the lower sectiorr. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAPIRO Project Number.• 2995023 OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Date(s): 11/02/99 investigator(s): DC/JG Project Name: City of Vernonia WetlandCode: VR-13 ProjectNumber: 2995023 Wildlife Habitat Q1: Q2: Q3: Q4: Q5: Q6: Q7: Q8: Q9a: Q9b: Fish Habitat Fish Habitat Streams �Lakes/Ponds A Q1: A Q1: A Q2: A Q2: C Q3: A Q3: C Q4: A Q4: A Q5: B Q5: A Q6: A Q6: A B A Q1: B Q2: A Q3: A Q4: B Q5a: Q5b: A Q6: B Q1: Q2: Q3: Q4: Q5: Q6: C A B B A B Water Qua lity Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Sensitivity to Control Impact A A A B B C A A B B A B C Q1: Q2: Q3: Q4: Q5: Q6: B B C B A A Q1: Q2: Q3: Q4: Q5: Q6: Q7: A Q1: C Q2: C Q3: B Q4: B Q5: B Q6: A C A A A A OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-13 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitat The wetland provides Two or more Cowardin wetland classes. habitat for some wildlife Woody vegetation is dominant vegetation species. cover. Low degree of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland connected to another body of water by surface water. Wetland connected to other wetlands within a 3 mile radius. Upstream not listed as water quality limited. Agricultural land use within 500 feet of wetland edge. More than 40% of wetland edge bordered by veg. buffer 25 or more feet wide. Fish Habitat - Streams The wetland's fish habitat More than 75% of stream shaded by riparian function is intact. vegetation. Stream channel natural/returning to natural physical character. Stream contains more than 25% of instream structures. Upstream not listed as water quality limited. Agricultural land use within 500 f# of wetland edge. Salmon, trout, or sensitive species present sometime during the year. Fish Habitat - Lakes/Ponds N/A Water Qualify The wetland's water quality Surface flow (including streams and ditches) function is intact. is wetland's primary source of water. Evidence of flooding or ponding during part of the growing season. High (>60°/o) degree of wetland vegetation cover. Between 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. Agricultural land use within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic All or part of wetland located within 100-year control function is impacted floodplain or enclosed basin. Evidence of or degraded. flooding or ponding during the growing season. Area is between 0.5 and 5 acres. Minor restrictions slow down waterflow out of the wetland. Woody vegetation is dominant cover type. Agriculturaf land use within 500 ft of wetland on downstream or down-slope edge of wetland. Forested or natura! area land use upstream. Sensitivity to Impact The wetland is potentially Stream flow or bank has not been modified by sensitive to future impacts human activities within 1 mile above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not {isted as water quality limited in watershed upstream of the or adjacent to the wetfand. Agricultural land use within 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Woody vegetation is the dominant cover. Fnhan�ampnt PntPntial OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-13 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale The wetland has moderate Wetland has lost one or more functions or potentia{ for enhancement. . one or more functions is not present in assessment results for wildlife habitat, fish habitat, water quality and hydrologic control. Wetland's primary source of water is surface flow, including streams and ditches. Water flow into wetland is not restricted, but if blocked, obstruction can be removed easily. Wetland's area is between 0.5 and 5 acres. More than 40% of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sensitive to future impacts. Education The wetland site is not Wetland site is not open to the public for appropriate for educational direct access or observation. There are no use. visible hazards to the public at the wetland site. Provides wild{ife habitat for some species, or fish habitat is impacted or degraded. There is no existing physical public access to other features, but observation of other features can be made. There is a maintained public access point within 250 feet of the wetland's edge. Access is not available for limited mobility. Recreation The wetland has the There is a maintained public access point potential to provide within 250 feet of wetland's edge. Wetland not recreational opportunities. accessible by boat-no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Aesfhetic Quality The wetland is considered More than two Cowardin classes are visible to be moderately pleasing. from primary viewing area(s). Less than 25% of wetland is visible from viewing area(s). General appearance of wetland has no visual detractors. Visual character with surrounding area is open or naturally landscaped. Natural, pleasant odors are present at primary viewing location. Some traffic and other similar sounds and natural sounds are audible at primary viewing locations. �Vernonia Wetlands of Special Interest for Protection Assessment Answer Sheet WettandCode: VR13 This is potentially a Wetland of Special Interest for Protection. Question 1 A List: Question 2 B List: Question 3 B List: Question 4 B List: Question 5 B • Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia Local Wetland Significance Assessment WetlandCode: VR13 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland MEETS the criteria for identification as a Local Significant Wetland I:�Y I `W Yes Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, Yes fish habitat, No water quality, No hydrologic control. Yes Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. Yes Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. Yes Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous.salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 7/27/99 Investigator(s): JG/ES Wetland Mapping Code: VR-14 Size (acres): 6.8 Data Sheet Numbers: 26, 27 Location Legal: T4N, R4W, S4 Other: Former mill site, S of Bridge Street Basin: Nehalem River Soils ' Mapped Series: 58 - Treharne silt loam, 32 - McNulty silt loam Hydrology Hydrologic Source: Precipitation and groundwater Wetland Classification(s): Dominant Vegetation Trees Fraxinus latifolia Shrubs Rosa pisocarpa Symphoricarpos albus Spiraea douglasii Malus fusca Physocarpus capitatus Fraxinus latifolia Prunus emarginata Vines Herbs Carex obnupta This wetland occurs in patches or a mosaic of PFO, PSS, and PEM areas. The site is in a floodplain adjacent to the Nehalem River. It is the site of a historic mill facility. Wetland vegetation on the site is fairly diverse, and interspersion is moderate to high. A small pond behind the elementary school is in poor condition; it is/has been used to dispose of grass cuttings, other trimmings, and trash. The pond and ditch to the east would make a good cleanup/enhancemenUoutside classroom facility. A wetland delineation of most of Wetland 14 was performed by A.G. Crook Company (DSL #95-0347). Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAPlRO Project Number. 2995023 WETLAND DETERMINATION DATA SHEET -1987 MANUAL Client/Applicant: Citv of Vernonia Site: VR-14 Plot: 26 T 4N R 4W S 4 City: Vernonia County: Columbia State: OR Plot Location; Topography S of Bridge Street, E of elementary school; 30 feet E of street. Project #: 2995023 Determined by: JS/EG Date: 8/5/99 DETERMINATION: IS THIS PLOT IN A WETLAND?:Yes Do Normal Circumstances exist on the site? Yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No �GETATION Dominant Plant Species Ind: %Cover: Herb Stratum -% total cover: 50 Carex obnupta OBL 100 Ind. %Cover: Shrub/Saplinq Stratum.- % total cover: 70 Rosa pisocarpa FAC 35 Prunus emarginata FACU 15 Malus fusca FACW 15 Spiraea douglasii FACW 15 Physocarpus capitatus FACW 10 Symphoricarpos albus FACU 10 Fraxinus latifolia FACW 5 Woodv Vine Stratum -% total cover: 0 Tree Stratum -°/a total cover: SO Fraxinus latifolia FACW 100 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 3 of 3 = 100 %(50/20 Rule) lfegetation Criterion Met?. Yes SQILS' Mapped Unit Name: 58 - Treharne silt loam Drainage Class: Moderatelv well drained Taxonomy: Fine-silty, mixed, mesic Aquultic Hapludalfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-14" 10 YR 4/1 10 YR 2/2 common, medium, distinct Loam 14-16" 10 YR 4/1 10 YR 3/4 common, medium, Silt loam ❑ Histosol ❑ Prob. Aquic moisture regime 0 Redox features ❑ Organic streaking ❑ Histic epipedon ❑ Reducing conditions ❑� Concretions ❑ Organic pan ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer ❑ On hydric soils list Remarks: A few small concretions exist in upper 14 inches. Soil moderately moist throughout. Soil Criter,ian Met? ' Yes Depth of inundation 0" Depth to water table: >16" Depth to saturation: >16" Primary Indicators: ❑ Inundated ❑ Saturated in upper 12" ❑ Water marks ❑ Drift lines ❑ Sediment deposits �❑ Drainage patterns Secondary Indicators (2 or more required): ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leaves ❑ FAC-Neutral test ❑ Recorded data (aerials, groundwater data) Explain: ❑ Other Explain: Hydrology Criterion Met? Yes Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 WETLAND DETERMINATION DATA SHEET -'1987 MANUAL Ciient/Applicant: Citv of Vernonia Site: VR-14 Plot: 27 T 4N R 4W S 4 City: Vernonia County: Columbia State: OR Plot Location; Topography S. of Bridge Street, E of elementary school, on E shoulder of street Project #: 2995023 Determined by: JG/ES Date: DETERMINATION: IS THIS PLOT IN A WETLAND?: No Do Normal Circumstances exist on the site? yes Are Soils ❑ Vegetation ❑ Hydrology ❑ significantly disturbed? No VEGETATION� Dominant Plant Species Ind. %Cover: Ind. %Cover: Herb Stratum -°/a total cover: 90 Shrub/Saplina Stratum -% total cover: 0 Lolium perenne FACU 20 Trifolium repens FAC 20 Matricaria matricarioides FACU 15 Agrostis stolonifera FAC 10 Plantago major FACU 10 Taraxacum offacinale FACU 10 Hypochaeris radicata FACU 10 Daucus carota UPL 5 Woodv Vine Stratum -% total cover: 0 Tree Stratum -% total cover: _50 Acer macrophyllum FACU 100 Percent of Dominant Species that are OBL, FACW, or FAC (excluding FAC- 1 of 3 = 33 %(50/20 Rule) Mapped Unit Name: 58 - Treharne silt loam Drainage Class: Moderately well drained Taxonomy: Fine-silty, mixed, mesic Aquultic Hapludalfs FIELD SOIL CHARACTERISTICS: Horizon Depth Matrix Color Redox Abundance, Size, Color Texture, Structure, Other 0-2" 2-4" 10 YR 3/2 compact, mixed matrix ❑ Histosol ❑ Prob. Aquic moisture regime ❑ Redox features ❑ Histic epipedon ❑ Reducing conditions ❑ Concretions ❑ Sulfidic odor ❑ Gleyed ❑ Highly organic surface layer Remarks: Excavation refusal below 4 inches. 3/4 -min gravel Color also: 10 YR 4/6 and 10 YR 3/4 ❑ Organic streaking ❑ Organic pan ❑ On hydric soils list Soi1 Criterion=Met? No HYDROLOGY_' Depth of inundation Depth to water table: Depth to saturation: Primary Indicators: ❑ Inundated ❑ Saturated in upper 12" ❑ Water marks. ❑ Drift lines ❑ Sediment deposits ❑ Drainage patterns Secondary Indicators (2 or more required): ❑ Oxidized rhizospheres ❑ Local soil survey data ❑ Water-stained leave"s ❑ FAC-Neutral test ❑ Recorded data (aerials, groundwater data) Explain: ❑ Other Explain: Remarks: No positive hydrological indicators. Hydrology Criterion Met? No Shapiro and Associates, Inc. 1650 N.W. Naito Parkway, Suite 302 Portland, OR 97209 (503) 274-9000 OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Date(s): 11/02/99 Investigator(s): JG/DC Project Name: City of Vernonia WetlandCode: VR-14 ProjectNumber: 2995023 Wildlife Habitat Q1: Q2: Q3: Q4: Q5: Q6: Q7: Q8: Q9a: Q9b: A A A C B B A C Fish Habitat Fish Habitat Streams LakeslPonds Q1: Q1: Q2: Q2: Q3: Q3: Q4: Q4: Q5: Q5: Q6: Q6: Water ' Hydrologic Quality Control Q1: B Q1: A Q2: C Q2: C Q3: A Q3: Q4: B Q4: C Q5: A Q5: A Q6: C Q6: A Q7: A Sensitivity to , Impact Q1: A Q2: B Q3: C Q4: A Q5: A Q6: A � Enhancement ; Education ': Recreation Aesthetic : 'Potential . Quality Q1: B Q1: A Q1: C Q1: A Q2: C Q2: A Q2: C Q2: B Q3: Q3: B Q3: C Q3: A. Q4: B Q4: A Q4: B Q4: A Q5a: Q5: C Q5: B Q5: C Q5b: B Q6: B• Q6: B Q6: A Q6: B OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-14 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habitat The wetland provides Two or more Cowardin wetland ciasses. habitat for some wildlife Woody vegetation is dominant vegetation species. cover. Fiigh degree of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland not connected to another body of water, but water within 1 mile. Wetland not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Residential/Industrial land use within 500 feet of wetland edge. Fish Habitat - Sfreams N/A Fish Habitat - Lakes/Ponds N/A Water Quality The wetland's water quality Precipitation or sheet flow is wetland's function is impacted or primary source of water. No evidence of degraded. flooding or ponding during the growing season. High (>60%) degree of wetland vegetation cover. Between 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. Residential/Industrial land use within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydro/ogic Control . The wetfand's hydrologic All or part of wetland located within 100-year control function is intact. floodplain or enclosed basin. No evidence of flooding or ponding during the growing season. Waterflow out of wetland is unrestricted. Woody vegetation is dominant cover type. Residential/Industrial land use within 500 ft of wetland on downstream or down-slope edge of wetland. Urban or Urbanizing land use in watershed upstream from area. Sensitivity to Impact The wetland is potentially Stream flow or bank has been modified by sensitive to future impacts human activities within 1 mile above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not listed as water quality limited in watershed upstream of the or adjacent to the wetland. Residential/industrial (developed) land use within 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Woody vegetation is the dominant cover. Enhancement Potenfial The wetland has moderate Wetland has lost one or more functions or potential for enhancement. one or more functions is not present in assessment results for wildlife habitat, fish habitat, water guality and hydrologic control. Wetland's primary source of water is precipitation or sheet flow. Wetland's area is between 0.5 and 5 acres. Between 10 and 40 OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-14 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale % of wetland's edge is bordered by a vegetative buffer 25 or more feet wide. Wetland is potentially sensitive to future impacts. Education The wetland has potential Wetland site is open to the public for direct for educational use. access or observation. There are no visible hazards to the public at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is existing physical public access to other features or it can be created easily and other habitats can be observed from this site. There is not an existing access point within 250 feet of the wetland's edge (if existing-hazardous). Access is not available for limited mobility. Recreation The wetland is not There is not an existing access point within appropriate for or does not 250 feet of the wetland's edge (if existing- provide recreational hazardous). Wetland not accessible by boat- opportunities. no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Aesthetic Qualify The wetland is considered More than two Cowardin classes are visible to be moderately pleasing. from primary viewing area(s). Befinreen 25 and 50% of wetland is visible from viewing area(s). General appearance of wetland has no visual detractors. Visual character with surrounding area is open or naturally landscaped. Unpleasant odors are distinct and continuously present at the primary viewing location. Some traffic and other similar sounds and natural sounds are audible at primary viewing locations. Vernonia Wetlands of Special Interest for Protection Assessment Answer Sheet WetiandCode: VR14 Question 1 B Lisf: Question 2 B List: Question 3 B List: Question 4 B List: Question 5 B Question 6 B Question 7 B List: Question 8 B Question 9 B Question 10 B , Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Project Number: 2995023 Vernonia �� Local Wetland Significance Assessment I WetlandCode: VR14 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; � (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland MEETS the criteria for identification as a Local Significant Wetland B. ��N�• Yes Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, No water quality, Yes hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRITERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERiON (at discretion of local government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONtA LOCAL WETLANDS tNVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11/02/99 Investigator(s): JG Wetland Mapping Code: VR-15 Size (acres): 1.27 Data Sheet Numbers: None Location Legal: T4N R4W Sec. 3 Other: South of the intersection of Hwy.47 and Knott St. Basin: Nehalem River Soils ' Mapped Series: 20 - Elertsen silt loam, 58 - Treharne silt loam Hydrology " Hydrologic Source: Groundwater, surface flow. Wetland Classification(s): PEM Dominant:Vegetation Trees Shrubs Vines Herbs Phalaris arundinacea Comments: : OFF-SITE DETERMINATION: Access was denied to this site. VR-15 is an emergent wetland dominated by grasses and emergent vegetation within a fenced pasture. A local contact indicated that the site floods frequently. Draft maps modified as a result of data collected during a site visit by DSL. Wetland ClassiFcation Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAP/R0 Project Number.• 2995023 OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Date(s): 11/03/99 . Investigator(s): JG Project Name: City of Vernonia WetlandCode: VR-15 ProjectNumber: 2995023 Wildlife Habitat Q1: Q2: Q3: Q4: Q5: Q6: Q7: Q8: Q9a: Q9b: B C C C B B A C Fish Habitat Streams Q1: Q2: Q3: Q4: Q5: Q6: �- Q1: B Q2: C Q3: Q4: B Q5a: Q5b: C Q6: B Fish Habitat LakeslPonds Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: A B B C C B Water Qual ity Q1: Q2: Q3: Q4: Q5: Q6: Q1: Q2: Q3: Q4: Q5: Q6: Hydrologic Control B Q1: A A Q2: A A Q3: B B Q4: C A Q5: C C Q6: A Q7: A C Q1: C Q2: C Q3: B Q4: B Q5: B Q6: C A C B B C Sensitivity to Impact Q1: Q2: Q3: Q4: Q5: Q6: A B C A A B OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-15 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale Wildlife Habifat The wetiand provides One Cowardin wetland ciass with more than 5 habitat for some wildlife plant species. Emergent veg. or wet meadow. species. Low degree of Cowardin class interspersion. Less than 0.5 acre of unvegetated open water present. Wetland not connected to another body of water, but water within 1 mile. Wetland not connected to other wetlands, but within 3 mile radius of other wetlands. Upstream not listed as water quality limited. Residential/Industrial land use within 500 feet of wetland edge. Fish Habitat - Streams N/A Fish Habitat - Lakes/Ponds N/A Water Quality The wetland's water quality Precipitation or sheet flow is wetland's function is intact. primary source of water. Evidence of flooding or ponding during part of the growing season. High (>60%) degree of wetland vegetation cover. Befinreen 0.5 and 5 acres of wetland connected to other wetlands within a 3 mile radius. Residential/Industrial land use within 500 feet of wetland edge. Upstream not listed as water quality limited in watershed or adjacent to the wetland. Hydrologic Control The wetland's hydrologic All or part of wetland located within 100-year control function is intact. floodplain or enclosed basin. Evidence of flooding or ponding during the growing season. Area is between 0.5 and 5 acres. Waterflow out of wetland is unrestricted. Emergent veg. or wet meadow is dominant cover type. Residential/Industrial land use within 500 ft of wetland on downstream or down-slope edge of wetland. Urban or Urbanizing land use in watershed upstream from area. Sensitivity to Impact Enhancement Potential The wetland is potentially sensitive to future impacts The wetland has little enhancement potential. Stream flow or bank has been modified by human activities within 1 mile above wetland. Water is not being taken out of streams through active diking, drainage, or irrigation districts upstream. Upstream not tisted as water quality limited in watershed upstream of the or adjacent to the wetland. Residential/industrial (developed) land use within 500 feet of wetland's edge. Dominant Residential/Industrial (developed) land use within 500 feet of wetland's edge. Emergent veg. only or wet meadow is the dominant cover. Wetland has lost one or more functions or one or more functions is not present in assessment results for wildlife habitat, fish habitat, water quality and hydrologic control. Wetland's primary source of water is OREGON FRESHWATER WETLAND ASSESSMENT METHODOLGY Function and Condition Summary Sheet for the Oregon Method WetlandCode: VR-15 ProjectNumber: 2995023 Function Evaluation Descriptor Rationale precipitation or sheet flow. Wetland's area is between 0.5 and 5 acres. Less than 10% of wetland's edge is bordered by a vegetatiVe buffer 25 or more feet wide. Wetland is potentially sensitive to future impacts. Educafion The wetland has potential Wetland site is open to the public for direct for educationaf use. access or observation. One to two visible sa#ety hazards exist at the wetland site. Provides wildlife habitat for some species, or fish habitat is impacted or degraded. There is no existing physical public access to other features, and observation of other features cannot be made. There is not an existing access point within 250 feet of the wetland's edge (if existing-hazardous). Access is not available fior limited mobility. Recreation The wetland is not There is not an existing access point within appropriate for or does not 250 feet of the wetland's edge (if existing- provide recreational hazardous). Wetland not accessible by boat- opportunities. no boat launch within 1 mile/ cannot develop. No existing trails and viewing areas to guide user or if created, would disrupt wildlife or plant habitat. Wetland provides habitat for some species. Fishing is not allowed at wetland or adjacent water body (or not applicable). Hunting is not allowed at the wetland. Aesthetic Quality The wetland is not pleasing. One Cowardin class is visible from primary viewing area(s). More than 50% of wetland is visible from viewing area(s). General appearance of wetland has visual detractors which cannot be removed easily. Visual character with surrounding area is landscaped or manipulated by people. At certain times, unpleasant odors are present at the primary viewing location. Continuous traffic and other intrusive noise and NO natural sounds are audible at primary viewing location. Vernonia Wet(ands of Special Interest for Protection Assessment Answer Sheet WetlandCode: VR15 Question 1 B List: Question 2 B List: � Question 3 B List: Question 4 B List: Question 5 B Question 6 B � Question 7 B List: Question 8 B Question 9 B Question 10 B Shapiro and Associates, Inc., 1650 N.1N. Naito Parkway, Suite 302, Portland, Oregon 97209 . Project Number: 2995023 Vernonia Local Wetland Significance Assessment WetlandCode: VR15 A. "OUT" Test No Wetlands artificially CREATED ENTIRELY FROM UPLAND that are: (a) created for the purpose of controlling, storing, or maintaining stormwater; (b) active surface mining ponds; (c) ditches without free and open connection to waters of the state AND without fish; (d) <1 acre and unintentionally created from irrigation leak or construction activity; (e) of any size and created for the purpose of wastewater treatment, stock watering, settling of sediment, cooling industrial water, or as a golf course hazard. No Documented as being contaminated by hazardous substances, materials or wastes ("Hazmat sites"). This wetland MEETS the criteria for identification as a Local Significant Wetland B. , •�N•• Yes Wetlands that score the highest rank for ANY of the four ecological functions addressed by OFWAM or equivalent methodology: No wildlife habitat, No fish habitat, No water quality, Yes hydrologic control. No Wetlands that (1) are rated in either the highest or second highest category for water quality (in OFWAM or equivalent) AND that (2) the wetland is within one-quarter mile from a water quality- limited stream as listed by DEQ. No Contains one or more rare wetland plant communities including those listed in the Oregon Natural Heritage Program's CLASSIFICATION AND CATALOG OF NATIVE WETLAND PLANT COMMUNITIES IN OREGON as G1-G3 and S1-S3. No Inhabited by any species listed by the federal or state government as a sensitive, threatened or endangered species in Oregon (unless consultation with appropriate agency deems the site not important for the maintenance of the species. No Wetland rates in either the highest or second highest category for Fish Habitat in OFWAM and is located adjacent to a stream segment that is mapped by ODFW as habitat for "Indigenous anadromous salmonids." No OPTIONAL CRI7ERION (at discretion of local government): Wetland represents a LOCALLY unique plant community. No OPTIONAL CRITERION (at discretion of Iocal government): Wetland is publicly owned, rates highest rank for education potential, and there is documented use for educational purposes by a school or organization. Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97215 Project Number: 2995023 VERNONIA LOCAL WETLANDS INVENTORY - Wetland Summary Sheet - Date(s) of Field Verification: 11/02/99 Wetland Mapping Code: VR-16 Investigator(s): JG Size (acres): 12.3 Data Sheet Numbers: None Location Legal: T4N R4W Sec. 4 Other: South of Bridge St., west of Vernonia Lake, and east of Rock Creek Basin: Nehalem River Soils - Mapped Series: 32 - McNulty silt loam Hydrology ; Hydrologic Source: Surface flow Wetland Classification(s): PAB, PEM Dominant Vegetation Trees Shrubs Vines Herbs VR-16 consists of sewage water treatment ponds. Wetland Classification Codes: PFO = palustrine forested PSS = palustrine scrub-shrub RSB = riverine streambed (intermittent) PEM = palustrine emergent POW = palustrine open water RUB = riverine unconsolidated bottom SHAPIRO Project Number.• 2995023 . . � . � ' � .. .. � 9 . . . . . � � .. ' ' .� - , � . . � . - - � Append� B � Riparian Data and Summary Sheets Urban htiparian Inventory and Assessment � Project Number: 2995023 Praject Name: Vemonia LWi Riparian Code: BC-R1 Date: 11/17/99 Investigators: JG Dominant tree species: Pseudotsuga menziesii Potential tree height (PTH)�dth of Riparian Area: 120/120 �dth measured horizontally from edge of water resource) PTH determined by: ❑ On-site vegetation � Reference site Code: Adjacent upland , Comments: The upstream end of this reach is the UGB. The downstream end is the edge of residential development. The reach is in a field that may be mowed for hay. Typical Cross Section: . Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Urban Riparian Inventory and Assessment Project Number: 2995023 Project Name: Vernonia LWl Riparian Code: BC-R1 Riparian Characterization Form Part � General Information Date: 11I17/99 On-site 0 Office ❑ Investigators: JG Water Resource Information Water Resource: Reach Length: 900 Hydrologic Basin: Bear Creek Stream/River � Width: 3 Lake/Pond � Width: 20 Wetland � Width: 75 LV1/f Wetland Code: VR-12A Water present year-round: Yes Are salmonids present in the adjacent water resource: Yes Is the water resource listed for temperature on DEQ's 303(d) list: No Within FEMA-mapped 100-year floodplain: Yes Mapped soil series: 62D, Vernonia silt loam, 3-30% slope Adjacent Land Uses? Agriculture � Commercial ❑ Woody Vegetation Pseudotsuga menziesii Acer macrophyllum Alnus rubra Saxifraga cernua Thuja plicata Tsuga heteraphylla Rosa pisocarpa Acer circinatum Residential ❑ Undeveloped ❑ Roads ❑ Forestry � Herbaceous Vegetation Phalaris arundinacea Berberis aquifolium Polystichum munitum Gaultheria shallon Pteridium aquilinum Rubus discolor Rubus laciniatus Cirsium arvense Daucus carota Festuca Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Urban Riparian Inventory and Assessment P�oject Number: 2995023 Project Name: Vernonia LWI Riparian Code: BC-R1 Riparian; Gharacterization Form Part 2 Average slope in the riparian area (Question 1) � <1�:1 (10%) ❑ Between 10:1 (10°/a) and 5:1 (20%) ❑ >5:1 (20%} Extent of impervious surtace within the riparian area (Question 4) � <10% O 10% to 25% ❑ >25% � The reach is constricted by man-made features. � The orientation allows for shading of the water resource at midday in summer. Dominant vegetation layer within the riparian area: � Woody vegetation 0 Herbaceous vegetation ❑ Sare ground � Woody vegetation hangs over the edge of the water. �p Large woody debris in riparian area. Percent of water resource bordered by vegetated riparian area at least 30 feet wide: ❑ >40% � 10% to 40% ❑ <10% Degree of development or human cause disturbance: ❑ <25% ❑ 25% to 75% � >75% Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209 Urban Riparian Inventory and Assessment Project Number: 2995023 Project Name: Vernonia LWI Riparian Code: BC-R1 Riparian Function AssessmentAnswer Sheet � Water Quality Question 1: Question 2: Question 3: Question 4: Question 5: Total Points: 3 2 3 3 2 13 Flood Management Question 6: 3 Question 7: 1 Question 8: 1 Total Points: 5 Thermal Regulation Question 9: 3 Question 10: 2 Question 11: 2 Total Points: 7 Wildlife Habitat Question 12: Question 13: Question 14: Question 15: Question 16: Question 17: Question 18: Question 19: Total Points: 1 2 2 3 2 3 3 1 17 Function: � High ❑ Medium � Low Function: ❑ High � Medium ❑ Low Function: � High ❑ Medium ❑ Low Function: � High ❑ Medium ❑ Low Shapiro and Associates, Inc., 1650 N.W. Naito Parkway, Suite 302, Portland, Oregon 97209