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Home My WebLink AboutWetland Assessment 902231018 DISCOVERY BAY WETLANDS 1m WETLAND ASSESSMENT REPORT & CONCEPTUAL MITIGATIONPROPOSAL April 2007 f;. Prepared for: North Olympic Salmon Coalition PO Box 699 Port Townsend W A 98368 Prepared by: Pacific Rim Soil & Water, Inc. 1220 East Fourth Avenue Olympia W A 985()6~-. .-. ......~....._. ;Jrr OCT - 4 2007 PACIFIC RII\1 SOIL & WATER., INC. ~"~~f ~~~. LISA PALAZZI 1220 EAST FOURTH AVENUE OLYMPIA, W A 98506 "OICE:(360)-236-1899 FAX: (360)-236-7813 North Olympic Salmon Coalition Rebecca Benjamin, Project Manager PO Box 699 Port Townsend, WA 98368 April 6, 2007 Report File Number: Report Subject: Location: W06-0095 Wetland assessment report and conceptual wetland mitigation proposal. The study site is composed of two main study site areas (several legal parcels owned by WFDW). The North Site is an old abandoned lumber mill property, located at the southwest end of Discovery Bay, in Jefferson County, Washington. The South Site is located on agricultural land lying south of Highway 101 at the same location. The general area can be described as lying in or near Section 23, Township 29N, Range 2W. INTRODUCTION An onsite wetland assessment and associated delineation was carried out by Lisa Palazzi and Daniel Ufuar (wetland scientist) on December 14,2006, and December 20,2006, at the property described above, located at the south end of Discovery Bay, in Jefferson County, Washington. The purpose of this work is to provide infonnation to support a proposal to restore and create estuary wetlands, designed to provide habitat for native salmonid species that use the Salmon Creek drainage system. The property owner is the Washington Dept ofFish and Wildlife (WDFW); the project manager is the North Olympic Salmon Coalition (NOSe). Because there are activities proposed in wetlands, this work will require a JARP A review process, and is assumed to fall under a Nationwide 27 Pennit (stream and wetland restoration) unless the COB detennines otherwise. Please note that we provided an earlier preliminary draft report to provide details for the JARP A process. But this final draft of the wetlands report includes other infonnation about wetland conditions and infonnation that may be used to better manage to long-tenn project. OCT p~ WETLAND REGULATIONS The following overview of wetland regulations is provided for your general information. It is intended to provide a framework to help one be aware of situations of overlapping authority. Lo.cal Wetland Regulatio.ns: JetTerso.n Co.unty To qualifY as a regulated wetland in Jefferson County, an area must meet criteria defined in the Manual For Identifying and Delineating Wetlands adopted by the State Department of Ecology and written into state law pursuant to RCW 90.58.380 (i.e., the 1987 Army Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1, and all subsequent Regulatory Guidance Letters). Those criteria require that an area must 1) predominantly support wetland vegetation, 2) must have hydric soils, and 3) must have wetland hydrology characteristics defined for the onsite soil type - in this case, evidence or observation of a long-duration water table at 12 inches or less depth. All Category I wetlands, and Category n wetlands less than 2,500 square feet (approximately 0.05 acre), and Category ill and IV wetlands less than 10,000 square feet (about 1/4 acre) are not regulated by Jefferson County. That means that an area that meets the three-parameter definition as described in RCW 90.58.380 must also be larger than the minimum size to be regulated as a wetland by the county (there is no minimum size for federal regulations to apply). The wetland edge is located by evaluating the presence or absence of the three parameters, then flagged in the field, often for a subsequent survey, but sometimes just for purposes of onsite measurement. Once identified as jurisdictional wetland, the wetland is "rated" using the 1993 edition of the Western Washington Wetlands Rating System. The 1993 rating system combines a series of questions and a point system to determine the specific value of the individual wetland. Depending on site specific, pre-development wetland vegetation, soils, hydrology and buffer characteristics, the wetland has greater or lesser value and so is afforded varying levels of protection in the form of wetland butTers. The higher the rating and the higher the intensity of development, the greater the buffer, ranging from a minimum of 25 feet for low quality, small wetlands adjacent to low intensity development areas up to a maximum of 150 feet for the highest quality, or rare wetlands adjacent to high intensity development areas. The area within the wetland buffers is generally considered unavailable for development, unless there is no reasonable alternative to a proposed activity. Streams are Classified as to Type using the definition supplied in WAC 222-16-031 (as amended from WAC 222-16-030). According to the Jefferson County Critical Area Ordinance, Type 1 and 2 streams are given a 150-foot buffer; Type 3 and 4 streams, a 100-foot buffer, Type 5 streams, a 50-foot buffer. It is important to note that any stream wider than 2 feet with a gradient of less than 20 percent that drains to a Type 1, 2 or 3 stream may meet requirements to be classified as a Type 3 stream, even if it only has seasonal flow and there is no documented fish use. It is also important to note that man-made blockages to fish passage (such as a poorly installed culvert) are considered temporary, so will not affect stream typing. The area within the stream page 2 buffers is generally considered unavailable for development, unless there is no reasonable alternative to a proposed activity. Federal Regulatio.ns: Army Co.rps o.f Engineers Any direct impacts to a wetland are regulated by the Army Corps of Engineers (COE). The COE regulates wetlands of any size, i.e., there is no minimum size for a federal jurisdictional wetland. Furthermore, the COE must be notified of all impacts to wetlands. There are about 40 Nationwide Permits that define certain allowed impacts to wetlands. As a rule, the COE should be contacted and the proposed activity described. They will let the applicant know if one of the Nationwide Permits fits, or if no permit is required. If no permit is required, they will still require that a standard report be filled out and submitted that describes the activity in detail. A recent Supreme Court ruling determined that COE authority did not extend to isolated wetland systems, but rather those that are associated with streams or rivers -- i.e., potentially navigable waters defined as Waters of the United States. Under those circumstances, ifa site has what appears to be an isolated wetland, a representative from the COE will make an onsite determination on whether that wetland meets the definition of "isolated". If the COE is not notified of a wetland impact prior to the event, the action may be treated as a violation of federal law. Impacts of 0.1 to 2 acres are typically regulated under one of the Nationwide Permits with concurrent permit review by the COE and the Washington State Department of Ecology. If the impact falls within the allowed impact definition ofa Nationwide Permit, the action will be allowed as long as all the details of the permit are carried out as described. Impacts not covered by one of the Nationwide Permits will require an individual permit. Under that condition, a detailed assessment of the project will be required, including an alternatives analysis and detailed justification of the proposed impacts with no guarantee of permission to perform the proposed activity. In response to recent listings of some salmonid species in the Puget Sound, a Biological Assessment will also be required as part of the COE permitting process. The Biological Assessment is a detailed report describing whether there are any endangered species on or near the site and the potential impacts of the project on those species. If the report indicates an impact on endangered species, additional work will be needed to obtain even a Nationwide Permit. That work would involve making changes to the project proposal that would eliminate or at least reduce those impacts. Other Regulato.ry State Agencies Other potentially involved agencies include (but are not limited to) the Washington State Department ofFish and Wildlife (WDFW), and the Washington State Department of Natural Resources (DNR) Natural Heritage Program. The WDFW will be involved if there are any wetland or stream crossings .that would require a Hydraulics Permit (a permit that defines how the crossing will be completed to minimize impacts to resident fish and other species), or if there are any endangered or threatened animal species in or near the wetlands or the rIJroject;sit~--"I'he"PNR.__.._---"-"\ , , ~ag<f,(J... - ,'t . Natural Heritage Program will be involved if there are any endangered or threatened plant species in or near the wetlands or the project site. MEmODS AND MATERIALS Office Research The Jefferson County Soil Survey was consulted to determine how local soils are mapped. The Puget Sound LiDAR consortium maps were evaluated to determine how terrain across the greater landscape around the project area might affect site hydrology, and to evaluate potential past surface landscapes. The Cowardin Classification of Wetlands and Deepwater Habitats of the United States (1979) was consulted to help properly classifY onsite wetland systems. Field Research Wetland edges were delineated using methods described in the Manual For Identifying and Delineating Wetlands adopted by the State Department of Ecology and written into state law pursuant to RCW 90.58.380 (Le., the 1987 Army Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1, and all subsequent Regulatory Guidance Letters). The manual requires examination of characteristics and indicators ofhydrophytic vegetation, hydric soils, and wetland hydrology. Positive wetland indicators of all three characteristics must be normally present to make a positive wetland determination. The method used to evaluate each characteristic is summarized in Appendix I. Data at selected points were recorded on the Routine Wetland Determination Data Form 1 (presented in Appendix ll). The wetlands were rated using the methods described in the 1993 edition of the Washington State Wetland Rating System for Western Washington. RESULTS AND DISCUSSION Site Description The study site (approximately 30-50 acres) encompasses an old lumber mill property! (North Site) and some agricu1turallands (South Site) owned by the Washington State Department ofFish and Wtldlife (WDFW) at the south end of Discovery Bay, in Jefferson County, Washington (in or near Section 23, Township 29N, Range 2W) (vicinity map, Appendix IV). Site Descriptio.n and Evaluatio.n of Field Co.nditions The ~50-acre study site lies on both sides of Highway 101 at the south end of Discovery Bay, in Jefferson County, Washington. For purposes of discussion, the study area is broken into to subareas: North Site (areas lying north of Highway 101) and South Site (areas lying south of Highway 101). 1 It is our understanding that the lumber mill portion of the project area was only active for about ten years, and bas been abandoned since the 19608. page 4 North Site The North Site has a brackish Estuarine, Intertidal, Emergent (EIE) wetland, some Estuarine and Marine, Sub-Tidal, Un-co!lsolidated Bottom (ESU and MSU) wetlands, as well as freshwater Palustrine Scrub/Shrub- Palustrine Forested (pSSIPFO) wetlands. From the use as an old lumber mill site, there was :fill on top of what had previously been estuary/marine wetland surfaces - both sub-tidal and intertidal types. It also appears that there may have been some freshwater wetlands filled as well on what was the original supra-tidal terrace to the west. The current PSSIPFO wetland system appears to have a hydrology that results :from seasonal stormwater runoff being trapped and channeled by the fill. So we suggest that some of the current freshwater wetland has possibly expanded relative to the pre-fill condition. In addition, there is an old railroad grade running around the western edge of the study site ( damming effect), as well as an offsite fill area southwest of the study site parcel. So most of the current estuary and freshwater wetland boundary is an artificial toeslope of fill edge. It is assumed that several acres of wetland were :filled to create the current surface. It is proposed to remove all fill and restore the site to something comparable to the original wetland! estuary condition. Based on old aerial photo records (photo from circa 1950 provided by NOSC), about 2/3rds of the original EIB (Estuary, Intertidal, Emergent) surface in this southwestern portion of Discovery Bay has been filled (including offsite areas to the southwest). About half of the EIB fill lies within the project boundaries and about half outside. The off site fill area is now a parking lot for a business located southwest of the study area along Highway 101. More than half of the onsite fill (in the EIE) is composed of old sawdust - a pile that was described as having once been more than 20 feet high (up to 40 feet high), but is now only about 2-3 feet higher than the adjacent intertidal estuary surface. About half of the sawdust pile is covered with young volunteer forest tree and shrub species. In the northern portions of that sawdust fill area, there is a deep hole of unknown dimensions that is currently filled with saturated sawdust to about 9 feet depth (about 7.5 feet below what we estimate to be the original estuary surface elevation at that location.). More work may be necessary during dryer summer months to adequately define that area and its potential impact on the restoration project. It is our understanding that recent hand-borings in that area and other areas to the north have also indicated sawdust and gravel fills in what appears to have been a depressional freshwater system. (personal communication, Bob Barnard, WDFW) There is no clear indication of such a system on the old photos, but it is certainly possible in this setting. We have observed similar peat and muck capped freshwater wetlands on low terraces adjacent to saltwater along the west side of the Hood Canal and farther south on similar geomorphic surfaces. These terrace wetland systems appear to fonn as a result of seasonal groundwater seeping out across the terraces from adjacent steep slopes areas that are underlain by glacial till or similar impermeable substrates. Structural fill was also placed in an area along the northeastern edge of the study site. The fill was placed in Sub-tidal Marine and Estuarine areas in order to provide a solid surface to build page 5 several single-story wood frame structures (storage sheds, maintenance shed, and possibly dormitories) that supported the mill activities. This fill was dominantly an extremely gravelly loamy sand material that we assume came from a nearby gravel pit (the fill was mostly clean with no appreciable coarse organic debris inclusions), but in some area was mixed with layers of sawdust waste from onsite mill activities. It should be noted that recent research carried out by Dr. Joel Elliot (University of Washington) in the Tacoma area indicates that sawdust waste in marine areas often result in growth ofBeggiatoa bacteria (an anaerobic bacteria). High levels of hydrogen sulfide gas are given off during Beggiatoa's anaerobic respiration; anaerobes utilize materials other than 02 as electron acceptors during respiration, and Beggiatoa uses hydrogen sulfide compounds available from the wood wastes. This results in release of highly acidic sulfide compounds that have a negative effect on growth of eelgrass beds2 and we may presume, other types of marine or estuary vegetation. We provided a copy of Dr. Elliott's article with the previously provided soils investigation report, and we recommend that this issue be taken into account when deciding what to do about the onsite sawdust wastes. The information contained in that article suggests that complete removal of the sawdust may be vital if a normal suite of estuary plant species is desired. Other information from other sources and wetland scientists corroborates this indication. The onsite freshwater wetland (pSS/PFO) is an extension of a system that lies between the study site and Highway 101, developed from trapped seasonal stormwater surface runoff and groundwater contributions along the northwestern edge of the study area. It is likely to be a remnant of the buried system mentioned previously that appears to have been at least partially filled during milling activities. That freshwater wetland flows into the remnant estuary wetland in about the west-central portion of the North Site. It is our understanding that there is another small isolated depressional wetland area slightly north of this one that lies in the dense vegetation west of the northern building that was not formally delineated during this work (west of Pit 2). South Site The South Site encompasses all areas south of Highway 101, including a recently restored section of Salmon Creek, and associated wetlands and uplands to the west and east. For purposes of this discussion, we will call the area west of Salmon Creek "Western Subarea", and the area east of Salmon Creek "Eastern Subarea". It is proposed to enhance salmonid habitat in the South Site by creating estuary habitat in the Eastern Subarea, and using upland portions of the Western Subarea to receive soils excavated from the Eastern Subarea during the estuary creation process. It is our understanding that there is tidal influence up the creek for several hundred feet south of the bridge at Highway 101 as well as up side ditches that run parallel to the highway fill pads to 2 Elliot, Joel K., Erin Spear, sandy Wylie-Echeverria, 2006, "Mats of Beggiatoa bacteria reveal that organic pollution from lumber mills inhibits growth of Zostera marina", Marine Ecology 27 (2006) page 6 the east. From our onsite observations, salt influenced vegetation adjacent to and outside of the main creek channel is restricted to a small shallow flood terrace extending only about 200 feet south of the bridge at Highway 101. So the tidal influence farther upstream appears to be restricted to the incised stream or ditch channels; any overflow events are not significant enough to change the vegetation community to salt-tolerant species. However, that is not to say that this has been the long-term condition. Salmon Creek (and Snow Creek) has been subjected to over 100 years of management with farm activities on both sides of the creek. There is ample evidence in the aerial and LiDAR photos of extensive ditching and draining, as well as realignment of stream channel(s). So the pre-development Salmon Creek (and Snow Creek) channel would have been shallower, more braided, and would have periodically meandered back and forth across the southern flood plain. Most important, salt-water influence on the upstream vegetation communities from tidal flushing would have been more extensive. Currently, the wetlands south of Highway 101 are predominantly freshwater systems. However, as stated above, they are expected to have had a much greater percentage coverage of estuary in a pre-agricultural, pre-logging natural state. And it should be noted that soil profiles that were described during parallel soils investigations for this project showed clearly that the entire Eastern Subarea pasture is underlain by old estuarine marine sediments at about 3-4 feet depth, buried below silty, post-glacial flood deposits from the Snow and Salmon Creek systems. So despite the current condition, this area clearly served as estuary in the past at various times. The Eastern Subarea wetlands are currently, for the most part, managed as mowed pasture. The western portions are slightly better drained, supporting a wet pasture-grass vegetation community. The western portion is a wetland complex that also includes about 20% small upland islands - slight ridges and rises that may be old road fills or scars from clearing or past agricultural activities. The eastern portion has shallower hydrology that appears to be dammed to some degree by a small dirt road that runs across the wetland from north to south. East of the road, despite the surface elevation being almost identical, the wetland hydrology is within a inch or two of the surface compared to about 12 inches average west ofthe road. And the eastern vegetation community is about 90% soft rush and sedges while the western is pasture grasses. This appears to suggest that at least some of the hydrology source for this wetland is horizontal groundwater flow from the southeast. Close examination ofLiDAR image of the area shows a meandering channel scar that crosses the farm field south of the study site from the Snow Creek drainage to the Salmon Creek drainage. This suggests that the two creeks were at least partially merged farther south in the past, and were realigned and split to open up more farmlands to the south. The Western Subarea wetlands (west of Salmon Creek) are greatly influenced by sideslope seeps and shallow subsurface flow from the northwest. A deeply incised stream channel crosses the upper slope just below Uncas Road to the west. That water drains northeast, eventually merging at the toeslope with wetlands across the bottomlands west of Salmon Creek. In addition to that hydrology, there are many sideslope seeps emanating from the upper slopes around an old farmstead. The people that built the house and the barns (50-100 years ago) first created flat fill pa~ pads, and installed drains all around the pads to redirect the seeps. But there are still several small wetland areas high on the slope - one on a bench near the incised creek channel north of the barn, with hydrology at least 10 feet higher in elevation than the barn floor or the flowing water in the creek; one at the southeast comer of the barn (with water actually ponding under that portion of the barn), and a sideslope ditch draining south then east around the upper edge of a fill pad for a more recently built metal shed south of the old wooden barn. Most of that water disappears into deeper, more gravelly soils that lie downslope, then it surfaces again at the toeslope,in wetlands near a side channel that drains to Salmon Creek. As a result, there is a broad mild sideslope that is not wetland, but is surrounded on three sides by wetland. The western wetlands are actually upslope, while those to the north and east are downslope hydrologically. It is proposed to use the non-wetland sideslope (currently a grassed pasture) as a receiving area for soils removed from the proposed estuary creation area in the Eastern Subarea. A temporary road will be built to ensure a stable pathway for dump trucks. That temporary road will result in 8,280 sqft (0.19 acres) of temporary fill in a low quality Palustrine Emergent (pEM) wetland on the upper slope. But once the project is complete, the fill will be removed, and the PEM wetland will be restored to a condition equivalent or better than the pre-impact condition. Please note that the non-wetland sideslope soils are expected to have shallow seasonal groundwater that can create soft spots and/or unstable surfaces. . So it is recommended to restrict road construction and dumping to the dryer summer months. So.ils A copy of the local soils map (Jefferson County Soil Survey) is provided below. Please note that the Jefferson County Soil Survey was a lower level survey project, in that the map units are rather large and have more inclusions than is standard for higher level soil surveys. For that reason, the soil mapping is less precise, and sometimes in error. In general, this soil map indicates that there are three hydric soils3 mapped in the area, the Lummi silt loams (Lu), the Mukilteo/ McMurray peats (Mm) and the Belfast silt loam, heavy variant (Bh). · Lummi silt loam (Lu): These soils are mapped in the tideflat areas of the North Site as well as in the area targeted for estuarine creation on the South Site. The Lummi series consists of deep, poorly drained soils that formed in marine sediments and alluvium. These soils are on flood plains and have slopes of 0 to 3 percent. · Mukilteo and McMurray peats (Mm.): These soils are mapped at the northern end of the Western Subarea (South Site). The McMurray series consists of deep, very poorly drained soils formed in partially decomposed woody and herbaceous organic material. They are in depressional areas on glacial till plains and outwash plains or in abandoned glacial stream channels. The Mukilteo series consists of deep, very poorly drained soils formed in deep organic deposits. Mukilteo soils are mainly in depressional areas on glacial uplands. Some are 3 Defined as soils officially listed as hydric soils on the Washington State Hydric Soils List. page 8 in river valleys. · Belfast silt loam (Bh): These soils are mapped across the floodplain bottomIands on both sides of Salmon Creek. The Belfast series consists of deep, moderately wen drained soils that formed in stratified alluvium. Belfast soils are on nearly level flood plains. In addition, other soils with shallow seasonal water tables are mapped on the study site, and often these map units have wetland inclusions. · Swantown gravelly loam, 0-8% slopes (SuB): These soils are mapped across the western sideslope (the proposed dumping area). The Swantown series consists of moderately deep to a cemented pan, somewhat poorly drained soils formed in glacial till on till plains, and is described as having seasonal water table as shallow as ~ to 1 ft. But since that water typically drains fast between storms, the Swantown soils are not considered hydric (the water does not persist for more than two weeks at a time). · Clallam gravelly sandy loam, 0-15% slopes(CmC): This soil is mapped farther upslope to the west of the South Site, and is also expected to have shallow seasonal water at 2-4 feet depth. The Clallam series consists of moderately deep to densic (compacted) materials, moderately well drained soils formed in glacial till over very compact glacial till. · Hoypus gravelly sandy loam, 0-15% slopes (HvC): This soil is mapped farther upslope to the west of the North Site. There are often gravel pits in this soil type, so it is presumed to be the source of the coarse-textured :fills observed in the North site. The Hoypus series consists of very deep, somewhat excessively drained soils that formed in glacial outwash. Map Unit AgE AlC AID AmC BdD Bh CtD CmC CmD Cu EvC HuC HuD HvC Lu Mm SuB Td TuC W Map Unit Name Agnew silt loam, 30 to 50 percent slopes Alderwood gravelly sandy loam, 0 to 15 percent slopes Alderwood gravelly sandy loam, 15 to 30 percent slopes Alderwood gravelly loam, 0 to 15 percent slopes Beausite-Alderwood complex, 0 to 30 percent slopes Belfast silt loam, heavy variant Cassolary sandy loam, 15 to 30 percent slopes Clallam gravelly sandy loam, 0 to 15 percent slopes Clallam gravelly sandy loam, 15 to 30 percent slopes Cut and fill land Everett gravelly sandy loam, 0 to 15 percent slopes Hoypus gravelly loamy sand, 0 to 15 percent slopes Hoypus gravelly loamy sand, 15 to 30 percent slopes Hoypus gravelly sandy loam, 0 to 15 percent slopes Lummi silt loam McMurray and Mukilteo peats Swan town gravelly loam, 0 to 8 percent slopes Tidal marsh Tukey gravelly loam, 0 to 15 percent slopes Water page 10 Wetland Veeetatio.n: No.rth Site The estuary wetlands were dominated by salt-tolerant grasses. . A species list for the estuary portions of the system was prepared by Dr. Fred Weinman, an estuary vegetation specialist ./ working etifeet1r foe ta~ }ID~C 8f9~. We provide that list with the Data Forms in Appendix II since it will supplement that information. It is a complete list rather than just dominant species. The PSS/PFO freshwater wetlands were a mixture of shrub, tree and emergent vegetation - mostly typical of disturbed conditions, and many volunteers with seed source apparently escaped from lumber mill activities. The PSS community was dominated by red alder and willow species. Buffer areas included Douglas-fir, salal, sword fern and Himalayan blackberry. A list of dominant onsite vegetation has been included below. Wetland Vegetatio.n Species List Trees Alnus rubra (red alder) FAC Thuja plicata (western redcedar) F AC Picea sitchensis (Sitka spruce) FAC Salix species Shrubs Alnus rubra (red alder) F AC Rosa spp F AC-F ACU Rubus spectabilis (salmonberry) FAC Grasses. forbs. vines and ferns Carex obnupta (slough sedge) OBL Phalaris arundinacea (reed canarygrass) FACW Juncus effusus (soft rush) FACW+ Equisetum arvense (field horsetail) F AC Upland Vegetatio.n Species List Trees Pseudotsuga menziesii (Douglas-fir) F ACU Alnus rubra (red alder) F AC Thuja plicata (western redcedar) F AC Shrubs Corylus cornuta (beaked hazelnut) FACU Rubus discolor (Himalayan blackberry) FACU Cytisus scoparius (Scot's broom) NI Gaultheria shallon (salal) F ACU Rosa spp F AC-F ACU p~ Grasses. forbs. vines and ferns Juncus e.ffusus (soft rush) FACW+ Equisetum arvense (field horsetail) F AC Wetland Vegetatio.n: So.uth Site The dominant vegetation in the Eastern Subarea (proposed for estuary creation) is wet-tolerant planted pasture grasses (palustrine Emergent vegetation). There are minor areas along stream channels that are dominated by wet-tolerant shrubs, and no forested areas. The wetlands in the Western Subarea are also mostly Palustrine Emergent, and dominated by wet- tolerant pasture grasses. But there are broader areas of Palustrine Scrub Shrub wetlands along the swales and drainage features in the bottomlands. And we observed that the previously grass- dominated areas along that Palustrine Scrub-Shrub toeslope swale have already been planted with a variety of wet-tolerant native species - we presume as part of the ongoing Salmon Creek restoration project. Most of these plants had not leafed out when we were in the field, but they appeared to include at least some red osier dogwood and a variety of willow species. Still- non- native planted pasture mix grasslands dominate these wetlands as well. So we do not provide a species list of the pasture grasses. Hydro.lo.gy: No.rth Site The source of the hydrology for the estuary_we~ds is mostlyfi"om tidal fluctuation, although there are some freshwater inputs from the:.oQsit~.~olJ!l,"W~~r runoff':and groundwater influenced wetlands as well as influences from mixing of waters from SaImotfCreek and salt water at high tide. We should note that there were areas within the sawdust pile zone where water is trapped or dammed in depressions in the sawdust higher than the natural water table found outside of the sawdust area. In a couple of these zones, we augered down and found a dry layer in the sawdust below overlying a deeper water table that appeared to be the true water table expression. For that reason, we considered the hydrology in the small trapped or dammed depressions to be artificial since the water table would not be at that elevation without the sawdust pile, which is a :fill. Hydro.lo.gy: South Site As was discussed previously, the dominant hydrology at this point is from seasonally infiltrating precipitation and groundwater flow from the southeastern floodplains and sideslope seeps from the west and northwest. Wetland Ratings Results To rate the wetlands, we first break the systems up into the rating units, which in general are areas that share a common hydrology. Using the rules and guidance provided in the 1993 Western Washington Wetland Ratings manual, we defined the Rating Units (displayed on project map in the Appendices) and provide results of the rating analysis in a Table below: page 12 Rating Unit 1: Estuary wetlands at the North Site, which include all of the onsite estuary and as well as the off site estuary areas on both the western and the eastern sides of the Salmon Creek and Snow Creek outlets north of Highway 101. These wetlands are classified as brackish Estuarine, Intertidal, Emergent (EIE) wetland, and also include some Estuarine and Marine, Sub- Tidal, Un-consolidated Bottom (ESU and MSU) wetlands. And of course they are directly associated with Deep-water Marine systems in Discovery Bay and beyond to the north. Rating Unit 2: Freshwater wetlands at the North Site, which include all of the Palustrine Scrub/Shrub and Palustrine Forested (pSS/PFO) wetlands that are trapped by fills in the northern portion of the site. Rating Unit 3: Freshwater wetlands on the eastern side of Salmon Creek at the South Site, south of Highway 101. These wetlands include the wet pasture lands (palustrine Emergent wetlands) that lie south of the row of buildings on fill, south of Highway 101. This wetland system extends many acres offsite to the south, and may include other wetland classes, but we limited this rating to an assessment of the dominantly Palustrine Emergent (PEM) system that also has inclusions of Palustrine Scrub-Shrub (PSS), mostly lining the creek channels. Rating Unit 4: Freshwater wetlands on the western side of Salmon Creek at the South Site, south of Highway 101. These wetlands include the wet bottomlands (pEM) along Salmon Creek and adjacent feeder channels (pEM/PSS) from the west and southwest. This wetland rating unit lies north and east of the targeted upland spoils site, west of the creek system, and also extends along the creek and its feeder systems for many acres off site to the south. In offsite areas, it may include other wetland classes, but we limited this rating to an assessment of the dominantly Palustrine Emergent system that had inclusions of Palustrine Scrub-Shrub, mostly lining the creek channels. Rating Unit 5: Freshwater PEM wetland (slightly less than 1/4 acre) upslope and west of the spoils site and north of the barn. This is a small isolated wetland that is formed from a sideslope seep, and does not have a surface connection to the other onsite systems. At its downslope edge, the water drains to deeper soils. It is assumed that water drains horizontally downslope below the spoils pile area. Because it is less than 1/4 acre. it is not regulated bv Jefferson County. so is note rated and has no buffer. However, it is still protected from direct impacts by federal law, so must be avoided if at all possible. Rating Unit 6: Freshwater PEM wetland (approx. 1/8 acre) on the upper slope -- upslope and west of the spoils site and partly underneath the southeast comer of the barn. This is a very small wetland that is formed from a sideslope seep. The overflow from this system drains east in a small ditch that runs along the north farm road. It eventually drains to the Rating Unit #4 toeslope wetland system, but is more than 100 feet away, so is considered a separate system for purposes of rating. Because it is less than 1/4 acre. it is not regulated bv Jefferson County. so is note rated and has no buffer. However, it is still protected from direct impacts by K~g~~1a~:.- .... must be avoided if at all possible. W'."---< .'.' '.~./ ". ('T. p~ml. U v I ""0- Li':'r Table 1. Results of the wetlands rating analysis (forms in Appendix ill). Wetland Rating Wetland Standard Primaty Reason for Category Rating or Score Result Rating score Category Buffer (ft) Unit RUl NA I 150 Estuary system greater than 5 acres, automatically Category I RU2 28 II 100 Connection to Estuary system (RU1) and associated salmon habitat RU3 27 II 100 Large size; two classes; connections to other upland and wetland systems RU4 26 II 100 Large size; two classes; connections to other upland and wetland systems RU5 NN IV NA Not regulated by Jefferson County due to being less than 1/4 acre. Cat IV system due to being small, hydrologically isolated, and dominated by reed canarygrass RU6 NN ill NA Not regulated by Jefferson County due to being less than 1/4 acre. Very low score and very low quality wetland, but not hydrologically isolated, so Cat ill system. To summarize the table above, the larger systems (RUI-RU4) are either Category I or II systems, which have buffers of 150 feet and 100 feet respectively. The smaller systems (RU5 and RU6) are less than 1/4 acre, so are not regulated by Jefferson County, and have no buffers. The buffers on RUI-RU4 may be reduced, increased or averaged as is defined below (italicized text taken directly from the Jefferson County Critical Areas Ordinance). However, at this point, there is no proposal to change the standard buffer. In fact, since this is a wetland enhancement /creation project, it may be assumed that the buffer functions and vegetation cover will improve overall by the end of the project. U(5)Buffers - Standard Requirements. The following buffer provisions shall apply: a) Buffer areas shall be required to provide sufficient separation between the designated wetland and the adjacent proposed project. b) The appropriate width of the wetland buffer shall be determined by either: application of the standard buffer widths set forth below in Table 3-4; or by variations 4 This wetland qualifies as a Category IV system. (isolated and dominated by reed canarygrass); it is less than 1/4 acre, so is not regulated by Jefferson County - so has no buffer. However, itis still protected under federal law, so direct impacts must be avoided ifpossible. 5 This wetland qualifies as a Category ill system (not hydrologically isolated); it is less than 1/4 acre, so is not regulated by Jefferson County - so has no buffer. However, it is still protected under federal law, so direct impacts must be avoided if possible. page 14 to the standard buffers as allowed in subsections (6), (7) and (8) of this section. c) Buffers shall remain naturally vegetated except where the vegetation has been disturbed, invaded by highly undesirable species (e.g., noxious weeds), or would substantially benefit from the increased diversity of introduced species. Where buffer disturbance has occurred during construction, replanting with native vegetation shall be required Minor pruning of vegetation to enhance views and removal of undesirable species (e.g., alders) may be permitted by the administrator on a case-by-case basis. d) All buffers shall be measured perpendicularly from the wetland boundary as surveyed in the field e) Standard wetland buffer widths shall be as established in Table 3-4. Table 3-4. Standard Buffer Widths for Wetlands Wetland Category 11 II III IV Standard Buffer Width 50 feet 100 feet 50feet 25 feet (6) Reducing Buffer Widths. The administrator may reduce the standard wetland buffer widths, when the project applicant demonstrates both of the following to the satisfaction of the administrator: a) Standard wetland buffer width averaging as set forth in this article is unfeasible. b) The project application includes a buffer enhancement plan using native vegetation which substantiates that an enhanced buffer will improve the functional attributes of the buffer to provide additional protection for functions and values. (7) Increasing Buffer Widths. The administrator may increase the standard wetland buffer widths when a larger buffer is necessary to protect wetland functions and values based on local conditions. This determination shall be made only when the department demonstrates anyone of the following through appropriate documentation: a) A larger buffer is necessary to maintain viable populations of existing species. b) The wetland is used by species listed by the Washington State Department of Wildlife as endangered, threatened, or sensitive, or has documented priority species or habitats or essential or outstanding potential habitat for those species, or has unusual nesting or resting sites (e.g., heron rookeries and raptor nesting trees). c) The adjacent land is susceptible to severe landslide or erosion, and erosion control measures will not effectively prevent adverse wetland impacts. d) The adjacent land has minimal vegetative cover or slopes greater than 45 percent. (8)Averaging Buffer Widths. The administrator may modify the standard wetland buffer widths set forth in this section by averaging. Buffer width averaging shall be allowed only when an individual or firm meeting the criteria of JCC 18.15.400(2) demonstrates all of the following to the satisfaction of the administrator: a) Width averaging will not adversely impact the wetland functionqf:vt#ttt!S;;-n-.--...-.---- r page l~ ",- L>. b) The total area contained within the wetland buffer after averaging is not less than that contained within the standard buffer prior to averaging; c) The standard buffer width has not been reduced by more than 25 percent. lOrd 8-06 91J" Pro.po.sed Impacts This is a large, long-term chum salmon (and other associated species) habitat restoration project. There will be no permanent fill in wetlands, but a great deal of work will be carried out re- contouring surfaces and rebuilding tidewater pathways, the result of which will be to create more . wetland acreage. The Department ofFish and Wildlife engineers are designing the project, and some aspects of the project are still very much in flux. However, at this point, according to data provided by WDFW staff: it is proposed to carry out the following (please refer to plan maps in the Appendices for details): N o.rth Site: To.tal area o.f disturbance: 183,780 sf (Most of this is currently filled area that will be restored as wetland) Area of disturbance in wetlands 34,660 sf(0.8 acres) (No fill-- wetland restoration, including tidal channels and revegetation) So.uth Site (Eastern Subarea): Total area o.f disturbance: 311,100 sf (7.14 acres) (All wetland acreage - surface elevation lowered to create estuarine habitat wetlands system) South Site (Western Subarea) Area for fill placement and road: 131,950 sf (Not within wetlands) Area of temporary road fill in wetland 8,280 sf (0. 19 acres) (Fill will be removed and the wetland will be restored after project is complete) To.taI area o.f disturbance: 140,230 sf Additional details on the planned wetland enhancement project can be obtained from WFDW staff engineers. I hope this report provides enough information to proceed with project planning. Please call if you have any questions or require additional detail or clarification on any of these issues. . soill2~1 Lisa Palazzi, CWS C:~~' ~ SWS Certified Wetland Scientist SSSA Certified Prof. Soil Scientist page 16 _APPENDIX I METHODS I I APPENDIX I DETAILS ON HOW TIffi 1HREE PARAMETERS -- HYDROPHYTIC VEGETATION, HYDRIC SOILS AND WElLAND HYDROLOGY -- ARE EVALUATED IN TIffi FIELD. Vegetatio.n Hydrophytic vegetation is defined as "the sum total of maCfophytic plant life growing in water or on a substrate that is at least periodically deficient in oxygen as a result of excessive water content" (Washington Department of Ecology 1997). Several indicators may be used to determine whether hydrophytic vegetation is present on a site. The most reliable indicator is when more than 50% of the dominant plant species are classified as wetland plants on a certain list of species that occur in wetlands; the list is maintained by the U.S. Fish & Wtldlife Service (Reed 1988, with a 1993 update provided for the northwest United States). The species list separates vascular plant species into five basic groups based on their wetland indicator status -- Obligate (OBL), Facultative Wetland (FACW), Facultative (FAC), Facultative Upland (FACU), and Upland (UPL). The plant species indicator status is based on an assessment of the individual species' frequency of occurrence in a wetland. The three wetter facultative (OBL, F ACW, and F AC) categories are further subdivided by"+" and "-" (i.e., F AC+, F AC and F AC- ) modifiers with the "+" modifier indicating that a species is tolerant of wetter conditions within that group, and the "-" modifier indicating that a species is less tolerant of wet conditions within that group (Reed 1988 and 1993). Table 1 below summarizes the indicator status ratings. Tabl 1 PI Ind. e . ant Icator tatus ate20.rles Indicato.r Catego.ry/Indicato.r Defmition Symbol Obligate Wetland Plants (OBL) Plants that occur almost always in wetlands: estimated probability in wetlands greater than 99% under natural conditions. Facultative Wetland Plants Plants that have an estimated probability of 67% - (F ACW) 99% to be found in wetlands. Facultative Plants (F AC) Plants that are equally likely to occur in wetlands or non-wetlands: estimated probability of34%- 66% to be found in wetlands. Facultative Upland Plants (F ACU) Plants that usually occur in non-wetlands, estimated probability of 1 % - 33% to be found in wetlands. Obligate Upland Plants (UPL) Plants that occur almost always in non-wetlands under natural conditions, estimated probability greater that 99%. S C page 17 Other indicators of hydrophytic vegetation include visual observation of plant species growing in areas of prolonged inundation and/or soil saturation, morphological adaptations, technical literature, botanical journals, technical reports, wetland plant database, physiological adaptations, and reproductive adaptations. Plant species are identified using Flora of the Pacific Northwest (Hitchcock and Cronquist 1973). Plant communities were classified using a system developed by the United States Fish and Wildlife Service (Cowardin et al. 1979). This system is hierarchical and structured around biological, hydrological, and substrate characteristics. So.ils A soil profile was examined at each plot using a 6-inch soil auger and/or tile spade. Soils were sampled to a depth of24 inches. When using the 1987 methodology, the soil is observed for hydric soil indicators immediately below the A-horizon or 10 inches which ever was shallower. Hydric indicators for non-sandy soils include at a minimum, one or more of the following, generally within 12 inches of the soil surface: · organic soils (Histosols), · histic epipedons, · sulfidic material, · aquic or peraquic moisture regimes (i.e. two weeks of continuous inundation or saturation), · reducing soil conditions, and · soil colors; gleyed soils or nongleyed soils with a matrix chroma of 2 or less in mottled soils or a matrix chroma of 1 or less in unmottled soils.6 Soil chroma, or color, was determined using a Munsell color chart (Kollmorgen Corporation 1975). In addition, we used the most recent version ofField Indicators of Hydric Soils, which provides detailed descriptions of specific soil morphologic features that indicate long-duration saturation. Onsite soil characteristics were compared to Natural Resource Conservation Service (NRCS) descriptions of the mapped soils to either confirm the mapping or determine if an inclusion of another soil type is present. When using the 1987 Routine Methodology, hydric soils are assumed to be present in any plant community in which all dominant species have an indicator status of OBL or, all dominant species have an indicator status of OBL or F ACW, and wetland hydrology is present. Hydro.lo.gy Wetland hydrology is defined as areas that are periodically inundated or have soils that are saturated to the surface for a sufficient duration during the growing season. Indicators of wetland hydrology are difficult to interpret in the field during the dry season or the rainy winter season as a water table may be non-existent during the dry season, or higher than average for some periods 6 Mottles or redoximorpbic features are spots or blotches of contrasting color occurri.Ilgwi,fhill.:tbesoiL matrix. Gleyed soils are predominantly neutral gray in color. page 18 OCT - 4 (jLr during the rainy season. The 1987 COE manual lists field indicators of wetland hydrology that may provide evidence of recent and/or long-term hydrology events. The indicators are listed in order of decreasing reliability. They include recorded data and field data, such as visual observation of inundation or saturation, watermarks, drift lines, sediment deposits, and drainage patterns. Duration of inundation and/or soil saturation for th~ COE 1987 method is based on the number of days at 32 degrees Fahrenheit or above during the growing season. For the Pacific Northwest, inundation or saturation to the surface for at least 12.5% or greater of the growing season in most years is required. The Seattle District of the COE requires two weeks of continuous soil inundation or saturation within the growing season to satisfy wetland hydrology. The latter criterion was used for this determination. page 19 APPENDIX II DATA SHEETS The list below is of species identified in the salt-water affected portions of the Discovery Bayl Salmon Creek no\" project study area by Fred Weinman (COE). It does not describe which species are dominant, but does show ~"'('\~\e whether they occur in the high salt marsh (hsm), low salt marsh (Ism) or salt-water shoreline zones, and in some ...} cases also freshwater (fw) and railroad grade (rr) and riparian (rip) areas. '0Q-I:- <s,~o.u~ ~ ~tcl~~ Loc. ~\ \eb anon . i .,},..,.., ~iZ(-'{ Scientific Name Angelica lucida Asparagus officina1is Aster subspicatus Atriplex prostrata Carex lyngbyei Chenopodium album Deschampsia cespitosa Disticblis spicata Festuca rubra var. littoralis Glaux maritima Grindelia integrifolia Hordeum brachyantherom Juncus balticus Juncus effiJsus var. pacificus Juncus gerardii Plantago maritima Potentilla anserina Salicornia virginica Scirpus acutus Scirpus maritimus Stellaria humifusa Triglochin maritima Common name Sea watch Asparagus Saltmarsh aster Fat hen Lyngbey's sedge Lambsquarters Tufted hairgrass Saltgrass Salt marsh fescue Sea milkwort Beach gumweed Meadow barley Baltic rush Soft rush Mud rush Salt marsh plantain Pacific silverweed American glasswort Hard-stem bulrush Salt marsh bulrush Salt marsh starwort Seaside arrowgrass Family Apiaceae Liliaceae Asteraceae Chenopodiaceae Cyperaceae Chenopodiaceae Poaceae Poaceae Poaceae Primulaceae Asteraceae Poaceae Juncaceae Juncaceae Juncaceae Plantaginaceae Rosaceae Chenopodiaceae Cyperaceae Cyperaceae Caryophyllaceae Juncaginaceae Origin N I N I N I N N N N N N N N I N N N N N N N hsm hsm hsm hsm hsm.lsm rr,hsm hsm hsm,lsm hsm hsm rr,hsm hsm hsm hsm hsm hsm,lsm hsm,rip,fw hsm,lsm salt water shoreline salt water shoreline Ism hsm,lsm Salmon Creek (9/23/04) by Fred Weinmann sm=salt marsh hsm=high salt marsh lsm.=low salt marsh rr=railroad grade rip=riparian Scientific Name Common name Family Origin Location Abies grandis Grand fir Pinaceae N IT Acer macrophyllum Bigleaf maple Aceraceae N Achillea miUefolium Yarrow Asteraceae N IT Agrostis capillaris Colonial bentgrass Poaceae I IT,pasture Agrostis stolonifera Creeping bentgrass Poaceae I hsm,IT Aira praecox Elegant hairgrass Poaceae I IT Alnus rubra Red Alder Betulaceae N rip Alopecurns pratensis Meadow foxtail Poaceae I pasture Ambrosia chamissonis Silver burweed Asteraceae N sandy shores Amelanchier alnifolia Serviceberry Rosaceae N IT Anaphalis margaritacea Pearly everlasting Asteraceae N IT,rip Angelica lucida Sea watch Apiaceae N hsm Arbutus menziesii Pacific madrone Ericaceae N IT Asparagus officina1is Asparagus Liliaceae I hsm Aster subspicatus Saltmarsh aster Asteraceae N hsm Athyrium filix-femina Lady fern Dryopteridaceae N IT,rip,fw Atriplex prostrata Fat hen Chenopodiaceae I hsm Brassica nigra Black mustard Brassicaceae I pasture Buddleja davidiii Butterfly bush Buddlejaceae I IT Calystegia silvatica Giant bindweed Convolvulaceae I IT,rip Carex deweyana Dewey's sedge Cyperaceae N pasture Carex lyngbyei Lyngbey's sedge Cyperaceae N hsm.1sm. Carex obnupta Slough sedge Cyperaceae N fw Centaurea biebersteinii Spotted knapweed Asteraceae I IT Chenopodium album Lambsquarters Chenopodiaceae I IT,hsm Cichorium intybus Chicory Asteraceae I IT Cirsium arvense Creeping thistle Asteraceae nox IT,rip,pasture,filled sm Comus sericea Red-stem dogwood Cornaceae N rip Crepis capillaris Smooth hawk's-beard Asteraceae I IT Cytisus scoparius Scot's broom Fabaceae nox IT Dactylus glomerata Orchard grass Poaceae I IT,pasture Daucus carota Queen Ann's lace Apiaceae nox IT Deschampsia cespitosa Tufted hairgrass Poaceae N hsm Dipsacus fullonum Wild teasel Dipsacaceae I IT,rip Distichlis spicata Saltgrass Poaceae N hsm,lsm Elytrigia repens Quackgrass Poaceae I IT,pasture Epilobium ciliatum Watson's willowherb Onagraceae N rip Equisetum arvense Field horsetail Equisetaceae N pasture Equisetum hyemale Scouring rush Equisetaceae N ..rip Equisetum telmatiea Giant horsetail Equisetaceae N .l!.Itp . Festuca arundinaceae Tall fescue Poaceae I rr,pasture Festuca rubra var. littoralis Salt marsh fescue Poaceae N hsm Festuca rubra var. rubra European red fescue Poaceae I pasture Fragaria virginiana Wild strawberry Rosaceae N rr Gaultheria shallon Salal Ericaceae N rr Geum macrophyllum Big-leaved avens Rosaceae N rr,rip Glaux maritima Sea milkwort Primulaceae N hsm Glechoma hederacea Creeping charlie Lamiaceae I rr,rip Grindelia integrifolia Beach gumweed Asteraceae N rr,hsm Holcus lanatus Velvet grass Poaceae I rr,pasture Holodiscus discolor Ocean spray Rosaceae N rr,rip Hordeum brachyantherum Meadow barley Poaceae N hsm Hypericum perforatum S1. John's wort Celastraceae nox rr Hypochaeris radicata Haity catsear Asteraceae nox rr nex aquifolium English holly Aquifoliaceae I rr Impatiens capensis Jewelweed Balsaminaceae I rip 1 Juncus balticus Baltic rush Juncaceae N hsm I Juncus effusus Vat. pacificus Soft rush Juncaceae N hsm J Juncus effusus var.effusus Wire rush Juncaceae I rr,pasture Juncus gerardii Mud rush Juncaceae I hsm Lactuca muralis Wall lettuce Asteraceae I rr Lapsana communis Nipplewort Asteraceae I rr Lathyrus littoralis Gray beach pea Fabaceae N rr Lolium perenne Perennial ryegrass Poaceae I pasture Lonicera involucrata Black twinberry Caprifoliaceae N rip Lotus comiculatus Bird's foot trefoil Fabaceae I pasture Lupinus arboreus Tree lupine Fabaceae I rr Malus fusca Pacific crabapple Rosaceae N rr,rip Oemlaria cerasiformis Indian plum Rosaceae N rr Phalaris arundinacea Reed canary grass Poaceae nox pasture,rip.filled sm,fw Phleum pretense Timothy Poaceae I pasture Picea sitchensis Sitka spruce Pinaceae N rr Plantago lanceolata English plantain Plantaginaceae I rr Plantago maritima Salt marsh plantain Plantaginaceae N hsm,lsm Polystichum munitum Sword fern Polypodiaceae N rr,rip Potentilla anserina Pacific silverweed Rosaceae N hsm,rip,fw Prunus avium Mazzard Rosaceae I rr Pseudotsuga menziesii Douglas :fir Pinaceae N rr Pteridium aquilinum Bracken Polypodiaceae N rr Ranunculus acris Meadow buttercup Ranunculaceae I rr,pasture Ranunculus repens Creeping buttercup Ranunculaceae I rr,rip,pasture,filled sm,fw Rhamnus purshiana Cascara Rhamnaceae N rr,rip Rhododendron Pacific rhododendron Ericaceae N rr macrophyllum Rosa nutkana Nootka rose Rosaceae N rr,rip Rubus armeniacus Himalaya blackberry Rosaceae I rr,rip,pasture Rubus laciniatus Evergreen blackberry Rosaceae I rr,pasture Rubus parvitlorus Thimbleberry Rosaceae N rr,rip Rubus spectabilis Salmon berry Rosaceae N rr,rip Rubus ursinus Dewberry Rosaceae N rr,rip, Rumex crispus Sour dock Polygonaceae I rr,pasture Salicomia virginica American glasswort Chenopodiaceae N hsm,lsm Salix lasiandra Pacific willow Salicaceae N rip Salix scouleriana Scouler's willow Salicaceae N rr,rip Sambucus racemosa Red elderoerry Caprifoliaceae N rr Scirpus acutus HardMstem bulrush Cyperaceae N salt water shoreline SciIpus maritimus Salt marsh bulrush Cyperaceae N salt water shoreline Scirpus microcarpus SmallMfruited bulrush Cyperaceae N pasture,fw Senecio jacobaea Tansy ragwort Asteraceae nox rr Solanum dulcamera Bittersweet nightshade Solanaceae I rr,rip Sorbus aucuparia Rowan tree Rosaceae I rr Spiraea douglasii Hardback Rosaceae N rr,rip,fw Stellaria humifusa Salt marsh starwort Caryophyllaceae N Ism Taraxacum officinale Dandelion Asteraceae I rr,pasture Thuja plicata Western redcedar Cupressaceae N rr,rip Trifolium arvensis Rabbit's foot clover Fabaceae I rr Trifolium pratense Red clover Fabaceae I rr,pasture Trifolium repens White clover Brassicaceae I rr Triglochin maritima Seaside arrowgrass Juncaginaceae N hsm,lsm Tsuga heterophylla Western hemlock Pinaceae N rr,rip Typhalatifolia Common cattail Typhaceae N fresh water Urtica dioica var. lyallli Stinging nettle Urticaceae N rr,rip Vaccinium ovatum Evergreen huckleberry Ericaceae N rr Vaccinium parvifolium Red huckleberry Ericaceae N rr Verbascum thapsus Common mullein Scrophulariaceae I rr Vicia sativa Common vetch Fabaceae I rr ~ ~ ~ z sa ~ ~i ~Jilil <~ ~1iIil ~~ IiIil t= ~ o ~ ~ ~ i a o p.. ia .., o ~ .., .51 .., Ci u ..::1 5 6- ~ ii: u .... 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Ran2e 2W SOURCES OF INFORMATION: (check all sources that apply) Site visit:]L USGS Topo map:]L NWI map:_ Aerial Pboto:X Soil Survey:X Other:]L Describe: NOSC/WDFW mal>S WHEN TIIE FIELD DATA FORM IS COMPLETE, ENTER CATEGORY HERE: I Points: NA Q.l. High Quality Natural Wetland. Answer this question if you have adequate information or experience to do so. If not, find someone with the expertise to answer the questions. Then, if the answer to questions Ia, Ib, and Ic are all NO, contact the Natural Heritage Program ofDNR. la. Human-caused disturbances. Is there significant evidence of human -caused changes to topography or hydrology of the wetland as indicated by any of the following conditions? (Consider only changes that may have taken place in the last 5 decadesJ lal. Upstream watershed> 12% impervious >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 182. Wetland is ditched and water flow is not obstructed >>>>>>>>>>>>>>>>>>>>>>>>>>>> 103. Wetland has been graded, filled. logged >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> la4. Water in wetland is controlled by dikes, weirs, etc >>>>>>>>>>>>>>>>>>>>>>>>>>>>> 1aS. Wetland is grazed >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 1a6. Other indicators of disturbance (list below) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The wetland is adiacent to Hild1wav 101. and bounded bv fills on three sides lb. Are there populations of non-native plants which are currently present, covering more than 10% of the wetland, and appearing to be invading native populations? Briefly describe any non- native plant populations and information sources: Pick1eweed is native but invasive and indicative of low quality conditions Ie. Is there evidence of human -caused disturbances which have visibly degraded water quality. Evidence of the degradation of water quality may include: direct (untreated) lUIlofffrom roads or parking lots; presence or historic evidence of waste dumpS; oily sheens; the smell of organic chemicals; or livestock use. Briefly describe: all of the above except for livestock use. Q.2. Irreplaceable Ecological Functions: Does the wetland: - have at least 1/4 acre of organic soils deeper than 16 inches, and the wetland is relatively undisturbed; (NOTE: If the answer is NO because the wetland is disturbed, briefly describe the disturbance. >>>>>>>>>>>>>>>>> - OR have a forested class greater than 1 acre >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> - OR have characteristics of an estuarine system >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> - OR have eel grass, floating !!! non-floating kelp beds? >>>>>>>>>>>>>>>>>>>>>>>>>>> Circ1eAnswers No: to all, go to Ib Yes Yes:go to Q2 No Yes:go to Q2 No Xg,:go to Q2 No Yes:go to Q2 No Yes:go to Q2 No Xg,:go to Q2 No Yes:go to Q2 No: go to Ie Xg,:go to Q2 No : Possible Cat. I: contact DNR- Nat. Her. Prgrm No to all: go to Q.3. Yes:go to 2a No Yes:go to 2b No Xg,:go to 2c No Yes:go to 2d No Pagel 20. Bogs and Fens: Are any of the three following conditions met for the area of organic soil? 20.1 Are Sphagnum mosses> 30% groundcover AND is cover of species from Table 3 <10%? - Is the area of Sphagnum mosses and deep organic soils >Yz acre? Yes: Cat.! - Is the area of Sphagnum mosses and deep organic soils 1/4-1/2 acre? Yes: Cat. n No: go to 2a.2 28.2 Is there an area of organic soil which has an emergent class with at least one species from Table 2 , AND is cover of species from Table 3 <10%? Yes: Cat. I - Is the area of herbaceous plants and deep organic soils> Yz acre? - Is the area of Sphagnum mosses and deep organic soils 1/4-1/2 acre? Yes: Cat.n No: go to 2a.3 2o.J Is the vegetation a mixture of only herbaceous plants and Sphagnum mosses with no scrub/shrub or forested classes? - Is the area of herbaceous plants, Sphagnum, and deep organic soils >Yz acre? Yes: Cat. I - Is the area of herbaceous plants, Sphagnum, and deep organic soils 1/4-1/2 acre? Yes: Cat. n No: go to Q3 Q.2b. Mature Forested Wetlands Yes: Cat. I 2b.l Does 50% of the cover of upper forest canopy consist of evergreen trees older than 80 years or deciduous trees older than 50 years? (N01E: Size of trees cannot be used as a surrogate for No: go to 2b.2 age.) Yes: go to 2b.3 2b.2 Does 50% of the cover of forest canopy consist of evergreen trees older than 50 years, AND ~: gotoQ3 is the structural diversity of the forest high, as characterized by an additional layer of trees 20-49' Yes: Cat. I tall, shrubs 6-20' tall, , and a herbaceous groundcover? 2b.3 Does <25% of the areal cover in the herbaceous! groundcover or the shrub layer consist of No: go to Q3 invasive or exotic plant species from the p.19 list? Q.2c. Estuarine Wetlands Yes: Cat. I 2c.l Is the wetland listed as National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park, or Educational, Environmental, or Scientific Reserves ~: go to 2c.2 designated under WAC 332-l51? Yes: Cat. I 2c.2 Is the wetland >5 acres; (incbuling BellS on both sides of the Salmon Creek outlet) NOTE: If an area contains patches of salt tolerant vegetation that are <600 feet apart and separated by mudflats that go dry on a Mean Low Tide, OR separated by tidal channels that are <100 feet wide, then all the vegetated areas are to be considered together in calculating the wetland area. Yes: go to 2c.3 - OR is the wetland 1-5 acres; - OR is the wetland <1 acre? Yes: go to 2c.4 2c.3 Does the wetland meet at least 3 of the following 4 criteria? Yes: Cat. I - minimum existing evidence of human-related disturbance, such as diking, ditching, filling, cultivation, grazing, or the presence of non-native plant species; - surface water connection with tidal saltwater or tidal freshwater; - at least 75% of the wetland has a 100' buffer ofungrazed pasture, open water, shrub or forest; - has at least 3 of the following features: low marsh; high marsh; tidal channels; lagoon( s); woody debris; or contiguous freshwater wetland. No: Cat.n 2c.4 Does the wetland meet all four criteria under 2c.3? Q.2d. Eel Grass and Kelp Beds Yes: Cat. I 2d.l Are eel grass beds present? No: go to 2d.2 2d.2 Are there floating or non-floating kelp bed(s) present with >50% macro-algaI cover in the Yes: Cat. I month of Arum.<rt or Sentember? No: Cat. n Q.3. Category IV Wetlands 3a. Is the wetland less than 1 acre AND hydrologically isolated AND comprised of one vegetated class that is dominated (>80% areal cover) by one species from Table 3 or Table 4? 3b. Is the wetland less than 2 acres AND hydrologically isolated AND with one vegetated class AND with >90% area cover of any combination of species from Table 3? 3c. Is the wetland excavated from upland AND comprised of a pond smaller than 1 acre without a surface water connection to streams, lakes, rivers, or other wetlands AND with <0.1 acres of vegetation? Yes: Cat. IV ~: go to 3b Yes: Cat. IV No: go to 3c Yes: Cat. IV No: go to Q4 Page 3 WElLANDS RATING FIELD DATA FORM BACKGROUND INFORMATION: Name ofrater(s):Lisa Palazzi Affiliation(s~acific Rim Soil & Water. Inc. Date: April!, 2007 Name of Wetland (if known): North Site: PSSIPFO wetland (RID) Government jmisdiction of wetland: Jefferson Location:: Section 23. Townshin 29N. Range 2W SOURCES OF INFORMATION: (check all sources that apply) Site visit:]L USGS Topo map:]L NWI map:~ Aerial Photo:X Soil Survey:X Other:]L Describe: NOSCIWDFW mans WHEN THE FIELD DATA FORM IS COMPLETE, ENTER CATEGORY HERE:]L Points: 28 Q.l. High Quality Natural Wetland. Answer this question if you have adequate infonnation or experience to do so. If not, find someone with the expertise to answer the questions. Then, if the answer to questions la, Ib, and lc are all NO, contact the Natural Heritage Program ofDNR. la. Human-caused disturbances. Is there significant evidence of human-caused changes to topography or hydrology of the wetland as indicated by any of the following conditions? (Consider only changes that may have taken place in the last 5 decades.) lal. Upstream watershed> 12% impervious >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 182. Wetland is ditched and water flow is not obstructed >>>>>>>>>>>>>>>>>>>>>>>>>>>> la3. Wetland has been graded, filled, logged >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> la4. Water in wetland is controlled by dikes, weirs, etc >>>>>>>>>>>>>>>>>>>>>>>>>>>>> laS. Wetland is grazed >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> la6. Other indicators of disturbance (list below) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The wetland is adiacent to Hi!d1wav 101. and bounded bv fills on three sides. over 90% of nerimeter lb. Are there populations of non-native plants which are currently present, covering more than 10% of the wetland, and appearing to be invading native populations? Briefly describe any non- native plant populations and infonnation sources: Reed canarygrass Ie:. Is.there evidence ofhUIhan-caused disturbances which have visibly degraded. water quality. Evidence of the degradation of water quality may include: direct (untreated) nmotffrom roads or parking lots; presence or historic evidence of waste dumps; oily sheens; the smell of organic chemicals; or livestock use. Briefly describe: all of the above except for livestock use. Q.2. Irreplaceable Ecological Functions: Does the wetland: - have at least 1/4 acre of organic soils deeper than 16 inches, and the wetland is relatively undisturbed; (NOTE: If the answer is NO because the wetland is disturbed, briefly describe the disturbance. >>>>>>>>>>>>>>>>> - OR have a forested class greater than 1 acre >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> - OR have characteristics of an estuarine system >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> - OR have eel grass, floating Q! non-floating kelp beds? >>>>>>>>>>>>>>>>>>>>>>>>>>> Circle Answers No: to all, go to Ib Yes Yes:go to Q2 No Yes:go to Q2 ~ X!?!:go to Q2 No Yes:go to Q2 No Yes:goto Q2 No Yes:go to Q2 No X!?!:go to Q2 No: go to lc X!?!:go to Q2 No : Possible Cat. I: contact DNR- Nat. Her. Prgnn No to all: go to Q.3. Yes:go to 2a No Yes:go to 2b ~ Yes:go to 2c No Yes:go to 2d ~ Page I - /1')1'\0'" -+ dJ . ;.\ f 2a. Bogs and Fens: Are any of the three following conditions met for the area of organic soil? 2a.l Are Sphagnum mosses> 30% groundcover AND is cover of species from Table 3 <10%? - Is the area of Sphagnum mosses and deep organic soils >\4 acre? Yes: Cat.! - Is the area of Sphagnum mosses and deep organic soils 1/4-1/2 acre? Yes: Cat. n ID!: go to 2a.2 28.2 Is there an area of organic soil which has an emergent clas~ with at least one species from Table 2 , AND is cover of species from Table 3 <1O%? - Is the area of herbaceous plants and deep organic soils> \4 acre? Yes: Cat. I - Is the area of Sphagnum mosses and deep organic soils 1/4-1/2 8J;re? Yes: Cat.n ID!: go to 2a.3 2..3 Is the vegetation a mixture of only herbaceous plants and Sphagnum mosses with no scrub/sluub or forested classes? - Is the area of herbaceous plants, Sphagnum, and deep organic soils >\4 acre? Yes: Cat. I - Is the area of herbaceous plants, Sphagnum, and deep organic soils I/4-1/2 acre? Yes: Cat. n ID!: go to Q3 Q.2b. Mature Forested Wetlands 2b.l Does 50% of the cover of upper forest canopy consist of evergreen trees older than 80 years Yes: Cat. I or deciduous trees older than 50 years? (NOTE: Size of trees cannot be used as a surrogate for No: go to 2b.2 age.) Yes: goto2b.3 2b.2 Does 50% of the cover of forest canopy consist of evergreen trees older than 50 years, AND No: go to Q3 is the structural diversity of the forest high, as characterized by an additional layer of trees 20-49' Yes: Cat. I tall, shrubs 6-20' tall, , and a herbaceous groundcover? 2b.3 Does <25% of the areal cover in the herbaceous! groundcover or the shrub layer consist of No: go to Q3 invasive or exotic plant species from the P. I 9 list? Q.2c. Estuarine Wetlands Yes: Cat. I 2c.l Is the wetland listed as National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park, or Educational, Environmental, or Scientific Reserves No: go to 2c.2 designated under WAC 332-151? Yes: Cat. I 2c.2 Is the wetland >5 acres; (induding flTetlS on both sides of the Salmon Creek outlet) NOTE: If on area contains patches of salt tolerant vegetation that are <600 feet apart and separated by mudflats that go dry on a Mean Low Tide, OR separated by tidal channels that are <100 feet wide, then all the vegetated areas are to be considered together in calculating the wetland area. Yes: go to 2c.3 - OR is the wetland 1-5 acres; - OR is the wetland <1 acre? Yes: go to 2cA 2c.3 Does the wetland meet at least 3 of the following 4 criteria? Yes: Cat. I - minimum existing evidence of human-related disturbance, such as diking, ditching, filling, cultivation, grazing, or the presence of non-native plant species; - SUIface water connection with tidal saltwater or tidal freshwater; - at least 75% of the wetland has a 100' buffer ofungrazed pasture, open water, sluub or forest; - has at least 3 of the following features: low marsh; high marsh; tidal channels; lagoon( s); woody debris; or contiguous freshwater wetland. No: Catn 2c.4 Does the wetland meet all four criteria under 2c.3? Q.2d. Eel Grass and Kelp Beds Yes: Cat. I 2d. I Are eel grass beds present? No: go to 2d.2 2d.2 Are there floating or non-floating kelp bed( s) present with >50% macro-aIgal cover in the Yes: Cat. I month of Au!rnSt or Sentember? No: Cat. n Page 2 Q.3. Category IV Wetlands 38. Is the wetland less than 1 acre AND hydrologically isolated AND comprised of one vegetated class that is dominated (>80% areal cover) by one species from Table 3 or Table 4? 3b. Is the wetland less than 2 acres AND hydrologically isolated AND with one vegetated class AND with >90% area cover of any combination of species from Table 3? 3c. Is the wetland excavated from upland AND comprised of a pond smaller than 1 acre without a surface water connection to streams, lakes, rivers, or other wetlands AND with <0.1 acres of vegetation? Q.4. Significant Habitat Value. Answer all questions and enter data requested. 4a. Estimate total wetland area, selecting from choices in the near-right colUIDIl, and score in the far column: Enter wetland acreage here: -10+ acres, and source: IncludiJu! offsite areas~ ocular estimate from aerial photos 4b. Wetland classes: Circle the wetland classes below that qualify by being greater than ~ acre in size for each class, and in the case of Open Water, being that size for more than 1 month at a time. Open Water Aquatic Beds Emergent Scrub-shrub Forested Count the number of wetland classes above, then score according to the columns to the right. 4c. Plant Species Diversity. Class For each wetland class (at right) that qualifies in 4b above, count the number of different plant species you can find that cover more than 5% of the ground. It is not Aquatic necessary to name them. Score in column at far right. Bed>>>>> Note: Any plant species with a cover of> 5% qualifies for points within a class, even those that are not of that class - i.e. a grass species can qualifY for points in aforested class. Emergent>>>> Scrub Shrub>>>>>> Forested>>>>> 4d. Structural Diversity. If the wetland has a forested class, add 1 point if each of the following classes is present within the forested class, AND is laraer than 1/4 acre in size: Please note that these systems tlI'e offsite, so we flSsuming these conditions from aeriol photo indications; cannot check directly. - trees >50' tall - trees 20'-49' tall - shrubs - herbaceous groundcover Also, add I point if there is any "open water" or " aquatic bed" class immediatelv next to the forested area (i.e., there is no scrub/shrub or emergent vegetation between them). Yes: Cat. IV No: go to 3b Yes: Cat. IV No: go to 3c Yes: Cat. IV No: go to Q4 Circle scores that qualify acres points >200 6 40-200 5 10-40 4 5-10 3 1.5 2 !!:!:! ..! <0.1 0 # of classes points --r- 0 2 3 "3 "6 4 8 5 10 tLmm. points 1 0 2 1 3 2 >3 3 1 0 2-3 1 4-5 2 >5 3 1 0 2 1 34 2 ~ 2 1 0 2 1 34 2 ~ 2 Yes=l No Yes=l No ~=l No Yes=l No Yes= 1 r!!! Page 3 OC1- 4 2007 4e. Class Interspersion: Decide from the diagrams below whether intersnersion between wetland classes is high, moderate, low, or none. High=3 none - 100,"", loVU" ...~. ...~ .............. ..... .<:::.::~..~_::7~:.:::;;::::-> .~;:~.....~.::~:::::;.. ."' .... ...... .. ...... . .... l'TIIe>derate rnodera:te high 4f. Habitat Features Answer questions below, circle features that apply, and score to right: "'Is there evidence that the open or standing water was caused by beaver activity? >>>>>>>>>>>>>>> "'Is a heron rookery located within 3oo'? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> "'Are raptor nest(s) located within 3oo'? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *Are there at least 3 standing dead trees (snags) per acre >10. DBH (in or adjacent to the wetland)?>> "'Are there at least 3 downed logs per acre with a diameter of>6" for at least 1 0' in length (in or adjacent to..)? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> "'Are there areas (vegetated or unvegetated) within the wetland that are ponQed for at least 4 months of the year, AND the wetland has not qualified as having an open water class in Q4b (i.e. <1/4 acre in sire)? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 4g. Connection to Streams (Score one answer only.) 4g.1 Does the wetland provide habitat for fish at any time of year AND does it have a perennial surface water COIUlection to a fish bearing stream? 4g.2 Does the wetland provide fish habitat seasonally AND does it have a seasonal surface water connection to a fish bearing stream? 4g.3 Does the wetland function to export organic matter through a surface water COIUlection at all times of the year to a perennial stream? 4g.4 Does the wetland function to export organic matter through a swface water connection to a stream on a seasonal basis? 4h. Buffers: Score the existing buffers on a scale of 1-5 based on the following four descriptions. If the conditions of the buffers do not fit, score a point higher or lower, depending on whether the buffers are more or less degraded. '" Forest, scrub, native grassland or open water buffers are present with widths > 100' around 95% of the circumference. '" Forest, scrub, native grassland or open water buffers are present with widths >100' around >50% of the circumference, OR the same buffers are present with widths >50' around >50% of the circumference. '" Forest, scrub, native grassland or open water buffers are present with widths> I 00' around >25% of the circumference, OR the same buffers are present with widths >50' around >95% of the circumference. '" No roads, buildings or paved areas within 100' of the wetland for >95% of the circumference. '" No roads, buildings or paved areas within 25' of the wetland for >95% of the circumference OR No roads, buildings or paved areas within 50' of the wetland for >50% of the circumference '" Paved areas, industrial areas or residential construction (with less than 50' between houses) are <25' from the wetland for more than 95% of the circumference. Moderate=2 ~ None=O Yes=2~ Yes=l No Yes"'l No? Yes=l No Yes=l No !!!=2 No Yes=6 No Yes=4 No Yes=4No Yes=2 No Score=5 Score=3 Score=2 Score=2 Score= 1 Score=O Page 4 4i Connection to Other Habitat Areas: Select the description which best matches the site being evaluated. · Is the wetland connected to or part of a riparian corridor at least 100' wide connecting two or more wetlands; OR is there an upland connection present >100' wide with good forest or shrub cover (>25% cover) connecting it with a Significant Habitat Area (>300 yds dimension or >20 ac if OW)? * Is the wetland connected to any other Habitat Area (>50 yds dimension) with either (1) a forested or shrub corridor <100' wide OR (2) a vegetated corridor >100' wide, but with cover >6' tall? *Is the wetland connected to or part of a riparian corridor between 58-100' wide with scrub/shrub or forest cover connection to other wetlands. * Is the wetland connected to any other Habitat Area (>50 yds dimension) with a vegetated corridor <100' wide with cover <6' tall? · Is the wetland and its buffer (if the buffer is <50' wide) completely isolated by development (urban. residential with a density >21ac, or industrial)? ~ Yes=3 Yes=3 Yes=l Yes=O Now add the scores circled (for Q5a-Q5i above) to get a total. Is the total greater than or equal to 22 points? 28 Yes: Cat.n NO: Cat ill OCT -p4 ino? age S" WElLANDS RATING FIELD DATA FORM BACKGROUND INFORMATION: Name ofmter(s):Lisa Palazzi Affiliation(s)Pacific Rim Soil & Water. Inc. Date: Aprill. 2007 Name of Wetland (if known): South Site: PEMlPSS wetland (RU3) Govemmentjurisdiction of wetland: Jefferson Location:: Section 23. Townshiu 29N. Rane:e 2W SOURCES OF INFORMATION: (check all sources that apply) Site visitlL USGS Topo map:lL NWI map:_ Aerial Photo:X Soil Swvey:X Other:lL Describe: NOSCIWDFW mans WHEN THE FIELD DATA FORM IS COMPLETE, ENTER CATEGORY HERE: n Points: 27 Q.1. IDgh Quality Natural Wetland. Answer this question if you have adequate infonnation or experience to do so. If not, find someone with the expertise to answer the questions. Then, if the answer to questions la, lb, and lc are all NO, contact the Nlltw'al Heritage Program ofDNR. la. Human-caused disturbances. Is there significant evidence of human -caused changes to topography or hydrology of the wetland as indicated by any of the following conditions? (Consider only changes that may have taken place in the last 5 decades.) lal. Upstream watershed> 12% impervious >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 1&2. Wetland is ditched and water flow is not obstructed >>>>>>>>>>>>>>>>>>>>>>>>>>>> la3. Wetland has been graded, filled, logged >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> la4. Water in wetland is controlled by dikes, weirs, etc >>>>>>>>>>>>>>>>>>>>>>>>>>>>> laS. Wetland is grazed >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> la6. Other indicators of distwbance (list below) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The wetland is IIl.aD.82ed as uasture. adjacent to HilZhwav 101 and uarkin2 lot fills lb. Are there populations of non-native plants which are cmrently present, covering more than 10% of the wetland, and appearing to be invading native populations? Briefly describe any non- native plant populations and information sources: Reed canarvfU'8ss 1c. Is there evidence of human -caused disturbances which have visibly degraded water quality. Evidence of the degradation of water quality may include: direct (lUltreated) runoff from roads or parking lots; presence or historic evidence of waste dumps; oily sheens; the smell of organic chemicals; or livestock use. Briefly describe: Q.2. Irreplaceable Ecological Functions: Does the wetland: - have at least 1/4 acre of organic soils deeper than 16 inches, and the wetland is relatively lUldisturbed; (NOTE: If the answer is NO because the wetland is disturbed, briefly describe the disturbance. >>>>>>>>>>>>>>>>> - OR have a forested class greater than 1 acre >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> - OR have characteristics of an estuarine system >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> - QB have eel grass, floating ill: non-floating kelp beds? >>>>>>>>>>>>>>>>>>>>>>>>>>> Circle Answers No: to all. go to lb Yes Yes:go to Q2 ~ Yes:go to Q2 No Yes:go to Q2 No Yes:go to Q2 No fi!:go.to Q2 No fi!:goto Q2 No Yes:go to Q2 No: go to Ie Yes:go to Q2 No : Possible Cat. I: contact DNR- Nat. Her. Prgrm No to all: go to Q.3. Yes:go to 2a No Yes:go to 2b ~ Yes:go to 2e No Yes:go to 2d No Pagel 1 1 J , I I 2a. Bogs and Fens: Are any of the three following conditions met for the area of organic soil? 2a.l Are Sphagnum mosses> 30% groundcover AND is cover of species from Table 3 <1O%? - Is the area of Sphagnum mosses and deep organic soils >~ acre? Yes: Cat.I - Is the area of Sphagnum mosses and deep organic soils 1/4-112 acre? Yes: Cat. II No: go to 2a.2 2a.2 Is there an area of organic soil which has an emergent class with at least one species from Table 2 ,AND is cover of species from Table 3 <IO%? - Is the area of herbaceous plants and deep organic soils > ~ acre? Yes: Cat. I - Is the area of Sphagnum mosses and deep organic soils 1/4-1/2 acre? Yes: Cat.I1 No: go to 2a.3 2a.3 Is the vegetation a mixture of only herbaceous plants and Sphagnum mosses with no scrub/shrub or forested classes? - Is the area of herbaceous plants, Sphagnu.m, and deep organic soils >~ acre? Yes: Cat. I - Is the area of herbaceous plants, Sphagnum, and deep organic soils 1/4-1/2 acre? Yes: Cat. II No: go to Q3 Q.2b. Mature Forested Wetlands Yes: Cat. I 2b.l Does 50% of the cover of upper forest canopy consist of evergreen trees older than 80 years or deciduous trees older than 50 years? (NOTE: Size of trees cannot be used as a surrogate for ~: go to 2b.2 age.) Yes: go to 2b.3 2b.2 Does 50% of the cover of forest canopy consist of evergreen trees older than 50 years, AND No: go to Q3 is the structural diversity of the forest high, as characterized by an additional layer of trees 20-49' Yes: Cat. I tall, shrubs 6-20' tall, , and a herbaceous groundcover? 2b.3 Does <25% of the areal cover in the herbaceous! groundcover or the shrub layer consist of No: go to Q3 invasive or exotic ulant species from the p.19list? Q.2c. Estuarine Wetlands Yes: Cat. I 2c.l Is the wetland listed as National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park, or Educational, Environmental, or Scientific Reserves No: go to 2c.2 designated under WAC 332.l5l? Yes: Cat. I 2c.2 Is the wetland >5 acres; (inclu.ding tuetlS on both sides of the Salmon Creek outlet) NOTE: If an area contains patches of salt tolerant vegetation that are <600 fiet apart and separated by mudflats that go dry on a Mean Low Tide, OR separated by tidal channels that are <100 feet wide, then all the vegetated areas are to be considered together in calculating the wetland area. Yes: go to 2c.3 - OR is the wetland 1-5 acres; - OR is the wetland <I acre? Yes: go to 2cA 2c.3 Does the wetland meet at least 3 of the following 4 criteria? Yes: Cat. I - minimum existing evidence of human-related disturbance, such as diking, ditching, filling, cultivation, grazing, or the presence of non-native plant species; - surface water connection with tidal saltwater or tidal freshwater, - at least 75% of the wetland has a 100' buffer ofungrazed pasture, open water, shrub or forest; - has at least 3 of the following features: low marsh; high marsh; tidal channels; lagoon( s); woody debris; or contiguous freshwater wetland. No: Cat.n 2c.4 Does the wetland meet all four criteria under 2c.3? Q.2d. Eel Grass and Kelp Beds Yes; Cat. I 2d.1 Are eel grass beds present? No; go to 2d.2 2d.2 Are there floating or non-floating kelp bed( s) present with >50% macro-algal cover in the Yes: Cat. I month of AUl!Ust or Sentember? No: Cat. n OCT P4ez007 Q.3. Category IV Wetlands 3a. Is the wetland less than I acre AND hydrologically isolated AND comprised of one vegetated class that is dominated (>80% areal cover) by one species from Table 3 or Table 4? 3b. Is the wetland less than 2 acres AND hydrologically isolated AND with one vegetated class AND with >90% area cover of any combination of species from Table 3? 3c. Is the wetland excavated from upland AND comprised of a pond smaller than 1 acre without a surface water COlUlection to streams, lakes, rivers, or other wetlands AND with <0.1 acres of vegetation? Q.4. Significant Habitat Value. Answer all questions and enter data requested. 4a. Estimate total wetland area, selecting from choices in the near-right column, and score in the far column: Enter wetland acreage here:..:::1Q:!:...acres, and source: Could be much ~er than 40 acres. including offsite areas associated with both Salmon and Snow Creeks: ocular estimate from aerial llhotos 4b. Wetland classes: Circle the wetland classes below that qua1i1)r by being greater than y" acre in size for each class, and in the case of Open Water, being that size for more than I month at a time. Open Water Aquatic Beds Emement Scrub-shrub Forested Count the number of wetland classes above, then score according to the columns to the right. 4c. Plant Species Diversity. Class For each wetland class (at right) that qualifies in 4b above, count the number of different plant species you can find that cover more than 5% of the ground. It is not Aquatic necessary to name them. Score in column at far right. Bed>>>>> Note: Any plant species with a cover of>5% qualifiesfor points within a class, even those that are not of that class - i.e. a grass species can qualify for points in aforested class. Emergent>>>> Scrub Shrub>>>>>> Forested>>>>> 411. Structural Diversity. If the wetland has a forested class, add 1 point if each of the following classes is present within the forested class, AND is larger than 1/4 acre in size: PletlSe note that these systems tll'e offsite, so we ossuming these conditions from aerial photo indications; cannot check directly. - trees >50' tall - trees 20'-49' taIl - shrubs - herbaceous groundcover Also, add 1 point if there is any "open water" or" aquatic bed" class iInmediatelvnext to the forested area (i.e., there is no scrub/shrub or emergent vegetation between them). Yes: Cat. IV !!.!!: go to 3b Yes: Cat. IV No: go to 3c Yes: Cat. IV !'!!!: go to Q4 Circle scores that qualify acres wints >200 6 40-200 5 IQ:4O "4 5-10 3 1-5 2 0.1-1 1 <0.1 0 #of ~es wints --r-- 0 2 3 "3 "6 4 8 5 10 !Lmm wints 1 0 2 1 3 2 >3 3 1 0 2-3 1 4-5 2 ~ ..1 1 0 2 1 3-4 2 ~ ..1 1 0 2 1 3-4 2 >4 3 Yes=INo Yes=INo Yes=l No Yes=l No Yes=l No Page 3 4e. Class futerspersion: Decide from the diagrams below whether interspersion between wetland classes is high, moderate, low, or none. High=3 - lovv tovv non. ...~. ,.~~ ...-:-:..-...... eD,,:":':'. ::1.00.' u:. .:~~::;.l!!'!: :F:::~ rTlodererte rnocfera't.e high 4f. Habitat Features Answer questions below, circle features that apply, and score to right: *Is there evidence that the open or standing water was caused by beaver activity? >not yeP>>>>>>> *ls a heron rookery located within 3oo'? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *Are raptornest(s) located within 300'? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *Are there at least 3 standing dead trees (snags) per acre >10" DBH (in or adjacent to the wetland)?>> * Are there at least 3 downed logs per acre with a diameter of>6" for at least 1 0' in length (in or adjacent to..)? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> * Are there areas (vegetated or unvegetated) within the wetland that are ponded for at least 4 months of the year, AND the wetland has not qualified as having an open water class in Q4b (i.e. <114 acre in size)? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 4g. Connection to Streams (Score one answer only.) 4g.1 Does the wetland provide habitat for fish at any time of year AND does it have a perennial swface water connection to a fish bearing stream? 4g.2 Does the wetland provide fish habitat seasonally AND does it have a seasonal surface water connection to a fish bearing stream? 4g.3 Does the wetland function to export organic matter through a surface water connection at all times of the year to a perennial stream? 4g.4 Does the wetland function to export organic matter through a surface water connection to a stream on a seasonal basis? 4h. Buffers: Score the existing buffers on a scale of 1-5 based on the following four descriptions. If the conditions of the buffers do not fit, score a point higher or lower, depending on whether the buffers are more or less degraded, * Forest, scrub, native grassland or open water buffers are present with widths> 100' around 95% of the circUmference. * Forest, scrub, native grassland or open water buffers are present with widths >100' around >50% of the circumference, OR the same buffers are present with widths >50' around >50% of the circumference. * Forest, scrub, native grassland or open water buffers are present with widths> 100' around >25% of the circumference, OR the same buffers are present with widths >50' around >95% of the circUmference. * No roads, buildings or paved areas within 100' of the wetland for >95% of the circumference. * No roads, buildings or paved areas within 25' of the wetland for >95% of the circumference OR No roads, buildings or paved areas within 50' of the wetland for >50% of the circumference * Paved areas, industrial areas or residential construction (with less than 50' between houses) are <25' from the wetland for more than 95% of the circumference. Moderate=2 Low=l None=O Yes=2 No Yes=l No Yes=l No? Yes=l No Yes=l No Yes=2 No Yes=6No Yes=4 No Yes=4 ~ Yes=2No Score=5 Score=3 Score=2 Score=2 Score: 1 Score=O o C TP~e -;tOOl 4i. Connection to Other Habitat Areas: Select the description which best matches the site being evaluated. ... Is the wetland connected to or part of a riparian corridor at least 100' wide connecting two or more wetlands~ OR is there an upland connection present >100' wide with good forest or shrub cover (>25% cover) connecting it with a Significant Habitat Area (>300 yds dimension or >20 ac if OW)? ... Is the wetland connected to any other Habitat Area (>50 yds dimension) with either (1) a forested or shrub corridor <100' wide OR (2) a vegetated corridor >100' wide, but with cover >6' taU? *Is the wetland connected to or part ofa riparian corridor betw~n 50-100' wide with scrub/shrub or forest cover connection to other wetlands. ... Is the wetland connected to any other Habitat Area (>50 yds dimension) with a vegetated corridor <100' wide with cover <6' tall? ... Is the wetland and its buffer (if the buffer is <50' wide) completely isolated by development (urban, residential with a density >2/ac, or industrial)? Now add the scores circled (for Q5a-Q5i above) to get a total. Is the total greater than or equal to 22 points? 27 Yes=5 Yes=3 Yes=3 Yes=l Yes=O Yes : CaLlI NO: Cat. ill Page 5 WElLANDS RATING FIELD DATA FORM BACKGROUND INFORMATION: Name ofrater(s):Lisa Palazzi Affiliation(s)Pacific Rim Soil & Water. Inc. Date: At>ri11.2007 Name of Wetland (if known): South Site: PEMlPSS wetland (RU4) Government jurisdiction of wetland: Jefferson Location:: Section 23. Townshit>29N. Rans:e2W SOURCES OF INFORMATION: (check all sources that apply) Site visit:1L USGS Topo map:1L NWI map:_ Aerial Photo:X Soil Survey:X Other:1L Describe: NOSCIWDFW ~ WHEN THE FIELD DATA FORM IS COMPLETE, ENTER CATEGORY HERE: II Points: 26 Q.t. High Quality Natural Wetland. Answer this question if you have adequate information or experience to do so. If not, find someone with the expertise to answer the questions. Then, if the answer to questions la, lb, and Ie are all NO, contact the Natural Heritage Program ofDNR. la. Human-caused disturbances. Is there significant evidence of human -caused changes to topography or hydrology of the wetland as indicated by any of the following conditions? (Consider only changes that may have taken place in the last 5 decadesJ lal. Upstream watershed> 12% impervious >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> la2. Wetland is ditched and water flow is not obstructed >>>>>>>>>>>>>>>>>>>>>>>>>>>> 183. Wetland has been graded, filled, logged >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> la4. Water in wetland is controlled by dikes, weirs, etc >>>>>>>>>>>>>>>>>>>>>>>>>>>>> 185. Wetland is grazed >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> la6. Other indicators of disturbance (list below) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The wetland is manllJl;ed as 'Pasture. adiacent to 2-lane paved road and old fannstead lb. Are there populations of non-native plants which are currently present, covering more than 10% of the wetland, and appearing to be invading native populations? Briefly describe any non- native plant populations and information sources: Reed canarv~ss Ie. Is there evidence of human -caused disturbances which have visibly degraded water quality. Evidence of the degradation of water quality may include: direct (untreated) runoff from roads or parking lots; presence or historic evidence of waste dumps; oily sheens; the smell of organic chemicals; or livestock use. Briefly describe: Q.2. Irreplaceable Ecological Functions: Does the wetland: - have at least 1/4 acre of organic soils deeper than 16 inches, and the wetland is relatively undisturbed; (NOTE; Jfthe answer is NO because the wetland is disturbed, briefly describe the disturbance. >>>>>>>>>>>>>>>>> - OR have a forested class greater than 1 acre >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> - OR have characteristics of an estuarine system >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> - OR have eel grass, floating Q! non-floating kelp beds? >>>>>>>>>>>>>>>>>>>>>>>>>>> Circle Answers No: to all, go to Ib Yes Yes:go to Q2 ~ X!!:go to Q2 No X!!:go to Q2 No Yes:go to Q2 No Yes:goto Q2 No Yes:goto Q2 No X!!:go to Q2 No: go to Ie Yes:go to Q2 No : Possible Cat. 1: contact DNR- Nat Her. Prgrm No to all: go to Q.3. Yes:go to 2a No Yes:go to 2b ~ Yes:go to 2c No Yes:go to 2d No OCT ".. 4 2007 Pagel 28. Bogs and Fens: Are any of the three following conditions met for the area of organic soil? 2a.l Are Sphagnum mosses> 30% groundcover AND is cover of species from Table 3 <1O%? - Is the area of Sphagnum mosses and deep organic soils >Yz acre? Yes: Cat.! - Is the area of Sphagnum mosses and deep organic soils 1/4- 112 acre? Yes: Cat. n: No: go to 2a.2 2a.2 Is there an area of organic soil which has an emergent class with at least one species from Table 2 , AND is cover of species from Table 3 <1O%? - Is the area of herbaceous plants and deep organic soils> Yz acre? Yes: Cat. I - Is the area of Sphagnum mosses and deep organic soils 1/4-1/2 acre? Yes: Cat.n: No: go to 2a.3 28.3 Is the vegetation a :mixtw-e of only herbaceous plants and Sphagnum mosses with no scrub/shrub or forested classes? - Is the area of herbaceous plants, Sphagnum, and deep organic soils >Yz acre? Yes: Cat. I - Is the area of herbaceous plants, Sphagnum, and deep organic soils 1/4-112 acre? Yes: Cat. n: No: go to Q3 Q.2b. Mature Forested Wetlands Yes: Cat. I 2b.t Does 50% of the cover ofupper forest canopy consist of evergreen trees older than 80 years or deciduous trees older than 50 years? (N01E: Size of trees cannot be used as a surrogate for No: go to 2b.2 age.) Yes: goto2b.3 2b.2 Does 50% of the cover of forest canopy consist of evergreen trees older than 50 years, AND No: go to Q3 is the structural diversity of the forest high, as characterized by an additional layer of trees 20-49' Yes: Cat. I taIl, shrubs 6-20' WI, , and a herbaceous gtoundcover? 2b.3 Does <25% of the areal cover in the herbaceous! groundcover or the shrub layer consist of No: go to Q3 invasive or exotic plant snecies from the n.19 list? Q.2c. Estuarine Wetlands Yes: Cat. I 2c.t Is the wetland listed as National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park, or Educational, Environmental, or Scientific Reserves No: go to 2c.2 designated under WAC 332-151? Yes: Cat. I 2c.2 Is the wetland >5 acres; (incbuling tll'etlS on both sides of the SfIImon Creek outlet) NOTE: If an area contains patches of salt tolerant vegetation that are <600 feet apart and separated by mudflats that go dry on a Mean Low Tide, OR separated by tidal channels that are <100 feet wide, then all the vegetated areas are to be considered together in calculating the wetland area. Yes: go to 2c.3 - OR is the wetland 1-5 acres; - OR is the wetland <1 acre? Yes: go to 2cA 2c.3 Does the wetland meet at least 3 of the following 4 criteria? Yes: Cat. I - minimum existing evidence of human-related disturbance, such as diking, ditching, filling, cultivation, grazing, or the presence of non-native plant species; - surface water connection with tidal saltwater or tidal freshwater; - at least 75% of the wetland has a 100' buffer ofungrazed pasture, open water, shrub or forest, - has at least 3 of the following features: low marsh; high marsh; tidal channels; lagoon( s); woody debris; or contiguous freshwater wetland. No: CaUl 2c.4 Does the wetland meet all four criteria under 2c.3? Q.2d. Eel Grass and Kelp Beds Yes: Cat. I 2d.l Are eel grass beds present? No: go to 2d.2 2d.2 Are there floating or non-floating kelp bed( s) present with >50% macro-a1gal cover in the Yes: Cat. I month of A1U!Ust or SP.Tltember? No: Cat. II Page 2 Q.3. Category IV Wetlands 3a. Is the wetland less than 1 acre AND hydrologically isolated AND comprised of one vegetated class that is dominated (>80% areal cover) by one species from Table 3 or Table 47 3b. Is the wetland less than 2 acres AND hydrologically isolated AND with one vegetated class AND with >90% area cover of any combination of species from Table 37 3c. Is the wetland excavated from upland AND comprised of a pond smaller than 1 acre without a surfitce water coxmection to streams, lakes, rivers, or other wetlands AND with <0.1 acres of vegetation? Q.4. Significant Habitat Value. Answer all questions and enter data requested. 4a. Estimate total wetland area, selecting from choices in the near-right colwnn., and score in the far column: Enter wetland acreage here: -20+ acres, and source: Could be lar~er than estimate. inclutiitut offsite wetland areas west of Salmon Creek and tnbutaries~ ocular estimate from aerial uhotos 4b. Wetland classes: Circle the wetland classes below that qualify by being greater than 14 acre in size for each class, and in the case of Open Water, being that size for more than I month at a time. Open Water Aquatic Beds Emement Scrub-shrub Forested Count the number of wetland classes above, then score according to the columns to the right 4c. Plant Species Diversity. For each wetland class (at right) that qualifies in 4b above, count the number of different plant species you can find that cover more than 5% of the ground. It is not necessary to name them. Score in column at far right Class Aquatic Bed>>>>> Note: Any plant species with a cover of> 5% qualifies for points within a class, even those that are not of that class -- i.e. a grass species can qualify for points in a forested class. Emergent>>>> Scrub Shrub>>>>>> Forested>>>>> 4d. Structural Diversity. If the wetland has a forested class, add I point if each of the following classes is present within the forested class, AND is la:rger than 1/4 acre in size: Please note that these systems are o./fsite, so we assuming these conditions from aerial photo indications; cannot check directly. - trees >50' tall - trees 20'-49' tall - shrubs - herbaceous groundcover Also, add 1 point if there is any "open water" or " aquatic bed" class immediately next to the forested area (i.e., there is no scrub/shrub or emergent vegetation between them). Yes: Cat IV ~: go to 3b Yes: Cat. IV No: go to 3c Yes: Cat. IV No: go to Q4 Circle scores that qualify acres noints >200 6 40-200 5 10-40 4 5-iO 3" 1-5 2 0.1-1 1 <0.1 0 #of classes noints --y- 0 2 3 "3 "6 4 8 5 10 !LmI! uoints 1 0 2 1 3 2 >3 3 1 0 2-3 1 4-5 2 ~ 2 1 0 2 1 3-4 2 >4 2 1 0 2 1 3-4 2 >4 3 Yes=l No Yes""l No Yes""l No Yes""l No Yes""LNo. OC1'- 4 Page 1 4e. Class Interspersion: Decide from the diagrams below whether intersnersion between wetland classes is high. moderate, low, or none. _:'f:AW.t~: ......:..:.:.:.:....... lovv lo,^, noOn... ....,. ............. ..... rnodera:te moderate high 1 4f. Habitat Features Answer questions below, circle features that apply, and score to right: .Js there evidence that the open or standing water was caused by beaver activity? >>>>>>>>>>>>>> *Js a heron rookery located within 300'? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .Ate raptor nest(s) located within 300'? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> .Ate there at least 3 standing dead trees (snags) pee acre >10" DBH (in or adjacent to the wetland)?>> *Are there at least 3 downed logs pee acre with a diameter of>6" for at least 10' in length (in or adjacent to..)? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> · Are there areas (vegetated or unvegetated) within the wetland that are ponded for at least 4 months of the year, AND the wetland bas not qualified as having an open water class in Q4b (i.e. <114 acre in size)?>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 4g. Connection to Streams (Score one answer only.) 4g.1 Does the wetland provide habitat for fish at any time of year AND does it have a perennial swface water connection to a fish bearing stream? 4g.2 Does the wetland provide fish habitat seasonally AND does it have a seasonal swface water connection to a fish bearing stream? 4g.3 Does the wetland function to export organic matter through a swface water connection at all times of the year to a perennial stream? 4g.4 Does the wetland function to export organic matter through a swface water connection to a stream on a seasonal basis? 4h. Buffers: Score the existing buffers on a scale of 1-5 based on the following four descriptions. If the conditions of the buffers do not fit, score a point higher or lower, depending on whether the buffers are more or less degraded. * Forest, scrub, native gtassland or open water buffers are present with widths >100' around 95% of the circumference. · Forest, scrub, native grassland or open water buffers are present with widths> 100' around >50% of the circumference, OR the same buffers are present with widths >50' arOlmd >50% of the circumference. · Forest, scrub, native grassland or open water buffers are present with widths >100' around >25% of the circumference, OR the same buffers are present with widths >50' around >95% of the circumference. · No roads, buildings or paved areas within 100' of the wetland for >95% of the circumference. * No roads, buildings or paved areas within 25' of the wetland for >95% of the circumference OR No roads, buildings or paved areas within 50' of the wetland for >50% of the circumference · Paved areas, industrial areas or residential construction (with less than 50' between houses) are <25' from the wetland for more than 95% of the circumference. High=3 Moderate=2 Low=l None=O Yes=2 No Yes=1 No Yes=l No? Yes=l No Yes=1 No Yes=2 No Yes=6 No Yes=4No Yes=4No Yes=2No Score=5 Score=3 Score=2 Score=2 Score= 1 Score=O Page 4 4i. Connection to Other Habitat Areas: Select the description which best matches the site being evaluated. · Is the wetland connected to or part of a riparian corridor at least 100' wide connecting two or more wetlands; OR is there an upland connection present >100' wide with good forest or shrub cover (>25% cover) connecting it with a Significant Habitat Area (>300 yds dimension or >20 ac if OW)? · Is the wetland connected to any other Habitat Area (>50 yds dimension) with either (I) a forested or shrub corridor <100' wide OR (2) a vegetated corridor >100' wide, but with cover >6' tall? *Is the wetland connected to or part of a riparian corridor between 50-100' wide with scrub/shrub or forest cover connection to other wetlands. * Is the wetland connected to any other Habitat Area (>50 yds dimension) with a vegetated corridor <100' wide with cover <6' tall? · Is the wetland and its buffer (if the buffer is <50' wide) completely isolated by development (urban, residential with a density >21ac, or industrial)? Now add the scores circled (for Q5a-Q5i above) to get a total. Is the total greater than or equal to 22 points? 26 ~ Yes=3 . Yes=3 Yes=l Yes=O Yes: CaUl NO: Cat. ill OCT-P~e!)07 LJtt APPENDIX IV. PROJECT MAPS JB am o Q) 80' s.;. a. ~ m a:l ~ (J) > 8 U) Ci c:~ .S! t! !~ ~<V 0(1) E! e~ -G) ~;! rn . ~l &m .c! i~ Cm Q)"t: JIl:_ S:ii ~~ tV _ et'J 2i .E E 0<( ~€ g~ := ~:i ~~ o~ 00 ~~ (G@ ~d ~~ o~ ~~ 'O!l ~~ ~~ ~E t>>! "t:(Q <~ gg ~~~ !~O 1;;lC)O ~~~ ~Q<( 2s~ oms:: ~~O i~~ ~!> ~~~ ~;.g ~ ~~ ~8=~ mE~ !.s~ ~i~ 1:(.)(1) - . t: ~~~ ~:a =a,f!@ Q...tI - ~l:! ~~~ ~a:~ "co co_ ~~gg oo~_ ~e-S= ~S ~ :i 8~~~ 45~';a! 00;;15 ~~~~ ~~~e OC/J~CD ~SG>g ~~~e ----------~~:11! ---. ""g - El --:;-- < :il~ ~. ~, rrr-' .~\ rr~ - --@l~ '"i€i Ir- -- _, . .., o. r \ \ l!:-" --- .g,~IH1, z ; 11 11,- '~J.9~=1 I \ '1.".,1) l 4 1)1007 g- ~d (O~~ \ ,. "c\-:t: \ '\ ! T L ~ .. (?ITl \ q DC \ \ . , ",t \ _.-----~ \ -" dtr. Map Unit Map Unit Name AgE Agnew silt loam, 30 to 50 percent slopes AlC Alderwood gravelly sandy loam, 0 to 15 percent slopes AlD Alderwood gravelly sandy loam, 15 to 30 percent slopes ArnC Alderwood gravelly loam, 0 to 15 percent slopes BdD Beausite-Alderwood complex, 0 to 30 percent slopes Bh Belfast silt loam, heavy variant cm Cassolary sandy loam, 15 to 30 percent slopes CrnC Clallam gravelly s~dy loam, 0 to 15 percent slopes CmD Clallam gravelly sandy loam, 15 to 30 percent slopes Cu Cut and fill land EvC Everett gravelly sandy loam, 0 to 15 percent slopes HuC Hoypus gravelly loamy sand, 0 to 15 percent slopes HuD Hoypus gravelly loamy sand, 15 to 30 percent slopes HvC Hoypus gravelly sandy loam, 0 to 15 percent slopes Lu Lummi silt loam Mm McMurray and Mukilteo peats SuB Swantown gravelly loam, 0 to 8 percent slopes Td Tidal marsh TuC Tukey gravelly loam, 0 to 15 percent slopes W Water Discovery Bay LiDAR coverage: Note old drainage ditch patterns and old scars of meandering stre~channels that connect the Snow Creek and Salmon Creek systems ------.------------, f ~ ri';:~ n \\ rJ re r""'" I i r~\ 1 I ~ , H }, V / i (~ II i-.. '\ \. ! I I . l~ ~, \;'" ~ I I!LJjr-----II! 1\.. Ilr'>\1 III III \ Ii \ \ \ OCT - 4 2007 II U j I p.J 's). i t i..-/ \ \ I , --".._--,~ J . COUNTY ~~.~ ' .1,_~~~1f.VE~~OP;\,1EN~ ~ ~~ ,~1!'i 1:;i II 11it,~~ v~. ~ ~ }J~r"-r~ <Srt~ rJ~ ~Jt~ U~1-f:' 1 J . 1 { EJ =I- J 70 / / I / ."", .' /" MLL~ /' ~ \. I 60 o 60 120 SCALE: 1" == 120* I 180 '~ REFERENCE NO. APPUCANT: WASHINGTON DEPT. of FISH & WILDLIFE SALMON CREEK, DISCOVERY SAY NORTH SITE WETLANDS AND SOIL LOGS AT: DISCOVERY BAY WASHINGTON DATE:1 /29/2007 SHEET 2 OF' 4 " . -.Y It o ~ 1CCL ) 8 ,/ ...~ 0 [E(C[E~ o / ~ 1. ENltRE AREA OF CONSlRUCllON HAS BEEN DElINEATED AS WETLANDs.. 2. SOIL lOGS AREA AS SHOWN ON DRAWING. ~tt'~ LJ ttit l~ - "ik // / / / ~ 1<trfi~ {/~. 6- (aUAj ~/ . f~ttj/~ffe ,.,) 60 o 60 120 180 SCALE: '1" ;: 120' 'COUNTY DEP~ .:-HTY DEVELOPMENT MLLW' REFERENCE NO. APPUCANT: WASHINGTON DEPT. of FlSH &: WILDLIFE SALMON CREEK. DISCOVERY SAY SOUTR SITE WETlANDS PLAN AT: DISCOVERY BAY I WASHINGTON DATE:1 /31 /2007 SHEET 3 OF 4 ENG. PROJECT NO. IN: F1 7: 06-1 .., fiCO 1~~d1'~ . '~):r~ !~~. fi;i~. , ~{ I r-,.-'..r,.....,--r pl.. f' r.} 'tJq-e ~ Ed~~ 'i' CAlLouts- \!!J 1. . CONTRACTOR TO PROVIDE HAUL ROAD DESlGN~ ALL MATERIAlS TO BE REMOVED AT COMPLETION OF PROJECT. 2.. CONTRACTOR TO DESJGN AND INSTALL TEMPORARY BRIDGE AND ABUTMEN~ BRIDGE TO BE REMOVED UPON COMPLETION OF HAUL 3.. INSTALL SILT FENCE AT EDGE OF FLAGGED WE1lANDS. '~j Vtlit LJ. ~tt~~ Uh. 6 1<~T'''1 U...rr 6 MLLW ~ , I 9'{ 1 1 I 60 o SCALE: 60 \20 1" = 120' I 180 NOTES- ,. AREA OF AlL ;:: 160.235 SF. AVERAGE All DEPTH TO BE 4 FEET. 2. MAXIMUM ALL SLOPE TO BE 3H:1V. GRADING TO PROVIDE POSITIVE DRAINAGE. 3. HYDROSEED SITE 1M MEDI A TEL Y AFTER PROJECT COMPLETION 4. HAUL ROAD ROCK TO BE REMOVED. SCARIFIED AND HYDROSEEDED. ENG. PROJECT NO. IN: F17: 06-1 REFERENCE NO. APPUCANT: WASHINGTON DEPT. of FISH & WILDLIFE SALMON CREEK, DISCOVERY SAY SPOILS SITE WETLANDS AT: DISCOVERY BAY , WASHINGTON DATE:1 /29/2007 SHEET 4 OF 4