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HomeMy WebLinkAboutEx03_Stream_Study Prepared for: DOWL 8410 154th Avenue NE, Suite 120, Redmond WA 98052 March 31, 2020 Standard Stream Study Narrative Apron A Stormwater Improvement Project Renton, Washington The Boeing Company Wood Project #PS20203650 RECEIVED 04/16/2020 amorganroth PLANNING DIVISION Exhibit 3 DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 ‘Wood’ is a trading name for John Wood Group PLC and its subsidiaries Wood Environment & Infrastructure Solutions, Inc. 3500 188th Street SW, Suite 601 Lynnwood, WA 98037 USA T: 206-342-1760 www.woodplc.com March 31, 2020 Travis Neu, PE Project Manager DOWL 8410 154th Avenue NE, Suite 120 Redmond, WA 98052 Subject: Standard Stream Study Narrative Apron A Stormwater Improvement Project Renton, Washington Dear Mr. Neu, Wood Environment & Infrastructure Solutions, Inc., is pleased to provide the enclosed report of our results for the Stream Study performed in support of the Apron A Stormwater Improvement Project at the Boeing-Renton facility. Sincerely, Wood Environment & Infrastructure Solutions, Inc. Jon Chalfant, PLA, ASLA Landscape Architect Theresa Price Environmental Planner/Botanist jon.chalfant@woodplc.com theresa.price@woodplc.com JC/TP:ke \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\boeing standard stream study narrative_sx.docx Enclosure: Standard Stream Study Narrative Exhibit 8 DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Wood Project #PS20203650 | The Boeing Company | March 31, 2020 Page i \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\boeing standard stream study narrative_sx.docx Table of contents 1.0 Introduction ........................................................................................................................................................................... 1 2.0 Project Description .............................................................................................................................................................. 1 2.1 Apron A Stalls A3-A7 ......................................................................................................................................... 1 2.2 Parking Lot W1 ..................................................................................................................................................... 1 3.0 Renton Municipal Code 4-8-120C ................................................................................................................................ 1 4.0 Standard Stream Study Narrative .................................................................................................................................. 3 4.1 Stream Classification .......................................................................................................................................... 3 4.2 Vegetative Cover ................................................................................................................................................. 3 4.3 Ecological Function ............................................................................................................................................ 4 4.4 Fish and Wildlife .................................................................................................................................................. 4 4.4.1 Mammals ............................................................................................................................................... 4 4.4.2 Birds ......................................................................................................................................................... 5 4.4.3 Amphibians and Reptiles ................................................................................................................. 5 4.4.4 Fish ........................................................................................................................................................... 6 4.5 Measures to Protect Trees and Vegetation .............................................................................................. 7 4.6 No Net Loss of Ecological Function ............................................................................................................. 7 5.0 References .............................................................................................................................................................................. 7 List of tables Table 1 Small Mammals Reported to Occur along the Lower Cedar River Table 2 Birds Reported to Occur along the Lower Cedar River Table 3 Non-native Fish Species Introduced into the Lake Washington/Lake Union System List of figures Figure 1 Vicinity and Site Maps Figure 2 Aerial Photo of Project Locations Figure 3 Apron A Site Stormwater Improvements, Plan View—North Figure 4 Apron A Site Stormwater Improvements, Plan View—Central Figure 5 Apron A Site Stormwater Improvements, Plan View—South Figure 6 Parking Lot W1 Site Stormwater Improvements, Plan View List of appendices Appendix A Apron A and Parking Lot W1 Photo Log DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Wood Project #PS20203650 | The Boeing Company | March 31, 2020 Page 1 of 7 \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\boeing standard stream study narrative_sx.docx 1.0 Introduction The Boeing Company (Boeing) proposes site improvements to the stormwater management facilities at two locations adjacent to Apron A at the Boeing Renton plant in Renton, Washington. As part of permit applications for facility improvements adjacent to shorelines, the Renton Municipal Code (RMC) requires a stream narrative report to document existing conditions and describe measures to be taken to protect shoreline resources. This Standard Stream Study Narrative report has been prepared to meet requirements of the RMC. 2.0 Project Description This project includes two phases: Apron A Stalls A3-A7 and the W1 Parking Lot (Figures 1 and 2). 2.1 Apron A Stalls A3-A7 The proposed Apron A site improvements include a stormwater conveyance system as well as water quality and fuel spill containment systems to capture and treat the runoff from the eastern quarter of stalls A3-A7. Locations of proposed site improvements for the Apron A project phase are depicted on Figures 3–5. The proposed improvements include installation of: • approximately 810 linear feet (LF) of slot drain, • catch basins, • high-density polyethylene (HDPE) storm drainage pipe, • an oil–water separator, • enhanced water quality treatment, • connection to the existing A7 stall drainage, and • replacement and upgrades to the existing fuel spill valves and controls within stall A7. 2.2 Parking Lot W1 The proposed Parking Lot W1 site improvements include stormwater conveyance and water quality systems to capture the runoff from the W1 parking lot. The proposed improvements include the installation of approximately six separate modular wetland water quality units along with a conveyance system for the treated water and connection to the existing W1 parking lot outfall. Locations of proposed site improvements for the Parking Lot W1 project phase are depicted on Figure 6. 3.0 Renton Municipal Code 4-8-120C Under the Renton Municipal Code (RMC) 4-8-120C (Submittal Requirements—Specific to Application Type: Land Use Applications), the City requires the following environmental reports to be included with Boeing’s permit application submittal for the proposed project: Stream or Lake Study, Standard: The mitigation plan must ensure compensation for impacts that result from the chosen development alternative or from a violation as identified in the impact evaluation. A mitigation plan must include: a. Site Map: Site map(s) indicating, at a scale no smaller than one inch equals twenty feet (1" = 20') (unless otherwise approved by the Administrator): DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Wood Project #PS20203650 | The Boeing Company | March 31, 2020 Page 2 \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\boeing standard stream study narrative_sx.docx i. The entire parcel of land owned by the applicant, including one hundred feet (100') of the abutting parcels through which the water body(ies) flow(s); ii. The OHWM determined in the field by a qualified consultant pursuant to RMC 4-3-050G7 (the OHWM must also be flagged in the field); iii. Stream or lake classification, as recorded in the City of Renton Water Class Map as identified in the City of Renton’s COR Maps, the City’s online interactive mapping application available through the City’s website, or RMC 4-3-090 (if unclassified, see “Supplemental Stream or Lake Study”); iv. Topography of the site and abutting lands in relation to the stream(s) and its/their buffer(s) at contour intervals of two feet (2') where slopes are less than ten percent (10%), and of five feet (5') where slopes are ten percent (10%) or greater; v. One hundred (100) year floodplain and floodway boundaries, including one hundred feet (100') of the abutting parcels through which the water body(ies) flow(s); vi. Site drainage patterns, using arrows to indicate the direction of major drainage flow; vii. Top view and typical cross-section views of the stream or lake bed, banks, and buffers to scale; viii. The vegetative cover of the entire site, including the stream or lake, banks, riparian area, and/or abutting wetland areas, extending one hundred feet (100') upstream and downstream from the property line. Include position, species, and size of all trees at least six inch (6") caliper and larger, fifty four inches (54") above grade, and the location, size and species of all protected trees on the site that are within one hundred feet (100') of the OHWM, and the location of any measures to protect trees on and abutting the site; ix. The location, width, depth, and length of all existing and proposed structures, roads, stormwater management facilities, wastewater treatment and installations in relation to the stream/lake and its/their buffer(s); and x. Location of site access, ingress and egress; and xi. Location of where all mitigation or remediation measures have taken place on the site, or are proposed to take place. b. Grading Plan: A grading plan prepared in accordance with RMC 4-8-120D7, and showing contour intervals of two feet (2') where slopes are less than ten percent (10%), and of five feet (5') where slopes are ten percent (10%) or greater. c. Stream or Lake Assessment Narrative: A narrative report on eight and one-half inch (8.5") by eleven inch (11") paper shall be prepared to accompany the site plan and describes: i. The stream or lake classification as recorded in the City of Renton’s COR Maps, the City’s online interactive mapping application available through the City’s website, for the City of Renton Water Class or RMC 4-3-090; ii. The vegetative cover of the site, including the stream or lake, banks, riparian area, wetland areas, and flood hazard areas extending one hundred feet (100') upstream and downstream from the property line, including the impacts of the proposal on the identified vegetation; iii. The ecological functions currently provided by the stream/lake and existing riparian area and the impacts of the proposal on the identified ecological functions; DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Wood Project #PS20203650 | The Boeing Company | March 31, 2020 Page 3 \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\boeing standard stream study narrative_sx.docx iv. Observed or reported fish and wildlife that make use of the area including, but not limited to, salmonids, mammals, and bird nesting, breeding, and feeding/foraging areas, including the impacts of the proposal on the identified fish and wildlife; v. Measures to protect trees, as defined per RMC 4-11-200, and vegetation; and vi. For shorelines regulated under RMC 4-3-090, Shoreline Master Program, the study shall demonstrate if the proposal meets the criteria of no net loss of ecological functions as described in RMC 4-3-090D2. If the proposal requires mitigation for substantial impacts to the existing vegetation buffer in order to demonstrate no net loss of ecological functions, a supplemental stream or lake study is required. (Ord. 5137, 4-25-2005; Ord. 5633, 10-24-2011; Ord. 5676, 12-3-2012; Ord. 5757, 6-1-2015). This report fulfills requirement c. above to provide a Stream Assessment Narrative. 4.0 Standard Stream Study Narrative This section presents the standard stream study narrative, providing information about existing habitat conditions and functions of the lower Cedar River (LCR) adjacent to the proposed project site. The project site is defined as those areas of proposed stormwater improvements within the 200-foot shoreline zone adjacent to the LCR. 4.1 Stream Classification According to RMC 4-3-050Q4 (City of Renton Water Class Map), the LCR in the vicinity of the project site is a type S water. Type S: Waters are inventoried as “Shorelines of the State” under the Revised Code of Washington (RCW), Chapter 90.58. These waters are regulated under Renton’s Shoreline Master Program Regulations, RMC 4-3-090. 4.2 Vegetative Cover Wood Environment & Infrastructure Solutions, Inc. (Wood), biologist, Theresa Price, conducted a site survey on March 19, 2020, to assess vegetative cover along the LCR shoreline adjacent to and within 100 feet upstream and downstream of the proposed project site. Appendix A provides a photographic log depicting habitat conditions and vegetation along the riparian zone of the west bank of the LCR adjacent to the project site. Figure A-1 in the photo log provides an aerial image showing the locations where the photos were taken. Both project sites are on the west shoreline of the LCR and the Renton Municipal Airport and consist primarily of concrete and asphalt surfaces. Limited landscape plantings are located between the paved roadway (East Perimeter Road) and Boeing parking lot W1 (Appendix A, Photos 6 and 8). The riparian zone along the west bank of the LCR adjacent to and within 100 feet upstream and downstream of the two Boeing project sites comprises a relatively narrow (approximately 20 feet wide or less) vegetated band consisting of limited trees and shrubs, and grass/herbaceous groundcover. An 8-foot-high concrete flood-control wall abuts the riverbank and confines the width of the riparian zone in this area along the river (Appendix A, Photos 4, 5, and 7). The paved East Perimeter Road abuts the west side of this flood-control wall. Vegetation within the riparian zone consists primarily of unidentified herbaceous weedy groundcover and grasses (Appendix A, Photos 1-4, 9-12). Several small clusters of small trees (all of which are less than 4 inches diameter at breast height [DBH]) and shrubs were observed along the west bank of the LCR within the project site (Appendix A, Photos 1-4, 9-12). A small cluster of alder trees was observed on the DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Wood Project #PS20203650 | The Boeing Company | March 31, 2020 Page 4 \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\boeing standard stream study narrative_sx.docx west bank of the LCR approximately 85 feet south of the Parking Lot W1 project site, on the east side of the concrete flood-control wall (Appendix A, Photo 9). No trees with trunks greater than or equal to 6 inches DBH are located within 100 feet of the project site on the west bank of the LCR. No trees are located west of the concrete flood-control wall. 4.3 Ecological Function Riparian habitats have important ecological functions other than providing habitat for birds and other wildlife. Healthy riparian vegetation protects banks from erosion, influences in-channel aquatic habitats, maintains favorable water temperature for fish through shading, filters runoff, and provides nutrients. Riparian vegetation creates meanders, increases habitat complexity, and can protect against scour during severe storm events. Riparian habitats link upland and aquatic habitats. Upland habitats have a critical role in watershed function and affect riparian and aquatic habitats, particularly in drier, low-elevation sites. The riparian zone along the west bank of the LCR adjacent to and within 100 feet upstream and downstream of the two Boeing project sites comprises a relatively narrow vegetated band consisting of limited trees and shrubs, and grass/herbaceous groundcover. The west bank of the LCR in this area is separated from the project sites by an 8-foot-tall concrete flood-control wall. The primary ecological functions provided by riparian vegetation along the east and west banks of the LCR within 100 feet upstream and downstream of the project sites include: • Nesting and foraging habitat for birds and small mammals, • Input of terrestrial insects from overhanging vegetation, • Input of allochthonous organic matter (via leaf fall), • Limited erosion control, and • Limited habitat complexity. The LCR is a manmade channel created in 1912 when the river was diverted as a tributary to the former Black River directly to Lake Washington. The LCR is channelized and substantially altered, so that there is very limited riparian area to provide all the potential ecological functions of an unaltered habitat. Riparian vegetation provides very little, if any, shading to the LCR because of the dominance of small shrubs and the lack of large trees. Both banks of the river in the project areas are contained within levees and/or flood-control walls, so there is no potential for the creation of meanders or off-channel habitat. Because of extensive development along both banks of the river in the project area (Boeing to the east and west and the Renton Municipal Airport to the west), there is little, if any, transition between riparian and upland habitats. 4.4 Fish and Wildlife This section addresses fish and wildlife species that may use the LCR in the vicinity of the project site. 4.4.1 Mammals No mammals were observed during the site visit. Given the level of development and paved surface area in the project area, it is likely that only small mammals such as beaver, squirrels, mice, rats, voles, moles, raccoons, opossums, muskrats, and river otters use the riparian areas along the LCR shoreline adjacent to and within 100 feet upstream and downstream of the project areas. Richter and Azous (1997), conducting small-mammal surveys in a wetland along the LCR, reported 13 species of mammals (Table 1). These, as DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Wood Project #PS20203650 | The Boeing Company | March 31, 2020 Page 5 \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\boeing standard stream study narrative_sx.docx well as other small mammals common to the Puget lowlands, may occur along the LCR adjacent to the project site. 4.4.2 Birds Richter and Azous (1997) conducted bird surveys in a wetland of the LCR between late May and mid-June in 1988, 1989, 1991, 1992, and 1995 to determine distribution and relative abundance. They reported 58 species of birds (Table 2). King County also reported bird species observations in 2008 and identified changes in bird populations and habitat preferences (King County, 2008). Several bird species were observed during the site visit, including several species not reported by Richter and Azous (1997). Birds observed during the site visit included American crow (Corvus brachyrhynchos), American robin (Turdus migratorius), mallard ducks (Anas platyrhynchos), bald eagle (Haliaeetus leucocephalus), and several unidentified songbird species. It is likely that all of these birds, as well as other species of birds common to the Puget lowlands, nest or forage in the project vicinity. 4.4.3 Amphibians and Reptiles No amphibians or reptiles were observed during the site visits; however, it is likely that amphibian (e.g., Anurans) and reptile species (e.g., turtles) found in the Lake Washington basin may use the areas within the site vicinity. Richter and Azous (1997) reported the occurrence of the following amphibian species in the LCR and in King County (2016): • Ensatina (salamander) (Ensatina eschscholtzii) • Long-toed salamander (Ambystoma macrodactylus) • Northwestern salamander (A. gracile) • Pacific tree frog (Pseudoacris regilla) • Red-legged frog (Rana aurora) • Western red-backed salamander (Plethodon vehiculum) • Bullfrog (Rana catesbeiana) • Pacific giant salamander (Dicamptodonitdae) • Roughskin newt (Taricha granulosa) • Western toad (Anaxyrus boreas) No information was located listing reptile species occurring along the LCR in the project vicinity; however, reptiles listed for King County (King County, 2016, 2008) that could occur in the project vicinity include: • Common garter snake (Thamnophis sirtalis) • Northern alligator lizard (Elgaria coerulea) • Northwestern garter snake (T. ordinoides) • Painted turtle (Chrysemys picta) • Rubber boa (Charina bottae) • Slider (Trachemys scripta) • Western fence lizard (Sceloporus occidentalis) DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Wood Project #PS20203650 | The Boeing Company | March 31, 2020 Page 6 \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\boeing standard stream study narrative_sx.docx • Western terrestrial garter snake (T. elegans) 4.4.4 Fish No fish were observed in the LCR adjacent to the project sites during the site visit. The Lake Washington system, including the LCR adjacent to the project site, hosts many fish species, including five salmonid species: Chinook salmon (Oncorhynchus tshawytscha), coho salmon (O. kisutch), sockeye/kokanee salmon (O. nerka), coastal cutthroat trout (O. clarki clarki), and steelhead/rainbow trout (O. mykiss) (King County, 2008; WDFW, 2020). Anadromous forms of each of these species use the Cedar River system as migratory, forage, nursery, and spawning habitat. As such, individuals are present in the river both as adults during migrations to spawning grounds and as juveniles (Kerwin, 2001). All of these species occur seasonally in the LCR adjacent to the project site. Additionally, there have been isolated reports of coastal/Puget Sound bull trout (Salvelinus confluentus) and kokanee occurring in the Lake Washington system; however, it is believed that few bull trout occur in the Lake Washington system, if they occur at all. Puget Sound Chinook salmon, Puget Sound steelhead trout, and bull trout are federally listed species under the Endangered Species Act. Nonanadromous forms of winter steelhead (rainbow trout), sockeye (kokanee), and cutthroat trout may also occur in the LCR. Resident rainbow trout spend their entire life in the Lake Washington system. The resident rainbow trout population was sustained with hatchery plants because they rarely successfully reproduce within Water Resource Inventory Area 8; however, releases of hatchery rainbow trout have been all but eliminated. Nonanadromous coastal cutthroat trout also occur in the Lake Washington system and are much more abundant than the anadromous form. Kokanee salmon is the freshwater, resident form of O. nerka. Some progeny from the parents of anadromous sockeye may also remain in Lake Washington for all or a portion of their lives (resident/anadromous sockeye) (Kerwin, 2001). The largest single population of adfluvial bull trout in western Washington is found above Cedar Falls in the upper Cedar River watershed. It is believed that a small number of bull trout pass through the reservoir and downstream hydroelectric facilities to the river reaches below Cedar Falls. However, it is apparently not sufficient to support the establishment of bull trout populations under the current ecological conditions (Corps, 2002). Native char, presumably bull trout, have been observed in the fish ladder viewing pool at the Hiram M. Chittenden Locks as recently as 1997, while isolated reports of native char being caught in or around Lake Washington occur every few years. A large juvenile char, again, presumably a bull trout (~250 millimeter, 3-year-old), was caught in the LCR in July 1998. An adult char was also caught in the LCR in April 1993 (Corps, 2002). Based on this information, occurrence of bull trout in the LCR adjacent to the project site is expected to be extremely limited, if they occur at all. Fish exclusion surveys conducted by Amec Foster Wheeler (now Wood) biologists in June 2013 and June 2014 as part of Boeing’s North Bridge Replacement project on the LCR identified juvenile Chinook and coho salmon, as well as juvenile steelhead/rainbow trout. Other fish species identified during these surveys included slimy sculpin (Cottus asper), three-spined stickleback (Gasterosteus aculeatus), and ammocoetes of an unidentified lamprey species (Petromyzontidae sp.). Species endemic to the Lake Washington system include the northern pike minnow (Ptychocheilus oregonensis), peamouth (Mylocheilus caurinus), sculpins (Cottus spp.), and longfin smelt (Spirinchus thaleichthys) (Weitkamp et al., 2000; Wydoski and Whitney, 2003). Twenty-four non-native fish species (Table 3) have been identified in the Lake Washington/Lake Union system. A number of these species are now believed to be no longer present in the system. Some of these species are known to prey on juvenile DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Wood Project #PS20203650 | The Boeing Company | March 31, 2020 Page 7 \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\boeing standard stream study narrative_sx.docx salmon (e.g., smallmouth bass) while others are potential competitors with juvenile salmonids for food (Kerwin, 2001). 4.5 Measures to Protect Trees and Vegetation The proposed projects will be confined to the Boeing property and will not occur in areas with existing trees or riparian vegetation. All work areas will be separated from riparian areas by an 8-foot-tall flood- control wall. No direct or indirect impacts to riparian vegetation or trees will occur as a result of the proposed projects; therefore, no measures to protect vegetation or trees have been incorporated into the work plan. 4.6 No Net Loss of Ecological Function The project will result in no net loss of ecological function in the riparian zone of the LCR adjacent to and 100 feet upstream and downstream of the project sites. There will be no change in the area of impervious surfaces within the shoreline zone. 5.0 References Corps – see U.S. Army Corps of Engineers Kerwin, J. 2001. Salmon and Steelhead Habitat Limiting Factors Report for the Cedar-Sammamish Basin (Water Resource Inventory Area 8). Washington Conservation Commission, Olympia. King County. 2008. King County Biodiversity Report 2008. King County, Seattle, Washington. http://www.kingcounty.gov/environment/animalsAndPlants/biodiversity/king-county-biodiversity- report.aspx (accessed March 23, 2020). King County. 2016. Herp Species in King County. King County Biodiversity Report 2008. King County, Seattle, Washington. https://www.kingcounty.gov/services/environment/animals-and- plants/biodiversity/defining-biodiversity/species-of-interest/herps.aspx (accessed March 23, 2020). Richter, K.O., and Azous, A.L. 1997. Amphibian distribution, abundance, and habitat use, in Azous, A.L., and Horner, R.R. (eds.), Wetlands and Urbanization – Implications for the Future, final report. Puget Sound Wetlands and Stormwater Management Research Program, Washington State Department of Ecology, Olympia, King County Water and Land Resources Division, Seattle, Washington, and University of Washington, Seattle. http://your.kingcounty.gov/dnrp/library/archive- documents/wlr/wetlands-urbanization-report/wet-rept.pdf (accessed September 1, 2009). U.S. Army Corps of Engineers (Corps). 2002. Montlake Cut Slope Stabilization Project Environmental Assessment Biological Evaluation – Lake Washington Ship Canal, Seattle, Washington. U.S. Army Corps of Engineers, Seattle District, Seattle, Washington. Washington State Department of Fish and Wildlife (WDFW), 2020, SalmonScape. 2017. http://apps.wdfw.wa.gov/salmonscape/map.html (accessed March 23, 2020). Weitkamp, D.E., Ruggerone, G.T., Sacha, L., Howell, J., and Bachen, B. 2000. Factors Affecting Chinook Populations – Background Report. City of Seattle, Seattle, Washington. Wydoski, R.S., and Whitney, R.R. 2003. Inland Fishes of Washington. American Fisheries Society, Bethesda, Maryland, and University of Washington Press, Seattle. DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Tables DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\aprona_sw_streamstudytables.docx Wood Environment & Infrastructure Solutions, Inc. Page 1 of 3 TABLE 1. SMALL MAMMALS REPORTED TO OCCUR ALONG THE LOWER CEDAR RIVER¹ Apron A Stormwater Improvement Project, Renton, Washington Common name Scientific name (Genus species) Common name Scientific name (Genus species) Creeping vole Microtus oregoni Montane shrew Sorex monticolus Deer mouse Peromyscus maniculatus Shrew-mole Neurotrichus gibbsii Ermine Mustela ermine Southern red-backed vole Clethryonomys gapperi Forest deer mouse Peromyscus oreas Townsend’s chipmunk Tamias townsendii Long-tailed vole Microtus longicaudus Trowbridge’s shrew Sorex trowbridgei Marsh shrew Sorex bendirei Vagrant shrew Sorex vagrans Masked shrew Sorex cinereus Note(s) 1.Source: Richter and Azous, 1997. DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Wood Environment & Infrastructure Solutions, Inc. \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\aprona_sw_streamstudytables.docx Page 2 of 3 Table 2. BIRDS REPORTED TO OCCUR ALONG THE LOWER CEDAR RIVER1 Apron A Stormwater Improvement Project, Renton, Washington Common name Scientific name (Genus species) Common name Scientific name (Genus species) American crow Corvus brachyrhynchos Northern pygmy owl Glaucidium gnoma American goldfinch Carduelis tristis Orange-crowned warbler Vermivora celata American robin Turdus migratorius Pine siskin Carduelis pinus Black-capped chickadee Parus atricapillus Pacific-slope flycatcher Empidonax difficilis Belted kingfisher Ceryle alcyon Purple finch Carpodacus purpureus Bewick’s wren Thryomanes bewickii Red-breasted nuthatch Sitta Canadensis Brown-headed cow bird Molothrus ater Red-breasted sapsucker Sphyrapicus ruber Black-headed grosbeak Pheucticus melanocephalus Red crossbill Loxia curvirostra Brewer’s blackbird Euphagus cyanocephalus Red-eyed vireo Vireo olivaceus Brown creeper Certhia Americana Rufous-sided towhee Pipilo erythrophthalmus Black-throated gray warbler Dendroica nigrescens Ruffed grouse Bonasa umbellus Bushtit Psaltriparus minimus Ruby-crowned kinglet Regulus calendula Chestnut-backed chickadee Parus rufescens Red-winged blackbird Agelaius phoeniceus Cedar waxwing Bombycilla cedrorum Sora Porzana Carolina Cooper’s hawk Accipiter cooperii Song sparrow Melospiza melodia Common raven Corvus corax Sharp-shinned hawk Accipiter striatus Common yellow throat Geothlypis trichas Steller’s jay Cyanocitta stelleri Dark-eyed junco Junco hyemalis Swainson’s thrush Catharus ustulatus Downy woodpecker Picoides pubescens Townsend’s warbler Setophaga townsendi European starling Sturnus vulgaris Vaux’s swift Chaetura vauxi Evening grosbeak Coccothraustes vespertinus Violet-green swallow Tachycineta thalassina Fox sparrow Passerella iliaca Virginia rail Rallus limicola Great blue heron Ardea herodias Warbling vireo Vireo gilvus Golden-crowned kinglet Regulus satrapa Western tanager Piranga ludoviciana Hairy woodpecker Picoides villosus Willow flycatcher Empidonax traillii Hermit thrush Catharus guttatus Wilson’s warbler Cardellina pusilla Marsh wren Cistothorus palustris Winter wren Troglodytes hiemalis MacGillivray’s warbler Geothlypis tolmiei Wood duck Aix sponsa Northern flicker Colaptes auratus Yellow warbler Dendroica petechia Note(s) 1. Source: Richter and Azous, 1997. Table lists only species reported by Richter and Azous (1997). Other species have been observed during other investigations and during the field visit on March 19, 2020. DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Wood Environment & Infrastructure Solutions, Inc. \\sea-fs1\wordproc\_projects\20000s\20365 dowl\reports\001\aprona_sw_streamstudytables.docx Page 3 of 3 Table 3. NON-NATIVE FISH SPECIES INTRODUCED INTO THE LAKE WASHINGTON/LAKE UNION SYSTEM¹ Apron A Stormwater Improvement Project, Renton, Washington Common name Scientific name (Genus species) Status American shad Alosa sapidissima Uncommon strays Atlantic salmon Salmo salar Can exceed 1,000 per year Black bullhead Ictalurus melas Extinct Black crappie Pomoxis nigromaculatus Common Bluegill Lepomis macrocheilus Common Brook trout Salvelinus fontinalis Rarely caught Brown bullhead Ictalurus nebulosus Rare, may be extinct Brown trout Salmo trutta No observed reproduction Channel catfish Ictalurus punctatus Rarely caught Cherry salmon Oncorhynchus masou Extinct Common carp Cyprinus carpio Abundant Fathead minnow Pimephales notatus Unknown Goldfish Carassius auratus Intermittent Grass carp Ctenopharengodon idella Triploids only Lake trout Salvelinus namaycush Extinct Lake whitefish Coregonus clupeaformis Extinct Largemouth bass Micropterus salmoides Common Pumpkinseed sunfish Lepomis gibbosus Abundant Smallmouth bass Micropterus dolomieui Common Tench Tinca tinca Abundant Warmouth Lepomis gulosus No observed reproduction Weather loach Misgurnus angillicaudatus No observed reproduction White crappie Pomoxis annularis Uncommon Yellow perch Perca flavescens Abundant Note(s) 1. Source: Kerwin, 2001. DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Figures DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 ApronA_StreamStudyFigures_20200326.xlsxVICINITY AND SITE MAPS Date: 03/30/2020 Proj. No. PS20203650 Figure 1 Standard Stream Study Narrative Apron A Stormwater Improvement Project Renton, WA By: tlp Project Location DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 ApronA_StreamStudyFigures_20200326.xlsxAERIAL PHOTO OF PROJECT LOCATIONS (in yellow) Date: 03/30/2020 Proj. No. PS20203650 Figure 2 Standard Stream Study Narrative Apron A Stormwater Improvement Project By: tlp Parking Lot W1 Apron A Site Improvements DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 ApronA_StreamStudyFigures_20200326.xlsxDate: 03/30/2020By: tlpProj. No. PS20203650Figure 3APRON A SITE STORMWATER IMPROVEMENTS, PLAN VIEW - NORTHStandard Stream Study Narrative Apron A Stormwater Improvement ProjectRenton, WADocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 ApronA_StreamStudyFigures_20200326.xlsxDate: 03/30/2020By: tlpProj. No. PS20203650Figure 4APRON A SITE STORMWATER IMPROVEMENTS, PLAN VIEW - CENTRALStandard Stream Study Narrative Apron A Stormwater Improvement ProjectRenton, WADocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 ApronA_StreamStudyFigures_20200326.xlsxDate: 03/30/2020By: tlpProj. No. 20203650Figure 5APRON A SITE STORMWATER IMPROVEMENTS, PLAN VIEW - SOUTHStandard Stream Study Narrative Apron A Stormwater Improvement ProjectRenton, WADocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 ApronA_StreamStudyFigures_20200326.xlsxDate: 03/30/2020By: tlpProj. No. 20203650Figure 6PARKING LOT W1 SITE STORMWATER IMPROVEMENTS, PLAN VIEWStandard Stream Study Narrative Apron A Stormwater Improvement ProjectRenton, WADocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Appendix A APRON A AND PARKING LOT W1 PHOTO LOG DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 ApronA_StreamStudyFigures_20200326.xlsxPHOTO POINTS ADJACENT TO PROJECT SITE Date: 03/30/2020 Proj. No. 20203650 Figure A-1 Standard Stream Study Narrative Apron A Stormwater Improvement Project By: tlp 1, 2 3, 4 5, 6 7, 8 9 10, 11 12 DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Project # PS20203650 | The Boeing Company | March 31, 2020 Page 1 of 6 c:\users\kelly.eames\desktop\appendix a photolog.docx Appendix A. Apron A and Parking Lot W1 Photo Log Photo 1 North at Apron D bridge – Oregon grape, young cottonwood, unidentified grasses, weeds Photo 2 East at Apron D bridge – Cottonwood saplings, red osier dogwood unidentified grasses, and weeds DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Project # PS20203650 | The Boeing Company | March 31, 2020 Page 2 of 6 c:\users\kelly.eames\desktop\appendix a photolog.docx Photo 3 East at Apron D bridge – Red osier dogwood, Cottonwood sapling, unidentified grasses, and weeds Photo 4 South at Apron D bridge – Cottonwood saplings, unidentified grass, and weeds DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Project # PS20203650 | The Boeing Company | March 31, 2020 Page 3 of 6 c:\users\kelly.eames\desktop\appendix a photolog.docx Photo 5 South along Perimeter Road – limited lawn grass, concrete floodwall. Alder and poplar trees located on east riverbank, across LCR Photo 6 Landscaped parking lot planter area (arbor vitae, assorted shrubs) along Perimeter Road DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Project # PS20203650 | The Boeing Company | March 31, 2020 Page 4 of 6 c:\users\kelly.eames\desktop\appendix a photolog.docx Photo 7 North along Perimeter Road – limited lawn grass, concrete floodwall. Alder and poplar trees located on east LCR Photo 8 North along Perimeter Road – Landscaped parking lot planter area (rose, Lonicera) DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Project # PS20203650 | The Boeing Company | March 31, 2020 Page 5 of 6 c:\users\kelly.eames\desktop\appendix a photolog.docx Photo 9 West, on east bank LCR – Alder tree (less than 10” DBH) cluster and Scotch broom Photo 10 Northwest, on east bank LCR – Scotch broom, alder/cottonwood saplings, unidentified grasses and weeds DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70 Standard Stream Study Narrative Apron A Stormwater Improvement Project Project # PS20203650 | The Boeing Company | March 31, 2020 Page 6 of 6 c:\users\kelly.eames\desktop\appendix a photolog.docx Photo 11 Southwest, on east bank LCR – Unidentified grasses and weeds Photo 12 Southwest, on east bank LCR – Alder/cottonwood saplings, red osier dogwood, tall Oregon grape, unidentified grasses and weeds DocuSign Envelope ID: E5BC5D88-4502-4914-AF55-E663AFDD0B70