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Home My WebLink AboutEx 10_Critical Area Study.pdf i P. O. B O X 1 9 0 8 I S S A Q U A H, W A S H I N G T O N 9 8 0 2 7 2 5 3 – 9 0 5 – 5 7 3 6 Bretzke Critical Area Study for Wetlands and Streams 5521 N.E. 10th St. Renton, Washington 98059 Tax Parcel Number: 1023059358 & 1023059360 SE Quarter of Section 10, Township 23 N, Range 4 E5 City of Renton PRE22-000219 Prepared for: Yan Lifshaz 425-443-6129 ylifshaz@comcast.net Dated: November 15, 2022 Revised March 8, 2024 Prepared by: Jeffery S. Jones, Wetland Scientist i Table of Contents 1.0 Description of Proposal............................................................................................................ 1 2.0 Address, Parcel Identification Nos. & Abbreviated Legal Descriptions ................................. 1 3.0 Site Condition and Surrounding Land Use Description .......................................................... 1 4.0 Wetland Scientist Qualifications ............................................................................................... 1 5.0 Methodology ............................................................................................................................ 2 6.0 Wetland Determination, Classification, Rating, and Regulatory Requirement ........................ 2 7.0 Stream Determinations, Classifications, and Regulatory Requirements .................................. 3 8.0 Functions and Values of the Wetland ...................................................................................... 3 9.0 Wildlife Observations .............................................................................................................. 3 10.0 Impact Assessment................................................................................................................. 3 11.0 No Net Loss ........................................................................................................................... 3 14.0 Mitigation & Mitigation Sequencing ..................................................................................... 4 15.0 Analysis of Criteria Requested for Stream Study .................................................................. 4 16.0 Authority and Statement of Accuracy .................................................................................... 4 17.0 Limitations ............................................................................................................................. 5 18.0 Summary ................................................................................................................................ 5 19.0 References .............................................................................................................................. 6 Attachments King County Tax Parcel Map Vicinity Map Water Class and Wetland City Inventory Map NRCS Web Soils Survey Map DNR FPARS Map WDFW Priority Habitats and Species Online Report National Wetland Inventory Map Wetlands of High Conservation Value Map Wetland Routine Data Sheets Wetland Rating Form Wetland - Rating Figures 1-6 Photos Resume Jeffery S. Jones, Wetland Scientist Bretzke Single-family Residence Critical Area Variance 1 1.0 Description of Proposal According to Pre-Application File No. 22-000219, dated July 14, 2022, “The proposal is to build a detached dwelling. The residence would have an 1,800 sf footprint with a 630 sf deck. The parcel has public street frontage on N.E. 10th St. along the northern lot line; access is proposed from N.E. 10th St.” The proposal is for a reasonable use exception on tax parcel no. 102305-9360. However, this critical area study encompasses two tax parcels, 102305-9358 and 102305-9360. Tax parcel 102305-9358 is 1.91 acres. It has an existing 1,880 sf single-family residence, that was constructed in 1977, see photo. The first floor is 1,280 sf and the daylight basement is 600 sf. There is a 380 sf deck. There is also a detached barn structure on the parcel, see photo. Tax parcel 102305-9360 is an undeveloped 0.26 acre parcel. 2.0 Address, Parcel Identification Nos. & Abbreviated Legal Descriptions The King County tax parcel numbers are 102305-9358 and 102305-9360. Parcel 9358 has a street address of 5521 N.E. 10th St., Renton, WA 98059. Parcel 9360 does not have an assigned street address. The parcel locations are shown on the attached King County Tax Parcel Map. The subject parcels are located in Northeast Quarter of Section 10, Township 23 North, Range 5 East, of the Willamette Meridian. The abbreviated legal description is as follows: Tax Parcel No. 102305-9358 Legal Description LOT D OF RENTON LLA LUA-06-088- LLA REC #2007022900002 SD LLA LOCATED IN SE 1/4 OF NE 1/4 OF 10-23-05 Tax Parcel No. 102305-9360 Legal Description LOT A OF RENTON LLA LUA-06-088- LLA REC #2007022900002 SD LLA LOCATED IN SE 1/4 OF NE 1/4 OF 10-23-05 3.0 Site Condition and Surrounding Land Use Description Tax parcel 102305-9358 has an existing house, detached barn structure, and yard. Tax parcel 102305-9360 is undeveloped forest except for the northeast corner that is a overgrown in Himalayan blackberry. The surrounding land use is residential and undeveloped critical areas associated with Honey Creek. 4.0 Wetland Scientist Qualifications The wetland scientist, Jeffery S. Jones, has a B.S. degree in Biology and 35 years full-time work as a wetland scientist in Western Washington. His resume is attached to this report. 5.0 Methodology The wetland assessment and delineation were performed using the 1997 Washington State Wetlands Identification and Delineation Manual (DOE, 1997) and the U.S. Army Corps of Engineers “Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coastal Region (COE. 2010). The Routine Small Area Methodology is “used when the project area is small, plant communities are homogeneous, plant community boundaries are abrupt, and the project is not controversial.” The wetland determination was based on the presence of the three criteria for jurisdictional wetlands, hydric soils, wetland hydrology, and hydrophytic vegetation. Wetlands were rated with the updated Washington State Department of Ecology 2014 wetland rating methodology (Hruby, 2014). The assessment included a review of the National Wetland Inventory, the Department of Natural Resources Forest (DNR) FPARS stream typing maps, the City of Renton Critical Areas Map, the WDFW Priority Habitats and Species (PHS) online report, and the USDA National Resource Conservation Service’s online soil survey. The field determination and wetland delineation were performed on November 14, 2022. The weather was overcast and raining both days. The wetland scientist was Jeffery S. Jones. The wetland boundary was originally flagged and delineated in May of 2022 by The Watershed Company. The Watershed Company wetland delineation was checked and found to be accurate. Their wetland boundary flags are still in place. The wetland boundary, topo, property corners, and existing features were surveyed by a licensed professional land surveyor. The wetland flags are numbered A-1 thru A-28. There are two sample locations identified as SL-1 and SL-2. 6.0 Wetland Determination, Classification, Rating, and Regulatory Requirement There is a large wetland, identified as Wetland A, on the south side of tax parcel 9358 and diagonaling through the west half of tax parcel 9360. The wetland is identified on the attached Water Class and Wetland City Inventory Map, the WDFW PHS online report, and the National Wetland Inventory, see the attached maps. The wetland extends from N.E. 10th St. south to N.E. 4th Court. The wetland is mapped as Alderwood gravelly sandy loam soil series, see the attached Soils Map. However, Alderwood typically has inclusions of hydric soils in depressions and drainage patterns. Sample location-1 (SL-1) represents the upland slope above Wetland A, see the attached data sheet. At SL-1, soils profile is dry and does not meet the hydrology criteria. Soils have a 10YR 4/3 brown matrix at 10 inches and non-hydric. The slope is dominated by Himalayan blackberry (Rubus armeniacus), see photo pages of view from street. The dominant plants species are greater than 50% FAC or wetter plant species and meet the criteria for a hydrophytic plant community. Therefore, SL-1 is not wetland. SL-2 represents Wetland A, see the attached data sheet. The soil profile is a 10YR 2/1 black silt loam. All one chroma soils are hydric. The soils profile was saturated to the soil surface. Saturated soils meet the criteria for wetland hydrology. The plant community is strongly positive for wetlands. Dominant plants are 100% FAC or wetter species. Wetland A rates as a Category II, see the attached rating form and rating figures. The HGM classes are Riverine and Depressional, when these two HGM’s are present the Depressional rating sections are used for the rating. The entire wetland is a Palustrine forested wetland (PFO) (Federal 2 3 Geographic Data Committee. 2013). The total score is twenty-one points, and the habitat score is 6 points. The wetland buffer requirement is 150 feet, RMC 4-3-50G. 7.0 Stream Determinations, Classifications, and Regulatory Requirements Honey Creek is mapped in the same drainage pattern as the wetland, see the attached DNR FPARS map. However, there is no channel of flow within the wetland west of the subject parcel. The wetland is seasonally flooded up to the delineated wetland boundary. There is a defined stream channel north of N.E. 10th St. Immediately south of N.E. 10th St., Honey Creek is incorrectly inventoried as a Type Ns stream according to the Water Class and Wetland City Inventory Map, see attached. The DNR FPARS water typing map identifies the stream as a Type F, however there is no stream channel. There may be a stream channel farther to the south in the drainage. The stream buffer requirement for a Type F stream is 150 feet with a 15-foot BSBL, RMC 4-3-50G. The stream buffer could be interpreted as the extent of seasonal flooding. It does not extend beyond the wetland buffer because the wetland boundary is also 150 feet. There is also a tributary to Honey Creek that flows east to west south of wetland boundary flags A-29 to A-19. The source of this tributary appears to be a stormwater pond. The tributary is a Type Ns stream with a 50-foot buffer. 8.0 Functions and Values of the Wetland Wetland A is a Palustrine Forested (PFO) wetland (Cowardin, 1979). There are at least two small ponds within the wetland. Wetland A provides significant flood retention and mediation ability. Wetland habitat functions are moderate because the stream is non-fish bearing and there is significant development around the perimeter of the wetland, breaking access to other habitats. The wetland contains a large number of snags and lots of woody debris that provide wildlife habitat for shelter, feeding, nesting, and roosting. Habitat interspersion is low because there is only one Cowardin class. There is at least one quarter acre of seasonally inundated thin-stemmed vegetation or wood branches for amphibian egg-laying structures. Wetland A and the surrounding uplands are not habitat for any priority species, and there are no priority habitats other than those identified in the wetland. 9.0 Wildlife Observations Only one incidental wildlife species was observed, the American robin (Turdus migratorius). The PHS online report does not identify any priority species, see attached PHS report. 10.0 Impact Assessment No direct impacts to wetlands, streams, or priority habitats will occur as a result of the proposed development. Impact to the wetland buffer is unavoidable and will necessitate a variance to the code for tax parcel 102305-9360. It may not be possible to provide the minimum buffer allowed in the code, in which case a variance to the code would be required. An impact analysis report will be prepared along with the mitigation plan and other variance submittal documents. 11.0 No Net Loss The proposed project will not result in any loss of wetland area or functions. “No net loss” is a federal, state, and local jurisdiction goal that the further loss of wetlands and wetland functions will not occur. Governor Booth Gardner’s Executive Order 89-10 states, “Section 1. It is the interim goal of my administration to achieve no overall net loss in acreage and function of 4 Washington’s remaining wetland base. It is further the long-term goal to increase the quantity and quality of Washington’s wetlands resource base.” 14.0 Mitigation & Mitigation Sequencing A variance to the buffer requirement will require use of mitigation sequencing and mitigation for buffer impacts. Mitigation will comply with the applicable order sequence requirements for mitigation sequencing. Incompliance with mitigation sequencing, the project will avoid all direct critical area impacts and provide mitigation for unavoidable buffer impacts. Onsite rehabilitation of buffers may provide mitigation for buffer impacts. The remaining critical areas and their buffers will be protected in permanent tracts that will be maintained and monitored according to the approved Restoration Plan. 15.0 Analysis of Criteria Requested for Stream Study Will the project provide an overall improvement in water quality? The project will direct stormwater runoff from impervious surface into the city stormwater system and a dispersion trench. Reestablishment of a native plant community in the remaining buffer will protect and provide a minor overall improvement in water quality. Will the project provide an overall enhancement to fish, wildlife, or their habitat? Reestablishment of a native plant community in the critical area buffer will provide an overall improvement to wildlife and their habitat. Himalayan blackberry will be eliminated from the buffer enhancement area and replaced with native plant species that benefit wildlife. Will the project provide a net improvement in drainage and/or stormwater detention capabilities? The building envelope area is currently dense Himalayan blackberry, indicating that the area was previously cleared, graded, and compacted. Runoff from the building envelope will be directed into the city storm water system and to a dispersion trench. The dispersion trench will provide a net improvement in stormwater drainage release and detention. Will the project be materially detrimental to any other property of the city as a whole? The project will not be materially detrimental to any property of the city. The proposed development is one single-family residence which is consistent with other single-family residences along 10th Ave. N.E. Frontage improvements will benefit the community. Will exposed soils be stabilized with native vegetation? The remaining critical area buffer will be stabilized with native vegetation. Exposed soils in the development area will be protected according to an approved temporary erosion and sediment control plan. A 15-ft building setback area around a portion of the structure will be landscaped at the completion of building construction. 16.0 Authority and Statement of Accuracy This wetland determination is in accordance with Section 404 of the Clean Water Act. The critical area determination, delineation and ratings are accurate to the best of the Professional Wetland Scientists ability and knowledge. No assumptions were made for the work performed. 17.0 Limitations Stream and wetland determinations and delineations are not final until approved by regulatory agencies and/or local jurisdictions. J. S. Jones and Associates, Inc. does not guarantee acceptance or approval by regulatory agencies, or that any intended use can be achieved. 18.0 Summary Wetland A occupies a portion of the subject tax parcels. Wetland A is a Category II wetland with a 150 foot buffer requirement. Honey Creek and a tributary of Honey Creek flow through Wetland A. However, there is no defined stream channel for Honey Creek in the wetland. A liberal interpretation of determining the ordinary high water mark, would place the ordinary high water mark along and near the wetland boundary where seasonal flooding extends. The stream is identified as a Type F stream on the DNR water typing map. The buffer requirement is 115 feet plus a 15-foot bsbl. The tributary to Honey Creek, south of the site is a Type Ns stream with a 50-ft buffer requirement. The 50-ft stream buffer does not extend onsite. No direct impacts to wetlands or streams are proposed. Buffer impacts are unavoidable. Buffer impacts will be mitigated onsite in accordance with city code, see the attached Bretzke Single- family Residence Critical Area Variance. No priority habitats or species will be impacted. Critical areas and their buffers will be protected by placing them in either a native growth protection easement or critical area tract. 5 6 19.0 References COE. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1. U.S. Army Corps of Engineers Waterways Experiment Station, Environmental Laboratory, Vicksberg, MS. COE, 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (Version 2.0), Environmental Laboratory U.S. Army Corps of Engineers May 2010. DOE 1997. Washington State Wetlands Identification and Delineation Manual. Publication # 96- 94. Hruby, T., 2014. Washington State Wetland Rating System for Western Washington: 2014 Update. (Publication #14-06-029). Olympia, WA: Washington Department of Ecology. DNR. FPARS Water Typing Map. https://fpamt.dnr.wa.gov/default.aspx Federal Geographic Data Committee. 2013. Classification of wetlands and deepwater habitats of the United States. FGDC-STD-004-2013. Second Edition. Wetlands Subcommittee, Federal Geographic Data Committee and U.S. Fish and Wildlife Service, Washington, DC. https://efaidnbmnnnibpcajpcglclefindmkaj/https://www.fws.gov/sites/default/files/documents/Clas sification-of-Wetlands-and-Deepwater-Habitats-of-the-United-States-2013.pdf NRCS, 2018. Web Soil Survey https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx USFWS. National Wetland Inventory https://www.fws.gov/wetlands/ WDFW. PHS on the Web. https://geodataservices.wdfw.wa.gov/hp/phs/ WNHP Data Explorer, Rare Plants and Ecosystems https://experience.arcgis.com/experience/174566100f2a47bebe56db3f0f78b5d9/page/Rare-Plant- and-Ecosystem-Locations/ 7 Attachments King County, EagleView Date: 11/11/2022 Notes: ±The information included on this map has been compiled by King County staff from a variety of sources and is subject to change without notice. King County makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. This document is not intended for use as a survey product. King County shall not be liable for any general, special, indirect, incidental, or consequential damages including, but not limited to, lost revenues or lost profits resulting from the use or misuse of the information contained on this map. Any sale of this map or information on this map is prohibited except by written permission of King County. King County iMap Tax Parcels King Date: 11/16/2022 Notes: ±The information included on this map has been compiled by King County staff from a variety of sources and is subject to change without notice. King County makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. This document is not intended for use as a survey product. King County shall not be liable for any general, special, indirect, incidental, or consequential damages including, but not limited to, lost revenues or lost profits resulting from the use or misuse of the information contained on this map. Any sale of this map or information on this map is prohibited except by written permission of King County. Vicinity Map Soil Map—King County Area, Washington Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 11/11/2022 Page 1 of 3526082052608605260900526094052609805261020526082052608605260900526094052609805261020564190564230564270564310564350564390564430564470564510564550 564190 564230 564270 564310 564350 564390 564430 564470 564510 564550 47° 29' 58'' N 122° 8' 52'' W47° 29' 58'' N122° 8' 34'' W47° 29' 50'' N 122° 8' 52'' W47° 29' 50'' N 122° 8' 34'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 10N WGS84 0 50 100 200 300Feet 0 25 50 100 150Meters Map Scale: 1:1,700 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: King County Area, Washington Survey Area Data: Version 18, Sep 8, 2022 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 25, 2020—Jul 27, 2020 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Soil Map—King County Area, Washington Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 11/11/2022 Page 2 of 3 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI AgC Alderwood gravelly sandy loam, 8 to 15 percent slopes 8.5 80.1% AgD Alderwood gravelly sandy loam, 15 to 30 percent slopes 2.1 19.9% Totals for Area of Interest 10.7 100.0% Soil Map—King County Area, Washington Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 11/11/2022 Page 3 of 3 Esri, HERE, Garmin, (c) OpenStreetMap contributors, and the GIS user community, Department of Natural Resources (DNR), Forest Practices Division, Department of Natural Resources (DNR), Engineering Division Map Symbols Forest Practices Water Type Map ¯ End of Fish or Last Fish!? "Manmade Barrier#*Natural Fish Barrier Start and End Point of Surveyed Reach[[New Stream F Proposed Water Type Stream Removalxxx Break between water types F N Extreme care was used during the compilation of this map to ensure its accuracy. However, due to changes in data and the need to rely on outside information, the Department of Natural Resources cannot accept responsibility for errors or omissions, and therefore, there are no warranties that accompany this material.Date: 11/11/2022 Time: 6:01 PM Additional Information Legal Description Approximate Scale :1:12,000 S03 T23.0N R05.0E, S02 T23.0N R05.0E, S11 T23.0N R05.0E, S10 T23.0N R05.0E, S14 T23.0N R05.0E, S15 T23.0N R05.0E 0 1,000 2,000500 Feet 11/11/22, 9:17 PM PHS Report about:blank 1/2 PHS Species/Habitats Overview: Occurence Name Federal Status State Status Sensitive Location Freshwater Forested/Shrub Wetland N/A N/A No Priority Habitats and Species on the Web Report Date: 11/11/2022 PHS Species/Habitats Details: 11/11/22, 9:17 PM PHS Report about:blank 2/2 Freshwater Forested/Shrub Wetland Priority Area Aquatic Habitat Site Name N/A Accuracy NA Notes Wetland System: Freshwater Forested/Shrub Wetland - NWI Code: PFOC Source Dataset NWIWetlands Source Name Not Given Source Entity US Fish and Wildlife Service Federal Status N/A State Status N/A PHS Listing Status PHS Listed Occurrence Sensitive N SGCN N Display Resolution AS MAPPED ManagementRecommendations http://www.ecy.wa.gov/programs/sea/wetlands/bas/index.html Geometry Type Polygons Freshwater Forested/Shrub Wetland Priority Area Aquatic Habitat Site Name N/A Accuracy NA Notes Wetland System: Freshwater Forested/Shrub Wetland - NWI Code: PSSF Source Dataset NWIWetlands Source Name Not Given Source Entity US Fish and Wildlife Service Federal Status N/A State Status N/A PHS Listing Status PHS Listed Occurrence Sensitive N SGCN N Display Resolution AS MAPPED ManagementRecommendations http://www.ecy.wa.gov/programs/sea/wetlands/bas/index.html Geometry Type Polygons DISCLAIMER. This report includes information that the Washington Department of Fish and Wildlife (WDFW) maintains in a central computer database. It is not an attempt to provide you with an official agency response as to the impacts of your project on fish and wildlife. This information only documents the location of fish and wildlife resources to the best of our knowledge. It is not a complete inventory and it is important to note that fish and wildlife resources may occur in areas not currently known to WDFW biologists, or in areas for which comprehensive surveys have not been conducted. Site specific surveys are frequently necesssary to rule out the presence of priority resources. Locations of fish and wildlife resources are subject to variation caused by disturbance, changes in season and weather, and other factors. WDFW does not recommend using reports more than six months old. Wetlands U.S. Fish and Wildlife Service, National Standards and Support Team, wetlands_team@fws.gov Wetlands Estuarine and Marine Deepwater Estuarine and Marine Wetland Freshwater Emergent Wetland Freshwater Forested/Shrub Wetland Freshwater Pond Lake Other Riverine November 12, 2022 0 0.06 0.120.03 mi 0 0.1 0.20.05 km 1:3,762 This page was produced by the NWI mapper National Wetlands Inventory (NWI) This map is for general reference only. The US Fish and Wildlife Service is not responsible for the accuracy or currentness of the base data shown on this map. All wetlands related data should be used in accordance with the layer metadata found on the Wetlands Mapper web site. WA Wetlands of High Conservation Value City of Renton, County of King, Bureau of Land Management, Esri, HERE, Garmin, GeoTechnologies, Inc., NGA, USGS Counties 11/16/2022, 4:41:36 PM 0 0.4 0.80.2 mi 0 0.65 1.30.33 km 1:36,112 Washington Natural Heritage Program City of Renton, County of King, Bureau of Land Management, Esri, HERE, Garmin, GeoTechnologies, Inc., NGA, USGS | Washington State Department of Natural Resources | Washington Natural Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 1 WETLAND A (DEPRESSIONAL) Figure 1. Cowardin plant classes – D1.3, H1.1, H1.4 Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 2 Figure 2. Hydroperiods, outlet(s), and 150-ft area – D1.1, D1.4, H1.2, D2.2, D5.2 Outlet Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 3 Figure 3. Map of the contributing basin – D4.3, D5.3 Contributing basin Wetland A HUC 171100120400 Basin Honey Creek Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 4 Figure 4. Undisturbed habitat and moderate-low intensity land uses within 1 km from wetland edge including polygon for accessible habitat – H2.1, H2.2, H2.3 Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 5 Figure 5. Screen-capture of 303(d) listed waters in basin – D3.1, D3.2 Wetland A Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 6 Figure 6. Screen-capture of TMDL map for sub-basin in which unit is found – D3.3 Wetland A is located in the Lake Washington- Sammamish River Basin (HUC = 171100120400) Existing House, View from NE 10th St Existing House, View North from Edge of Yard Existing Shed Sample Location 1 (SL-1) SL-1 SL-2 SL-2 Stream Channel Near SL-2 JEFFERY S. JONES WETLAND SCIENTIST & WILDLIFE BIOLOGIST I have over thirty years of professional environmental consulting and project management experience. For the last thirty one years, I have worked full-time as an environmental consultant, wetland scientist and wildlife biologist on projects in Washington, Oregon, Montana, and Alaska. Work Experience • Wetland Scientist and Wildlife Biologist/Owner, J. S. Jones and Associates, Inc. Oct. 1987 to Present • Owner of Thor’s Native Plant Nursery. Kent, WA, 2007-2015 • Field Avian Biologist, Wildlife International. Yakima, Washington. 1988 • Conservation Technician, USDA Soil Conservation Service. Medford, Oregon. 1981- 1987 • Cadastral Land Surveyor, Bureau of Land Management. Medford, Oregon. 1978-1979 • Land Survey Aide, Compass Corporation. Sellwood, Oregon. 1969-1973 Professional Affiliations Lifetime Member, National Society of Wetland Scientist (former PWS No. 1025) Education B.S. Biology, Lewis & Clark College, Portland, Oregon, 1978 Selected Project Experience Environmental Consultant on over 2,000 projects for industry, developers and property owners. Projects include: • Great Blue Heron, Pattern of Rookery Movement, Molalla State Park, Molalla, Oregon 1978 • Boeing Everett Facilities Expansion and other Boeing construction projects, Wetland Scientist and Wildlife Biologist, Five-years monitoring and seven-years on construction management team • Muckleshoot Indian Tribe Natural Resource Center, Critical Area Study • Native Village of Eyak, Cordova, Alaska, Port Expansion NEPA Permit team member • Department of Homeland Security Facility Colville, Critical Area Assessment • Seattle Audubon Society, Bird Impact Study for Off-leash Dog Areas at all City of Seattle Parks, 1995 • King County Norm Maleng Prosecutors Office, Wetland Consultant & Expert Witness, Stewart Property Acquisition • Real Com Lake McMurray Habitat Management Plan, Snohomish County, 2007 • Lipoma Firs, Wildlife Habitat Assessment and Pileated Woodpecker Habitat Management Plan, Pierce County, 2007 • Marriott Hotel Everett, Critical Area Study, 2019. • iCap Commercial Development, Critical Area Study, Habitat Assessment and Habitat Management Plan, Bremerton, WA 2014 • Robertson Properties Group, S. 277th Street Widening Improvement, EIS Author Environmental Section, Auburn, WA, 2014 • Verizon Oly Lake Lawrence, Wildlife Habitat Assessment and Public Hearing Expert Witness, 2015-2016 • King County Parks Department, Preston Park, Wetland Assessment, 2017 • St. Andrews, Sno. Co. 117 Acre Critical Area Determination Residential Development, Jan. 2020 Community Service Former Issaquah Little League Coach & District All-Stars Coach, 2004-2010 Former City of Issaquah Planning Dept., Rivers and Stream Board Member, 2007-2013 Former University of Washington, Wetland Science Program, Student Adviser, 2016-2019 Contact Information Jeffery S. Jones J. S. Jones and Associates, Inc. PO Box 1908 Issaquah, WA 98027 253-905-5736 jeff.jsjones@comcast.net NORTHEnvironmental ConsultantsPROJECT: CLIENT: 1"=40' SCALE DRAWN BY: J. Jones CHECKED BY: DESIGNED BY: 3/22/2023 1 of 6 SHEET APPROVED BY: DATE: CONSULTANT: Wetlands, Streams, and Wildlife PO Box 1908 Issaquah, Washington 98027 253 905-5736 SCALE: 1" = 40'J. S. Jones and Associates, Inc. Yan Lifshaz PO Box 53046, Bellevue, WA 98015 425-443-6129/ylifshaz@comcast.net NO. DATE BY REVISIONAPPLICANTYan LifshazPO Box 53046Bellevue, WA 98015425-443-6129ylifshaz@comcast.netCIVIL ENGINEER OR SURVEYOR:Matthew J. Haringa, P.E.PrincipalInterlaken Engineering and Design, PLLCSeattle, WA206-470-9572www.interlakenengineering.comENVIRONMENTAL CONSULTANT:Jeffery JonesJ. S. JONES AND ASSOCIATES, INC.PO Box 1908Issaquah, WA 98027253-905-5736jeff.jsjones@comcast.netVICINITY MAPNOT TO SCALELifshaz Wetland Buffer Variance 551X NE 10th St., Renton, WA King County Tax Parcel No. 102305-9360 Bretzke Single-family Residence Critical Area Variance551X NE 10th St., Renton, WAKing County Tax Parcel No. 102305-9360NORTH1 6/12/23 JSJ PER CITY COMMENTS 2 10/31/23 JSJ ADD cONTRS, CROSS-SEC, 3 3/4/24 JSJ REV. MITIGATION AREAS Environmental ConsultantsPROJECT: CLIENT: NA SCALE DRAWN BY: J. Jones CHECKED BY: DESIGNED BY: 3/22/2023 2 of 6 SHEET APPROVED BY: DATE: CONSULTANT: Wetlands, Streams, and Wildlife PO Box 1908 Issaquah, Washington 98027 253 905-5736 J. S. Jones and Associates, Inc. NO. DATE BY REVISION* APPLICATION RATE: 40 LBS PER ACRE* TOTAL BUFFER AREA TO BE SEEDED: 0.176 ACRES* TOTAL AMOUNT OF SEED NEEDED: 7.0 LBS* BROADCAST SEED APPLICATION BY HAND60%30%10%ELYMUS GLAUCUSHORDEUM BRACHYANTHERUMDESCHAMPSIA CAESPITOSABLUE WILDRYEMEADOW BARLEYTUFTED HAIRGRASSBUFFER GRASS SEEDINGSCIENTIFIC NAMEPERCENTAGEGRASS NAMEDOUGLAS FIRWESTERN RED CEDARBIG-LEAF MAPLERED ALDERTotal TreesPseudotsuga menziesiiThuja plicataAcer macrophyllumAlnus rubra2 gal2 gal2 gal1 galVINE MAPLEBEAKED HAZELNUTRED ELDERBERRYPACIFIC NINEBARKSALMONBERRYRED HUCKLEBERRYSWORD FERNTALL OREGON GRAPESALALTotal Shrubs & GroundcoversAcer macrophyllumCorylus cornutaSambucus racemosaPhysocarpus capitatusRubus spectabilisVaccinium parvifoliumPolystichum munitumMahonia aquifoliumGaultheria shallon1 gal1 gal1 gal1 gal1 gal1 gal1 gal1 gal1 galSCIENTIFIC NAMECOMMON NAMESIZE/1212124076121212123612244250212QTY.PLANTNATIVE SOILBACKFILL WITH NATIVE SOILONLY, COMPACT MODERATELYBY HANDPLACE TOP OF ROOTBALL 1INCH ABOVE THE LEVEL OFNATIVE SOIL. BEFORE MULCH,POTTING SOIL SHOULD BEVISIBLE2 INCH DEPTH MEDIUM BARKMULCH NOT TOUCHING STEMREST BOTTOM OF ROOTBALL ONUNDISTURBED NATIVE SOILCUT CIRCLING ROOTS ANDSPREAD OR "BUTTERFLY"ROOTBALLSPREAD A 3 FOOT MINIMUMDIAMETER MULCH RING(DONUT) AROUND THEPLANTING HOLEWIDTH OF PLANTINGHOLE SHALL 3'' WIDER AND 2"DEEPER THAN ROOTBALLSTAKE TREE AT 1/3 HEIGHT OFTREE, USE "TREE TIES" ORENGINEER APPROVEDEQUIVALENT, REMOVE STAKEAND TIE AFTER 1 YEARSTAKE ONLY IF NECESSARY(TYPICALLY IF TREE IS GREATERTHAN 4 FEET TALL)BACKFILL WITH NATIVE SOILONLY, COMPACT MODERATELYBY HANDPLACE TOP OF ROOTBALL 1 INCHABOVE THE LEVEL OF NATIVE SOIL.BEFORE MULCH, POTTING SOILSHOULD BE VISIBLE2 INCH DEPTH MEDIUM BARKMULCH NOT TOUCHING STEMTREE TIE SHALL NOT CONSTRICTTREE DEVELOPMENTNATIVE SOILCUT CIRCLING ROOTS ANDSPREAD OR "BUTTERFLY"ROOTBALLBACKFILL WITH NATIVE SOILONLY, COMPACT MODERATELYBY HANDPLACE TOP OF ROOTBALL 1 INCHABOVE THE LEVEL OF NATIVE SOIL.BEFORE MULCH, POTTING SOILSHOULD BE VISIBLE2 INCH DEPTH MEDIUM BARKMULCH NOT TOUCHING STEMNATIVE SOILCUT CIRCLING ROOTS ANDSPREAD OR "BUTTERFLY"ROOTBALLSTAKE ONLY IF NECESSARY(TYPICALLY IF TREE IS GREATERTHAN 4 FEET TALL)TREE TIE SHALL NOT CONSTRICTTREE DEVELOPMENTSTAKE TREE AT 1/3 HEIGHT OFTREE, USE "TREE TIES" ORENGINEER APPROVEDEQUIVALENT, REMOVE STAKEAND TIE AFTER 1 YEARREST BOTTOM OF ROOTBALL ONUNDISTURBED NATIVE SOILSPREAD A 3 FOOT MINIMUMDIAMETER MULCH RING(DONUT) AROUND THEPLANTING HOLEWIDTH OF PLANTINGHOLE SHALL 3'' WIDER AND 2"DEEPER THAN ROOTBALLREST BOTTOM OF ROOTBALL ONUNDISTURBED NATIVE SOILSPREAD A 3 FOOT MINIMUMDIAMETER MULCH RING(DONUT) AROUND THEPLANTING HOLEWIDTH OF PLANTINGHOLE SHALL 3'' WIDER AND 2"DEEPER THAN ROOTBALL4' METAL POST4" MIN.3' FENCING METAL FENCE POST4" MIN.METAL POST8' ON CENTERSILT FENCEWIRE BACKED SILT FENCEATTACHED TO POSTS WITHMETAL CLIPSNote:INSTALL SILT FENCE ALONG WETLAND BOUNDARY ADJACENTTO THE MITIGATION AREAPLANTING DETAILSSILT FENCE DETAILCOND.8' ON CENTER12" TO 16"8"30" TO 42"CONCRETE18" TO 24"4"x4"" SPLIT RAIL POST SPLIT RAIL FENCEWETLAND SIGN DETAILTHE WETLAND SIGN SHALL BE POSTED AT THE BOUNDARY BETWEEN THE SENSITIVE AREABUFFER, SETBACK AREA OR SETBACK TRACT AND THE BUILDING SETBACK AREA.ONE SIGN SHALL BE POSTED EVERY 50-FEET OF SENSITIVE AREA BUFFER AND SHALL BESTATIONED IN APPROPRIATE LOCATIONS, I.E.: AT THE CLOSEST POINT TO THE PROPOSEDDEVELOPMENT. SIGNS MAY ALSO BE ATTACHED TO SPLIT RAIL FENCE POSTS.PRE-PRINTEDMETAL SIGNATTACH SIGN TO POST WITHTWO 5/16 GALVANIZED LAGBOLTS WITH WASHERS, ORWOOD SCREWS, OR NAILSWITH RUBBER WASHERS8' - 4X4 CEDAR ORPRESSURE TREATED POSTSET IN CONCRETE SET 3'INTO HOLE5' TO GRADESensitive Area BoundaryHelp protect and care for this area.WetlandFENCE NOTES:INSTALL SPLIT RAIL FENCE ALONG WETLAND BUFFER BOUNDARY AND CLEARINGLIMIT. FENCE MAYBE CONSTRUCTED OF SPLIT RAIL, PRESSURE TREATED RAIL,OF VINYL COATED PLASTIC. THE FENCE CAN NOT BE SOLID AND MUST ALLOWWILDLIFE TO PASS THROUGH.PROTECTION OF THIS NATURALAREA IS IN YOUR CARE.ALTERATION, DISTURBANCEAND DUMPING ARE PROHIBITEDIN CRITICAL AREAS.SPLIT RAIL FENCE DETAILPLANT MATERIALS SCHEDULE (7,672 SF)Yan Lifshaz PO Box 53046, Bellevue, WA 98015 425-443-6129/ylifshaz@comcast.net Lifshaz Wetland Buffer Variance 551X NE 10th St., Renton, WA King County Tax Parcel No. 102305-9360 Bretzke Single-family Residence Critical Area Variance551X NE 10th St., Renton, WAKing County Tax Parcel No. 102305-93601 6/12/23 JSJ PER CITY COMMENTS 2 10/31/23 JSJ ADD cONTRS, CROSS-SEC, 24" MIN.34" - 1 12" WASHED ROCK6" minMIN. RIGID4" PERF PIPE18" minMax 15% slopeMax 20% slopelevel outletDISPERSION TRENCH X-SEC DETAIL3 3/4/24 JSJ REV. MITIGATION AREAS Environmental ConsultantsPROJECT: CLIENT: NA SCALE DRAWN BY: J. Jones CHECKED BY: DESIGNED BY: 3/22/2023 3 of 6 SHEET APPROVED BY: DATE: CONSULTANT: Wetlands, Streams, and Wildlife PO Box 1908 Issaquah, Washington 98027 253 905-5736 J. S. Jones and Associates, Inc. NO. DATE BY REVISION 1.0 Executive SummaryThe applicant proposes a single-family residence in critical areabuffers. The parcel is encumbered with wetlands, and wetlandand stream buffers. The buffer impacts are 5,104 sf for thebuilding envelope which is the proposed house footprint and15-ft bsbl, 2,142 sf for frontage improvements, and 419 sf ofdriveway and walkways outside of the building envelope. Thetotal buffer impact is 7,665 sf and the mitigation area is 7,672sf.1.1 Goals and ObjectivesThe goal of mitigation is to improve the functions and valuesof the critical area buffer. The objectives necessary to meet theabove stated goal area as follows:·Install erosion control silt fence·Completely remove Himalayan blackberry·Install native plant materials·Install split rail fence·Install critical area signs·All buffer enhancement activities to be supervised by anWetland Scientist·Record Notice On Title with City of Renton Records·Maintain and monitor the enhancement area for a periodof five (5) years that may be extended to ten (10) years ifperformance standards are not met·If the enhancement area fails to meet performancestandards provide a contingency recommendations·A building permit will not be issued until mitigation hasbeen implemented·A financial guarantee will be required by the city2.0 Project LocationThe property is City of Renton Tax Parcel No. 102105-9146.The site address is 13730 Auburn-Black Diamond, Auburn,WA 98092.3.0 Responsible PartiesProperty OwnersYan LifshazPO Box 53046Bellevue, WA 98015425-443-6129ylifshaz@comcast.comEnvironmental ConsultantJ. S. Jones and Associates, Inc.Attn: Jeffery S. Jones, Wetland ScientistP.O. Box 1908Issaquah, Washington 98027253-905-57364.0 StandardsAll work and materials shall conform to the City of Rentonstandards and specifications, and to the specifications anddetails shown on these plans.5.0 City of Renton ContactThis restoration plan requires inspection and approvals by Cityof Renton staff. Requests for inspection/approval shall becoordinated with the City of Renton.6.0 Contractor InformationWhen it is available, contact information shall be provided tothe City of Renton that includes names, addresses and phonenumbers of persons/firms that will be responsible for gradingthe mitigation/restoration area, installing plants, andperforming required maintenance and monitoring.7.0 Contractor's QualificationsContractor/Landscape Installer must be experienced inmitigation and restoration work. The Permittee shall providethat there is one person on the site at all times during work andinstallation who is thoroughly familiar with the type ofmaterials being installed and the best methods for theirinstallation, and who shall direct all work being performedunder these specifications. This person shall be experienced ininstalling native plant materials for wetland mitigation orrestoration projects, unless otherwise allowed by the WetlandScientist and/or City of Renton staff.8.0 Site ConditionsThe Permittee and/or Wetland Scientist shall immediatelynotify City of Renton staff of any discrepancies between theseplans and the site conditions. The locations of plants shownmay be modified in the field by the Wetland Scientist and/orCity of Renton staff based on field conditions at the time ofplanting. Changes should be documented and as-built drawingssubmitted to City of Renton upon request for formalconstruction approval.9.0 Plants9.1 Origin: Plant materials shall be Northwest native plants,nursery grown in the Puget Sound region of Washington. Dugplants may only be used upon approval of City of Renton staff.9.2 Handling: Plants shall be handled so as to avoid alldamage, including breaking, bruising, root damage, sunburn,drying, freezing or other injury. Plants must be covered duringtransport. Plants shall not be bound with wire or rope in amanner that could damage branches. Protect plant roots withshade and wet soil in the time period between delivery andinstallation. Do not lift container stock by trunks, stems, ortops. Do not remove from containers until ready to plant.Water all plants as necessary to keep moisture levelsappropriate to the species horticultural requirements. Plantsshall not be allowed to dry out. All plants shall be wateredthoroughly immediately upon installation. Soak allcontainerized plants thoroughly prior to installation. Bare rootplants are subject to the following special requirements, andshall not be used unless planted between November 1 andMarch 1, and only with the permission of the Wetland Scientistand City of Renton staff. Bare root plants must have enoughfibrous root to insure plant survival. Roots must be covered atall times with mud and/or wet straw, moss, or other suitablepacking material until time of installation. Plants whose rootshave dried out from exposure will not be accepted atinstallation inspection.9.3 Storage: Plants stored by the Permittee for longer thanone month prior to planting shall be planted in nursery rows,and treated in a manner suitable to that species horticulturalrequirements. Plants must be re-inspected by the WetlandScientist prior to installation.9.4 Damaged Plants: Damaged, dried out, or otherwisemishandled plants will be rejected at installation inspection.All rejected plants shall be immediately removed from the site.9.5 Plant Names: Plant names shall comply with thosegenerally accepted in the native plant nursery trade. Anyquestions regarding plant species or variety shall be referred tothe Wetland Scientist or City of Renton staff. All plantmaterials shall be true to species and variety.9.6 Plant Substitutions: Plant substitutions are not permittedwithout the permission of the Wetland Scientist and/or City ofRenton staff. Same species substitutions of larger size do notrequire special permission.9.7 Quality and Condition: Plants shall be normal in patternof growth, healthy, well-branched, vigorous, withwell-developed root systems, and free of pests and diseases.Damaged, diseased, pest-infested, scraped, bruised, dried-out,burned, broken, or defective plants will be rejected. Plantswith wounds will be rejected.Yan Lifshaz PO Box 53046, Bellevue, WA 98015 425-443-6129/ylifshaz@comcast.net Lifshaz Wetland Buffer Variance 551X NE 10th St., Renton, WA King County Tax Parcel No. 102305-9360 Bretzke Single-family Residence Critical Area Variance551X NE 10th St., Renton, WAKing County Tax Parcel No. 102305-93601 6/12/23 JSJ PER CITY COMMENTS 2 10/31/23 JSJ ADD cONTRS, CROSS-SEC, 3 3/4/24 JSJ REV. MITIGATION AREAS Environmental ConsultantsPROJECT: CLIENT: NA SCALE DRAWN BY: J. Jones CHECKED BY: DESIGNED BY: 3/22/2023 4 of 6 SHEET APPROVED BY: DATE: CONSULTANT: Wetlands, Streams, and Wildlife PO Box 1908 Issaquah, Washington 98027 253 905-5736 J. S. Jones and Associates, Inc. NO. DATE BY REVISION 9.8 Roots: All plants shall be balled and burlap, or containerized,unless explicitly authorized by the Wetland Scientist. Root-boundplants or B&B plants with damaged, cracked or loose rootballs(major damage) will be rejected. Immediately before installation,plants with minor root damage (some broken and/or twisted) mustbe root-pruned. Matted or circling roots of containerized plantingsmust be pruned or straightened and the sides of the root ball mustbe roughened from top to bottom to a depth of approximately halfand inch in two to four places. Bare root plantings of woodymaterial is allowed only with permission from the WetlandScientist, and/or City of Renton staff.9.9 Sizes: Plant sizes shall be the size indicated in the plantschedule. Larger stock may be acceptable provided that it has notbeen cut back to size specified, and that the root ball isproportionate to the size of the plant. Smaller stock may beacceptable, and under some circumstances preferable, based onsite-specific conditions. Measurements, caliper, branching andballing and burlap shall conform to the American Standard ofNursery Stock by the American Association of Nurserymen (latestedition).9.10 Form: Evergreen trees, if used, shall have single trunks andsymmetrical, well-developed form. Deciduous trees shall be singletrunk unless specified as multi-stem in the plant schedule. Shrubsshall have multiple stems, and be well-branched.9.11 Planting: Planting shall be done in accordance withillustrated details in the mitigation/restoration plan set and acceptedindustry standards.9.12 Timing of Planting: Unless otherwise approved by City ofRenton staff, all planting shall occur between September 1 and May31.9.13 Weeding: Existing and exotic vegetation in the mitigation andbuffer areas will be hand weeded from around all newly installedplants at the time of installation and on routine basis throughmonitoring period. No chemical control of vegetation on anyportion of the site is allowed without the written permission of Cityof Renton staff.9.14 Soil Amendments: Unless otherwise specified and approvedby City of Renton, native soil will be incorporated into the plantingpits.9.15 Mulch: The soil surface surrounding all planting pit areasshall receive no less than 2"-4" of organic compost or medium barkmulch after planting. Compost or mulch shall be kept well away (atleast 2") from the trunks and stems of woody plants. Compost shallbe Cedar Grove Pure Compost or approved equal.9.16 Site Conditions: Contractor shall immediately notify theWetland Scientist of drainage or soil conditions likely to bedetrimental to the growth or survival of plants. Planting operationsshall not be conducted under the following conditions: freezingweather, when the ground is frozen, excessively wet weather,excessively windy weather, or in excessive heat.9.17 Plant Locations: Locations shall be as depicted in theapproved plan set. The Wetland Scientist may change the locationsof plantings shown on plans based on field conditions.9.18 Planting in Pits: Planting pits shall be circular or square withvertical sides, and shall be 3" deeper and 6" larger in diameter thanthe root ball of the plant. Break up the sides of the pit in compactedsoils. Set plants upright in pits, as illustrated in planting detail.Burlap shall be removed from the planting pit. Backfill shall beworked back into holes such that air pockets are removed withoutadversely compacting soils.9.19 Fertilizer: Slow release fertilizer may be used ifpre-approved by City of Renton staff. Fertilizers shall be appliedonly at the base of plantings underneath the required covering ofmulch (that does not make contact with stems of the plants). Nofertilizers will be placed in planting holes.9.20 Water: Plants shall be watered upon completion ofbackfilling. For spring plantings (if approved), a rim of earth shallbe mounded around the base of the tree or shrub no closer than thedrip line, or no less than 30" in diameter, except on steep slopes orin hollows. Plants shall be watered a second time within 24-48hours after installation. The earthen rim/dam should be leveledprior to the second growing season.9.0 Plants9.13 Weeding: Existing and exotic vegetation in the mitigation andbuffer areas will be hand weeded from around all newly installedplants at the time of installation and on routine basis throughmonitoring period. No chemical control of vegetation on anyportion of the site is allowed without the written permission of Cityof Renton staff.9.14 Soil Amendments: Unless otherwise specified and approvedby City of Renton, native soil will be incorporated into the plantingpits. Soil in the buffer enhancement area will be amended to contain20% organic soil in the entire buffer area.9.15 Mulch: The soil surface surrounding all planting pit areasshall receive no less than 2"-4" of organic compost or medium barkmulch after planting. Compost or mulch shall be kept well away (atleast 2") from the trunks and stems of woody plants. Compost shallbe Cedar Grove Pure Compost or approved equal.9.16 Site Conditions: Contractor shall immediately notify theWetland Scientist of drainage or soil conditions likely to bedetrimental to the growth or survival of plants. Planting operationsshall not be conducted under the following conditions: freezingweather, when the ground is frozen, excessively wet weather,excessively windy weather, or in excessive heat.10.0 Grass SeedingSeeding is required as described in approved plans. Use specifiednative mix at rate specified. All seed materials shall be free ofweed seeds or other foreign matter detrimental to plant growth.10.1 Timing: Seeding shall not take place until mulch has beenapplied. Contractor shall insure that areas to receive seed are cleanof debris and that final grades are correct. Seeding shall beperformed after other plant installation is complete. Seeding is thefinal step of the initial installation; site shall be closed to allvehicles and foot traffic shall be minimized after seeding iscomplete. Seeding shall not take place when the ground is frozenor in windy weather. Seeds shall be hand broadcast or bymechanical hand powered spreader, with as even distribution asfeasible. Areas within 6"-12" of stems of installed plants shall notbe seeded.11.0 MaintenanceMaintenance shall be required in accordance with City of Rentonguidelines and approved plans.11.1 Survival: The Permittee shall be responsible for the health of100% of all newly installed plants for one growing season afterinstallation has been accepted by City of Renton staff (seePerformance Standards). A growing season for these purposes isdefined as occurring from spring to spring (March 15 to March 15,following year). For fall installation (often required), the growingseason will begin the following spring. The Permittee shall replaceany plants that are failing, weak, defective in a manner of growth,or dead during this growing season, as directed by the WetlandScientist, and/or City of Renton staff.11.2 Installation Timing for Replacement Plants: Replacementplants shall be installed between September 1 and March 31, unlessotherwise determined by the Wetland Scientist, and/or City ofRenton staff.11.3 Duration and Extent: In order to achieve performancestandards, the Permittee shall have the mitigation/restoration areamaintained for the duration of the monitoring period 5 years.Maintenance will include watering, weeding around base ofinstalled plants, pruning, replacement, re-staking, removal of allclasses of noxious weeds (see Washington State Noxious WeedsList, WAC 16-750-005) as well as Himalayan blackberry, and anyother measures needed to insure plant survival. All maintenanceshall be directed by the Wetland Scientist.11.4 Standards for Replacement Plants: Replacement plantsshall meet the same standards for size and type as those specifiedfor original installation unless otherwise directed by the WetlandScientist, and/or City of Renton staff. Replacement plants shall beinspected as described above for the original installation.11.5 Replanting: Plants that have settled in their planting pits toodeep, too shallow, loose, or crooked shall be replanted as directedby the Wetland Scientist, and/or City of Renton staff.11.6 Herbicides/Pesticides: Chemical controls shall not be usedin the mitigation/restoration area, sensitive areas or their buffers.However, limited use of herbicides may be approved depending onsite specific conditions, only if approved by City of Renton staff.11.7 Irrigation/Watering: Water shall be provided during the dryseason (May 1-October 15) for the first two years after installationto ensure plant survival and establishment. Water should beprovided by a temporary above ground irrigation system. Watershould be applied at a rate of 1" of water two times a week for year1 and 1" of water one time a week during year 2.Yan Lifshaz PO Box 53046, Bellevue, WA 98015 425-443-6129/ylifshaz@comcast.net Lifshaz Wetland Buffer Variance 551X NE 10th St., Renton, WA King County Tax Parcel No. 102305-9360 Bretzke Single-family Residence Critical Area Variance551X NE 10th St., Renton, WAKing County Tax Parcel No. 102305-93601 6/12/23 JSJ PER CITY COMMENTS 2 10/31/23 JSJ ADD cONTRS, CROSS-SEC, 3 3/4/24 JSJ REV. MITIGATION AREAS 11.8 General: The Permittee shall include in general maintenanceactivities the replacement of any vandalized or damaged signs,habitat features, fences or other structural component of themitigation site.12.0 Performance Standards - Plant Cover and SurvivalPlant survival and cover standards are established to measuremitigation success as follows:Performance StandardsYr 1 Yr 2 Yr 3 Yr 4 Yr 5Vegetative Cover* >10% >15% >20% >30% >50%Plant Survival 100% >95% >90% >85% >80%*Includes beneficial native plants in that category that are naturallyrecruiting volunteersLess than 10% invasive vegetation during any monitoring event.13.0 MonitoringMonitoring shall be conducted on annually for 5 years and maybe extended by the city up to 10 years if performance standards arenot met.13.1 Vegetation Monitoring: Sample belt-transect and plots willbe established for vegetation monitoring, and photo-pointsestablished from one end of each transect and one per plot. No lessthan (1) one transect and (3) three plots will be established in eachenhancement area. Permanent plot location(s) must be identifiedon mitigation/restoration site plans in the first monitoring report(they may be drawn on approved mitigation/restoration plans byhand). Monitoring of vegetation plots shall occur annually betweenAugust 1 and September 30 (prior to leaf drop), unless otherwisespecified.13.2 Photopoints: No less than three (3) permanent photo pointper plot and transect will be established within eachmitigation/restoration area. Photographs will be taken from thesepoints to visually record the condition of the mitigation/restorationarea. Photos shall be taken annually between August 1 andSeptember 30 (prior to leaf drop), unless otherwise specified.13.3 Reports: Monitoring reports shall be submitted byDecember 31 of each year during the monitoring period. Asapplicable, monitoring reports must include description/data for:i. Site plan and location mapii. Historic description of project, including date of installation,current year of monitoring, restatement of mitigation/restorationgoals, and performance standardsiii. Plant survival, vigor, and aerial coverage from every plantcommunity (transect data), and explanation of monitoringmethodology in the context of assessing performance standardsiv. Slope condition, site stability, any structures or specialfeaturesv. Buffer conditions, e.g. surrounding land use, use by humansw. Observed wildlifex. Assessment of nuisance/exotic biota and recommendationsfor managementviii. Soils, including texture, Munsell color, rooting and oxidizedrhizoshperesix. Receipts for off-site disposal of any dumping, weeds, orinvasive plantsx. Receipts for any structural repair or replacementxi. 4"x6" color photograph taken from permanent photo-pointsas shown on Monitoring/Restoration plan.xiii. Summary of maintenance and contingency measuresproposed for next season and completed for past season13.4 Deficiencies: Any deficiency discovered during anymonitoring or inspection visit must be corrected within 60 days ofapproval by City of Renton.13.5 Contingency Plan: Should any monitoring report reveal themitigation has failed in whole or in part, and should that failure bebeyond the scope of routine maintenance, a Contingency Plan willbe submitted. The Contingency Plan may range in complexityfrom a list of plants substituted, to cross-sections of proposedengineered structures. Once approved, it may be installed, and willreplace the approved mitigation/restoration plan. If the failure issubstantial, the City of Renton may extend the monitoring periodfor that mitigation.14.0 BondPrior to beginning any work, the Permittee must provide amitigation/restoration bond or assignment of funds per City ofRenton procedures. Upon approval of the mitigation plan, a bondquantity worksheet will completed based on all elements of themitigation/restoration plan.15.0 ProtectionA notice on title for critical areas shall be recorded at City ofRenton Records.16.0 As-built ReportsAn as-built report will be provided to City of Renton within 30days of the completion of installation of this plan.Environmental ConsultantsPROJECT: CLIENT: NA SCALE DRAWN BY: J. Jones CHECKED BY: DESIGNED BY: 3/22/2023 5 of 6 SHEET APPROVED BY: DATE: CONSULTANT: Wetlands, Streams, and Wildlife PO Box 1908 Issaquah, Washington 98027 253 905-5736 J. S. Jones and Associates, Inc. NO. DATE BY REVISION Yan Lifshaz PO Box 53046, Bellevue, WA 98015 425-443-6129/ylifshaz@comcast.net Lifshaz Wetland Buffer Variance 551X NE 10th St., Renton, WA King County Tax Parcel No. 102305-9360 Bretzke Single-family Residence Critical Area Variance551X NE 10th St., Renton, WAKing County Tax Parcel No. 102305-93601 6/12/23 JSJ PER CITY COMMENTS 2 10/31/23 JSJ ADD cONTRS, CROSS-SEC, 3 3/4/24 JSJ REV. MITIGATION AREAS Bretzke S in g le -f am i ly R es id en ce C r it i ca l A re a Va r ia nc e 551X NE 1 0 t h S t . , R e n t on , WAKing County T ax P a rc e l No . 1 02 3 0 5- 9 3 60 Environmental ConsultantsPROJECT: CLIENT: NA SCALE DRAWN BY: J. Jones CHECKED BY: DESIGNED BY: 3/22/2023 6 of 6 SHEET APPROVED BY: DATE: CONSULTANT: Wetlands, Streams, and Wildlife PO Box 1908 Issaquah, Washington 98027 253 905-5736 J. S. Jones and Associates, Inc. NO. DATE BY REVISION Yan Lifshaz PO Box 53046, Bellevue, WA 98015 425-443-6129/ylifshaz@comcast.net Lifshaz Wetland Buffer Variance 551X NE 10th St., Renton, WA King County Tax Parcel No. 102305-9360 1 6/12/23 JSJ PER CITY COMMENTS Cross-SectionsBretzke Single-family Residence Critical Area Variance551X NE 10th St., Renton, WAKing County Tax Parcel No. 102305-93602 10/31/23 JSJ ADD cONTRS, CROSS-SEC, 3 3/4/24 JSJ REV. MITIGATION AREAS