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CRA2023-0151 determination packetCITY OF EDMONDS 121 511 Avenue North, Edmonds WA 98020 Phone: 425.771.0220 • Fax: 425.771.0221 • Web: www.edmondswa PLANNING & DEVELOPMENT DEPARTMENT • PLANNING DIVISION 'nC. 18y%J 9/29/2023 HOLLY L & STEPHEN W KEENAN 23716 91ST PL W EDMONDS, WA 98026-8917 Subject: Critical Areas Determination (CRA2023-0151) Site Address: 23716 91ST PL W Dear Applicant/Owner, Please find the enclosed critical area determination for the Critical Areas Checklist you submitted to the City of Edmonds Planning Division. The critical area determination for your property is "CRITICAL AREA PRESENT." Note that this determination is a site -specific determination and not a project -specific determination. If the critical area determination is "CRITICAL AREA PRESENT," additional critical areas information or critical areas specific studies may be required for development or alteration of your property depending on the location of the activity. "WAIVER" means no further critical area review is required for development or alteration of your property. If you have any questions regarding this critical area determination, please contact the planner on duty at 425.771.0220. Regards, TRISTAN SEWELL Planner Planning & Development Department Enc: Critical Area Determination, Vicinity Map CITY OF EDMONDS 121 51h Avenue North, Edmonds WA 98020 Phone: 425.771.0220 • Fax: 425.771.0221 • Web: www.edmondswa.gov PLANNING & DEVELOPMENT DEPARTMENT • PLANNING DIVISION 'nc. 1891i Critical Area Determination (CRA2023-0151) Based on a review and inspection of the subject site, staff determined that one or more critical areas are located on or near the site. Critical areas are ecologically sensitive or hazardous areas that are protected to maintain their functions and values. Site Location 23716 91ST PL W Tax Account Number 00456500000200 Property Owner HOLLY L & STEPHEN W KEENAN Applicant STEVE KEENAN Critical Area(s) Present ❑ Wetlands (ECDC 23.50): Yes ❑ Frequently Flooded Areas (ECDC 23.70): NA ❑ Geologically Hazardous Areas (ECDC 23.80) ❑ Erosion Hazard Areas: Yes ❑ Landslide Hazard Areas: NA ❑ Seismic Hazard Areas: NA ❑ Fish & Wildlife Habitat Conservation Areas (ECDC 23.90) ❑ Mapped Fish & Wildlife Habitat: NA ❑ Streams: NA Site Description The subject property is located west of 91st PI. W, neighboring the Madrona School. The site is currently developed with a single-family home. The site is relatively level along the western property boundary and begins to slope eastern side of the existing residence down into the school's property. According to the Soil Survey of Snohomish County, soils on the subject site consist of "Alderwood urban land complex, 2-8% slopes". According to the City LiDAR data, portions of the site or adjacent areas contain slopes greater than 15% are therefore considered a potential erosion hazard. Any land disturbing activity within 50 feet of the steep slopes will require a geotechnical report per requirements of ECDC 23.80, with specific reference to ECDC 23.80.060 and ECDC 23.80.070. Additionally, an Erosion and Sediment control plan compliant with chapter 18.30 ECDC may be required for development on a site containing an erosion hazard area which would be reviewed as part of a building permit. A mapped wetland on the Madrona School property is adjacent to the site. The buffer associated with the wetland could impact the site. A qualified professional will need to assess the area to determine the classification and thereby the required buffer of the wetland adjacent to the site. What does this mean? The critical area regulations are only triggered when an alteration is proposed to a critical area or its buffer. However, once an alteration in or near critical area is proposed, critical area studies and City review and approval may be required. What is an `Alteration'? According to Section 23.40.005 of the Edmonds Community Development Code (ECDC): "Alteration" means any human -induced action which changes the existing conditions of a critical area or its buffer. Alterations include, but are not limited to: grading, filling; dredging; draining; channelizing; cutting, pruning, limbing or topping, clearing, relocating or removing vegetation; applying herbicides or pesticides or any hazardous or toxic substance; discharging pollutants; paving, construction, application of gravel; modifying for surface water management purposes; or any other human activity that changes the existing landforms, vegetation, hydrology, wildlife or wildlife habitat value of critical areas. Unpermitted alteration of a critical area or buffer (including tree trimming or topping, dumping yard waste, or application of pesticides or fertilizers) can lead to enforcement action and fines. Before undertaking any work, please contact the City to verify whether critical area studies and City review is necessary. TRISTAN SEWELL Planner September 29, 2023 Cited sections of the Edmonds Community Development Code (ECDC) can be found at http.-Ilwww.codepublishing.com/WA/Edmonds Environmentally Critical Areas General Provisions (ECDC 23.40) Wetlands (ECDC 23.50) Frequently Flooded Areas (ECDC 23.70) Geologically Hazardous Areas (ECDC 23.80) Fish and Wildlife Habitat Conservation Areas (ECDC 23.90) Building permits — Earth Subsidence and Landslide Hazard Areas (ECDC 19.10) City of Edmonds GIS map tool with approximate location of critical areas: http://maps.edmondswo.gov Page 12 = - City of Edmonds CRA2023-0151 Legend Creeks Seismic Hazard Areas �O I Earth Subsidence and Landslide �! Minimum Buffer Adjacent to Hat Alderwood Urban land land complex, Wetlands Wetlands Boundary o slopescomplex, —" Wetland Boundaries Not Completel I Wetland Known Extents Floodplains . ® A Al arw • ' O� ® AE I end � �1� � vE x 0 ReZones i PRD RoW USGS Soils Alderwood Gravelly loam, 15 1 sandy Alderwood Gravelly sandy loam, 2-' 9117 Alderwood Gravelly sandy loam, 8- Q■ Alderwood Urban land complex, 24 u O ■ Alderwood Urban land complex, 8-' i . Alderwood-Everett Gravelly sandy I - . Custer fine sandy loam, 0-2 % slope Everett gravelly sand loam, 0-8 % s 1: 758 Everett aravellv sand loam. 15-25 9 Notes 23716 PL W 0 63.15 126.3 Feet 1,128 94.0 This map is a user generated static output from an Internet mapping site and is for 91 st INV2023-0015 reference only. Data layers that appear on this map may or may not be accurate, WGS_1984_Web_Mercator_Auxiliary_Sphere current, or otherwise reliable. © City of Edmonds THIS MAP IS NOT TO BE USED FOR DESIGN OR CONSTRUCTION