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CRA2023-0097 DeterminationCITY OF EDMONDS 121 5ch Avenue North, Edmonds WA 98020 Phone: 425.771.0220 • Fax: 425.771.0221 • Web: www.edmondswa PLANNING & DEVELOPMENT DEPARTMENT • PLANNING DIVISION '17C. 18y\3 6/13/2023 ALLISON FERRIS 17024 76TH AVE W EDMONDS, WA 98026-5004 Subject: Critical Areas Determination (CRA2023-0097) Site Address: 17024 76TH AVE 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 "STUDY REQUIRED." 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, ROSE HAAS Planning Division Planning & Development Department Enc: Critical Area Determination CITY OF EDMONDS 121 5t" 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 (CRA2023-0097) Based on a review and inspection of the subject site, staff has 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 in order to maintain their functions and values. Site Location 17024 76TH AVE W Tax Account Number 27040700107000 Property Owner ALLISON FERRIS Applicant ALLISON FERRIS Critical Area(s) Present ❑ Wetlands (ECDC 23.50): NA ❑ Frequently Flooded Areas (ECDC 23.70): NA ❑ Geologically Hazardous Areas (ECDC 23.80) ❑ Erosion Hazard Areas: Yes ❑ Landslide Hazard Areas: Yes ❑ Seismic Hazard Areas: NA ❑ Fish & Wildlife Habitat Conservation Areas (ECDC 23.90) ❑ Mapped Fish & Wildlife Habitat: NA ❑ Streams: Yes Site DescriDtion The subject property is an approximate 14,375 square foot lot which contains multiple critical areas, including landslide hazard areas, severe erosion hazards and a stream. According to Snohomish County soils data, a small SE corner of the parcel contains Alderwood Urban land complex, 2-8% slopes, a large portion of the SW corner contains Alderwood Urban land complex, 8-15% slopes, and the northern half of the parcel contains Alderwood-Everett Gravelly sandy loams, 25-70%. LiDAR data indicates that the northeast portion of the lot contains slopes greater than 15% slopes. Slopes greater than 15% with the mapped soil composition are considered Severe Erosion Hazard Areas. LiDAR data also indicates there are slopes greater than 40% on the western half of the parcel. Slopes greater than 40% are considered Landslide Hazard Areas. According to the City's GIS information, Outfall Creek runs directly adjacent to the west property line and crosses the southwest corner of the parcel. During inspection of the subject site, it was found that the eastern portion of the parcel is relatively flat and the western half of the parcel slopes westward at a severe incline. The site visit also indicated a waterway along the western border. The grade slopes westward toward the waterway and then slopes upward at the opposite bank of the potential stream. The western portion of the parcel is undeveloped and heavily wooded. 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. Streams are considered critical areas pursuant to ECDC Chapter 23.90 and may require development buffer zones of 40ft - 150ft (ECDC 23.90.040(D)). Waterways that are confirmed to contain fish habitat by the Washington Department of Natural Resources are considered fish and wildlife habitat conservation areas within the City of Edmonds (ECDC 23.90.010(A)(1)(b)). A qualified professional will need to assess the area to determine the classifications of the potential stream and its associated fish and aquatic habitats. 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. Page 12 Before undertaking any work, please contact the City to verify whether critical area studies and City review is necessary. ROSE HAAS, Planner �`�✓d� Name, Title Signature Cited sections of the Edmonds Community Development Code (ECDC) can be found at http://www.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) 6/13/2023 Date City of Edmonds GIS map tool with approximate location of critical areas: http://mops.edmondswo.gov Page 13 14F City of Edmonds CRA2023-0097 Map . Legend Creeks �■ -- ' •l ❑ Seismic Hazard Areas h1 7005 O Earth Subsidence and Landslide L! Minimum Buffer Adjacent toHa2 t� Wetlands Wetlands Boundary $ — - Wetland Boundaries Not Completel 1 0 07 1 p Wetland Known Extents Floodplains i � C ® A AE VE O ` • X r Contour Lines 10 50, 100 � Landslide Hazard Area 40% . ❑ Severe Erosion Hazard 15%-40% ❑ Erosion Hazard Areas 15%-40% �•t` - ArcSDE.GIS.STREET_CENTERLINE: <all other values, C 2 J' 514 9;71;7;8 ;. O Notes IN 17024 76th Ave 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 Fence 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