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CRA2022-0150 Critical Area DeterminationCITY OF EDMONDS 121 5ch Avenue North, Edmonds WA 98020 Phone: 425.771.0220 • Fax: 425.771.0221 • Web: www.edmondswa DEVELOPMENT SERVICES DEPARTMENT • PLANNING DIVISION 'I?c. 1 S9V 10/10/2022 DEAN P HELSETH 823 CEDAR ST EDMONDS, WA 98020-3351 Subject: Critical Areas Determination (CRA2022-0150) Site Address: 823 CEDAR ST 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, ROSE HAAS Planning Division Development Services 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 DEVELOPMENT SERVICES DEPARTMENT • PLANNING DIVISION C. 1 091J Critical Area Determination (CRA2022-0150) 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 823 CEDAR ST Tax Account Number 00484500200800 Property Owner DEAN P HELSETH Applicant ELIZABETH SNEERINGER 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: NA Site DescriDtion The soils on the site are identified as Alderwood Urban land complex, 8 -15% slopes according to the Snohomish County soils survey. The subject property is an approximate 6,970 square foot lot, which is adjacent to properties containing steep slopes on the East and West sides of the parcel. According to the City's LiDAR information, directly adjacent to the East property line, slopes in excess of 40% are present, indicating a Landslide Hazard Area. LiDAR data also shows approximate 32% slopes on the West side of the property site, indicating an Erosion Hazard Area. Site visit confirmed the presence of steep slopes and their approximate locations. The site visit indicated a steep slope and abrupt drop in excess of 10 feet on the East property line. The slope was obscured with foliage, but a small rockery retaining wall is present. Another steep slope with an abrupt drop lies on the western edge of the subject property and continues into the neighboring property on the West, where it is held with a rockery/retaining wall. Slopes in excess of 40% are considered Landslide Hazard Areas, and 15%-40% slopes are considered Erosion Hazard Areas. 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. ROSE HAAS, Planner"October 10, 2022 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) Date City of Edmonds GIS map tool with approximate location of critical areas: http://maps.edmondswo.gov Page 12 City of Edmonds CRA2022-0150 Map 0 31.57 63.1 Feet 564 47.0 This map is a user generated static output from an Internet mapping site and is for 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 Legend Creeks Seismic Hazard Areas Earth Subsidence and Landslide r- L! Minimum Buffer Adjacent to Hat Contour Lines 2 - 10, 50 - 100 Landslide Hazard Area 40% El Severe Erosion Hazard 15%-40% Erosion Hazard Areas 15%-40% ArcSDE.GIS.STREET CENTERLINE: — <all other values, 1 2 5,4 91 71, 71 8 Sections Boundary Edmonds Boundary ArcSDE.GIS.PROPERTY_BUILDIN< ArcSDE.GIS.STREET CENTERLINE: — <all other values> ' Interstate Principal Arterial Minor Arterial; Collector Local Street Notes 823 Cedar Street Office Addition. Removal of covered patio