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CRA2025-0021 DeterminationCITY OF EDMONDS 121 51h Avenue North, Edmonds WA 98020 Phone: 425.771.0220 • Fax: 425.771.0221 • Web: www.edmondswa PLANNING & DEVELOPMENT DEPARTMENT • PLANNING DIVISION I/Ic. 10-, 2/27/2025 JOYCE K & NOWAK MARTI CHUI 16118 72ND AVE W EDMONDS, WA 98026-4517 Subject: Critical Areas Determination (CRA2025-0021) Site Address: 16118 72ND 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 "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 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 C. 1 091J Critical Area Determination (CRA2025-0021) 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 16118 72ND AVE W Tax Account Number 00513100005205 Property Owner JOYCE K & NOWAK MARTI CHUI Applicant MARTIN NOWAK 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: Yes ❑ Seismic Hazard Areas: NA ❑ Fish & Wildlife Habitat Conservation Areas (ECDC 23.90) ❑ Mapped Fish & Wildlife Habitat: NA ❑ Streams: NA Site DescriDtion The subject property is an approximate 44,887 square foot lot which contains multiple critical areas, including landslide hazard areas, severe erosion hazards and a potential wetland. According to Snohomish County soils data, the soils on the site are classified as Alderwood-Everett Gravelly sandy loams, 25-70 on a majority of the parcel and Alderwood Gravelly sandy loam, 8-15% slopes on the southwest portion of the property and a small northeastern corner of the parcel adjacent to North Meadowdale Road. The site is also identified as being within the North Edmonds Earth Subsidence and Landslide Hazard Area (ESLHA) and its associated buffer as defined in Chapter 19.10 and Chapter 23.80 of the Edmonds Community Development Code (ECDC). LiDAR data indicates that the west portion of the lot within the ESLHA contains approximate 85% slopes. Slopes just east of the 72nd Ave W are 57% and on the majority of the east portion of the property are approximately 25%. Slopes greater than 40% are considered Landslide Hazard Areas. Slopes greater than 15% with the mapped soil composition are considered Severe Erosion Hazard Areas. According to the City's LiDAR information, the parcel also lies within a potential wetland. During inspection of the subject site, a precipitous slope was confirmed on the west portion of the property. The southern portion of the property was relatively flat on the driveway and throughout the developed footprint. Significant sloped areas were also observed on the north and east sides of the property. The east portion of the property is identified as a native growth protection area and appears heavily treed and undeveloped. No potential wetlands were observed on site but may have been present in the native growth protection area to the east. 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. Wetlands and their associated buffers could impact the subject site. A qualified professional may need to assess the area to determine the classifications of potential wetlands on/and 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. Page 12 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. ROSE HAAS Planner 2 27 2025 Name, Title 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 13 I III y it W" City of Edmonds CRA2025-0021 Map 0 126.30 252.6 Feet 188.1 This ma is a user generated static output from an Internet mapping site and is for 2,257 P B P Pp g 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 52 Legend Creeks ® Seismic Hazard Areas Earth Subsidence and Landslide I r- L! Minimum Buffer Adjacent to Hat Wetlands Wetlands Boundary — - Wetland Boundaries Not Completel Wetland Known Extents Storm Catch Basins p Edmonds o Private ■ Infiltration Storm Manholes 0 Edmonds O Private 0 Infiltration o Detention Facilities Culvert • <all other values, • Yes o Facility Feature Creeks Storm Line — <all other values> No, BNSF, No, COUNTY, No, LYNI MOUNTLAKE TERRACE; No, POF SHORELINE: No. STATE: No. WOE Notes 16118 72nd Ave W