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CRA2024-0089 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 'lle. 10j 6/20/2024 TIMOTHY E & LAURIE A BELL 7522 178TH PL SW EDMONDS, WA 98026-5531 Subject: Critical Areas Determination (CRA2024-0089) Site Address: 7522 178TH PL SW 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 'nc. 1891i Critical Area Determination (CRA2024-0089) 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 7522 178TH PL SW Tax Account Number 00748100001200 Property Owner TIMOTHY E & LAURIE A BELL Applicant NICOLE HEWLETT 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: Yes Site DescriDtion The subject property is an approximate 8,276 square -foot lot which is adjacent to potential landslide hazard areas and is adjacent to a potential wetland and potential associated stream. The soils are classified as Alderwood Urban Land complex, 2-8% slopes according to Snohomish County soils data. According to LiDAR data, an approximate 15% slope traverses the northeastern portion of the property. LiDAR data also indicates an approximate slope of 49% immediately adjecent to the property on the southern border. Slopes of 15-40% with this soil type are considered erosion hazard areas and slopes greater than 40% are considered landslide hazard areas. According to the City's GIS information, a potential wetland is located approximately 150 feet from the east of the subject property across 76th Ave W. GIS data also indicates a potential associated waterway approximately 80-feet from the east of the subject property across 76th Ave W and another potential waterway approximately 40-feet from southwest corner of the property line. During inspection of the subject site, it was confirmed that the parcel is developed and relatively flat. A minor east -west slope was observed on the west side of the single-family home and a steep south -north downward slope was observed on the south side of the property. Neither the wetland nor the two associated mapped waterways were identified during the site visit, but the GIS mapped wetland and waterways presented as a heavily wooded area west of the 76th Ave W. No waterway was discovered south of the property. 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. Any land disturbing activity within 50 feet of the landslide hazard area will require a geotechnical report per requirements of ECDC 23.80, with specific reference to ECDC 23.80.060 and ECDC 23.80.070. A wetland biologist may need to provide a site assessment and functional analysis report that demonstrates the interrupted buffer area is functionally isolated due to 76th Ave W or that the buffer of the wetland is not within site's developable footprint. 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 6/20/2024 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://mcips.edmondswo.gov Page 13 City of Edmonds CRA2024-0089 Map iR Legend Creeks ' lSeismic Hazard Areas 7525 7517 7505 Earth Subsidence and Landslide L Minimum Buffer Adjacent toHa2 D _ 37 Wetlands Wetlands Boundary Wetland Boundaries Not Completel 3-1 = Wetland Known Extents 3-14 Floodplains ® A ® AE r3 _ ® VE 7522 - r 7514 7502 x Recharge Aquifer Critical A a Areas q g _• ^ V QVa Soils �Q) . 6 Month 1 Year �MyEl 5 Year 10 Year t'- - Buffer Zone i Storm Catch Basins ❑ Edmonds 3 -37 ■ Private 3-6 q ■ Infiltration storm Manholes Edmonds Notes 178th PL 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 7522 SW 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