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CRA2024-0064 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-, 5/15/2024 ADAM\TEASHIA FRENCH 750 NORTHSTREAM LN EDMONDS, WA 98020-2637 Subject: Critical Areas Determination (CRA2024-0064) Site Address: 750 NORTHSTREAM LN 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 (CRA2024-0064) 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 750 NORTHSTREAM LN Tax Account Number 00532500001200 Property Owner ADAM\TEASHIA FRENCH Applicant PERMIT MANAGER 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: ❑ Streams: Yes Site Description The subject property consists of an approximate 13,068 square foot lot which contains a single-family residence and another approximate 13,068 square foot vacant lot to the south. Both parcels contain multiple critical areas, including landslide hazard areas, erosion hazards, and a stream. According to Snohomish County soils data, the parcels are made up of Everett gravelly sand loam, 8-15% slopes. LiDAR data indicates that the vacant parcel to the south contains slopes greater than 40%. Slopes greater than 40% are considered Landslide Hazard Areas. MAR data also indicates that the western portion of the developed property and the majority of the vacant property to the south contain approximate 25% slopes. Slopes greater than 15% with the mapped soil composition are considered Erosion Hazard Areas. According to the City's GIS information, Northstream Creek runs through the southwest corner of the developed property and across the vacant property to the south, east to west. During inspection of the subject site, Northstream was identified on the parcels, and steep slopes were identified on west side of the developed home. Slopes were also identified running along the north and south sides of the stream bed, with slopes on the southern side of the stream presenting as more precipitous. Any land disturbing activity within 50 feet of the landslide hazard areas 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 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) 5/8/2024 Date City of Edmonds GIS map tool with approximate location of critical areas: http://Mops.edmondswo.gov Page 13 City of Edmonds CRA2024-0064 Map o * 0 Legend "Al• "I Creeks �o _ ❑ Seismic Hazard Areas Earth Subsidence and Landslide L ! Minimum Buffer Adjacent to Hat Wetlands • Wetlands Boundary �� • Wetland Boundaries Not Completel i _ \ Wetland Known Extents �4! Floodplains t O ® A ® AE ® VE J X i O� Critical Aquifer Recharge Areas t p �A QVa Soils Month O6 '� �t-� �r 1 Year ❑ 5 Year 1 O 10 Year M� f _ nBuffer Zone • Contour Lines � 10 - - 50,100 f ort str ❑ Landslide Hazard Area 40% � ❑ Severe Erosion Hazard 15%-40% n • 1: 758 O Notes 750 Northstream UN 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 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