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CRA2023-0182 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 1/2/2024 JEFFREY G & PITTMAN J TAYLOR 16012 74TH PL W EDMONDS, WA 98026-4518 Subject: Critical Areas Determination (CRA2023-0182) Site Address: 16012 74TH PL 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 5ch Avenue North, Edmonds WA 98020 Phone: 425.771.0220 • Fax: 425.771.0221 • Web: www.edmondswa.gov PLANNING & DEVELOPMENT DEPARTMENT • PLANNING DIVISION `nc. 1891J Critical Area Determination (CRA2023-0182) 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 16012 74TH PL W Tax Account Number 00513105800100 Property Owner JEFFREY G & PITTMAN J TAYLOR Applicant RR FOUNDATION 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 Description The subject property is an approximate 22,651 square foot lot which contains multiple critical areas, including landslide hazard areas, severe erosion hazards, and a potential stream. The subject property is also adjacent to a mapped wetland. The soils on the site are classified as Alderwood Gravelly sandy loam, 15-25% slopes according to Snohomish County soils data. 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 north and west property lines contain approximate 64% slopes. Slopes greater than 40% are considered Landslide Hazard Areas. The southern portion of the property contains approximate 25% slopes. Slopes greater than 15% with the mapped soil composition are considered Severe Erosion Hazard Areas. According to the City's LiDAR information, the parcel is approximately 80- feet adjacent to a mapped wetland. During inspection of the subject site, a precipitous slope was confirmed on the north and west portion of the property, with drops of approximately 30 feet to 75th PI W. The majority of the parcel is flat save for moderate sloping on the southern boundary. A potential stream was observed on the southern border, running from east to west. No wetlands were observed as they are mapped off -site of the subject property. 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. Potential streams and offsite wetlands, as well as their associated buffers could impact the subject site. A qualified professional must assess the area to determine the classifications of the stream and 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. 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. Page 1 2 ROSE HAAS, Planner 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) 1/2/2024 Date City of Edmonds GIS map tool with approximate location of critical areas: http://maps.edmondswo.gov Page 13 V•. V ` City of Edmonds CRA2023-0182 Map I OVA Legend Creeks Seismic Hazard Areas t y , 0 I11 ►j 1 1lJ�Ja/ % - Earth Subsidence and Landslide # L ! Minimum Buffer Adjacent to Haz S l /. Wetlands Wetlands Boundary r' i A W. . ��,W�� / 'r � � d� Wetland Boundaries Not Completel Wetland Known Extents Floodplains � " : `~ '. A 4;A �� -•� �/ ;� *f„„.' A 1♦r. VE Landslide Hazard Area 40% ❑ Severe Erosion Hazard 15%-40% y • r �i, ' , I ,•.doo, �� F�. ❑ Erosion Hazard Areas 15/0 40/ �',� d • 6 /. � r .�d; � � VIP [l Tree Code Removal Slopes ArcSDE.GIS.STREET_CENTERLINE: <allothervalues> •� ./ .. , 1 , — OF, , �:/�j',l►�.�e 0, ♦V tr Sections Boundary Sections . 1: 758 / d• , I a,,/.i'1, O Notes 16012 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, 74th PL W WGS_1984_Web_Mercator_Auxiliary_Sphere © City of Edmonds current, or otherwise reliable. THIS MAP IS NOT TO BE USED FOR DESIGN OR CONSTRUCTION