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CRA2021-0100 Critical Area DeterminationCITY OF EDMONDS 121 5t" Avenue North, Edmonds WA 98020 Phone: 425.771.0220 • Fax: 425.771.0221 • Web: www.edmondswa DEVELOPMENT SERVICES DEPARTMENT • PLANNING DIVISION `ne. 18y\3 6/24/2021 TRAVIS & ALEXANDER CL ALEXANDER 17504 72ND AVE W EDMONDS, WA 98026-5105 Subject: Critical Areas Determination (CRA2021-0100) Site Address: 17504 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 "STUDY REQUIRED." Note that this determination is a site -specific determination and not a project -specific determination. If the critical area determination is "STUDY REQUIRED," 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, a,le (,; AMBER GROLL 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 `'lc. 189v Critical Area Determination (CRA2021-0100) 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 17504 72ND AVE W Tax Account Number 00456000001000 Property Owner TRAVIS & ALEXANDER CL ALEXANDER Applicant STEVE HALL Critical Area Present ❑ Wetlands (ECDC 23.50): NA ❑ Frequently Flooded Areas (ECDC 23.70): NA Geologically Hazardous Areas (ECDC 23.80) R Erosion Hazard Areas: Yes li4 Landslide Hazard Areas: Yes ❑ Seismic Hazard Areas: No ❑ Fish & Wildlife Habitat Conservation Areas (ECDC 23.90) ❑ Mapped Fish & Wildlife Habitat: NA ❑ Streams: NA Site Description The subject property lies on the west side of 72nd Ave West. There is an existing residence on the eastern portion of the property, where the site is fairly level, particularly along 72nd Ave West. From the residence towards the western portion of the property, the site contains slopes of 25-49%, according to the City's LiDAR data. Slopes exceeding 40% are potential landslide hazards. According to the Snohomish County Soil Survey, soils on the subject site are identified as Alderwood Gravelly sandy loam, 15-25% slopes. The steepness f the slopes together with the soil classification classifies the slopes as potential severe erosion and landslide hazards, pursuant to Edmonds Community Development Code (ECDC) Chapter 23.80. 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. AMBER GROLL Name, Title 6/23/2021 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.edmondswa.gov Page 12 City of Edmonds CRA2021-0100 Lyn Eamontls N al 1W.7J Moun:l.• Legend ac, � o _ - Creeks Seismic Hazard Areas Earth Subsidence and Landslide N _ r— L! Minimum Buffer Adjacent to Hat 0 Wetlands s Wetlands Boundary - Wetland Boundaries Not Completel p Wetland Known Extents 1 Floodplains �T - �: ® A AE ® VE 71 PX LCCoontour Lines 2 10: 50 — 100 3A'83552 Landslide Hazard Area 40% 3 354 - ❑ Severe Erosion Hazard 15%-40% 356 �''` ❑ Erosion Hazard Areas 15%-40% " ArcSDE.GIS.STREET CENTERLINE: $ - — <all other values, 3 ___ 1 I s 2 �, �Yf �• 5,4 - !L� 9: 71: 7: 8 362 Ohl 1- 3/9 Notes 17504 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 - 72nd Ave W 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