4704 HARBOR LN 2018-01-02 MF Import

�GA� Main Olrice 17311-135" Avenue NE. A-500 Woodinville, WA 96072 (425) 48&1669 FAX (425) 481-2510 (425) 337-1669 Snohomish Camty May 14, 2010 Rick and Iiolly Anderson 4707 Harbor Lane Evcrc:t, WA 98203 NELSON GEOTECHNICAL ASSOCIATES, INC. GEOTECHNICAL ENGINEERS & GEOLOGISTS Final Summary better Anderson Slope Stabilization Everett, Washington NGA File No. 816909 Dear Rickand Holly: EngIneerNp-Geology Bench 437 East Penny Road Wenaletm, WA 09901 (509) 665-7696 FAX (509) 665-7692 'Phis letter summarizes the slope stabilization, erosion control, and drainage improvements that have occurred on your property located at 4707 Harbor Iane in Everett, Washington. INTRODUCTION Your single-fanlily residence is situated on gently sloping ground above a steep northwest -facing slope overlooking Merrill & Ring Creek. The residence has a daylight basement, with an outdoor swimming pool and small jacuzzi located between the residence and the top of the steep slope. Two legal lots (Lot 48 and 49) tlLit belong to other property owners occupy portions of the slope below your residence. These lots are currently vacant and are classified as critical areas (steep slope,-) by the City of Everett. We do not anticipate that residences would be constructed on the slopes directly below your residence. In late June, 2009, an area of the upper portion of the slope downslopc from your residence experienced major slope movement shortly alter an irrigation line on the uphill side of your residence broke and discharged a substantial amount of water onto the slope. A scarp formed just below the top of the slope directly below your residence, and mud and slide debris traveled downslopc onto the two neighboring 1 /u;