Agenda - Planning Commission - 07/12/2001

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CASE # REQUEST FOR CONDITIONAL USE PERMIT TO GRADE SOILS; CASE OF LANCE VAN NORMAN By: Steve Jankowski, City Engineer Background: In the fall of 2000, two residents, Lance and Jody Van Norman, 8991 160th Lane NW and Gary and Louise Jacobs, 8981 160th Lane NW undertook a joint project to excavate and deepen the existing pond on their properties. The spoils from the excavation have been cast on the northerly side of the ponds to form a landscaping berm. City Code requires that a mining and grading permit be obtained for such excavations. The property owners were informed of this requirement and had been asked to submit information on the landscape berm created by the fill. The purpose of this case is to review the submitted information and provide comment and/or direct corrective action to the excavation that has taken place. The following items are enclosed for your review: a) Site location map b) Topographic Survey dated May 23, 2001 c) Elevation Plan d) Letter of statement from Applicant e) Proposed Findings of Face f) Proposed Conditional Use Permit Observations: The pre-construction grades within the filled area ranged between 874 and 876 based upon the subdivision grading plan. The fill has been placed to an elevation of 882 to 884, an increase in height of 10 to 14 feet. Between 2000 - 3000 cubic yards of fill was placed over an area approximately 0.7 acres. Approximately 7000 square feet of the fill has been placed over the northerly boundary of the two properties performing the filling onto an outlot owned by Northfork Homeowners Association. It also appears from the survey contours that a minor amount of filling has occurred on the lot west of the Jacobson parcel. The slopes of the fill placed range between 30% to 35%. There is currently no topsoil and little vegetation on the fill material. There appears to be no significant impact of the fill on the drainage of the surrounding areas. Recommendations: The maximum slope allowed under the ordinance is 12%. The grading plan should be prepared to modify the slopes to conform to this requirement or a variance needs to be granted. A minimum of six inches of topsoil need to be placed over the fill material, seeded, mulched and disc anchored to prevent erosion during the turf establishment period. Plantings of evergreens had been indicated. The number and locations should be identified on the plan.