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20090630121359.pdfInc. 1880 .lune 30, 2009 CITY OF EDMONDS 121 5ih1 AVENUE NOATH • EDMONDS, WA 98020 • (425) 771-0220 • FAX (425) 771-0221 Website: wwactedmondsma.us DEVELOPMENT SERVICES DEPARTMENT Planning • Building • Engineering Anthony & Cheryl De Genner 8503 199`h Place SW Edmonds, WA 98025 RE: Request for Alternate Design — Air Admittance Valve 8503 199` Place SW, Edmonds SPT200900015, Building Permit BLD20090114 Dear Mr. & Mrs. De Genner: GARY HAAKENSON MAYOR The City is in receipt of your request for Alternate Materials and Methods of Construction Equivalency for installation of an air admittance valve at the kitchen sink in your new addition to your home located at 8503 1991h Place SW, Edmonds. Air Admittance Valves are not an approved method of venting in the current State adopted Uniform Plumbing Code_ The proposal is to use one Studor Mini Vent for venting a kitchen sink. The reasons stated for the alternate venting source include issues with the grade of the existing waste/drain piping if a loop vent is installed, and boring of the existing foundation wall for the new piping. The request to use one air admittance valve to vent the previously noted plumbing fixture is hereby approved with the noted conditions below. ➢ Install per manufacturer's specifications ➢ The plumbing contractor must provide you with written directions as to how to inspect and maintain the air admittance valve. These directions shall be provided to all future property owners. Sincerely, Aran Bullis, CBO Building Official • Incorporated August 11, 1890 • Sister Citv - Hekinan- Javan