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07/15/2008 16:91 FAX 510 614 6 PARADISO MECHANICAL • Z002 <br /> State Water Resources Control Board <br /> Division of Water Quality <br /> 10011 Stre -Sacramento,Califomia 95914-(916)341-5782 <br /> Linda S.Adams Mailing Address:P.O.Box 2231-Sacmmenm,California•95812-2231 Arnold Sehwar cWcr <br /> Secre+aryfor FAX(916)341-5808-hapa/www.waierboards.mgov Gamer <br /> Envim mmial Prorecrion ' <br /> CERTIFIED MAIL NO. 7003 1680 0000 6172 5280 <br /> July 3, 2008 <br /> Mr. Mike Lewis <br /> Western Fiberglass, Inc. <br /> 1555 Copperhill Way <br /> Santa Rosa, CA 95403 <br /> Dear Mr. Lewis: <br /> CONDITIONAL APPROVAL OF THE WESTERN FIBERGLASS UNDER DISPENSER <br /> TRANSITION FRAME,AS AN UNDER DISPENSER SPILL CONTAINMENT OR <br /> CONTROL SYSTEM (UDSCCS) <br /> This letter is in response to your application for approval of the Western Fiberglass <br /> Under Dispenser Transition Frame as described below. <br /> Description of the UDSCCS <br /> The Western Fiberglass Under Dispenser Transition Frame is a conversion frame <br /> designed to allow larger dispensers to be installed above smaller existing under- <br /> dispenser containment (UDC). When piping within the dispenser falls outside the <br /> footprint of the UDC, Western Fiberglass Under Dispenser Transition Frame is designed <br /> to direct any leaking product into the UDC where it will be contained and detected, as <br /> required by California regulations'. <br /> The Western Fiberglass Under Dispenser Transition Frame is fabricated using a metal <br /> splashguard rim and a fiberglass deflector shield. The fiberglass deflector shield is <br /> manufactured using a spray-up process (chopper gun construction) of chopped <br /> fiberglass, polyester resin, and hardener. These materials are combined as they are <br /> sprayed onto a mold to a thickness of 3116 of an inch. The material is rolled to remove <br /> air and to verify contact with the mold, followed by curing and removal from the mold. <br /> Enclosure 1 shows a typical drawing of the Western Fiberglass Under Dispenser <br /> Transition Frame. Exact dimensions are determined from the design specifications <br /> ' For a detailed explanation of the requirements for dispenser piping refer to the State Water Board's <br /> December 21, 2007 letter"Clarification of Existing Regulations for Under-Dispenser Containment." <br /> California Environmental Protection Agency <br /> 0 Recycled Paper <br />