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u/ i? z0u8 16:34 FAX 510 614 9996 PARADISO MECHANICAL <br /> U002 <br /> State Water Resources Control Board <br /> ; p . <br /> Division of Water Quality <br /> 1001 1 Street-.SUMnWlna,California 95814-(916)'41. 5782 <br /> Litida S.Adans Mailing Address:P.O.Box 2231•Sacnnlen[o,Califomin-95912-2231 <br /> Secreruryfor FAX(916)341-3503-hiEp//www.watcrboarcis.ca.gov Amold Schwa&negger <br /> E"iromnental Pmrredon IGwemor <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 3/16 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 /> ,ro lWycled Paper <br />