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r"011,14=11i <br />8"rawaM.CA <br />94244-2120 <br />2014 T Street, <br />Billa 130 <br />sanuum,CA <br />95814 <br />(916) 227-4323 <br />FAX (916) =7-4349 <br />www.v.,=b.=&ov <br />,SURNAM E <br />=WR 540 REV. 1186 <br />11 <br />A. Lew 1A <br />comem <br />CO. <br />MOM 4 <br />-0fi-ono 0 <br />Fax * <br />Fax # <br />onmental Hicalth Division <br />Resource Management Agency <br />800 South Victoria Avenue <br />Ventra, CA 93009-1730 <br />Dear Mr. Wada: <br />1�twfvtvw— W" <br />REGULATION OF VAPOR POTS <br />You sent us a letter asking if vapor pots are regulated as underground storage <br />tanks. The answer depends on whether or not the pots store product. According <br />to industry literature, vapor pots are small volume tanks installed in vapor recovery <br />Pules to provide a step up point for vapor recovery piping runs that cannot maintain <br />sufficient slope back to the tank. The step up can cause vapor to condensate and <br />collect in the vapor pot. If not removed, storage of product results. <br />To answer your question, we can refer to the de, nition of a pipe. According to <br />Section 25281.5 of the Health and Safety Code, vapor piping is mempt from <br />regulation if an overfill prevention device prevents standing fluidin the piping. In <br />. Z-9 <br />product. <br />Some vapor pots now on the market, are designed and constructed with an, <br />automatic system that removes condensate when it reaches a preset levef* This is <br />usually a pump or vacuum assisted evacuation via the underground storage tank's <br />submersible pump. If a vapor pot is designed, constructed, and installed with an <br />automatic condensate removal system to keep the vapor pot virtually empty then <br />the vapor piping and vapor pot remain exempt from regulation. Virtually empty <br />means that the product left after the pump has been activated can readily escape <br />from the vapor pot through vaporization. <br />To verify that the vapor pot. is designed and constructed with an automatic <br />condensate removal system, the local agency must review the vapor pot design <br />plans. If there is no automatic condensate removal system the pot would be <br />regulated and have to meet the requirements of Article 3 'California Code of <br />Regulations (CCR). <br />P*16 w4ion <br />Gavarar <br />:Juz- <br />