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STATE OF CALIFORNIA GEORGE DEUKMEJIAN, Governor <br />STATE WATER RESOURCES CONTROL BOARD "`Ea <br />PAUL R. BONDERSON BUILDING fo <br />)01 P STREET <br />P.O. BOX 100 c <br />SACRAMENTO, CALIFORNIA 95801 <br />zr <br />ENV <br />J U L 2 2 1986 t E° ,' <br />LETTER LG -37 <br />Local Implementing Agencies: <br />REGULATION OF LIQUID ASPHALT TANKS <br />This letter transmits the State Water Resources Control Board's (State Board) <br />response to a request by the California Asphalt Pavement Association to exempt <br />liquid asphalt tanks from the underground tank regulatory program. It was <br />determined that underground tanks storing steam -refined asphalts (i.e., the AR <br />series as classified in Section 92 of the California Department of <br />Transportation Standard Specifications) are not subject to the State <br />underground tanks regulations, because their contents do not pose a threat to <br />water quality. Our decision was supported by information received from <br />Caltrans regarding the environmental fate of this grade of asphalt. This <br />decision does not apply to other grades of liquid asphalt, such as grades SC - <br />800 and SC -3000 as designated in Section 93 of the aforementioned <br />specifications. We will inform you of any future determinations regarding the <br />regulation of other grades of liquid asphalt. <br />If you have any questions regarding this matter, please call Terry Brazell at <br />(916) 322-0202. <br />Sincerely, <br />Edward C. Anton, Chief <br />Program and Investigations <br />Division of Water Quality <br />Enclosure <br />cc: David Leu, Ph.D. <br />Toxic Substances Control Division <br />Department of Health Services <br />714/744 "P" Street <br />Sacramento, CA 95814 <br />