Laserfiche WebLink
`PUBLIC F-2ALTH SERVICES <br />SAN JOAQUIN COUNTY <br />ENVIRONMENTAL HEALTH DIVISION <br />Karen Furst, M.D., M.P.H., Health Officer <br />304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br />209/468-3420 <br />To Whom It May Concern <br />ANALYSIS REQUIRED FOR OXYGENATE COMPOUNDS <br />SEP 2 51997. <br />San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) is under <br />Local Oversight Program (LOP) contract with the California State Water Resources Control <br />Board (SWRCB) to provide oversight for the investigation and cleanup of unauthorized releases <br />from underground storage tanks. This contract includes a provision for technical support by the <br />California Central Valley Regional Water Quality Control Board (CVRWQCB). <br />PHS/EHD has recently received a letter from the CVRWQCB that provides guidance on how to <br />analyze for the oxygenated compounds in gasoline until a "definitive protocol" can be <br />established. Based on this letter, PHS/EHD is directing you to analyze samples from all of <br />your monitoring wells for Tertiary Butyl Alcohol (TBA), Methyl Tertiary Butyl Ether (MTBE), Di - <br />isopropyl ether (DIPE), Ethyl Tertiary Butyl Ether (ETBE) and Tertiary Amyl Methyl Ether <br />(TAME) by EPA method 8260. PHS/EHD will require analysis of samples for Methanol and <br />Ethanol where there is reason to believe that these compounds were stored in the underground <br />tank(s). <br />PHS/EHD requires quarterly sampling of all wells where the presence of oxygenates is <br />confirmed by EPA method 8260. Modification of this required sampling such as number of wells <br />sampled, sampling frequency and method of analysis may be granted only after initial sample <br />results are reviewed by PHS/EHD. Any modification of the required sampling must have <br />PHS/EHD approval prior to implementation. <br />For additional information please call your LOP contact. <br />Donna Heran, REHS, Director <br />Environmental Health Division <br />Margaret Lagorio, REHS <br />LOP Supervisor <br />encl. <br />A Division of San Joaquin County Health Care Services <br />