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STATE OF CALIFORNIA-Environmental ProteA—gency • PETE WILSON, Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD .,U0. <br /> CENTRAL VALLEY REGION �3443 Routier Road, Suite A <br /> Sacramento, CA 95827-3098 <br /> PHONE: (916)255-3000 <br /> DOD FAX (916)255-3052 p <br /> Nov s <br /> 16 November 1992 ENV 1RaN1V E 1992 <br /> me M17i� �y� EpLTl <br /> Mr. Nathan Esformes <br /> Triple E Produce Corp. <br /> P. 0. Box 239 <br /> Tracy, CA 95378 <br /> REGIONAL WELL SURVEY OF TRACY AREA, SAN JOAQUIN COUNTY <br /> The Regional Board is currently conducting a regional well survey in the Tracy <br /> area to try to determine the potential source of carbon tetrachloride (CC1,) <br /> ground water contamination. Two domestic wells (25080 and 25516 South Banta <br /> Road) have been contaminated by volatile organic constituents (VOCs) . Samples <br /> from these wells contain concentrations of CCI, at three times the Primary <br /> Maximum Contaminant Level (MCL) of 0.5 micrograms per liter (µg/1 ) . <br /> In order to assess this ground water contamination, we would like to have <br /> access to your monitor wells to measure ground water levels and to collect and <br /> analyze water quality samples. These data would be beneficial to our survey <br /> by defining the up gradient ground water quality. <br /> All of the data collected during this regional well survey is public <br /> information. We plan to send you the analytical results for any samples <br /> collected from your monitor wells. With your permission, we would like to <br /> sample your wells sometime after 7 December 1992. We will contact you to <br /> confirm the best dates for sampling your wells. <br /> If you have any <br /> 99 questions, please call me at (916)255-3069. <br /> yam"NrU <br /> CAMILLA WILLIAMS <br /> Engineering Geologist <br /> CKW:cw <br /> cc: Mr. Marshall Cloud, Defense Distribution Region West, Tracy, Tracy <br /> Ms. Margaret Lagorio, San Joaquin County Public Health Services, <br /> Environmental Health Department, Stockton <br /> Mr. Robert Dixon, AGRO Environmental Services, Stockton <br />