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i <br /> _STATE OF CALIFORNIA-Environmental ProtectiLency ( PETE WILSON,Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION �� °F`"` <br /> 3443 Routier Road,Suite A _ <br /> Sacramento,CA 95827-3098 <br /> PHONE:(916)255-3000 <br /> FAX:(916)255-3015 hv� <br /> 24 October 1996 <br /> Ms. Margaret Lagorio <br /> San Joaquin County Environmental Health Division <br /> -P.O. Box 388 <br /> Stockton, CA 95201-0388 <br /> CHEVRON SITE, 2905 WEST BENJAMIN HOLT DRIVE, STOCKTON,SAN JOAQUIN COUNTY <br /> In preparation for our meeting, 24 October 1996, I reviewed the file for the site. My review revealed <br /> that Chevron continues to exceed water quality objectives of the Basin Plan of the Central Valley <br /> Regional Water Quality Control Board. The maximum ground water contamination detected at the site, <br /> found in MW-1 at 30,000 ppb TPHg and 3600 ppb benzene in March 1989, showed no appreciable <br /> reduction by June 1996 (30,000 ppb TPHg and 2300 ppb benzene). <br /> In addition,we find the following: <br /> 1. No remediation of any kind has been implemented to attempt to achieve water quality objectives. <br /> 2. City of Stockton Municipal Well#10 is within the ground water contamination plume. No <br /> sample data for this well or other nearby municipal wells have been submitted to the Board. <br /> 3. Chevron has a history of delays at this site andds not in compliance with County directives. <br /> 4. At a December 1995 meeting with you, Chevron agreed to meet a time schedule,which included <br /> interim remediation by 15 April 1996 and submittal of a Corrective Action Plan by 15 October <br /> 1996. Chevron has not complied with the schedule. <br /> Because Chevron has failed to comply with your directives and has made no attempt to meet Basin.Plan ! <br /> water quality objectives,we consider Chevron ineligible for State Underground Storage Tank Cleanup <br /> Funds. Continued failure to comply may result in formal enforcement against Chevron. If you have any <br /> questions,please call me at(916) 255-3133. <br /> C <br /> ELIZ ETH A. THAYER <br /> Associate Engineer <br /> cc: Ms. Annabel Mackey, Cleanup Fund, State Water Resources Control Board <br /> Mr. Brett Hunter, Chevron, San Ramon <br />