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GROUNDWATER <br /> TECHNOLOGY, INC. <br /> 1401 Halyard Drive,Suite 140,West Sacramento.CA 96691.(916)372-4700 <br /> I <br /> FAX(916)372-8781 <br /> March 20, 1992 Project No. 02320 2241 <br /> Mr. Clint Rogers <br /> Chevron U.S.A. Products Company <br /> P.O. Box 5004 <br /> San Ramon, CA 94583-0804 <br /> I <br /> RE: CHEVRON SERVICE STATION NO: 9-4275 i <br /> 2905 W. BENJAMIN HOLT DRIVE <br /> STOCKTON, CALIFORNIA <br /> I <br /> Dear Mr. Rogers: <br /> This letter is presented in response to your request for information on the status of the Stockton <br /> Municipal Well #10 (20M2) located on the Swensen Park Golf Course, approximately 70 feet east of <br /> the Chevron site. The well is a seldom used municipal supply well and is screened from 295 to 353 <br /> feet below ground surface. The well has been sampled and analyzed for Title 22 constituents from <br /> May 1988 through January 1990 on a quarterly basis (Attachment A). The well was last sampled <br /> March 1991. No benzene, toluene, ethylbenzene or xylenes (BTEX) have been detected in any of the <br /> samples analyzed. Chevron, directed by San Joaquin County Public Health Services (SJCPHS), <br /> requested that Groundwater Technology sample the well. On March 17, 1992, Groundwater <br /> Technology sampled the well and submitted the samples to Superior Analytical Laboratories for total <br /> petroleum hydrocarbons-as-gasoline (TPN-G) and BTEX analyses. The results of these analyses will <br /> be included in the upcoming quarterly report which is due April 1992 to SJCPHS. <br /> i <br /> If you have any questions regarding this matter, please contact our West Sacramento office. <br /> Sincerely, <br /> GROUNDWATER TECHNOLOGY,-INC. <br /> �; /� �Lam✓ /"�� ; <br /> JOHN T. BORKOVICH <br /> Senior Project Geolloj''st <br /> AMES W. GRASTY <br /> Environmental Geologist-, <br /> Project Manager <br /> JTB/JWG:rc <br /> Attachments <br /> 2241 SMW.LTR <br /> Offices throughout the U.S.,Canada and Overseas <br />