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Chevron Quarterly Groundwater Monitoring Report(2Q2000) Page 2 of 2 <br /> Facility #9-6171 —6633 Pacific Avenue,Stockton,CA Date November 10,2000 <br /> DISCUSSION: <br /> This groundwater monitoring and sampling event was performed by Gettler-Ryan Inc on May 22,2000 Seven <br /> wells were sampled during this event TPHg was reported in six of the wells sampled at concentrations ranging <br /> from 120 ppb in OW-1 to 340 ppb in MW-3 Benzene was reported in three of the wells at concentrations of 0 54 <br /> ppb in MW-3, 1 3 ppb in MW-6, and 2 2 ppb in MW-2 MtBE was reported in MW-6 and MW-7 at concentrations <br /> of 14 ppb and 9 1 ppb,respectively Groundwater analytical results were generally consistent with historical data <br /> Groundwater elevations across the site increased an average of approximately 2 21 feet this quarter Groundwater <br /> flow was to the northeast at 0 01 to 0 001 ft/ft <br /> LIMITATIONS: <br /> The findings presented in this letter are based on data and interpretations provided by Gettler-Ryan, Inc Gettler- <br /> Ryan's report is attached The data presented in this summary is accurate only to the degree implied by the sources <br /> and methods used No warranty, expressed or implied, is made by SECOR <br /> If you have any questions,please feel free to call us at(916)861-0400 <br /> Sincerely, <br /> SECOR International Inc <br /> &Z?I4%0fA0re <br /> Project Manager <br /> ATTACHMENTS: <br /> • Attachment A—August 30,2000 Groundwater Monitoring& Sampling Report by Gettler-Ryan Inc <br /> cc Bob Cochran,Chevron Products Company, P O Box 6004, San Ramon, CA 94583-0804 <br /> Marty Hartzell, RWQCB-CVR, 3443 Routier Road, Suite A, Sacramento,CA 95827 <br /> Wilbur Smith II, Sims-Grupe Management, 374 Lincoln Center, Stockton, CA 95207 <br /> Donald Bradshaw, Levine-Fricke-Recon, 1900 Powell Street, 12`i'Floor, Emeryville, CA 94608-1827 <br /> Greg Gurss, Gettler-Ryan Inc, 3164 Gold Camp Drive, Suite 240 Rancho Cordova, CA 95670 <br />