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Chevron Quarterly Groundwater Monitoring Report(3Q2000) Page 2 of 2 <br /> Facility #94275—2905 West Benjamin Holt Drive,Stockton,CA Date November 10,2000 <br /> • <br /> DISCUSSION: <br /> This groundwater monitoring and sampling event was performed by Gettler-Ryan Inc on September 13, 2000 Ten <br /> wells were sampled during this event TPHg and benzene were not detected in any of the ten wells,TPHg,BETX, <br /> and MtBE were reported as non-detectable in six of the wells TPHg and BTEX decreased from th previous event <br /> to non detectable levels in MW-1, MW-2, and MW-6 MtBE was reported at concentrations of 8 20 ppb in MW-2 <br /> and 619 ppb m MW-4 MtBE concentrations decreased from the previous quarter Groundwater elevations across <br /> the site decreased an average of approximately 2 00 feet this quarter Groundwater flow was northwest at 0 001 to <br /> 0 003 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 /> • <br /> Rog r Hoffmo <br /> Project Manager <br /> ATTACHMENTS: <br /> • Attachment A—October 13,2000 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 /> Mark List, RWQCB-CVR,3443 Routier Road, Suite A, Sacramento,Ca 95827 <br /> Greg Gurss, Gettler-Ryan Inc ,3164 Gold Camp Drive, Suite 240 Rancho Cordova, CA 95670 <br />