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Chevron Quarterly Groundwater Monitoring Report(2Q2000) Page 2 of 2 <br /> Facility #94275—2905 West Benjamin Holt Drive,Stockton,CA Date November 10 2000 <br /> ` DISCUSSION: <br /> This groundwater monitoring and sampling event was performed by Gettler-Ryan Inc on June 13,2000 Ten wells <br /> were sampled during this event TPHg, BETX,and MtBE were reported as non-detectable in four of the wells <br /> TPHg concentrations were reported in three wells ranging from 70 8 ppb in MW-I to 1,770 ppb in MW-2 Benzene <br /> concentrations were reported in MW-6 at 168 ppb and in MW-2 at 47 3 ppb MtBE was reported in four wells at <br /> concentrations ranging from 13 6 ppb in MW-3 to 896 ppb in MW-4 Groundwater elevations across the site <br /> decreased an average of approximately 167 feet this quarter Groundwater flow was to the northwest at 0 002 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 /> Ro�rH <br /> *fm <br /> Protect Manager <br /> ATTACHMENTS: <br /> • Attachment A—October 6,2000 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 />