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Chevron Groundwater Monitoring Report(4Q2001) Page 2 of 2 <br /> Facility 99-1848—1257 Yosemite Avenue,Manteca CA Date January 2,2002 <br /> • <br /> DISCUSSION: <br /> This groundwater monitoring and sampling event was performed by Gettler-Ryan Inc on October 10,2001 Three <br /> wells were sampled during this event TPHg and MtBE concentrations were reported in the sample collected from <br /> well C-2 at 78 µg/1,and 400µg11, respectively Groundwater elevations across the site decreased an average of <br /> approximately 0 49 feet this quarter Groundwater flow was calculated to be to the north-northeast at <br /> approximately 0 005 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 /> og Hoffmore <br /> Project Manager <br /> ATTACHMENTS. <br /> • Table I —Screen Intervals <br /> • Attachment A—November 2, 2001 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 /> Donna F'eletto, Pan Pacific Retail Properties, 8785 Center Parkway, Suite B-350, Sacramento, CA 95823 <br />