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5 <br /> Chevron Groundwater Monitoring Report QQ200I) Page 2 oft <br /> Facility #9-9840--4344 Waterloo Road Stockton CA Date July 13,2001 <br /> • DISCUSSION: <br /> This groundwater monitoring and sampling event was performed by Gettler-Ryan Inc on May 17,2001 TPHg was <br /> reported in samples from one well and, benzene and MtBE were reported in samples from two of the three wells <br /> sampled TPHg concentrations were reported at 92 pg/l in MW-1 Benzene concentrations were reported at <br /> 2 0 ug/l in MW-I and 7 1 µg11 in MW-2 MtBE concentrations(by EPA Method 8260)were reported at 180 gg/l in <br /> MW-1 and 23 µg/1 in MW-2 Groundwater elevations across the site increased an average of approximately 0 04 <br /> feet this quarter Groundwater flow was to the northeast at 0 002 ft/ft,consistent with historical data <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 /> vld�( ;� 11pe, <br /> • William E Brasher, P E <br /> Project Manager <br /> ATTACHMENTS: <br /> • Table 1 —Screen Intervals <br /> • Attachment A—lune 13,2001 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 /> Joseph Budiselich,4514 Waterloo Road, Hwy 88, Stockton, CA 95215 <br /> Kevin Lee, Subway,4410 Waterloo Road, Stockton, CA 95215 <br /> i <br />