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Chevron Groundwater Monitoring Report(I Q2002) Page,2 of 2 <br /> t acilrty #9-9840-4344 Waterloo Road,Stockton,CA Date March 27,2002 <br /> DISCUSSION; <br /> This groundwater monitoring and sampling event was performed by Gettler-Ryan Inc on January 4, 2002 Three <br /> monitoring wells were monitored and sampled during this event TPHg was detected in the samples collected from <br /> MW-1 and MW-2 at concentrations of 57 µg/l and 52 µg/1, respectively Benzene was not detected in any of the <br /> samples collected MtBE was detected using EPA Method 8260 at concentrations of 37 µg/l in the sample collected <br /> from MW-1 and 45 µgll in the sample collected from MW-2 Groundwater elevations across the site decreased an <br /> average of approximately l 89 feet this quarter Groundwater flow was to the northeast at 0 002 ft/ft, consistent <br /> 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 /> Brian Silva <br /> Project Manager <br /> ATTACHMENTS• <br /> • Table 1 --Screen Intervals <br /> • Attachment A—February 1,2002 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 Routter 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 />