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ry R 'I <br /> Working To Restore Nature <br /> 1710 Main StreetR h <br /> Escalon, CA 95320 M <br /> h I V IFIM. L; <br /> Phone (209) 838-3507 F E 0 a 6 1993 <br /> FAX (209) 838-3509 9NVIR0NM9Nt4k HEALTH <br /> RERMI SERVICE February 5, 1993 <br /> Mr Harlin Knoll <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P O Box 2009 <br /> Stockton, CA 95201 <br /> RE First Quarter 1993 Monitoring Report for San Joaquin Catholic <br /> Cemetery, Harding Way and Cemetery Lane, Stockton, California, <br /> (County Site Code 1582) <br /> Dear Harlin <br /> On January 25, 1993, groundwater monitoring was conducted at the above referenced site on <br /> wells MW1, MW2, and MW3 (Figure 1) During monitoring, the depths to water were <br /> measured, the wells were purged and samples were collected pursuant to RESNA's Quality <br /> Assurance/Quality Control Plan Well purge logs and monitoring data are included in <br /> Attachment 1 <br /> Groundwater elevations have dropped an average of 2 66 feet in the wells since the May 1992 <br /> monitoring Groundwater monitoring data is summarized in Table 1 The gradient was <br /> calculated to be in a northeasterly direction at 0 002 ft/ft, which is steeper and more easterly <br /> than in May 1992 (Figure 2, Groundwater Gradient Map) <br /> Samples collected were analyzed for benzene, toluene, ethylbenzene, and xylenes (BTEX), and <br /> total petroleum hydrocarbons as gasoline (TPHG) utilizing EPA method 5030/802018015 <br /> Dissolved petroleum hydrocarbons were detected in monitoring wells MW1, MW2, and MW3 <br /> Analytical data is presented in Table 2 The laboratory data sheets and chain-of-custody <br /> documentation are included in Attachment 2 Laboratory analyses were conducted by RESNA <br /> Environmental Laboratories, Cal EPA, ELAP Certification No 1211 <br /> 1QR-1993 FNL <br />