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a <br /> Working To Restore Nature <br /> 1710 Main Street 28 PM 31 <br /> Escalon, CA 95320 <br /> Phone (209) 838-3507 <br /> FAX (209) 838-3509 <br /> November 18, 1994 <br /> 150041 01 <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 /> Subject Fourth Quarter 1994 Monitoring Report for San Joaquin Catholic <br /> Cemetery, Harding Way and Cemetery Lane, Stockton, <br /> California, (County Site Code 1582) <br /> Dear Harlin <br /> On October 26, 1994, groundwater monitoring and sampling was conducted at the above <br /> referenced site (Plate 1) The depths to water in wells MW1, MW2, MW3, MW4, and MW5 <br /> were measured, the wells were purged and samples were collected pursuant to RESNA's <br /> Quality Assurance/Quality Control Plan Well purge logs and monitoring data are included in <br /> Attachment 1 <br /> Groundwater levels have dropped an average of 3 62 feet in the wells since the previous <br /> monitoring event Groundwater monitoring data are summarized in Table 1 The gradient on <br /> October 26, 1994 was calculated to be in a north-easterly direction at 0 0025 ft/ft (Plate 2, <br /> Groundwater Gradient Map) <br /> Groundwater samples collected from the five wells were analyzed for benzene, toluene, <br /> ethylbenzene, and xylenes (BTEX), and total petroleum hydrocarbons as gasoline (TPHg) <br /> utilizing EPA method 50301802018015 Dissolved petroleum hydrocarbons were detected in <br /> monitoring wells MWI, MW2, and MW3 Analytical data is presented in Table 2 The <br /> laboratory data sheets and chain-of-custody documentation are included in Attachment 2 <br /> 1500411QUARTLYI4QR-1994 doe 1 <br />