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i <br /> . Ground Water Aquifer Pumping Test Report-First Quarter 2001 <br />' PACIFIC MINI-MART <br /> 4511 Pacific Avenue, Stockton, California <br />' 1.0. INTRODUCTION AND SCOPE OF WORK <br />' At the request of Mr Art Wyatt,Advanced GeoEnvironmental, Inc (AGE) has prepared this report <br /> for a ground water aquifer pumping test conducted during the first quarter of 2001 at 4511 Pacific <br /> Avenue, Stockton, California (the site) Figure 1 shows the site location Site structures and <br />' monitoring well locations are depicted on Figure 2 <br /> The objective of the work was to obtain general ground water aquifer characteristics and to evaluate <br />' aquifer response to ground water extraction at a constant pumping rate This report is prepared in <br /> accordance with guidelines established by the California Regional Water Quality Control Board - <br /> Central Valley Division for investigation of underground storage tank (UST) sites <br />' <br /> Background information is summarized in Quarterly Report - March 1996 dated 30 April 1996 <br />' prepared by AGE <br />' 2.0 INSTALLATION OF GROUND WATER EXTRACTION WELL <br /> On 20 March 2001, ground water extraction well EW-1 was installed at the site for performance of <br />' a ground water pumping test, the well installation procedures were outlined in Monitoring Well <br /> Installation and Interim Ground Water Remediation Work Plan, dated 26 October 2000, prepared <br /> by AGE and approved by the San Joaquin County Public Health Services - Environmental Health <br />' Division (PHS-EHD) by letter dated 01 November 2000 <br />' 2 1 INSTALLATION PROCEDURES <br /> One soil bonng/ground water extraction well (EW-1) as advanced at the site to perform the ground <br /> water aquifer pumping test Soil boring EW-1 was advanced vertically to a depth of 45 feet below <br /> surface grade (bsg) utilizing a CME-75 high-torque, truck-mounted drill rig equipped with 12-inch <br /> diameter hollow-stem augers Soil cuttings and rinseate were containerized in DOT-approved 55- <br /> gallon drums and placed in the southeast portion of the site The soil boring locations are depicted <br /> in Figure 2 <br /> • <br />' Advanced GeoEnvironmental Inc <br />