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Workplan for Aquifer Pumping Test, Well Installation&Well Destruction Southwest Hide Company,Manteca,CA Project No.W0508.00 Page 4 or until fluid stabilizes. Response will be monitored in the extraction well and also in two temporary wells and existing wells 5, 15, and 17 throughout the tests. It is proposed that extracted groundwater be discharged directly to the adjacent field for the duration of the test. The concentration of TDS in well 8 was 192 milligrams per liter (mg/P) during the last monitoring episode in June 1993. The concentration of TDS in Well 8 has consistently been well below the maximum contaminant level of 1000 mg/f established by the State of California for drinking water (Second Quarter 1993 Groundwater Monitoring Report, Southwest Hide Company Facility, RESNA Industries, Inc., June 28, 1993). Task 6 - Abandon Temporary Monitoring Wells Following the completion of the aquifer pumping test the two temporary monitoring wells will be abandoned according to the procedures outlined in Task 2. Task 7 - Summary Report Preparation A letter report will be prepared and submitted to the RWQCB and San Joaquin County Department of Environmental Health. The report will detail test procedures and results and will include an evaluation of the feasibility of groundwater remediation by extraction as part of the GWRAP. This letter report will also include a summary of the well installations and abandonments along with corresponding boring/well logs and analytical results. PROJECTED SCHEDULE The projected schedule for completing the tasks described above are as follows: • Task 1 - Permitting and Scheduling 1 Week • Task 2 - Abandon Two Existing Wells 1 Day • Task 3 - Install Three Wells 1 Day • Task 4 - Well Survey and Development 1/2 Day • Task 5 - Conduct Aquifer Pumping Test 1 1/2 Days • Task 6 - Abandon Two Temporary Wells 1 Day • Task 7 - Summary Report Preparation 3 Weeks WP-0893.FNL