WORK PLANS_PART 2 FILE 1 - Laserfiche WebLink

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TABLE 1 EXTRACTION WELL COMPLETION DETAILS FORMER OCC-LATHROP FACILITY LATHROP,CALIFORNIA Reference Screen Nominal Screen Screen Slot Pump Intake Aquifer Well Elevation Total Depth Interval Diameter Size Screen Depth Intervals Name feet amsl feet b s /eet b s inches inches Material feet bgs) Screened Notes Current Status Former OCC Lathrop Facility Extraction Wells EW-01 21.40 220 135-210 10 0.070 Stainless steel — I,D — Out of Service EW-02 19.00 220 150-210 10 0.070 Stainless Steel 185 D — Operating under treatment system optimization program EW-03 17.43 210 60-94 10 0.070 Stainless Steel -- S,I,D Packer pushed to 185 it bgs and well Being converted to injection well 134-200 redeveloped December 2012 EW-04 16.00 200 105-125 8 0.070 Stainless Steel 123 I,D Well redeveloped and rehabilitated Off-line,not suitable for injection 170-190 previous screening interval 70-103 EW-04A 17.31 218 158-213 8 0.035 Stainless Steel 145 D _ Operating under treatment system optimization program EW-05 12.37 170 70-160 8 0.070 Stainless Steel 105 S,I,D — Off-line 120-150 Well redeveloped and rehabilitated, EW-06 19.58 210 6 0.035 Stainless Steel 123 I,D previous screening interval 90-100 Operating under treatment system 160-210 feet bgs sealed by swedging optimization program EW-07 18.25 206 136- 206 8 0.035 Stainless Steel 100 I,D New pump/motor installed April 2011 Off-line 70-100 Operating under treatment system EW-8A 18.34 136 6 0.020 PVC 117 S. Well installed in August 2008 115-130 optimization program EW-86 18.55 208 159-199 6 0.020 PVC 181 D Well installed in August 2008 Operating under treatment system optimization program EW-09 22.26 40 1040 6 0.010 Stainless steel — WT Well installed December 21,2011 Operating under treatment system optimization program EW-10 NA 45 1040 6 0.010 Stainless steel NA WT Well installed January 30,2013 Currently awaiting connection to the treatments stem and startup EW-11 NA 45 10-40 6 0.010 Stainless steel NA WT Well installed January 30,2013 Currently awaiting connection to the treatments stem and startup EW-12A NA 155 70-100 6 0.010 Stainless steel NA S,I Well installed January 25,2013 Currently awaiting connection to the 120-150 treatments stem and startu EW-12B(R) NA 185 150-180 6 0.010 Stainless steel NA D Well installed March 8,2013 Currently awaiting connection to the treatments stem and startup EW-13 NA 155 120-150 6 0.010 Stainless steel NA I Well Installed January 23,2013 Currently awaiting connection to the treatments stem and startup EW-14A NA 155 70-100 6 0.010 Stainless steel NA S,I Well Installed January 17,2013 Currently awaiting connection to the 120-150 treatments stem and startup EW-14B NA 205 170-200 6 0.010 Stainless steel NA D Well Installed January 1B,2013 Currently awaiting connection to the treatments stem and startup EW-15A NA 155 70-100 6 0.010 Stainless steel NA S,I Well installed January 17,2013 Currently awaiting connection to the 120-150 treatments stem and startup EW-15B NA 205 170-200 6 0.010 Stainless steel NA D Well installed January 19,2013 Currently awaiting connection to the treatments stem and startup EW-17 NA 45 1040 6 0.010 Stainless steel NA WT Well Installed January 29,2013 Currently awaiting connection to the treatments stem and startup Notes Treatment system optimization began April 19.2011. WT-Water Table,S-Shallow,I-Intermediate;D-Deep --not applicable/not available PVC-polyvinyl chloride Water Table zone is 0-50 feet bgs Shallow zone is 50-100 feet bgs Intermediate zone is 100-150 feet bgs Deep zone is 150-250 feet bgs NA-Not available(well awaitng survey and pump installation) Table 1-EW delails.ds ARCADIS Page 1 of 1