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Remediation System Well Abandonment Work Plan JACOBS® <br /> Table 1. Remediation Well Completion Details <br /> Las Vinas Dehydrator Station, San Joaquin County, California <br /> Top of <br /> Date Aban- Ground PVC Total Bentonite Drilling <br /> Piezo- doned/Date Surface Casing Horizontal Survey Well Seal Depth Dia- Well Dia- Casing <br /> meters/ Date Proposed to Elevation Elevation Coordinates Depth Depth Screened Material meter meter Material/ <br /> Wells Installed be Abandoned (ft AMSL) (ft AMSL) Latitude(N) Longitude(W) (ft bgs) (ft bgs) (ft bgs) Screened (inches) (inches) Slot Size <br /> SV-2 September TBD NA NA 38.1563560 -121.3809430 10 3 to 4, 4 to 5, Poorly 3 1/4 Teflon Tubing <br /> 2002 5 to 9 9 to 10 graded <br /> sand <br /> Clay <br /> SV-3 September TBD NA NA 38.1563507 -121.3809919 10 3 to 4, 4 to 5, Poorly 3 1/4 Teflon Tubing <br /> 2002 5 to 9 9 to 10 graded <br /> sand <br /> Clay <br /> SV-4 December Summer 2020 NA NA -- -- 10 4.5,9.5, 4.5,9.5, Silty sand 3.25 1/4 Teflon Tubing <br /> 2010 14.5 14.5 to Sandy /Porous Type <br /> silt 316 Stainless <br /> Steel <br /> SV-5 September Summer 2020 NA NA 38.1566876 -121.3811698 10 3 to 4, 4.25 to Sand with 3.25 1/2 Sch.40 PVC/ <br /> 2014 5 to 9 4.75,9.25 silt 0.011, <br /> to 9.75 Sandy silt <br /> SV-6 September May 2016 NA NA 38.1566079 -121.3811106 10 3 to 4, 4.25 to Silty sand 3.25 1/2 Sch.40 PVC/ <br /> 2014 5 to 9 4.75,9.25 Sand 0.011, <br /> to 9.75 <br /> SV-7 September Summer 2020 NA NA 38.1566645 -121.3810687 10 3 to 4, 4.25 to Silty sand 3.25 1/2 Sch.40 PVC/ <br /> 2014 5 to 9 4.75,9.25 0.011, <br /> to 9.75 <br /> SV-8 September Summer 2020 NA NA 38.1566085 -121.3812517 10 3 to 4, 4.25 to Silty sand 3.25 1/2 Sch.40 PVC/ <br /> 2014 5 to 9 4.75,9.25 0.011, <br /> to 9.75 <br /> SVE-1 September Summer 2020 NA NA 38.1567797 -121.3815187 25 2 to 4 5 to 25 Silty sand, 10 4 Sch.40 PVC/ <br /> 2014 sandy silt 0.011, <br /> SVE-2 September Summer 2020 NA NA 38.1566933 -121.3812779 25 2 to 4 5 to 25 Silty sand, 10 4 Sch.40 PVC/ <br /> 2014 sandy silt 0.011, <br /> SVE-3 August Summer 2020 NA NA 38.1566263 -121.3811205 20.5 7 to 9 10 to 20 Sandy silty, 10 4 Sch.40 PVC/ <br /> 2014- silty sand 0.011, <br /> September <br /> 2014 <br /> SVE-4 September Summer 2020 NA NA 38.1567415 -121.3809585 25 6 to 8 10 to 25 Sandy silt 10 4 Sch.40 PVC/ <br /> 2014 0.011, <br /> B11204191849AKT Page 2 of 4 <br />