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TABLE 1 Soil Boring and Well Construction Details Stockton Charter Way Commingled Plume 440, 441, and 508 West Charter Way, 1426 and 1444 South Lincoln Street, Stockton, CA TOC Borehole Casing Bentonite Seal Cement Seal Water- Installation Destruction Total Depth Casing Slot Size Screened Interval Filter Pack Interval Location ID Elevation Diameter Diameter Interval Interval Bearing Comments Date Date (feet) (feet bgs) (inches) (inches) Material (inches) (feet bgs) (feet bgs) (feet bgs) (feet bgs) Zone C5 05/03/07 44 2.25 0-44 C6 05/03/07 46 2.25 0-46 C7 05/03/07 48 2.25 0-48 C8 05/02/07 44.5 2.25 0-44.5 C9 05/01/07 44 2.25 0-44 C10 05/01/07 44 2.25 0-44 C11 04/30/07 46 2.25 0-46 CT-8-130 06/24/09 130 1 8 1 - 0-130 Monitoring Wells(SLMW) SLMW-1 02/06/96 07/09/15 11.27 46.5 - 2 Sch.40 PVC 0.020 26-46 24.5-46.5 23-24.5 0-23 X SLMW-1A 07/13/07 - 11.38 56 8 2 Sch.40 PVC 0.010 43-55 42-55 40-42,55-56 0-40 B SLMW-2A 07/16/07 11.84 56.5 8 2 Sch.40 PVC 0.010 40-50 39-51 37-39,51-56.5 0-37 B SLMW-3A 07/12/07 11.51 52 8 2 Sch.40 PVC 0.010 44-50 43-50 41-43 0-41 B SLMW-4A 07/11/07 - 11.41 47 8 2 Sch.40 PVC 0.010 37-45 36-45 34-36 0-34 B SLMW-7S 10/27/97 07/09/15 11.33 90 - 2 Sch.40 PVC - 55-63 53.5-65 51-53.5,65-67,75-77 0-51,67-75 X SLMW-7D 10/27/97 07/09/15 11.34 90 - 2 Sch.40 PVC - 80-85 77-90 51-53.5,65-67,75-77 0-51,67-75 C SLMW-8-87 06/23/09 - 11.18 87 8 2 Sch.40 PVC 0.01 77-87 75-87 73-75 0-73 C SLMW-9-120 06/25/09 11.48 120 8 2 Sch.40 PVC 0.01 110-120 108-1 20 106-108 0-106 D SLMW-10C 06/09/15 11.56 85 8.25 4 Sch.40 PVC 0.010 74.5-85 73-85 71-73 0-71 C SLMW-10D 06/05/15 11.80 120 8.25 4 Sch.40 PVC 0.010 104-114.3 102-115 100-102 0-100 D SLMW-11D 06/12/15 11.08 120 8.25 4 Sch.40 PVC 0.010 106-116.4 103.5-117 101-103.5;117-120 0-101.5 D SLMW-12A 05/27/15 11.36 27.5 8.25 4 Sch.40 PVC 0.010 12-27.5 10-27.5 8-10 0-8 A SLMW-13B 1 03/28/17 12.35 1 65.0 1 8 1 2 1 Sch.40 PVC 0.010 1 55-65 1 53-65 1 51-53 1 1-51 1 B Vapor Extraction Well(SLVE) SLVE-1 02/06/96 11.26 38.5 4 Sch.40 PVC 0.020 15-35 13-37 12-13 0-12 A SLVE-2 01/25/17 11.52 16.0 4 Sch.40 PVC 0.020 11-16 9-16 7-9 1-7 A Air Sparge Wells(AS) SLAS-1S 02/02/17 11.04 23 8 2 Sch.40 PVC 0.010 21-23 19-23 16-19 1-16 A SLAS-1 D 02/02/17 11.02 34 8 2 Sch.40 PVC 0.010 32-34 30-34 16-19&23-30 1-16 A SLAS-2 01/25/17 11.44 27.5 8 2 Sch.40 PVC 0.010 25.5-27.5 23.5-27.5 21.5-23.5 1-21.5 A SLAS-3A 01/30/17 11.40 28 8 2 Sch.40 PVC 0.010 26-28 24-28 22-24 1-22 A SLAS-31D 01/30/17 11.37 37 8 2 Sch.40 PVC 0.010 35-37 33-37 22-24&28-33 1-22 A Cone Penetrometer Test(CPT) CPT-1 12/01/97 - - - - - - - - - No bore log could be found CPT-2 12/01/97 No bore log could be found CPT-3 12/01/97 - - - No bore log could be found CPT-M4 04/09/08 116.634 1.75 0-116.634 CPT-M5 04/07/08 124.836 1.75 0-124.836 CPT-M6 04/07/08 118.930 1.75 0-118.930 CPT-M7 04/04/08 114.009 1.75 0-114.009 CPT-M8 04/08/08 83.005 1.75 0-83.005 CPT-M9 04/04/08 125.000 1.75 0-125.000 CPT-M10 04/03/08 125.328 1.75 0-125.328 CPT-M 11 04/08/08 1.75 0-125.164 Stockton Charter Way Commingled Plume Soil Boring and Well Construction Details.xls Page 5 of 8 Stantec