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i TABLE 1 Soil Boring and Well Construction Details ARCO Service Station No. 2186 3212 North California Street, Stockton,CA Construction Elevation Boring Depth Borehole Casing Casing Slot Size Screened Filter Pack Bentonite Seal Cement Seal I Well I.D. Date (TOC feet) (feet bgs) Diameter Diameter Material (inches) Interval Interval Interval Grout Interval Comments (inches) (Inches) (feet bgs) (feet bgs) (feet bgs) (feet bgs) Soil Borings(B) B-2 8128/1995 15.0 25 8 - - - - - - 0-25 B-6 9/611995 15.0 25 8 - - - - - - 0-25 BH-3 4114/2004 - 120.5 8 - - - -- - 0-120.5 CPT-1 8123/1999 - 83 2 - - - - - - 0.5.83 CPT-2 8123,24!1999 - 81.5 2 - - - - 0.5-81.5 CPT-3 8124,26/1999 - 81.5 2 - - - - - - 05-81.5 Monitoring Wells(MW) B-11MW-1 8129/1995 14.62 75.6 10 4 PVC Sch-40 0.020 45.6-74.7 43-75.6 40-03 0.40 Destroyed 4128/09 MW-1R 4124&2712009 14.50 58 8 2 PVC Sch.40 0.020 38-58 36-58 3436 0-34 MW-1 D 4/24&27/2009 14.29 85 15's 2 PVC Sch.40 0.020 70-85 68-85 65-68 0-65 8 41MW-2 8!2911995 15.50 75.5 10 4 PVC Sch.40 0.020 55.5-74.5 53-75.5 48-53 0-48 B-51MW-3 8129/1995 14.53 75 10 4 PVC Sch,40 0.020 55.3-74.3 52.8-75 47.5-52.8 0.47.5 Destroyed 4128/09 MW-313 4/22/2009 14.54 58 8 2 PVC Sch.40 0.020 38-58 36-58 34-360-34 B-9/MW-4 10/30/1997 13.83 75 10 4 PVC Sch.40 0.020 45-65 43-65 41-43 0-41 MW-5 8113/2001 12.76 81 8 2 PVC Sch.40 0.020 60-80 513-80 54-58 0-54 MW-6 8/13/2001 13.80 81 8 2 PVC Sch.40 0.020 60-80 58-80 55-58 0-55 MW-7 8/13/2001 13.96 81 8 2 PVC Sch.40 0.020 60-80 58-80 55-58 0-55 BH-41MW-8 4/16/2004 14.28 1 135 1 8 1 2 1 PVC Sch.40 1 0.024 1 129-134 1 126.134 1 120-126 1 0.5-120 Vapor Extraction Wells(VW) M�4 8-31VW-1(A) 8/29/1995 14.60 62.6 10 2 PVC Sch.40 0.020 22.2-36.3 21-38 18-21 'Wo'-18 B-3NW-1(B) 8/29/1995 14.59 62.6 10 2 PVC Sch,40 0.020 42.6-61.6 41-62.6 38-41... ;r��L 0-18 B-7/VW-2(A) 9f7/1995 14,67 62.2 10 2 PVC Sch.40 0.020 22.1-30 21.38 -18-21 0-18 B-7NW-2(13) 917/1995 14.89 62.2 10 2 PVC Sch.40 0.020 42.5-61.5 41-62.2 37.7-40.7 0-17 B-8NW-3(A) 9f7/1995 13.99 61,5 10 2 PVC Sch.40 0.020 22-36 20.8-37.8 17.&20.8 0-16 B-8NW-3(8) 9!7/1995 13.98 61.5 10 2 PVC Sch.40 0.020 41.8-60.8 40.8-61.3 37.8-00.8 0-16 BH-1/VW-4 1 4/1312004 1 14.71 1 41 1 10 4 PVC Sch.40 1 0.020 1 25-40 23-40 1 20-23 0-20 Air Sparge Wells(AW) 131-1-21AW-1 1 4/13/2004 NA 66 8 2 PVC 0.020 60-65 58-65 55-58 0-55 Soil Vapor Probe(VP) VP-1 1125108 - 6 5 114 TT and SS 14 N 5.25-5.75 5-6 3-5 0-3 Destroyed 4121109 VP-2 1/25/08 - 6 5 114 TT and SS 14 N 5;25-5.75 5-6 3.5 0-3 Destroyed 4121109 VP-3 1125108 - 6 5 114 TT and SS 14 N5.25-5.75 5-6 3-5 0-3 Destroyed 4121109 tes7 bgs=below ground surface TT and SS=Teflon Tubing and Stainless Steel TOC=top of casing Filter Pack is with#3 sand PVC=polyvinyl chloride -=Not available Sch.=Schedule Elevations are in US survey feet p=micron Borings B-2 and B-6 were drilled in a 45-degree angle 2186 Soil Boring and-Well Construction Details.As Page 1 of 1 Stantec