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V � Table 1 Soil Boring and Well Construction Details 7-Eleven Store#20632 4627 DaVinci Drive Stockton, California Total Well Screen Screen Well Drill Depth Diameter Top Bottom Length Comments I.D. Date (feet bgs) (inches) (feet bgs) (feet bgs) (feet) Soil Borings GP-1 02/21/97 17 2 — Geoprobe Boring GP-2 02/21/97 17 2 -- -- -- Geoprobe Boring GP-3 02/21/97 17 2 -- -- -- Geoprobe Boring GP-4 02/21/97 17 2 -- -- -- Geoprobe Boring GP-5 02/21/97 17 2 -- -- -- Geoprobe Boring GP-6 02/21/97 17 2 -- -- -- Geoprobe Boring GP-7 02/21/97 16 2 -- -- -- Geoprobe Boring GP-8 02/21/97 16 2 -- -- -- Geoprobe Boring GP-9 02/21/97 16 2 -- -- -- Geoprobe Boring GP-10 02/21/97 16 2 -- -- -- Geoprobe Boring S13-1 04/08/02 30 8 -- -- -- Soil Boring SB-1B 01/31/05 8 2 -- -- -- Off Site Hand Auger SB-1C 01/31/05 8 2 -- -- -- Off Site Hand Auger SB-2A 01/31/05 8 2 -- -- -- Off Site Hand Auger SB-2B 01/31/05 8 2 -- -- -- Off Site Hand Auger SB-2C 01/31/05 8 2 -- -- -- Off Site Hand Auger SB-3A 01/31/05 8 2 -- -- -- Off Site Hand Auger SB-3B 01/31/05 8 2 -- -- -- Off Site Hand Auger SB-3C 01/31/05 8 2 -- -- -- Off Site Hand Auger Monitoring Wells MW-1 09/22/97 15 2 5 15 10 Destroyed 3/28/14-drilled out MW-2 09/22/97 15 2 5 15 10 Destroyed 3/26/14-pressure grout MW-3 09/22/97 15 2 5 15 10 Destroyed 3/28/14-drilled out MW-4 09/22/97 20 2 5 20 15 Destroyed 8/14/98 MW-4R 04/08/02 15 4 5 15 10 Destroyed 3/27/14-removed casing,grouted MW-5 12/31/98 15 2 5 15 10 Destroyed 3/26/14-drilled out MW-6 04/08/02 15 2 5 15 10 Destroyed 3/27/14-drilled out MW-7 04/09/02 15 2 5 15 10 Destroyed 3/26/14-drilled out Remediation Wells SPV-1 04/09/02 8 2 3 8 5 Destroyed 3/27/14-drilled out 15 2 10 15 5 SPV-2 04/09/02 8 2 3 8 5 Destroyed 3/26/14-pressure grout 15 2 10 15 5 Explanation Wells are of poly-vinyl-chloride(PVC)construction bgs=Below ground surface -=Not Applicable 20632 Current Well Boring Sum.xls Page 1 of 1