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TABLE 1 Well Construction and Destruction Details Former 76(Former BP)Service Station No. 11195 16500 Harlan Rd. Lathrop,CA Borehole Casing Screened Filter Pack Bentonite Seal Cement Seal Material (Inches) Well I.D. Construction TOC Elevation Boring Depth Diameter Diameter Casing Slot Size Interval Interval Interval Interval Location Well Destruction Methods Date (feet above msl) (feet bgs) (inches) (inches) (feet bgs) (feet bgs) (feet bgs) (feet bgs) Remediation Wells SP-1 12/09/02 NA 36.0 8 0.75 PVC NA NA 32-36 30-32 1-30 On Site Overdrill SP-2 12/09/02 NA 35.0 8 0.75 PVC NA NA 31-35 29-31 1-29 On Site Overdrill SP-3 12/09/02 NA 37.0 8 0.75 PVC NA NA 33-37 30-33 1-30 On Site Overdrill SP-4 12/09/02 NA 30.0 8 0.75 PVC NA NA 26-30 24-26 1-24 On Site Overdrill SP-5 12/10/02 NA 30.0 8 0.75 PVC NA NA 26-30 24-26 1-24 On Site Pressure Grout SP-6 12/12/02 NA 32.0 8 0.75 PVC NA NA 28-32 26-28 2.5-26 On Site Overdrill SP-7 12/11/02 NA 32.0 8 0.75 PVC NA NA 28-32 26-28 2-26 On Site Overdrill SP-8 12/11/02 NA 32.0 8 0.75 PVC NA NA 28-32 26-28 1-26 On Site Overdrill SP-9 12/11/02 NA 32.0 8 0.75 PVC NA NA 2332 27-29 1.5-27 On Site Overdrill SP-10 12/11/02 NA 32.0 8 0.75 PVC NA NA 28-32 26-28 1-26 On Site Pressure Grout SP-11 12/11/02 NA 33.0 8 0.75 PVC NA NA 29-33 27-29 1-27 On Site Pressure Grout SP-12 12/13/02 NA 32.0 8 0.75 PVC NA NA 28-32 26-28 1.5-26 On Site Pressure Grout SP-13 12/12/02 NA 32.0 8 0.75 PVC NA NA 28-32 26-28 1.5-26 On Site Overdrill SP-14 12/12/02 NA 32.0 8 0.75 PVC NA NA 28-32 26-28 1.5-26 On Site Pressure Grout SP-15 12/12102 NA 32.0 8 0.75 PVC NA NA 26.5-32 24-26.5 1.5-24 On Site Overdrill SP-16 06/26/08 NA 25.0 8 0.75 PVC NA NA 21-25 19-21 1-19 Off Site Overdrill SP-17 06/26/08 NA 25.0 8 0.75 PVC NA NA 21-25 19-21 1-19 Off Site Overdrill SP-18 06/26/08 NA 25.0 8 0.75 PVC NA NA 21-25 19-21 1-19 Off Site Overdrill SP-19 06/25/08 NA 24.5 8 0.75 PVC NA NA 20.5-25 18.5-20.5 1-18.5 Off Site Overdrill SP-20 06126/08 NA 25.0 8 0.75 PVC NA NA 21-25 1321 1-19 Off Site Overdrill SP-21 06/26/08 NA 25.0 8 0.75 PVC NA NA 21-25 19-21 1-19 Off Site Overdrill SP-22 06124/08 NA 25.0 8 0.75 PVC NA NA 21-25 19-21 0-19 Off Site Overdrill SP-23 06/25/08 NA 25.5 8 0.75 PVC NA NA 21-25 19-21 1-19 Off Site Overdrill SP-24 06/25/08 NA 24.5 8 0.75 PVC NA NA 20.5-25 18.5-20.5 1-18.5 Off Site Overdrill SP-25 06/24/08 NA 30.0 8 0.75 PVC NA NA 21-25 19-21 0-19 Off Site Overdrill SP-26 06/24/08 NA 25.0 8 0.75 PVC NA NA 21-25 19-21 0-19 Off Site Overdrill SP-27 06/25/08 NA 25.0 8 0.75 PVC NA NA 21-25 19-21 0-19 Off Site Overdrill Notes: TOC=top of casing Richland Crossroads msl=mean sea level Holiday Inn bgs=below ground surface Lathrop Business Park PVC=polyvinyl chloride On site-Phillips 66 NA=Not available Off site -Phillips 66 Elevations are in US survey feet,Vertical Datum is NGVD29 Well Construction and Destruction Details 2 of 2 ATC Project Number 52.75118.1751