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TABLE 6
<br /> Well Construction Details
<br /> Former ARCO Service Station No. 2168
<br /> 441 W Charter Way, Stockton, CA
<br /> Elevation Boring Borehole Casing Screened Filter Pack Cement Seal
<br /> Well I.D. Construction (TOC feet Depth Diameter Diameter Casing Slot Size Interval Zone Interval feet Bentonite Seal Interval
<br /> Date above MSL) (feet (inches) (inches) Material (inches) (feet bs) bgs) (feet bgs) Interval Comments
<br /> g
<br /> bgs) (feet b9s)
<br /> Extraction Wells
<br /> EW-1 11/3/2005 NA 41 10 2 PVC 0.020 15-25 A 12-26 10-12,26-33 2-10
<br /> EW-2 11/3/2005 NA 39 10 2 PVC 0.020 15-25 A 12-26 10-12,26-33 2-10
<br /> EW-3 11/4/2005 NA 39 10 2 PVC 0.020 15-25 A 12-26 10-12,26-33 2-10
<br /> EW-4 11/11/2005 NA 37 10 2 PVC 0.020 15-25 A 12-26 10-12,26-29 2-10
<br /> EW-5 11/4/2005 NA 39 10 2 PVC 0.020 15-25 A 12-26 10-12,26-30 2-10
<br /> EW-6 11/10/2005 NA 37 10 2 PVC 0.020 15-25 A 12-26 10-12,26-30 2-10
<br /> EW-7 11/10/2005 NA 37 10 2 PVC 0.020 15-25 A 12-26 10-12,26-30 2-10
<br /> EW-8 11/8/2005 NA 39 10 2 PVC 0.020 15-26 A 12-26 10-12,26-31 2-10
<br /> EW-9 11/11/2005 NA 37 10 2 PVC 0.020 15-25 A 12-26 10-12,26-30.5 2-10
<br /> EW-10 11/14/2005 NA 37 10 2 PVC 0.020 15-25 A 12-26 10-12,26-31 2-10
<br /> EW-11 11/7/2005 NA 37 10 2 PVC 0.020 15-25 A 12-26 10-12,26-30 2-10
<br /> EW-12 11/7/2005 NA 37 10 2 PVC 0.020 15-25 A 12-26 10-12,26-30 2-10
<br /> EW-13 11/8/2005 NA 37 10 2 PVC 0.020 15-25 A 12-26 10-12,26-30 2-10
<br /> EW-14 11/9/2005 NA 37 10 2 PVC 0.020 15-25 A 12-26 10-12,26-31 2-10
<br /> EW-15 11/15/2005 NA 37 10 2 PVC 0.020 15-25 A 12-26 10-12,26-31 2-10
<br /> EW-16 11/15/2005 NA 39 10 2 PVC 0.020 12-25 A 12-26 10-12,26-34 2-10
<br /> EW-17 1 11/15/2005 1 NA 1 41 1 10 1 2 1 PVC 1 0.020 1 12-25 1 A 1 12-26 1 10-12,26-35 2-10
<br /> Sparge Wells
<br /> SPA 11/3/2005 NA 41 10 1 PVC 0.020 36-38 A 12-26,33-39 10-12,26-33,39-41 2-10
<br /> SP-2 11/3/2005 NA 39 10 1 PVC 0.020 36-38 A 12-26,33-39 10-12,26-33 2-10
<br /> SP-3 11/4/2005 NA 39 10 1 PVC 0.020 36-38 A 12-26,33-39 10-12,26-33 2-10
<br /> SP-4 11/11/2005 NA 37 10 1 PVC 0.020 31-33 A 12-26,29-33.5 10-12,26-29,33.5-37 2-10
<br /> SP-5 11/4/2005 NA 39 10 1 PVC 0.020 31-33 A 12-26,30-33.5 10-12,26-30,33.5-39 2-10
<br /> SP-6 11/10/2005 NA 37 10 1 PVC 0.020 31-33 A 12-26,30-34 10-12,26-30,34-37 2-10
<br /> SP-7 11/10/2005 NA 37 10 1 PVC 0.020 31-33 A 12-26,30-34 10-12,26-30,3437 2-10
<br /> SP-8 11/8/2005 NA 39 10 1 PVC 0.020 33-35 A 15-25,31-36 10-12,26-31,36-39 2-10
<br /> SP-9 11/11/2005 NA 37 10 1 PVC 0.020 32.5-34.5 A 12-26,30.5-35 10-12,26-30.5,35-37 2-10
<br /> SP-10 11/14/2005 NA 37 10 1 PVC 0.020 32-34 A 12-26,31-35 10-12,26-31,35-37 2-10
<br /> SP-11 11/7/2005 NA 37 10 1 PVC 0.020 31-33 A 12-26,30-33.5 10-12,26-30,33.5-37 2-10
<br /> SPA 11/7/2005 NA 37 10 1 PVC 0.020 31-33 A 12-26,30-34 10-12,26-30,3437 2-10
<br /> SP-13 11/8/2005 NA 37 10 1 PVC 0.020 31-33 A 12-26,30-34 10-12,26-30,34-37 2-10
<br /> SP-14 1 11/9/2005 1 NA 1 37 1 10 1 1 PVC 0.020 1 33-35 1 A 1 12-26,31-35.5 1 1D-12,26-31,35.5-37 2-10
<br /> 02168 3006 Tables Page 2 of 3 SECOR
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