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Table 1 <br /> Summary of Soil Borings <br /> ARCO Service Station No 6100 <br /> 25775 South Patterson Pass Road <br /> Tracy, California <br /> Boring Date Total Boring Drilling Drilling Groundwater Disposition <br /> Number Drilled Depth Diameter Method Contractor Encountered of Boring <br /> (feet) (inches) (feet) <br /> VW-18 06/26/95 80 8 Hollow-stem auger Woodward Drilling NA Vapor Extraction Weil VW-18 <br /> VW-19 07/05/95 93 8 Hollow-stem auger All Terrain Drilling NA Vapor Extraction Well VW-19 <br /> VW-20 07/05/95 83 8 Hollow-stem auger All Terrain Drilling NA Vapor Extraction Well VW-20 <br /> B-32 08/24/00 202 10 Air Rotary Water Development Corp NA Monitoring Well MW-1 <br /> B-33 09/04/01 135 55 Mud Rotary Western Strata Exploration NA Grouted to Surface <br /> B-34 08/31/01 140 55 Mud Rotary Western Strata Exploration NA Grouted to Surface <br /> B-35 08/29/01 135 5 5 Mud Rotary Western Strata Exploration NA Grouted to Surface <br /> B-36 09/05/01 140 55 Mud Rotary Western Strata Exploration NA Grouted to Surface <br /> B-37 09/06/01 140 55 Mud Rotary Western Strata Exploration NA Grouted to Surface <br /> B-38 09/07/01 135 5 5 Mud Rotary Western Strata Exploration NA Grouted to Surface <br /> A=not applicable <br /> soil-boring-summary As Page 2 of 2 <br />