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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 /> Drilling Groundwater Disposition <br /> Boring Date Total Boring Drilling Contractor Encountered of Boring <br /> Number Drilled Depth Diameter Method (feet) <br /> (feet) (inches) <br /> Hollow-stem auger Wayne Drilling NA Grouted to Surface • <br /> B-1 06/06/90 56 8 g NA Grouted to Surface <br /> B-2 06/07/90 41 8 Hollow-stem auger Wayne Drilling Grouted to Surface <br /> Hollow-stem auger Wayne Drilling NA <br /> B-3 06/07/90 26 8 g Grouted to Surface <br /> B-4 06/08/90 31 8 Hollow-stem auger Wayne Drilling Grouted to Surface <br /> B-5 06/08/90 31 8 Hollow-stem auger Wayne Drilling NNA A Grouted to Surface <br /> B-6 10/07/91 76 8 Hollow-stem auger JCON Exploration NA Grouted to Surface <br /> B-7 10/11/91 76.5 10 Hollow-stem auger JCON Exploration NA e <br /> Vapor Extraction Well <br /> B-8 10/08/91 46 8 Hollow-stem auger JCON Exploration NA p <br /> B-9 10/09/91 116 8 Hollow-stem auger JCON Exploration NA Vapor Extraction Well VW-4 <br /> B-10 10/09/91 61 8 Hollow-stem auger JCON Exploration NA Vapor Extraction Well VW-2 <br /> B-11 10/10/91 61 8 Hollow-stem auger JCON Exploration NA Vapor Extraction Well VW-3 <br /> B-12 11/20/91 55.5 8 Hollow-stem auger JCON Exploration NA Vapor Extraced tion <br /> SurfacWell e 5 <br /> B-13 11/20/91 35.5 8 Hollow-stem auger JCON Exploration NA Va or Extraction Well <br /> B-14 11/21/91 80.5 8 Hollow-stem auger JCON Exploration NA Vapor Extraction Well VW-6 <br /> B-15 11/21/91 45.5 8 Hollow-stem auger JCON Exploration NA p GroutedoSurface <br /> B-16 11/22/91 35.5 8 Hollow-stem auger ICON Exploration NA Va orExtractionWell <br /> B-17 11/25/91 88.5 8 Hollow-stem auger JCON Exploration NA Vapor Extraction Well VW-9 <br /> B-18 11/26/91 69.5 8 Hollow-stem auger JCON Exploration NA p Grouted to Surface <br /> B-19 11/27/91 45 8 Hollow-stem auger JCON Exploration NA Va or Extraction Well VW-10 <br /> B-20 06/01/92 50 8 Hollow-stem auger <br /> Woodward Drilling NA p actionWeII_ <br /> -11 <br /> B-21 06/01/92 45.5 8 Hollow-stem auger Woodward Drilling NA Vapor <br /> Extraction Well VW 12 <br /> B-22 06/02/92 26.5 10 Hollow-stem auger Woodward Drilling NA Vapor <br /> B-23 06/02/92 76 8 Hollow-stem auger Woodward Drilling NA Vapor Extraction Well VW-13 <br /> Vapor Extraction Well VW-14 <br /> B-24 06/03/92 31.5 8 Hollow-stem auger Woodward Drilling NA p _ <br /> Vapor B-25 06/03/92 90.5 8 Hollow-stem auger Woodward Drilling NA Vapor <br /> Extraction Well VW-17 <br /> -15 <br /> B-26 12/22/92 110 10 Hollow-stem auger Westex Drilling NA P <br /> B-27 12/15/92 40 10 Hollow-stem auger JCON Exploration NA VaporG Extrauted ction <br /> Well VW 16 <br /> B-28 12/16/92 71 8 Hollow-stem auger JCON Exploration NA <br /> Page 1 of 2 <br /> soil-boring-summary <br />