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TABLE 1 <br /> SUMMARY OF SOIL BORINGS <br /> Unocal Service Station No 6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> Soil Boring Date Total Boring Drilling Drilling Ground Water Environmental Reference Disposition of Boring <br /> Number Drilled Depth Diameter Method Contractor Encountered Consultant <br /> B-1 01/31/90 551 10° Hollow-stem auger Spectrum Drilling 501 Applied GeoSystems 38032-3 Monitoring Well MW-1 <br /> B-2 02/01/90 551 10E1 Hollow-stem auger Spectrum Drilling 501 Applied GeoSystems 38032-3 Monitoring Bell MU-2 <br /> B-3 02/02/90 551 1011 Hollow-stem auger Spectrum Drilling 501 Applied GeoSystems 38032-3 Monitoring welt MW-3 <br /> B-4 02/05/90 551 1011 Hottow-stem auger Spectrum Drilling 51 51 Applied GeoSystems 38032-3 Monitoring Well MW-4 <br /> B-5 02/06/90 551 1011 Hollow-stem auger Spectrum Drilling 531 Applied GeoSystems 38032-3 Monitoring Welt MW-5 <br /> 8-6 03/02/92 49 51 10 2511 Hollow-stem auger Woodward Drilling NA RESNA Industries 38032-7 Vapor-ExtractionWeMN-1 <br /> B-7 03/03/92 691 8 2511 Hollow-stem auger Woodward Drilling 611 RESNA Industries 38032-7 Monitoring Welt MW-6 <br /> B-8 03/03/92 691 8 2511 Hollow-stem auger Woodward Drilling 55 51 RESNA Industries 38032-7 Monitoring Well MW-7 <br /> B-9 03/04/92 101 8 2511 Hollow-stem auger Woodward Drilling NA RESNA Industries 38032-7 Backfilled <br /> B-10 03/04/92 691 8 2511 Hollow-stem auger Woodward Drilling 55 751 RESNA Industries 38032-7 Monitoring Well MW-8 <br /> B-11 03/09/92 50 51 10 2511 Hollow-stem auger Westex Drilling Co NA RESNA Industries 38032-7 Vapor-Extraction Wet IVW-2 <br /> 9-12 03/09/92 50 51 10 2511 Hollow-stem auger Westex Drilling Co NA RESNA Industries 38032-7 Vapor-Extraction Wet(VW-3 <br /> B-13 03/10/92 50 51 10 2511 Hollow-stem auger Westex Drilling Co NA RESNA Industries 38032-7 Vapor-Extraction Wet tVW-4 <br /> 8-14 08/10/92 701 811 Hotlow-stem auger Westex Drilling Co NA RESNA Industries 38032-8 Monitoring Wet[ MW-9 <br /> B-15 08/13/92 701 811 Hollow-stem auger Westex Drilling Co 571 RESNA Industries 38032-8 Monitoring Well MW-10 <br /> 8-16 03/12-13/92 721 811 HotLow-stem auger Westex Drilling Co 571 RESNA Industries 38032-8 Monitoring Well MW-11 <br /> 9-17 08/11-12/92 721 811 Hotlow-stem auger Westex Drilling Co 571 RESNA Industries 38032-8 Monitoring Well MW-12 <br /> B-18 08/10-11/92 72 51 1211 Hollow-stem auger Westex Drilling Co 571 RESNA Industries 38032-8 Pump Test Wet PTW-1 <br /> B-19 08/24/92 721 8 511 Hollow-stem auger Westex Drilling Co 571 RESNA Industries 38032-8 Monitoring Well MW-13 <br /> Depth of boring and depth to water measured in feet below ground surface <br /> NA = Not applicable <br />