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TABLE 1 <br /> PROPOSED BORING OBJECTIVES <br /> TRACY BYRON ROAD <br /> Tracy,San Joaquin County, California <br /> Target Proposed Water <br /> Boring Area of Sample Sampler Depth RA Quality <br /> ID Investigation/Purpose Media (feet b s) (feet bgs) Sample Testing <br /> SB-42 On site at APN 238-050-01, to define the extent of soil and groundwater south and <br /> up gradient of SB-19. s/gam' 20+ 35 Yes No <br /> SB-43 On site at APN 238-050-09, to define the extent of soil and groundwater south and <br /> up gradient of SB-23. s/gam 20+ 35 Yes Yes <br /> SB-45 On site at APN 238-050-22,to define the extent of soil and groundwater southeast and <br /> up gradient of SB-33. s/gam 20+ 35 Yes No <br /> Contingency 1 Define lateral extent up gradient within APN 238-050-01; SB-42. s/gw TBD TBD Yes No <br /> Contingency 2 Define lateral extent up gradient within APN 238-050-09; SB-43. s/gw TBD TBD Yes No <br /> Contingency 3 Define lateral extent up gradient within APN 238-050-22; S13-45. s/gw rTBD TBD Yes No <br /> Abbreviations: <br /> APN=Assessor's parcel number <br /> bgs=Below ground surface <br /> ID=Identification <br /> OVP=Old Valley Pipeline <br /> RA=Risk Assessment <br /> s/gw=Soil and groundwater samples <br /> TAOC=Tidewater Associated Oil Company Pipeline • <br /> TBD=To Be Determined <br /> Notes: <br /> 1. Target soil-sample depth based on previously identified zone of contamination. <br /> 2. Maximum depth explored may vary in field. <br /> 3. Soil samples for RA to be collected from 0 to 10 feet bgs. <br /> Page 1 of 1 From Science to Solutions <br />