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TABLE 1 PROPOSED BORING OBJECTIVES US CAN-WELTY ROAD Vernalis,San Joaquin County,California Target Maximum Sample Sample Depth' Depthr HHRA General Proposed Borings Media (feet bgs) (feet bgs) Soil Sample3 Minerals A to delineate affected soil and groundwater around MW-2 and GMX-8. soil/gw/FFP4 5-35 35 Yes No B to delineate affected soil and groundwater around MW-2 and GMX-8. soil/gw/FFe 5-35 35 Yes No C to delineate affected soil and groundwater around MW-2 and GMX-8. soil/gw/FFP4 5-35 35 Yes No D to delineate affected soil and groundwater up gradient of MW-2 and GMX-8. soil/gw/FFP4 5-35 35 Yes No E to delineate affected soil and groundwater up gradient of MW-2 and GMX-8. soil/gw/FFP4 5-35 35 Yes Yes F to explore source of affected soil and groundwater along the TAOC pipeline up gradient of SB-17. soil/gw/FFP4 5-35 35 Yes No G to explore source of affected soil and groundwater along the TAOC pipeline up gradient of SB-17. soil/gw/FFP4 5-35 35 Yes No H to delineate affected soil and groundwater down gradient of SB-17. soil/gw/FFP4 20-35 35 Yes No I to delineate affected soil and groundwater down gradient of SB-17. soil/gw/FFP4 20-35 35 Yes Yes J to explore source of affected soil and groundwater along the TAOC pipeline up gradient of SB-17. soil/gw/FFP4 5-35 35 Yes No K to delineate affected soil and groundwater cross gradient of MW-2 and GMX- 8. soil/gw/FFP4 5-35 35 Yes No Abbreviations bgs=Below ground surface FFP=Fuel Fingerprint gw=Groundwater HHRA=Human Health Risk Assessment Notes: 1. Target sample depth based on previously identified affected areas. 2. Maximum depth explored may vary based on field observations. 3. Soil samples for HHRA to be collected from 0 to 10 feet bgs. 4.FFP may be collected if affected soil or groundwater encountered gm=z�_l -� _�U _ Page l of I rram sr rs ro sm�r a