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Table 1 <br /> Port of Stockton Fuel Distribution Terminals <br /> Additional Assessment Activities <br /> Area Proposed Activity Rationale CPT HydroPunch B Zone C Zone D Zone <br /> Depth Depth Well Well Well <br /> 1 C and D zone monitoring well installation Confirm HydroPunch Ps/CPT93-1; 60 feet 90 feet <br /> C and D zone monitoring&remediation; <br /> C and D zone wells ada'cent to A and B zone well pair <br /> 2 C and D zone monitoring well installation Confirm HydroPunch PS/CB93-1 60 feet 90 feet <br /> C and D zone monitoring&remediation <br /> C and D zone well pair in southern part of site <br /> 3 B.C,and D zone well installation B.C,D zone monitoring and remediation 35 feet 60 feet 90 feet <br /> downgradient of area of highest concentrations <br /> adjacent to existing A zone well PS/MW-20 <br /> 4 B and C zone well installation Confine HydroPunch PS/CPT93-8 and PSICPT93-5 35 feet 60 feet <br /> add deeper level wells near A zone well PS/MW-19 <br /> B and C zone monitoring and remediation <br /> 5 B.C.and D zone well installation Confine HydroPunch PSICPT93-4 35 feet 60 feet 90 feet <br /> wells for monftoring of three zones and remediation of C and D <br /> 6 CPT,HydroPunch(C and D zone) Assess geology and dissolved petroleum hydrocarbons 100 feet 60&90 feet <br /> define deeper plume periphery <br /> possible monitoring wells C and D 60 feet 90 feet <br /> 7 CPT,HydroPunch(C and D zone) Assess geology and dissolved petroleum hydrocarbons 100 feet 60&90 feet <br /> define deeper plume periphery <br /> possible monitoring wells C and D 60 feet 90 feet <br /> 8 B zone well installation Confirm PS/C893-3 35 feet <br /> monitor B zone plume perphery, <br /> 9 2 CPTs;HydroPunch(C and D zone) Assess geology and dissolved petroleum hydrocarbons 100 feet 60&90 feet <br /> define deeper plume periphery <br /> possible monitoring wells C and D at 1 or 2 locations 60 feet 90 feet <br /> 10 CPT,HydroPunch(C and D zone) Assess geology and dissolved petroleum hydrocarbons 100 feet 60&90 feet • <br /> define deeper plume periphery <br /> possible monitoring wells(C and D) 60 feet 90 feet <br /> Totals 4 or 5 8 or 10 4 7 or 8[a] 6 or 7[a] <br /> [a]potential well locations in areas 6 and 7 or in areas 9 and 10 contingent upon CPT.HydroPunch data <br /> based on analytical results,wells would be placed at plume periphery and not in all 4 areas. <br /> dmctexceldat\posfileslassess.xls Page 1 <br />