Laserfiche WebLink
i <br /> Section 5 <br /> Final Remediation Plan <br /> n Plan is intended to present the scope and sequence of <br /> The following Final Remediatio <br /> i activities that will ultimately lead to approval for site closure by the CVRWQCB• <br /> proposed <br /> ` <br /> Remediation Recommendation <br /> evaluated previously in Section 4 as Option A, <br /> Intrinsic <br /> The remediation program recommended over the next best alternative, <br /> Bioremediation Demonstration, is highly <br /> long-term <br /> Treatment. <br /> feasibility;aTe <br /> option B, Groundwater pumping with Aboveground effectiveness. <br /> theseoptions: e � administrativeand cot <br /> Option A includes he owing components. <br /> 1, <br /> • Continued operation of the ASISVE system for source removal <br /> • Demonstration of intrinsic remediation <br /> • Groundwater monitoring <br /> • Contingency plan for evaluating monitoring data and determining the need for <br /> intervention <br /> Proposed Work Plan <br /> The fog <br /> llowin work plan summarizes Del Monte's intended course of action toward self- <br /> . <br /> directed remediation and closure of the Disco site. <br /> ASISVE Operation and Shutdown <br /> ediation will involve continued operation and monitoring °f the ASection 2S <br /> VE system <br /> Site rem The engine <br /> Operation and monitoring of the ers and blower operation will1 begin to cycle when the soil <br /> will be replaced with GAC filters <br /> vapor concentration drops below 500 ppmv. <br /> Monitoring <br /> wells that will provide direct evidence of groundwater quality x thcontaminant <br /> I <br /> zone are MW-DIS-1 and 2. As con ti 5 e°toward closure wne to ill 1 be to document that smear <br /> NP-1, the f psystem. When <br /> the piezometer. <br /> iezometer cluster <br /> f- <br /> i zone contamination has been removed weleenough <br /> trr ti nso as umeasured in MW DIS-1 and NP-2, <br /> j groundwater and soil vapor benzene cont <br /> declined significantly in four consecutive monitoring quarters,viouslfi identified in <br /> rmatory soil <br /> have not d g <br /> boring will be made to sample groundwater and soil vapor in the area previously <br /> analysis are <br /> Section 3 as the source, or smear zone'results from MW-DIS--If results of the confirmatory <br /> and NP-2,Dei Monte will <br /> similar to the four quarterly monitoring <br /> submit a letter to PHS/EHD with laboratory results documenting shut down of the AS/SV <br /> r <br /> system. <br /> _ l <br /> 5-1 <br /> lo030984.Doc <br />