SITE INFORMATION AND CORRESPONDENCE_1987-1992

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CLEANUP AND ABATEMENT ORDER - -5- SIMS-GRUPE MANAGEMENT CORPORATION STOCKTON, SAN JOAQUIN COUNTY INTERIM REMEDIAL MEASURES (cont.) FINAL REMEDIAL MEASURES (cont. ) 5a Within 30 days of Board approval 7b Within 30 days of the Board's of the IRM Alternative Analysis approval of the Phase IV Work Plan, Report, submit for Board approval implement the investigation. a draft 10 percent design of the approved IRM(s) . The Dischargers 8b By 1 December 1992, submit for shall base the draft design on Board appr a Feasibility Study available soil and ground water (FS) ea ing the economic and va data. The design shall specify, techni ibility of cleanup but not be limited to, the ground alternatives the contaminated water treatment system, proposed s and groun ater defined in ground water extraction well Final RI Report. The FS shall locations and depths, screened eco nd one or a combination of intervals, construction details, up remedies which can clean up pumping rates and predicted radii t round water to concentrations of influence. All soil and grow bel nalytical detection limits water analytical data, pumping for t e most sensitive EPA standard test analytical procedures andnalytical method. results, and any other data used to develop the design, 11 be The recommended alternative shall appended to the draft The be consistent with the IRM. draft design shalless Board's comments an c 9b Within 30 days of Board approval of the Board's recommends i ns on he the FS, submit the following: IRM Work Plan (1) a 10 percent Remedial Design 6a Within 6 ys of and approval for the selected remedy(ies) . The of the 10 e cent a ign, submit 10 percent design shall specify the for Board ap va 1) the 100 implementation of the Board- percent IRM d and (2) the approved remedies and shall contain Report of Waste ischarge for an implementation time schedule. Waste Discharge Requirements governing land disposal of the (2) a draft Proposed Plan treated ground water or an NPDES presenting the recommended cleanup Permit Application for a permit to remedy to the public. discharge the treated ground water to surface waters. 10b Within 60 days of Board approval of the 10 percent design, submit a 7a Within 30 days of Board approval draft 100 percent Remedial Design of the draft IRM Design, submit (RD) . for Board approval the Final IRM Design incorporating the Board's llb By 1 February 1993, submit a Final comments and recommendations. Risk Assessment.