FIELD DOCUMENTS AND WORK PLANS 2000-2003

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MONITORING AND REPORTINGGRAM NO.R5-2003-XXXX . 3 SPX CORPORATION,MARLEY COING TOWER COMPANY IN SITU GROUNDWATER REMEDIATION PILOT STUDY,SAN JOAQUIN COUNTY TENTATIVE REPORTING Iii reporting monitoring data, the Discharger shall arrange the data in tabular form so that the date, sample type (e.g., influent, effluent, groundwater, etc.), and reported analytical result for each sample are readily discernible. The data shall be summarized in such a manner to clearly illustrate compliance with waste discharge requirements and spatial or temporal trends, as applicable. The results of any monitoring done more frequently than required at the locations specified in the Monitoring and Reporting Program shall also be reported to the Regional Board. As required by the California Business and Professions Code Sections 6735, 7835, and 7835.1, all Reports shall be prepared under the direct supervision of a Registered Engineer or Geologist and signed by the registered professional. A. Monitoring Reports Phase 1 Pilot Study 40 Day Report Within 40 days after start of injection of Phase 1 pilot study, the Discharger shall submit a report summarizing the results of the pilot test, including an assessment of calcium polysulfide/ethanol injection, and recommendations for continuing with the proposed Phase 2 pilot study. At a minimum, the report shall include: 1. A narrative description of all preparatory, monitoring, sampling, and analytical testing activities for the groundwater monitoring. The narrative shall be sufficiently detailed to verify compliance with the WDR, the attached MRP, and the Standard Provisions and Reporting Requirements. The narrative shall be supported by documenting flow rates, and total volume of calcium polysulfnde and ethanol injected, and parameters measured. 2. An assessment of calcium polysulfide and ethanol discharge to the aquifer, and results of all sampling; 3. Copies of all laboratory analytical report(s); 4. A calibration log verifying weekly calibration of any field monitoring instruments (e.g., pH, dissolved oxygen meter, etc)used to obtain data; 5. An evaluation of the changes in aquifer geochemistry including the extent of hexavalent chromium reduction, assessment of changes in mobility of other metals including arsenic, and changes in sulfate. 6. An analysis of whether the injected calcium polysulfide/ethanol and any breakdown or byproducts is being captured by the extraction system or is continuing to spread;