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Mr Don Rodgers Proposal P96-050 31 . May 14, 1996 Page 5 Based on the analytical results, and assuming the water will be classifted as nonhazardous, the water generated from the dulling activities and development will be disposed of at a recycling facility Task 3 - Quarterly Groundwater Monitoring and Reporting EMCON will conduct four quarters of groundwater monitoring of the newly installed monitoring well(s) Quarterly groundwater monitoring consists of measuring groundwater elevations, measuring free product thickness (if present), collecting samples from the groundwater monitonng well(s) once per quarter, and submitting groundwater sample(s) to a state-certified laboratory for analysis of TPHG and BTEX In addition, MTBE will be analyzed dunng the initial sampling event If MTBE is not detected in the groundwater sample(s) dunng the initial sampling event, MTBE analyses will be discontinued Groundwater samples will also be analyzed for CLHC on a semi-annual basis Based on analytical results, and assuming the water will be classified as nonhazardous, the water will be disposed of at a recycling facility twice per year during the quarterly monitoring program In addition to the groundwater monitonng, EMCON will prepare and submit quarterly groundwater monitoring reports to Mr. Rodgers and the regulatory agencies The report will include the tabulated depth to water measurements and analytical results from the sampling of the monitonng well(s), gradient and direction of groundwater flow beneath the site, and expected status of the site acts%ittes Task 4 - Prepare A Corrective Action Plan EMCON will prepare a CAP The report w ill summarize the results of the investigation The report will present concentrations and distribution of petroleum hydrocarbons in soli and groundwater beneath the site In addition, the CAP will address both soil and groundwater remediation as descnbed in the CRWQCB's Tn-Regional Guidelines and will provide a basis for obtaining bids for final remediation for the site OPTIONAL UNIT TASKS (NOT INCLUDED IN TOTAL COST) The following section presents optional unit tasks in the event that additional bonngs, vapor extractions wells, etc are required to define the extent of contamination or to prepare for feasibility studies Summary of unit costs are presented in Table 3 In addition, EMCON has prepared unit cost prices to perforin a vapor extraction test The following activities will not be implemented without the approval of Mr Rodgers SACT,XP96-050 31-95�drns