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WASTE DISCHARGE REQURMENTS • 8 <br /> MARLEY COOLING TOWER COMPANY <br /> SAN JOAQUIN COUNTY <br /> TENTATIVE <br /> 3. Prior to start of the any final activities for the Phase 1 pilot test(larger scale pilot study using <br /> multiple ethanol injection wells), written concurrence must be obtained from the Regional <br /> Water Quality Control Board. <br /> D. Groundwater Limitations: <br /> 1. The discharge shall not cause any constituent other than those identified herein to exceed the <br /> natural concentration of the waste constituent in background water. <br /> 2. The discharge shall not cause the high quality groundwater unaffected by the current plume <br /> undergoing cleanup to be degraded by the constituents identified herein. <br /> E. Provisions: <br /> 1. The Discharger shall notify the Regional Board a minimum of two weeks prior to the start of <br /> Phase 1 injection of sodium dithionite or ethanol. <br /> 2. All of the following reports shall be submitted pursuant to Section 13267 of the California <br /> Water Code. As required by the California Business and Professions Code, all reports shall <br /> be prepared by, or under the direction of an appropriate California Registered Professional <br /> Engineer or Geologist (unless a specific Provision requires a different type of professional <br /> registration). The registered professional shall stamp each report. In addition,the Discharger <br /> shall certify all reports, as required by General Reporting Requirement B.3 of the Standard <br /> Provisions. <br /> a. No later than 60 days after injection for the initial phase of the Phase 1 test, the <br /> Discharger shall submit a data summary with all the field and laboratory data, a <br /> description of the initial phase pilot test, and any preliminary results for review and <br /> approval by the Regional Board staff. <br /> b. No later than 60 days after injection for the Phase 2 test, the Discharger shall submit a <br /> data summary with all the data, a description of the pilot test, and any preliminary <br /> results including the pre and post chromium concentrations. <br /> C. No later than 180 days after injection, the Discharger shall submit a report summarizing <br /> the results of the pilot test, including an evaluation of the effectiveness of using ethanol <br /> as the full-scale remediation of chromium contaminated soil and groundwater at the <br /> Site, the effects of any byproducts on the receiving groundwater, the hydraulic <br /> properties on the aquifer, and any other effects of the in-situ treatment. Other effects <br /> include evaluation of any changes to the aquifer's transmissivity, hydraulic <br /> conductivity and storativity inside the pilot test sodium dithionite or ethanol treatment <br /> zone. Mathematical and computer models should be used to analyze groundwater flow <br /> 08/22/02 2:02 PM Marley Cooling <br />