SITE INFORMATION AND CORRESPONDENCE_1992

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SUBSTANTIVE REQUIREMENTS -3- May 21, 1992 FOR DDRW, SHARPE (c) All leaks and/or malfunctions observed during the potable water test shall be corrected. 3. TREATMENT PERFORMANCE EVALUATION (TPE) After successful completion of the SC and the PWSP, the TPE shall be conducted to monitor extraction well performance and to determine the effectiveness of the treatment system to meet treatment objectives. The TPE shall not start until the Board, Department of Toxic Substances Control (Department), and the US Environmental Protection Agency (US EPA), have approved the design and layouts of the extraction and injection systems. The following minimum requirements apply to this treatment performance evaluation phase: (a) The TPE shall last long enough to demonstrate that contaminated ground water has been extracted and treated from each extraction well. (b) The extracted ground water shall be treated and discharged to on-site "Baker" type tanks or the sanitary sewer system. Discharge to the injection well is prohibited. (c) Each of the extraction wells shall be pumped long enough to confirm that the ground water pumps and water level shutoff devices operate properly. (d) Water entering and leaving the air stripping tower and water pumped from the extraction well(s), shall be monitored in accordance with the treatment performance testing monitoring plan in the attached Monitoring and Reporting Program. (e) All treatment, transport, and disposal components (including pumps, valves, liquid level controllers,pipelines, blowers, flow meters, pressure gauges, etc.) shall be inspected for leaks and/or malfunctions. In addition, the system's automatic controls, including the alarm/notification and shutdown systems, shall be inspected and certified operational. All mechanical equipment shall be operated under load to assure proper performance. Any deficiencies shall be corrected. (f) The Discharger shall not resume operation of the system until the Board, Department, and the US EPA has reviewed the treatment performance testing report (Provision D.5) and have authorized operation. 4. PROVE-OUT PHASE (POP) OF SYSTEM The Discharger shall not initiate this phase of the start-up until the requirements of the TPE have been successfully completed in accordance with Discharge Specification C.3. The following minimum requirements apply to this POP: (a) The POP shall last a minimum of 48 hours, and sufficiently long enough to show that item 4(b), (c), (d), and (e) have been complied with..