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WASTE DISCHARGE REQUIREMENTS -7- <br /> DEFENSE DEPOT TRACY <br /> SAN JOAQUIN COUNTY <br /> (i ) All extracted ground water shall be treated by the air stripper <br /> facility and discharged to the storm drain holding pond and/or <br /> to the injection well field. <br /> ( ii ) The discharge of treated ground water to the three injection <br /> wells shall not exceed the steady state reinjection capacity of <br /> the wells as determined during the "Potable Water Startup" phase <br /> (Discharge Specification C.1. ). <br /> (iii ) Discharges of treated groundwater to the storm drain holding <br /> pond shall be prohibited between 1 November and April 30, unless <br /> the Discharger submits documentation to the Board that <br /> demonstrates that a discharge is necessary to maintain the <br /> ecological systems present in the pond, and that the discharge <br /> would not significantly reduce the storm water retention <br /> capacity of the pond. <br /> (iv) The Discharger shall operate the extraction wells to produce the <br /> most effective hydraulic barrier to off-Depot contaminant <br /> migration. <br /> (v) The system operations during this phase shall be monitored per <br /> the "Full Scale Operational Phase Monitoring" plan in the <br /> attached Monitoring and Reporting Program No. 90- <br /> (vi ) All treatment, transport, and disposal components (including <br /> pumps, valves, liquid level controllers, pipelines, blowers, <br /> flow meters, pressure gauges, etc. ) shall be inspected daily for <br /> leaks and/or malfunctions. In addition, the system's automatic <br /> controls, including the alarm/notification and shutdown systems, <br /> must be tested and certified operational on a monthly basis. <br /> 5. Neither the treatment nor the discharge shall cause a nuisance or <br /> condition of pollution as defined by the California Water Code, <br /> Section 13050. <br /> 6. The discharge shall not cause degradation of any water supply. <br /> 7. Collected screening, sludges, and other solids removed from liquid <br /> wastes shall be disposed of in a manner consistent with Subchapter 15, <br /> Chapter 3, Title 23, CCR. <br /> 8. The discharge shall not have a Ph less than 6.5 nor greater than 8.5. <br /> D. Provisions: <br /> 1 . The Discharger may be required to submit technical reports as directed <br /> by the Executive Officer. <br /> 2. The Discharger shall comply with the attached Monitoring and Reporting <br /> Program No. 90- <br />