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WASTE DISCHARGE REQUIREMENTS 2 GOLDEN GATE FRESH FOODS, INC. VICTOR FINE FOODS TREATMENT PLANT AND CLASS II SURFACE IMPOUNDMENT SAN JOAQUIN COUNTY VFF will treat its process wastewater, mix it with the polluted ground water, and inject the mixture, with a TDS of about 3,000 mg/l , into a deep, marine formation aquifer referred to as the Domigene Formation. The injection zone is expected to have TDS concentrations exceeding 10,000 mg/l and is about 1,000 feet below the deepest source of drinking water. The treatment process will include the following unit processes and facilities: (1) screening, (2) dissolved air floatation, (3) equalization, (4) aeration and sedimentation (activated sludge process) , (5) chemical treatment, and (6) filtration. This proposed Order regulates the design and operation of the equalization/emergency storage basin (EESB) and the performance of the treatment plant to assure sufficient water quality for injection. The EESB is a 1-acre surface impoundment constructed to comply with the prescriptive standards and meet the performance standards of Subchapter 15. Features include a double, synthetic liner system, a leachate collection and removal system (LCRS) , a french drain around the inner perimeter, and lysimeters for vadose zone monitoring. The double synthetic liner system and french drain are engineered alternatives to the construction standards of Subchapter 15. The Discharger's engineers will certify that the liner system and french drain are consistent with the performance goals of Subchapter 15 and should provide equivalent protection against water quality impairment. The normal operating water depth of the EESB will be about 7 feet, which allows for 12 feet of freeboard. However, the proposed Order allows VFF to divert to, and hold wastewater in the EESB for up to 30 days during maintenance or repairs to the activated sludge or injection well facilities. At no point may the freeboard in the EESB be less than 2.5 feet. After such a diversion, the water level in the EESB must be returned to normal operating levels at a rate proportional to the length of diversion, but not greater than 90 days. The treatment plant will produce an effluent with maximum BOD and SS concentrations of 5 mg/l . Waste sludge generated from the treatment process will be dried in sludge drying beds and used as a soil amendment if it is determined that such use is a benefit to the soil and does not pose a threat to water quality. Waste discharge requirements for closure of the pond currently containing wastewater and other areas of the site that have been impacted by the discharge will be proposed at a later date. This Order proposes to retain Cease and Desist Order No. 88-191 until cleanup of the aquifer has been achieved to the Board's satisfaction. DLB