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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION ORDER NO. 95-149 NPDES NO. CA0081426 WASTE DISCHARGE REQUIREMENTS FOR ESCALON PACKERS, INC. SAN JOAQUIN COUNTY The California Regional Water Quality Control Board, Central Valley Region, (hereafter Board) finds that: 1. Escalon Packers, Inc., (hereafter Discharger) submitted a Report of Waste Discharge, dated 8 February 1995, and applied for a permit renewal to discharge waste under the National Pollutant Discharge Elimination System (NPDES). 2. Waste Discharge Requirements Order No. 90-169, adopted by the Board on 22 June 1990, prescribed requirements for a discharge of noncontact cooling water and evaporator water during emergency situations (if the cooling towers experience mechanical failure) from a tomato processing plant to the Stanislaus River via the San Joaquin County Main District Canal, a water of the United States, at a point in the SE 1/4 of Section 17, T2S, R9E, MBD&M, south of Escalon, as shown on Attachment 1, a part of this Order. Process wastewater is discharged to the City of Escalon's wastewater treatment plant. 3. Order No. 90-169 is neither adequate nor consistent with current plans and policies of the Board. 4. Wastewater generated from the facility consists of noncontact cooling water and evaporator water and is expected to be discharged on an infrequent basis, estimated at once every few years. 5. Evaporator water is generated by the condenser units that cool the vapors drawn off from the tomato pulp cookers. This water then passes through a cooling tower for temperature reduction. 6. The evaporator water is combined with noncontact cooling water and is routed through two fine mesh screens to remove any residual tomato particles that might be present. The water will be chlorinated before being discharged to the irrigation canal.