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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br />CENTRAL VALLEY REGION <br />ORDER NO. 96-201 <br />NPDES NO. CA0083968 <br />WASTE DISCHARGE REQUIREMENTS <br />FOR <br />CALIFORNIA AMMONIA COMPANY <br />CALAMCO - STOCKTON TERMINAL <br />SAN JOAQUIN COUNTY <br />The California Regional Water Quality Control Board, Central Valley Region, (hereafter Board) <br />finds that: <br />California Ammonia Company (hereafter Discharger) submitted a Report of Waste <br />Discharge, dated 29 February 1996, and applied for authorization to discharge non- <br />contact cooled water and storm water under the National Pollutant Discharge Elimination <br />System (NPDES). <br />This facility has been subject to Monitoring and Reporting Program No. 96-803, which <br />was designed to be used on an interim basis until waste discharge requirements, along with <br />a revised and complete monitoring and reporting program, could be adopted for the <br />facility. <br />Storm water discharges from the facility were previously regulated under a California <br />General Industrial Activities Storm Water Permit. Storm water discharge regulations will <br />be incorporated into this site specific NPDES permit. <br />The Discharger owns and operates an ammonia storage and distribution facility. The facility <br />is in projected Section 9, T1N, R6E, MDB&M, as shown on Attachment A, a part of this <br />Order. The facility is on property owned by the Port of Stockton. Non-contact cooled water <br />is discharged to the Wine Slip portion of the Deep Water Channel in the Port of Stockton, <br />tributary to the San Joaquin River, a water of the United States, at the point, latitude <br />N 37° 56' 29" and longitude W 122° 19' 30". <br />Channel water from the Port's Wine Slip is pumped through one of two heat exchangers. <br />The heat exchangers remove heat from the water to warm the facility's product, ammonia. <br />Ammonia is warmed by the river water from -28°F to its shipment temperature of +32°F. <br />The water is then used for cooling condensers and/or aqua converters where some of the <br />heat is returned to the water. The net change in water temperature is a 2° to 5°F cooling. <br />This water is then returned to the Wine Slip.