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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br />CENTRAL VALLEY REGION <br />ORDER NO. <br />NPDES NO. CA0083003 <br />WASTE DISCHARGE REQUIREMENTS <br />FOR <br />SHELL OIL COMPANY <br />STOCKTON BULK FUEL DISTRIBUTION FACILITY <br />WASTEWATER TREATMENT SYSTEM DISCHARGE <br />SAN JOAQUIN COUNTY <br />The California Regional Water Quality Control Board, Central Valley Region, (hereafter Board) finds <br />that: <br />1. Shell Oil Company (hereafter Discharger) submitted a Report of Waste Discharge, dated 7 February <br />1992, and applied for authorization to discharge waste under the National Pollutant Discharge <br />Elimination System (NPDES). Additional information regarding the discharge was received 25 June <br />1992, 26 September 1992, 26 October 1992, 17 December 1992, 8 September 1993, and 7 March <br />1994. <br />2. The Discharger proposes to construct a wastewater collection, treatment, and disposal system at the <br />Stockton Bulk Fuel Distribution Facility, located on Rough and Ready Island, in TIN, R6E, <br />MDB&M, as shown on Attachment A, a part of this Order. The treatment plant is on property <br />owned by the discharger (Assessor Parcel No. 161-030-02). Treated industrial wastewater will be <br />discharged to the San Joaquin River, a water of the United States. <br />3. The wastewater source is groundwater containing petroleum hydrocarbons. The estimated flow rate <br />is 14,400 gpd. The primary pollutants in the influent wastewater are total petroleum hydrocarbons <br />(gasoline and diesel), benzene, toluene, xylene, ethylbenzene, and tetraethyl lead. <br />4. Wastewater is proposed to flow through a CPI separator, then be stored in Tank 14 (600,000 gallon <br />volume) for equalization. Wastewater will be treated in a fluidized bed biological reactor. Treated <br />wastewater will be transferred to Tank 16 (230,000 gallon volume) for settling of solids and <br />monitoring to determine if in compliance with this Order, prior to the tank volume being discharged <br />to the San Joaquin River. The Discharger will operate additional treatment units, as necessary, in <br />order to meet effluent limitations. <br />5. The Report of Waste Discharge and additional information submitted describes the proposed <br />discharge as follows: <br />Maximum Daily Flow: 230,000 gallons per day (gpd) <br />Monthly Maximum Flow: 450,000 gallons per month <br />