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CALIFORNIACIONAL WATER QUALITY CONIC BOARD <br /> CENTRAL VALLEY REGION <br /> RESOLUTION NO. R5-2006-0101 <br /> AMENDING WASTE DISCHARGE REQUIREMENTS <br /> ORDER NO. R5-2004-0028 <br /> NPDES NO. CA0081558 <br /> CITY OF MANTECA <br /> WASTEWATER QUALITY CONTROL FACILITY <br /> SAN JOAQUIN COUNTY <br /> The California Regional Water Quality Control Board, Central Valley Region, (hereafter <br /> Regional Water Board) finds: <br /> 1. On 19 March 2004, the Regional Water Board adopted Waste Discharge <br /> Requirements (WDR) Order No. R5-2004-0028, NPDES No. CA0081558, prescribing <br /> waste discharge requirements for the City of Manteca, City of Lathrop, and Dutra <br /> Farms at the Wastewater Quality Control Facility (WQCF) in San Joaquin County. For <br /> the purposes of this Resolution, the City of Manteca is hereafter referred to as <br /> "Discharger." <br /> 2. The Discharger owns and operates a wastewater collection, treatment, and disposal <br /> system, and provides sewerage service to the City of Manteca and the City of Lathrop. <br /> Land disposal of effluent is maximized by discharging effluent at agronomic rates <br /> seasonally to property surrounding the WQCF. Excess flow of treated municipal <br /> wastewater receives chlorine disinfection and dechlorination prior to discharge to the <br /> San Joaquin River. <br /> 3. Up until August 2004, the Discharger irrigated about 210 acres, growing crops for use <br /> as dairy feed. A total of approximately 48 acres of this land has been either converted <br /> to other uses or lost due to the expansion of the WQCF. To compensate for these <br /> loses and to maximize land disposal, the Discharger has acquired a 34-acre parcel on <br /> the east boundary of the WQCF, designated as Fields 11-N and 11-S (see <br /> Attachment A). Fields 11-N and 11-S are currently in crop production and are irrigated <br /> solely with water from the South San Joaquin Irrigation District. <br /> 4. Discharge Specifications (Land Disposal) C.2. states that, "The discharge shall be kept <br /> within the designated reclamation area, as shown on Figure 2, at all times." Fields <br /> 11-N and 11-S are not included in the designated reclamation area described by <br /> Figure 2. Therefore, the Discharger has requested a modification of the designated <br /> reclamation area to allow irrigation of the fields with treated wastewater. This <br /> Resolution amends WDR Order No. R5-2004-0028 by replacing Figure 2 with the <br /> updated figure in Attachment A to this Resolution. <br />