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i CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION ORDER R5-2013-0028 WASTE DISCHARGE REQUIREMENTS FOR DELICATO VINEYARDS, INC. DELICATO FAMILY VINEYARDS SAN JOAQUIN COUNTY The California Regional Water Quality Control Regional Board, Central Valley Region, (hereafter Central Valley Water Board) finds that: 1. On 19 March 2010, Delicato Family Vineyards, Inc., (hereafter"Discharger") submitted a Report of Waste Discharge (RWD) for an existing winery facility located in San Joaquin County, California. An amended RWD was submitted on 29 February 2012, with additional information provided on various dates in October and November 2012. 2. Waste Discharge Requirements (WDRs) Order No. 96-077 was adopted by the Central Valley Water Board on 22 March 1996 to regulate wastewater discharges associated with Discharger's winery operations. The Monitoring and Reporting Program (MRP), was revised on 14 September 2001 to include quarterly groundwater monitoring. 3. The Discharger owns and operates the winery facility and is responsible for compliance with these WDRs. The facility consists of approximately 140 acres of vineyards, administrative and wine production buildings, two unlined shallow wastewater ponds used as pumping sumps, and 23 acres of Land Application Areas (LAAs) for the discharge of winery wastewater. Domestic wastewater is discharged to several separate septic tank/leachfield systems regulated by the San Joaquin County Environmental Health Department. 4. The facility is located at 12001 S. Highway 99 in Manteca, California (Section 17, T1S, R7E, MDB&M). The facility occupies San Joaquin County Assessor's Parcel Numbers (APN) APN 204-04-007, 204-04-008, 204-04-009, 204-04-010, 204-04- 012, 204-04-014, 204-04-016, 204-05-007, 204-05-008, 204-05-009, 204-05-010, 204-05-011, 204-05-014, 204-05-023, and 204-05-024. A topographic map of the site is shown on Attachment A, which is attached hereto and made part of this Order by reference. 5. Order 96-077 allows a maximum daily wastewater flow of up to 0.325 million gallons per day (MGD), which is equivalent to a total annual flow of 119 million gallons per year (MGY). The Discharger currently discharges approximately 0.153 MGD (56 MGY) and proposes to further expand winery operations, increasing daily wastewater discharge to 0.197 MGD (72 MGY). Process wastewater is currently collected from three sumps within the winery facility and conveyed to two unlined shallow wastewater ponds used as pumping sumps and then discharged