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Stantec 0 Mr. Matthew Belair May 23, 2012 Page 2 of 5 Board), Order No. 96-077, Waste Discharge Requirements for Delicato Vineyards Wastewater Disposal Site, San Joaquin Valley, March 28, 1996, surface water drains as sheet flow northwest from the Site to Lone Tree Creek, a tributary to the San Joaquin River, the beneficial uses of which include navigation. Lone Tree Creek is located approximately 3,000 feet north of the Site. Oil released from the Site would have to pass through a chain-link fence, cross 1,500 feet of vineyard, the frontage road bordering the property, the Union Pacific Railroad, French Camp Road, and 1,700 feet of the French Camp Golf Course (see Figure 2) to reach Lone Tree Creek. Zero Wastewater Discharge. The winery generates waste water from wine processing and equipment sanitizing operations, that consists of wine, grape skins, seeds, and stems. Process wastewater is collected in a series of three sumps (Sump#1, Sump#2, and Sump#3) located throughout the Site and discharged to two approximately 10-acre unlined checks for uptake by vegetative growth. This discharge is being done under the direction of Board Order No. 96-077, one of the provisions of which is that discharge of wastewater to surface waters or surface water drainage courses is prohibited. Petroleum Storage. Petroleum storage at the Site supports the operation and maintenance of the winery. Lubricating oils and food and non-food grade oils are delivered via flatbed or cargo box truck and stored in metal sheds in both Oil Storage Areas#1 and#2 (see Figure 3). Diesel and unleaded gasoline are delivered to the Site via tanker truck and stored in a dual-compartment Convault aboveground storage tank, located in Oil Storage Area#2. Oil Storage Area #1. Three aboveground storage tanks (one 600-gallon tank of waste oil, one 315- gallon tank of motor oil, and one 315-gallon of hydraulic oil) and approximately ten 55-gallon drums of oil (motor oil, hydraulic oil, refrigerant oil, and food grade and non-food grade oil) are each contained within concrete spill containment berms on a concrete pad with metal roofing. The area in front of the concrete pad is paved and sloped to the northeast towards a catch basin that drains to facility containment Sump #1. This sump is part of the wastewater processing system that collects wastewater from wine processing operations throughout the Site. Oil Storage Area#2. The Convault tank is double-walled. Each of the compartments has a capacity of 2,000 gallons. The area in front of the Convault tank is paved and sloped to the southeast towards a catch basin that drains to facility containment Sump#1. Fuel is delivered to the Site via 4,000-gallon diesel delivery trucks and transferred to the Convault via flexible hose. The deliver tank has two compartments, 2,000 gallons each. Delivery contractors are required to place secondary containment buckets beneath each fuel connection hose during transfer. This procedure is documented on a sign posted adjacent to the tank. Fuel transfer operations are attended by the delivery truck driver. In the event of a release during transfer, most of the fuel would drain southeast towards the catch basin which drains to facility Sump #1. Some fuel may flow north through the chain-link fence and into the vineyard on the other side. Storage of approximately twenty 55-gallon drums of motor oil, hydraulic oil, refrigerant oil, and food grade and non-food grade oil is provided in a metal shed west of the Convault tank. The shed, open in the front, is located on a concrete pad with a 6-inch concrete berm on three sides. The area in front of the concrete pad is compacted soil. The January 13, 2012 topographic map, prepared by Stantec, indicates runoff from potential spills in the petroleum storage areas would flow to the north and northeast from Oil Storage Area #1, and north and southeast from Oil Storage 2 (see Figure 4).