SITE INFORMATION AND CORRESPONDENCE

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Lodi Vintners 4 23 August 2013 San Joaquin County Additionally, Regional Board staff has reviewed air photos of the facility that appear to show a discharge pipe connecting Pond 4 to the unpermitted fifth pond. The pipe (which appears to have been located in the southern berm of Pond 4 at the location where staff observed significant erosion and signs of overflow) is not permitted by Order 93-112 and shall not be replaced unless and until Revised Waste Discharge Requirements are issued by the Regional Board. Required Corrective Actions: By 22 September 2013, Lodi Vintners shall submit a report and photographs certifying the following: 1. The southern berm of Pond 4 has been repaired. 2. All unauthorized discharges/overflows to the fifth pond have ceased. 3. Vegetation in and around the wastewater ponds has been removed/cutback and signs warning people of wastewater disposal have been posted around the ponds. Additionally, by 31 October 2013, Lodi Vintners shall submit an amended December/Annual monitoring report for 2012, a Pond Maintenance and Vegetation Control Plan, and a Disposal Pond Water Balance for the four permitted wastewater disposal ponds. The amended December/Annual monitoring report for 2012 shall contain all of the information required by Revised Monitoring and Reporting Program 93-112. If the information is not available the report shall state so and shall describe the actions that Lodi Vintners will take to ensure that future reports are complete and submitted on-time. The Pond Maintenance and Vegetation Control Plan shall describe monthly, quarterly, and annual maintenance that will be done to minimize and mitigate pond berm erosion, vegetation in and around the wastewater ponds, and sludge accumulation in the ponds. The Disposal Pond Water Balance shall evaluate the four disposal ponds' ability to provide sufficient capacity to maintain two feet of freeboard on a month-by-month basis with the maximum wastewater flow allowed by WDRs Order 93-112 (monthly average dry weather discharge flow of 50,000 gallons per day). The water balance must include monthly evaporation, precipitation, and percolation rates, and shall identify contributions from major sources to monthly discharge volumes such, storm water run-on from the crush/processing area and solids staging area. Rainfall shall be based on the 100-year, 365-day precipitation event. If the water balance identifies that inadequate storage and disposal capacity exists, then the water balance shall include a plan for reducing wastewater generation rates and/or disposing of excess wastewater off-site at an appropriately permitted wastewater treatment facility. The Disposal Pond Water Balance shall be prepared by, or under the supervision of, a California Registered Engineer, and signed/stamped by the registered engineer.