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PA-2100045 Project - 4 - 25 August 2021 San Joaquin County https://www.waterboards.ca.gov/centralvalley/water issues/water quality certificatio n/ Waste Discharge Requirements —Discharges to Waters of the State If USACE determines that only non-jurisdictional waters of the State (i.e., "non- federal" waters of the State) are present in the proposed project area, the proposed project may require a Waste Discharge Requirement (WDR) permit to be issued by Central Valley Water Board. Under the California Porter-Cologne Water Quality Control Act, discharges to all waters of the State, including all wetlands and other waters of the State including, but not limited to, isolated wetlands, are subject to State regulation. For more information on the Waste Discharges to Surface Water NPDES Program and WDR processes, visit the Central Valley Water Board website at:https://www.waterboards.ca.gov/centralvalley/water issues/waste to surface wat e r/ Projects involving excavation or fill activities impacting less than 0.2 acre or 400 linear feet of non-jurisdictional waters of the state and projects involving dredging activities impacting less than 50 cubic yards of non-jurisdictional waters of the state may be eligible for coverage under the State Water Resources Control Board Water Quality Order No. 2004-0004-DWQ (General Order 2004-0004). For more information on the General Order 2004-0004, visit the State Water Resources Control Board website at: https://www.waterboards.ca.gov/board decisions/adopted orders/water quality/200 4/wqo/wgo2004-0004.pdf Waste Discharge Requirements — Discharges to Land The discharge of winery wastewater and residual solids to land is subject to regulation under individual WDRs or Central Valley Water Board Order R5-2015- 0005 (the Conditional Waiver of Waste Discharge Requirements for Small Food Processors, Small Wineries and Related Agricultural Processors within the Central Valley Region, or Waiver). The Waiver is structured to regulate winery waste discharge on a tiered basis, based on the volume of waste discharged to land annually. In accordance with California Water Code Section 13260, the project proponent is required to submit a Report of Waste Discharge (RWD) to apply for the Waiver. We recommend that the RWD be submitted 12 to 18 months before the expected startup date. Pursuant to the State Board's Onsite Wastewater Treatment Systems Policy, the regulation of the septic system may be regulated under the local agency's management program. For more information on waste discharges to land, visit the Central Valley Water Board website at: http://www.waterboards.ca.gov/centralvalley/water issues/waste to land/index.shtm I