SU0009372 - Laserfiche WebLink

Home Browse Search

Dan Panella - 2 - 21 April 2015 Oak Farm Vineyards DISCHARGE DESCRIPTION Oak Farm Vineyards is located at 23627 N. Devries Road, near Lodi, San Joaquin County. The winery is located on approximately 73 acres (San Joaquin County APN 003-040-03 and 003-040-20). The property consists of 60 acres of vineyards and a cluster of rural agricultural buildings configured to accommodate winery production activities and public access marketing events. According to the RWD, the winery currently consists of a 4,400 square foot wine production building and an 800 square crush pad. Later development phases will include the construction of a 2,000 square foot multipurpose winery building, two 4,000 square foot wine production buildings, an 800 square foot covered dock, a kitchen, and wine tasting room to accommodate marketing events. The RWD stated that the winery generates approximately 55.000 gallons of wastewater annually and wastewater flows will increase to 60,500 gallons per year in the next five years. Wastewater generated during crushing, bottling, and equipment cleaning is collected on a concrete paved crush pad that drains into a sump. Wastewater is then conveyed from the sump into two 1,500 gallon aboveground storage tanks for later discharge into an adjoining 25 acres of vineyards either via flood irrigation through a series of checks, or with a water truck for spray application. The remainder of the 60 acre vineyard is drip irrigated from an on-site agricultural supply well. Because the crush pad is covered and crushing does not occur during rain events, storm water generated at the winery does not come in contact with raw materials. Storm water is collected and managed separately from winery process wastewater. Sanitation chemicals used during facility operations include sodium percarbonate (300 gallons per year), citric acid (300 gallons per year) peroxide acetic acid (500 gallons per year), and sodium carbonate (300 gallons per year). Facility operations are performed to manage the proper use, storage, and disposal of these materials. The RWD indicated that approximately 7 tons of pomace (stems, seeds, and skins) would be generated from grape crushing activities conducted between August and November each year. Crushed solids and skimmed solids recovered during fermentation (pomace and lees) are stored in half-ton containers and then spread evenly and disced into the soil at vineyards owned by the Discharger. Domestic wastewater is discharged to an on-site septic system permitted through the San Joaquin County Environmental Health Department. Winery wastewater is not discharged into the on-site septic system. MONITORING AND REPORTING Attachment B of the Waiver includes specific monitoring and reporting requirements that you must comply with, including routine monitoring and reporting to the Central Valley Water Board. Please review the Monitoring and Reporting Program closely and establish the appropriate record keeping system so that you are able to complete the required Annual Monitoring Report form, which is also contained in Attachment B of the Waiver. By February 1 of each year, the Annual Monitoring Report must be submitted to our office, even if there is no discharge during the reporting year. The 2015 Annual Monitoring Report is due by 1 February 2016.