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WASTE DISCHARGE REQUIREONTS ORDER NO. -3- <br /> R.LAWSON ENTERPRISES DBA WILDROSE VINEYARDS <br /> SAN JOAQUIN COUNTY <br /> Wine Additive Wine Fining Agent Cleaner/Sanitizer <br /> Citric Acid Bentonite Chlorinated Trisodium Phosphate <br /> Malic Acid Copper Sulfate <br /> Tartaric Acid Nylon Polymer <br /> Diammonium Phosphate Potassium Bitartrate <br /> Potassium Metabisulfite <br /> Sulfur Dioxide <br /> 13. Pomace and other grape wastes (skins, seeds, pulp, and stems) from the primary fermentation <br /> process in the winery are placed in bins for off-site disposal. Filter press materials are stored <br /> on-site for eventual tilling into vineyard soil. Yeasts and solids generated in the secondary <br /> fermentation process are washed out of the tanks and either settled in the two-stage clarifier or <br /> pumped to the treatment system. <br /> 14. A wastewater pond is located at the north side of the property. It provides approximately 1.5 acres <br /> of surface area. The pond is subdivided into six 0.25-acre areas by berms, and each subarea is <br /> equipped with a wastewater outfall control valve. When these WDRs were prepared,the pond was <br /> being evaluated by the former cherry briner as a source of salinity to the groundwater. These <br /> WDRs prohibit discharge of wastewater, stormwater, or other liquids into the pond until the pond is <br /> formally closed. <br /> 15. Because monitoring data for the WildRose Winery are not available, typical winery wastewater <br /> data are presented. Compound concentrations in winery wastewater are the highest during the <br /> crush season, typically in the following ranges: <br /> Compound Units Concentration Range' <br /> pH pH units 2.5 -9.5 <br /> Dissolved Oxygen mg/1 0.5 -8.5 <br /> Biochemical Oxygen Demand(BOD5)? mg/1 500- 12,000 <br /> Chemical Oxygen Demand(COD) mg/1 800- 15,000 <br /> Grease mg/I 5 -30 <br /> Settleable Solids mg/l 25 - 100 <br /> Nonfilterable Residue mg/l 40- 800 <br /> Volatile Suspended Solids mg/l 150-700 <br /> Total Dissolved Solids (TDS) mg/1 80-2,900 <br /> Nitrogen mg/1 1 -40 <br /> Nitrate (as Nitrate) mg/1 0.5 -4.8 <br /> Phosphorous mg/1 1 - 10 <br /> Sodium mg/l 35 -200 <br /> Alkalinity(CaCO3) mg/1 40-730 <br /> Chloride mg/l 3 -250 <br /> Sulfate mg/l 10 - 75 <br /> Typical chemical analyses of winery wastewater from Summit Engineering,Process Wastewater <br /> Management System,Design Criteria and Calculations, 5 June 1998. <br /> 2 Five-day,20°Celsius Biochemical Oxygen Demand. <br /> C:TP j.FdwkSitaMW R..N .os_dR W k.doc <br />