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Order No.•R5-2009-0097 - 4 <br /> Conditional Waiver of Waste Discharge Requirements for <br /> Small Food Processors and Small Wineries <br /> Within the Central Valley Region <br /> Wastewater Concentration Ran e <br /> Other Food <br /> Constituent Units Wineries Processors <br /> pH Std.units 2 to 11 5 to 9 <br /> Biochemical Oxygen Demand mg/L 300.to. 12,000 300 to 2,000 <br /> Total Dissolved Solids mg1L 80 to 6,000 r400 to-2,300 <br /> Total Nitrogen mg/L 1 to 50 1 to 150; <br /> 18. If food processing wastewater is applied'to crapped land or landscaped areas at <br /> reasonable hydraulic a.nd,nutrient loading rates, and in accordance with the conditions of <br /> this Order, there should be little potential for water'quality degradation. The nitrogen in <br /> the wastewater and some of the nutritive salts will be utilized. by the plants. In a well <br /> aerated mineral soil, the pH.will be buffered,.and.the biochemical oxygen demand will be <br /> reduced through microbial activity: Oxidation of organic matter is enhanced bywarm <br /> weather conditions, which are typical of the food processing season'in the Central Valley <br /> Region. Where process wastewater is used for irrigation, best rhanagement practices to <br /> prevent discharges of irrigation tailwater will protect surface water quality. <br /> 19. Residual solids and wastewater generated by food processing can-cause nuisance <br /> odors'and attract vectors if not properly,stored and/or discharged. However, use of best <br /> management practices,.such.asapplying wastewater and residual solids at agronomic <br /> rates, incorporating the residual solids, and minimizing the potential for standing water, <br /> will prevent nuisance conditions: <br /> 20. Water is in short supply in.some areas within the Central Valley Region, and food <br /> processors in those areas may practice water conservation measures, producing less <br /> wastewater than.the average for a particular food processing industry. Due to <br /> concentration effects, th.is wastewater may contain more BOD and/or nitrogen than <br /> described above. The'refore;-dischargers may.need to analyze.wastewater and residual <br /> solids.periodically to. determine reasonable nutrient and organic matter loading rates. <br /> 21. Some smaller food processors have determined that.it is more cost effective to store <br /> some or all of their wastewater in, a holding tank and then transport.the wastewater to an <br /> authorized disposal facility instead of discharging wastewater to land. There is. little <br /> potential for water quality degradation'associated with this method of wastewater <br /> disposal. However it is appropriate to require some monitoring to ensure that such <br /> wastes are transported by appropriately licensed haulers and discharged at <br /> appropriately permitted disposal facilities. <br /> 22. CWC Section 13269 provides, `Monitoring requirements shall be designed to support <br /> the development and implementation of the waiver program, including, but not limited to, <br /> verifying the adequacy and effectiveness of the waiver's conditions. In establishing <br /> monitoring requirements, the regional board may consider.the volume, duration, <br /> frequency, and constituents of the discharge; the extent and type of existing monitoring <br />