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WASTE DISCHARGE REQUIREMENTS ORDER NO. R5-2014-0006 -20- <br />FORWARD INC. AND REPUBLIC SERVICES INC. <br />FORWARD CLASS II LANDFILL <br />SAN JOAQUIN COUNTY <br /> <br /> <br />b. W aste will be spread thinly, no more than 3 inches deep, to ensure complete <br />drying within five days. <br />c. W aste will be turned twice daily with a cultivating device to facilitate drying. <br />83. Groundwater degradation with nitrogen species such as ammonia and nitrate can be <br />prevented by minimizing percolation below the root zone of crops and ensuring that the total <br />nitrogen load does not exceed crop needs over the course of a typical year. Where there is <br />sufficient unsaturated soil in the vadose zone, excess nitrogen can be mineralized and <br />denitrified by soil microorganisms. <br />84. Excess BOD is developed by excessive waste application that depletes oxygen in the vadose <br />zone creating anoxic conditions. At the surface, this can result in nuisance odors and fly- <br />breeding. When insufficient oxygen is present below the ground surface, anaerobic decay of <br />organic matter can create reducing conditions that convert naturally occurring metals from <br />insoluble to a more soluble reduced form. This condition can be exacerbated by acidic soils <br />and excess moisture. If reducing conditions do not reverse as the percolate moves down <br />through the vadose zone, the dissolved metals (primarily iron, manganese and arsenic) can <br />degrade shallow groundwater quality. Many aquifers contain enough dissolved oxygen to <br />reverse the process. <br />ANTIDEGRADATION ANALYSIS FOR LAND APPLICATION OF CANNERY WASTE <br />85. State Water Resources Control Board Resolution 68-16 (“Policy with Respect to Maintaining <br />High Quality Waters of the State”) (hereafter Resolution 68-16) prohibits degradation of <br />groundwater unless it has been shown that: <br />a. The degradation is consistent with the maximum benefit to the people of the state. <br />b. The degradation will not unreasonably affect present and anticipated future beneficial <br />uses. <br />c. The degradation does not result in water quality less than that prescribed in state and <br />regional policies, including violation of one or more water quality objectives, and <br />d. The discharger employs best practable treatment or control (BPTC) to minimize <br />degradation. <br />86. Degradation of groundwater by some of the typical waste constituents associated with <br />discharges of decompostable organic waste, such as cannery waste is not consistent with <br />the maximum benefit to the people of the state when there are other viable means of <br />disposal that would have less environmental impact, such as use for livestock feed. <br />87. Groundwater quality has been monitored at the site since 1988. Based on the data <br />available, it is not possible to determine pre-1968 groundwater quality. Therefore, <br />determination of compliance with Resolution 68-16 for this facility must be based on existing