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DRAFT [TENTATIVE] WASTE DISCHARGE REQUIREMENTS ORDER R5-2023-00XX 33 <br />FORWARD, INC. <br />FORWARD LANDFILL <br />SAN JOAQUIN COUNTY <br />Compliance with the Antidegradation Policy for Land Application of Cannery <br />Waste <br />111.State Water Board Resolution 68-16, Policy with Respect to Maintaining High <br />Quality Waters of the State (Antidegradation Policy), prohibits degradation of <br />high-quality groundwater unless it has been demonstrated that such degradation: <br />a.Will be consistent with the maximum benefit to the people of the State of <br />California; <br />b.Will not unreasonably affect present and anticipated future beneficial uses <br />of such water; and <br />c.Will not result in water quality less than that prescribed in State Water <br />Board and Central Valley Water Board policies (i.e., violation of one or <br />more water quality objectives (WQOs)). <br />Discharges that may degrade high quality groundwater must be subject to waste <br />discharge requirements that will result in the best practicable treatment or control <br />(BPTC)of the discharge necessary to assure that pollution or nuisance will not <br />occur and the highest water quality consistent with the maximum benefit of the <br />people of the State will be maintained. <br />112.The Discharger has monitored groundwater quality at the Facility since 2005. <br />Compliance with the Antidegradation Policy is therefore based on any available <br />groundwater data collected since 2005. <br />113.For the purposes of this Order, constituents in the effluent with the potential to <br />degrade groundwater and/or affect beneficial uses include: <br />a.TDS <br />b.Nitrate as nitrogen; and <br />c.Iron and manganese. <br />114.A summary of effluent quality compared to downgradient (AMW-44, AMW-45, <br />AMW-46, and AMW-14) groundwater quality is presented below. Effluent <br />concentrations are separated into cannery rinsate waste (mg/L) and residual <br />waste (mg/kg). The averages for constituents in effluent are calculated using <br />data from 2018 through 2021, after the 2017 Nutrient Management Plan was <br />implemented. Annual averages for groundwater were calculated using data <br />collected between 2020 through 2023. For non-detect concentrations, half of the <br />reporting limit was used for averaging purposes. For samples that were detected, <br />but less than the reporting limit, the reporting limit value was used.