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DRAFT [TENTATIVE] WASTE DISCHARGE REQUIREMENTS ORDER R5-2023-OOXX 29 <br /> FORWARD, INC. <br /> FORWARD LANDFILL <br /> SAN JOAQUIN COUNTY <br /> AMW- AMW- AMW- AMW- AMW- AMW- WQO <br /> Constituent Units 37S 40S 41S 44 45 46 <br /> UG UG UG DG DG (DG) (reference) <br /> NO3 mg/L 3.6 0.43 0.22 11 10 10 10 <br /> NO2 mg/L NA NA NA NA NA NA 1 <br /> Total Mn ug/L < 5 520 710 < 5 12 93 50 <br /> Total As ug/L 6.8 9.6 9 4.4 4.8 4.4 10 <br /> Total Fe ug/L < 25 < 25 < 25 < 25 < 25 < 25 300 <br /> Notes: <br /> 1. Concentrations of Total Mn, Total As, Total Fe for all groundwater monitoring <br /> wells above were derived from a single sampling event, 30 August 2020, <br /> which was the only data available. <br /> 2. Data that was unavailable have been noted as NA. <br /> 3. See Glossary for definitions of terms and abbreviations in table. <br /> 101. A summary of effluent quality compared to upgradient (AMW-37S, AMW-40S, <br /> and AMW-41 S) and downgradient (AMW-44, AMW-45, and AMW-46) <br /> groundwater quality is presented in Table 7. <br /> Table 7—Data Comparison <br /> Constituent Units Effluent Upgradient Downgradient WQO (reference) <br /> Groundwate Groundwater <br /> r <br /> TDS mg/L 14,761 360 559 450 (from Basin <br /> Plan) <br /> Total N m /L 1,762 NA NA 10 <br /> TKN m /L NA NA NA None <br /> NO3 mg/L NA 2.1 10 10 <br /> NO2 m /L NA NA NA 1 <br /> Total Mn ug/L NA 411 35 50 <br /> Total As u /L NA 8.5 4.5 10 <br /> Total Fe ug/L NA < 25 < 25 300 <br /> Notes: <br /> 1. Effluent concentrations were determined based on the average of 2014 – <br /> 2020 data submitted via Cannery Waste Land Application Area Monitoring <br /> Report. <br /> 2. Data that was unavailable have been noted as NA. <br /> 3. See Glossary for definitions of terms and abbreviations in table. <br />