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M m <br /> C) Table 2-2 <br /> Summary of Impacts and Mitigation Measures <br /> C„ Significance Significance <br /> 3 Impacts Before Mitigation Measures After <br /> v Mitigation Mitigation <br /> 4.9-4: Effects of Proposed Project Discharge on Biochemical LTS No mitigation is necessary. LTS <br /> Oxygen Demand(BOD)Concentrations in Receiving <br /> Waters.The project is projected to reduce effluent BOD <br /> concentrations compared to the existing WQCF discharge <br /> concentrations and projected concentrations would be below the <br /> City's existing adopted NPDES effluent limitation,which has <br /> been established by the RWQCB to be protective of water <br /> quality.Therefore,this impact is considered less than <br /> significant. <br /> 4.9-5:Effects of Proposed Project Discharge on Biochemical LTS No mitigation is necessary. LTS <br /> Oxygen Demand(BOD)Concentrations in Receiving <br /> Waters.The project is projected to reduce effluent BOD <br /> concentrations compared to the existing WQCF discharge <br /> concentrations and projected concentrations would be below the <br /> City's existing adopted NPDES effluent limitation,which has <br /> been established by the RWQCB to be protective of water <br /> quality.Therefore,this impact is considered less than <br /> significant. <br /> 4.9-6:Effects of Proposed Project Discharges on Total LTS No mitigation is necessary. LTS <br /> Aluminum Concentrations in Receiving Waters.The <br /> proposed WQCF upgrades would be designed and operated to <br /> comply with the NPDES permit effluent limits for total <br /> p aluminum.Available science indicates that effluent limits <br /> T substantially greater than the proposed discharge concentrations <br /> Qunder the project would be sufficiently protective of the <br /> o beneficial uses of the San Joaquin River.Because the project's <br /> CD discharge concentrations of aluminum would be substantially <br /> o below discharge concentrations shown by available scientific <br /> C/, studies to be protective of water quality,the project would result <br /> in less-than-significant aluminum impacts. <br /> m <br /> 4.9-7:Effects of Proposed Project Discharges on Electrical LTS No mitigation is necessary. LTS <br /> 0 v Conductivity Concentrations in Receiving Waters.Because <br /> m the project would result in minor increases in EC in the San <br /> v Joaquin River at full buildout(27 mgd)and effluent <br /> Cn concentrations would be below established EC water quality <br /> M objectives during agricultural and nonagricultural seasons,the <br /> COD 55 <br /> LTS=Less than Significant S=Significant PS=Potentially Significant SU=Significant and Unavoidable <br />