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bold typeface presented in Table 4.9-12),based on availability of data and detection of the constituent in WQCF <br /> effluent. Monitoring data from these evaluation programs is summarized in Appendix D. <br /> Manteca WQCF Effluent Quality <br /> The Schedule A improvements(see Project Description Section 3.3, "Project Background and History")increased <br /> WQCF capacity to 7.5 mgd ADWF. Schedule B improvements increased the treatment capacity of the plant from <br /> 7.5 mgd to 9.87 mgd ADWF. Recent water quality monitoring data for the WQCF effluent are shown in Table <br /> 4.9-3. This data reflect implementation of the recent Schedule A and B improvements. <br /> Table 4.9-3 <br /> Existing Manteca WQCF Effluent Quality <br /> Constituent Units Project Effluent Quality' <br /> Biochemical Oxygen Demand(BOD) mg/1 15 <br /> Total Suspended Solids(TSS) mg/1 15 <br /> Total Coliform MPN/100 mL 23 <br /> Turbidity NTU 8 <br /> Settleable Solids mg/l 0.1 <br /> Chlorine Residual mg/1 0.01 <br /> Oil and Grease mg/1 2.1 <br /> Aluminum µg/l- 150 <br /> Electrical Conductivity(EC) µmhos/cm 1100 <br /> Ammonia(as N) mg/1 2.1 <br /> Arsenic µg/l 12.5 <br /> Copper µg/l 9 <br /> Cyanide µg/l 7 <br /> Iron µg/l 47 <br /> Manganese µg/l 15 <br /> Methylene Blue Active Substances(MBAS) µg/l 160 <br /> Nitrate(as N) mg/1 10 <br /> Nitrite(as N) mg/l 1 <br /> Bis(2-ethylhexyl)phthalate µg/l 3.48 <br /> Bromodichloromethane µg/l 1.98 <br /> Dibromochloromethane µg/l 0.47 <br /> Mercury µg/l 0.028 <br /> 2,4,6-Trichlorophenol µg/1 3.28 <br /> ' Unless noted otherwise,all concentrations represent projected mean values taken from the 2007 City of Manteca WQCF Master Plan <br /> Update(Nolte 2006). <br /> 2 Concentration represents median value taken from analysis of WQCF effluent evaluated as part of the WQCF Special Studies <br /> Monitoring Program <br /> Source:LWA 2007 <br /> EDAW DER <br /> Hydrology and Water Quality 4.9-8 City of Manteca <br />