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MONITORING AND REPORTING PROGRAM NO. R5-2004-0028 5 <br /> NPDES NO. CA0081558 <br /> CITY OF MANTECA, CITY OF LATHROP AND DUTRA FARMS <br /> WASTEWATER QUALITY CONTROL FACILITY <br /> SAN JOAQUIN COUNTY <br /> RECEIVING WATER MONITORING <br /> All receiving water samples shall be grab samples. The date and time will be recorded with each <br /> sample. Receiving water monitoring shall include at least the following: <br /> Station Description <br /> R-1 100 feet upstream from the point of discharge <br /> R-2 500 feet downstream from the point of discharge <br /> R-3 1 mile downstream from the point of discharge <br /> R-4 2 mile downstream from the point of discharge <br /> Sampling <br /> Constituents Units Station Frequency <br /> River Flow cfs Footnote 1 Continuous' <br /> Direction of River Flow Footnote 1 Continuous' <br /> Dissolved Oxygen mg/1 R-1, R-2, R-3, R-4 Bi weekly' <br /> pH Number R-1, R-2, R-3, R-4 Bi weekly, <br /> Turbidity NTU R-1, R-2 Bi weekly, <br /> Temperature of (-C) R-1 Continuous <br /> R-2, R-3,R-4 Bi weekly, <br /> Electrical Conductivity @25°C umhos/cm R-1, R-2 Bi weekly' <br /> Fecal Coliform Organisms MPN/100 ml R-1, R-2 Bi weekly' <br /> Ammonia mg/1 R-1,R-2, R-3,R-4 Bi weekly <br /> Nitrate mg/1 R-1, R-2 Bi weekly' <br /> Nitrite mg/l R-1, R-2 Bi weekly' <br /> Total Chlorine Residual mg/1 R-1, R-2 Bi weekly, <br /> Aluminum, total ug/1 R-1, R-2 Quarterly <br /> Arsenic, total4 ug/1 R-1, R-2 Quarterly <br /> Copper, total4 ug/1 R-1,R-2 Quarterly <br /> Iron, total ug/1 R-1,R-2 Quarterly <br /> Manganese, total ug/1 R-1,R-2 Quarterly <br />