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. • i <br /> MONITORING AND REPORTING PROGRAM <br /> CITY OF MANTECA <br /> SAN JOAQUIN COUNTY -2- <br /> Sampling I I <br /> Constituents Units Type of Sample Frequency <br /> Bioassay(1) % Survival Grab Every Two <br /> (96-hr. static) Weeks <br /> Total Coliform MPN/100 ml Grab Daily <br /> Organisms <br /> Chlorine Residual (1) mg/l Grab Daily <br /> Flow MGD Cumulative Continuous <br /> Oil & Grease(1) mg/1 Grab Weekly <br /> Nitrates mg/l Grab Weekly <br /> Only or discharge to surface waters <br /> HOLDING POND MONITORING <br /> Sampling <br /> Constituents Units Type of Sample Frequency <br /> Dissolved Oxygen mg/1 Grab Weekly <br /> TREATMENT PLANT SLUDGE <br /> A representative composited sample of the sludge shall be obtained semi-annually <br /> and analyzed for EPA priority pollutant metals and organics. Total metals shall <br /> be determined and reported as mg/kg on a dry weight basis. Reports shall be due <br /> on the 15th day of the month following the month analyses are performed. <br /> RECEIVING WATER MONITORING <br /> All receiving water samples shall be grab samples. Receving water samples shall <br /> be taken from the following: <br /> Station Description <br /> R-1 100 feet (30.5 meters) upstream from the point of discharge <br /> R-2 500 feet (152.4 meters) downstream from the point of discharge <br /> R-3 1 mile (1.6 kilometers) downstream from the point of discharge <br /> R-4 2 miles (3.2 kilometers) downstream from the point of discharge <br />