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v 1"/ <br /> MONITORING AND REPORTING PROGRAM <br /> CITY OF TRACY <br /> SAN JOAQUIN COUNTY -2- <br /> Sampling <br /> Constituents Units Type of Sample Frequency <br /> Total Dissolved Solids mg/l Grab Monthly <br /> Specific Conductivity* umhos/cm Grab Monthly <br /> @25°C <br /> Standard Minerals mg/l Grab Yearly <br /> PH pH Units Grab Daily <br /> Bioassay % Survival Grab Weekly <br /> Total Coliform MPN/100 ml Grab Daily <br /> Organisms <br /> Chlorine Residual mg/l Grab Daily <br /> Flow mgd Continuous Daily <br /> Oil and Grease mg/l , lbs/day 24 hr. Composite Weekly <br /> *Standard Minerals include calcium, magnesium, hardness, sodium, potassium, <br /> alkalinity, sulfate, chloride, boron, nitrate, dissolved solids, specific <br /> conductance. <br /> HOLDING POND MONITORING <br /> Constituents Units ape of Sample Frequency Location <br /> Dissolved Oxygen mg/l Grab Weekly Each Pond <br /> RECEIVING WATER MONITORING <br /> All receiving water samples shall be grab samples. Receiving water samples shall <br /> be taken from the following: <br /> Station Description <br /> R-1 Old River 500 feet (152 m) east or west from the point of discharge. <br /> R-2 Old River 500 feet (152 m) east or west from the point of discharge. <br /> R-3 Old River 5 miles (8 km) east or west from the point of discharge. <br />