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MONITORING AND REPORTING PROGRAM -4- <br /> CITY OF MANTECA AND CITY OF LATHROP <br /> WASTEWATER QUALITY CONTROL FACILITY <br /> SAN JOAQUIN COUNTY <br /> WATER SUPPLY MONITORING <br /> A sampling station shall be established where a representative sample of the <br /> municipal water supply can be obtained. Samples shall be collected at the same <br /> time as influent and effluent samples for the same period. The following shall <br /> constitute the water supply monitoring program. <br /> Sampling <br /> Constituents Units Freauencv <br /> Standard Minerals' mg/l Yearly <br /> - Standard minerals include Total Dissolved Solids, Electrical Conductivity, <br /> Chloride, Sulfate, Nitrate, Bicarbonate Alkalinity, Carbonate Alkalinity, <br /> Calcium, Magnesium, Potassium, Sodium, pH, and Hardness. <br /> REPORTING <br /> In reporting the monitoring data, the Discharger shall arrange the data in <br /> tabular form so that the date, the constituents, and the concentrations are <br /> readily discernible. The data shall be summarized in such a manner to illustrate <br /> clearly the compliance with waste discharge requirements. <br /> Monthly monitoring reports shall be submitted to the Regional Board by the <br /> 15th day of the following month. <br /> The results of any monitoring done more frequently than required at the locations <br /> specified in the monitoring and Reporting Program shall be reported to the <br /> Board. <br /> The Discharger shall submit a report to the Board by 30 January of each year. <br /> The report shall contain both tabular and graphical summaries of the monitoring <br /> data obtained during the previous year. In addition, the Discharger shall <br /> discuss the compliance record and the corrective actions taken or planned which <br /> may be needed to bring the discharge into full compliance with the waste <br /> discharge requirements. <br /> The Discharger shall implement the above monitoring program on the effective date <br /> of this Order. <br /> Ordered by <br /> WILLIAM H. CROOKS, Executive fficer <br /> 29 May 1991 <br /> (liate) <br /> AMM:3/14/91 <br />