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MONITORING AND REPORTING PROGRAM 7 <br /> J. R. SIMPLOT COMPANY <br /> LATHROP, SAN JOAQUIN COUNTY <br /> TABLE IV. UNLINED STORMWATER POND MONITORING <br /> Report in Sampling <br /> Parameter/Constituent Units of Frequency <br /> Field Parameter <br /> Minimum Freeboard feet & tenths Quarterly <br /> Flow Estimate cfs Monthly <br /> Specific Conductivity µmhos/cm Monthly <br /> pHl std. pH units Monthly <br /> Monitoring Parameter <br /> Total Dissolved Solids mg/1 Monthly <br /> Chemical Oxygen Demand mg/1 Monthly <br /> Sodium mg/1 Monthly <br /> Chlorides mg/1 Monthly <br /> Sulfates mg/1 Monthly <br /> Nitrates mg/1 Monthly <br /> Phosphates mg/1 Monthly <br /> Mineralsz mg/1 Annually <br /> Metals3 mg/1 Annually <br /> Total Petroleum Hydrocarbons4 µg/1 Annually <br /> EPA Methods 601 &602 constituents5 µg/1 Annually <br /> Total &Fecal Coliform Organisms MPN/100 ml Annually <br /> Field measurements <br /> '-Those minerals listed under "Class 11 Surface Impoundment Monitoring" <br /> 3 Those metals listed under "Class 11 Surface Impoundment Monitoring" <br /> 4 EPA Method 8015 (modified) for gasoline and diesel <br /> 5 <br /> Report all peaks <br /> D. WATER QUALITY PROTECTION STANDARD <br /> The Water Quality Monitoring Plan shall address establishment of the water quality protection <br /> standard at this site. The Water Quality Protection Standard, as defined in Section 2550.2 of <br /> Chapter 15, shall consist of the constituents of concern, their concentration limits, the point(s) of <br /> compliance, and all water quality monitoring points. <br /> Constituents of concern shall include all waste constituents, reaction products, and hazardous <br /> constituents that are reasonably expected to be in or derived from waste contained in the surface <br /> impoundments. Concentration limits in each medium shall consist of background concentrations <br /> of each constituent of concern or concentrations greater than background pursuant to Section <br /> 2550.4 of Chapter 15. <br />