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� • <br /> MONITORING AND REPORTING PROGRAM -5- <br /> J. R SIMPLOT COMPANY <br /> LATHROP, SAN JOAQUIN COUN'T'Y <br /> weather and minimum dry weather water level measurements and hydrogeologic information <br /> pertaining to this site. All springs, seeps, and creeks within 1,000 feet from the site shall be <br /> identified and used in preparing the ground water contour maps and/or flow nets. All parameters <br /> shall be graphed so as to show historical trends at each well. <br /> GROUND WATER MONITORING <br /> Report in Sampling <br /> Parameter/Constituent Units of Frequency <br /> Water elevation Feet & hundredths above MSL Quarterly <br /> Temperature °C Quarterly <br /> pH Std pH units Quarterly <br /> Specific Conductivity µmhos/cm Quarterly <br /> Volume purged from well gallons Quarterly <br /> Total Dissolved Solids mg/1 Quarterly <br /> Chlorides mg/l Quarterly <br /> Sodium mg/1 Quarterly <br /> Sulfates mg/l Quarterly <br /> Nitrates mg/1 Quarterly <br /> Ammonia mg/1 Quarterly <br /> Phosphates : mg/1 Quarterly <br /> Chemical Oxygen Demand nig/' Annually <br /> Minerals' mg/l Annually <br /> Metals? mg/1 Annually <br /> EPA Methods 8010 & 8020'constituents3 lig/1 Annually <br /> ' Those minerals listed under "Class H Surface Impoundment Monitoring" <br /> 2 'fhose metals listed under "Class H Surface impoundment Monitoring" using dissolved metals <br /> analyses <br /> 3 Report all peaks ` <br /> 6. Class H Surface Impoundment Monitoring <br /> The Class H Surface Impoundments shall be sampled and analyzed as specified in the table below. <br /> Class H surface impoundment monitoring reports may be submitted with the corresponding quarterly <br /> ground water monitoring reports. <br />