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MONITORING AND REPORTING PROGRAM ORDER NO. -2- RJM ENTERPRISES,BROWNS LAKE RANCH,AND RIVERCREST VINEYARDS,INC. SAN JOAQUIN COUNTY Freeboard Feet Measurement Monthly Monthly BODS mg/1 Grab Monthly Monthly. Nitrates as Nitrogen mg/1 Grab Monthly Monthly- Total Dissolved Solids mg/1 Grab Monthly Monthly GROUNDWATER MONITORING Groundwater samples shall be collected from each groundwater monitoring well in accordance with the approved Groundwater Monitoring Workplan. Each groundwater monitoring well shall be monitored at least for the following: Constituents Units _Type of Sample Sampling and Reporting Frequency Groundwater Elevation 0.01 feet Measurement Quarterly Volatile Organic Compounds' µg/l Grab Quarterly Nitrates as Nitrogen mg/l Grab Quarterly Total Dissolved Solids mg/1 Grab Quarterly Standard Minerals' mg/l Grab Semi-Annual Specific Conductivity µmhos/cm Grab Quarterly PH pH units Grab Quarterly ' Standard Minerals shall include the following compounds: Calcium,Magnesium, Sodium, Chloride,Nitrate, Sulfate,Total Alkalinity(including alkalinity_series),and Hardness. ' Volatile Organic Analysis to be performed by EPA Method 8010 or other analytical method approved by Board staff. REPORTING In reporting monitoring data, the Discharger shall arrange the data in tabular form so that the date, sample type (e.g., effluent, pond, groundwater well, etc.), and reported analytical result for each sample are readily discernible. The data shall be summarized in such a manner to clearly illustrate compliance with waste discharge requirements and spatial or temporal trends, as applicable. The results of any monitoring done more frequently than required at the locations specified in the Monitoring and Reporting Program shall be reported in the next scheduled monitoring report. As required by the California Business and Professions Code Sections 6735, 7835, and 78')5. all groundwater monitoring reports shall be prepared under the direct supervision of a registered professional engineer or geologist and signed by the registered professional. A. Monthly Monitoring Reports Monthly reports for effluent and holding pond shall be submitted to the Regional Board by the 30" day of the following month. Monthly reports for the months of March, June, September, and December may be submitted as part of the Quarterly Monitoring Report, if desired.