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WASTE DISCHARGE REQUIREMENTS ORDER NO. 5-00-182 2_ R.LAWSON ENTERPRISES dba WILDROSE VINEYARDS SAN JOAQUIN COUNTY Constituents Units Type of Sample Sampling Frequency Reporting Frequency Sulfate mg/l 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 Tyne of Sample Sampling and Reporting Frequency Groundwater Elevation 0.01 feet Measurement Quarterly Nitrates as Nitrogen mg/1 Grab Quarterly Total Dissolved Solids mg/l Grab Quarterly Volatile Dissolved Solids mg/l Grab Quarterly Specific Conductivity µmhos/cm Grab Quarterly pH pH units Grab Quarterly Standard Minerals' mg/1 Grab Annual Standard Minerals shall include the followingcompounds: Calci mp um,Magnesium, Sodium, Chloride,Nitrate,Sulfate, Total Alkalinity(including alkalinity series),and Hardness. Z 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 7835.1, all groundwater monitoring reports shall be prepared under the direct supervision of a California 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 1st day of the second month following the end of the reporting period(i.e. the January monthly report is due by 1 March). Monthly reports for the months of March, June, September, and December may be submitted as part of the Quarterly Monitoring Report, if desired.