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MONITORING AND REPORTING PROGRAM ORDER NO. 2 <br />WILLIAM LONG, SCOTT LONG, AND <br />LONG RANCH, INC. <br />SAN JOAQUIN COUNTY <br />be reprgsentative of the various areas of discharge and any variance in soil type. A minimum of two <br />composite soil samples shall be collected from the discharge areas. Composite soil samples shall not <br />exceed 4 to 1 ratio. Each soil sample shall be collected and analyzed for the following compounds: <br />Compounds <br />Salinity <br />Nitrogen <br />Phosphorus <br />Potassium <br />Units <br />mg/kg <br />mg/kg <br />mg/kg <br />mg/kg <br />Sampling Frequency <br />Annual' <br />Annual 1 <br />Annual' <br />Annual' <br /> <br />Annual samples shall be collected prior to the onset of the rainy season. <br />GROUNDWATER MONITORING <br />Groundwater samples shall be collected for analysis after the monitoring well(s) has been adequately <br />purged. Purging is defined as either three well volumes or until stabilization of temperature, pH, and <br />electrical conductivity. <br />After installation and development, all monitoring wells shall be measured for depth to water and shall <br />be sampled and analyzed for baseline concentrations of general minerals (consisting of calcium, <br />magnesium, potassium, sodium, chloride, sulfate, nitrate, TDS, alkalinity series, pH, and hardness), <br />boron, phosphate, Total Kjeldahl Nitrogen, and ammonia. In addition, the sample from the upgradient <br />well shall be analyzed for a Nitrogen stable isotope ratio analysis for Nitrate (815N). Upon collection <br />and analysis of baseline groundwater samples, the following monitoring program shall be <br />implemented: <br />Compounds <br />Depth to Groundwater2 <br />Nitrate <br />TDS <br />Units <br />0.01 feet <br />mg/1 <br />mg/1 <br />Sampling Frequency' <br />Semi-Annual3 <br />Semi-Annual3 <br />Semi-Annual3 <br /> <br />1 The groundwater frequency may be reduced to annual, collected at the height of the dry season (summer), if that <br />after five years of monitoring, compound concentrations have not varied significantly from background. <br />2 A standard reference elevation (measured in feet mean sea level) fOr each monitoring well point-of-measurement <br />shall be provided. Groundwater levels must be measured prior to sampling. <br />3 Semi-annual samples shall be collected at the height of the wet and dry seasons (i.e. winter and summer, <br />respectively). <br />In addition, the on-site supply well shall be sampled and analyzed during the first, third and fifth year <br />of monitoring. The groundwater sample shall be analyzed for the same compounds as listed in the <br />table above. Measurements for groundwater levels may be deleted if well head access is unavailable.