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MONITORING AND REPORTING PROGRAM ORDER NO. 2 <br /> RICHARD A. STAGNO, AND <br /> STAGNO'S MEAT COMPANY <br /> SAN JOAQUIN COUNTY <br /> DESIGNATED DISPOSAL AREA MONITORING - <br /> The Discharger shall monitor the soil within the designated disposal area to ascertain whether the <br /> nitrate-nitrogen loading in the cropland is in excess of that required by the crop. A composite soil <br /> sample shall be collected and analyzed for the following compounds: <br /> Compounds Units Sampling Frequency <br /> Salinity mg/kg Annual' <br /> Nitrogen mg/kg Annual' <br /> Phosphorus mg/kg Annual' <br /> Potassium mg/kg Annual' <br /> 1 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. hi addition, the sample from the upgradient <br /> well shall be analyzed for a Nitrogen stable isotope ratio analysis. Upon collection and analysis of <br /> baseline groundwater samples from each monitoring well, the following monitoring program shall be <br /> implemented: <br /> Compounds Units Sampling Frequency' <br /> Depth to Groundwater2 0.01 feet Semi-Annual' <br /> Nitrate mg/1 Semi-Annual' <br /> TDS mg/1 Semi-Annual' <br /> 1 The groundwater frequency may be reduced to annual,collected during the height of the dry season(summer), <br /> provided that after five years of monitoring, compound concentrations have not varied significantly from <br /> 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 during the height of the wet and dry seasons(i.e.winter and summer, <br /> respectively). <br /> c:tckwfilutagriculturetagwdn\stagno\stagnormp <br />