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� <br /> GEOMATRIX <br /> TABLE 3 <br /> SAMPLING AND ANALYSIS PLAN <br /> Lathrop Facility <br /> San Joaquin County, California <br /> Depth-Discrete Quality Assurance Samples <br /> Nleasurement/Anal tet Method Groundwater Monitorin Wells° Production Wells5 Travel Blank Equipment Blank Du licate <br /> Field Measurement° <br /> Depth to Water Field Meter 18 2 per 9 borings) 7 1 per 7 wells __6 -- -- 4 1 per da <br /> Electrical Conductance Field Meter 18 7 2 1 per 2 wells -- -- 4 <br /> H Field Meter 18 7 2 -- -- 4 <br /> Temperature Field Meter 18 7 2 -- - 4 <br /> Dissolved Oxygen Field Meter 18 7 1 2 - -- 4 <br /> Oxidation-Reduction Potential Field Meter 18 7 2 -- -- 4 <br /> Dissolved COC <br /> Total Dissolved solids EPA 160.1 18 7 2 - 4(l per da ) 4(1 per day) <br /> Ammonia(as N) EPA 350.1 18 7 2 -- 4 4 <br /> Bicarbonate&Carbonate EPA 2320B 18 7 2 - 4 4 <br /> Calcium EPA 200.7 18 7 2 -- 4 4 <br /> Chloride EPA 300 18 7 2 4 4 <br /> Magnesium EPA 200.7 18 7 2 - 4 4 <br /> Nitrate(as N) EPA 300 18 7 2 -- 4 4 <br /> Phosphate EPA 365 18 7 2 -- 4 4 <br /> Sodium EPA 200.7 18 7 2 4 4 <br /> Sulfate EPA 300 18 7 2 -- 4 4 <br /> Anion-Cation Balance 1 18 1 7 2 -- 4 4 <br /> Organic COC and Natural Attenuation <br /> Sulfolane APPL Method -- 7 -- -- 1 1 per 7 wells) 1 1 per 7 wells) <br /> EDB/DBCP EPA 8011 -- 7 -- 1 1 1 <br /> Total Alkalinity SM 2320b - 7 -- -- -- 1 <br /> Dissolved Manganese EPA 200.7 7 - -- - 1 <br /> Dissolved Iron EPA 200.7 -- 7 -- - -- 1 <br /> Dissolved Organic Carbon EPA 415.1 -- 7 -- -- -- 1 <br /> 1. COC-constituents of concern;ammonia and nitrate as nitrogen(as N);EDB-ethylene dibromide;DBCP-1,2-dibromo,3-chloropropane. <br /> 2. EPA-U.S.Environmental Protection Agency;APPL-Agricultural and Priority Pollutants Laboratory,Inc.;SM-Standard Method. <br /> 3. Depth-discrete groundwater samples will be collected at approximately_and_feet below ground surface from borings B-1 through B-9(Figure 3). Depending upon the <br /> CPT screening for resistivity,additional deeper groundwater samples may be collected for field measurements and dissolved COC analyses. <br /> 4. One groundwater sample will be collected from LP-I through LP-7 and PW-48 for field measurements,dissolved COC analyses,and organic COC analyses. <br /> 5. One groundwater sample will be collected from the domestic and backup supply wells(Figure_)for field measurements and dissolved COC analyses. <br /> Field measurements will be recorded after field parameters stabilize and immediately prior to sampling. <br /> 6. "--'-no analysis. <br /> 1:\6000s\6741.000\Archive\6741-14.x Is <br />