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• Lorencito Canvon Mine -Groundwater Technical ReOort <br />• <br />• <br />TABLE GW-4 <br />LORENCITO CANYON MINE <br />SAMPLE PARAMETERS AND METHODS <br />Parameter Method Detection Limit (mg/L) <br />pH EPA 150.1 0.01 (units) <br />Alkalinity (incl Bicarb, Carb.) EPA 310.1 2 <br />Conductivity EPA 120.1 1 (umhos) <br />TDS (incl. TDS Ratio & Calc.) EPA 160.1 10 <br />Chloride EPA 325.2 1 <br />Sulfate EPA 375.3 10 <br />Hardness, SAR, CAB Calculations n/a <br />Sum of Anions, Cations Calculations n/a <br />Nitrogen, Nitrite EPA 353.2 0.02 <br />Nitrogen, Nitrate EPA 353.2 0.02 <br />Nitrate/Nitrite EPA 353.2 0.02 <br />Nitrogen, Ammonia EPA 350.1 0.05 <br />Fluoride EPA 340.2 0.1 <br />Boron, Dissolved EPA200.7, ICP 0.01 <br />Calcium, Dissolved EPA 200.7 ICP 0.2 <br />Magnesium, Dissolved EPA 200.7 ICP 0.3 <br />Potassium, Dissolved EPA 200.7 ICP 0.3 <br />Sodium, Dissolved EPA 200.7 ICP 0.3 <br />Orthophosphate EPA 365.1 0.005 <br />Cyanide, Free EPA 335.3 0.1 <br />Thiocyanate SM 4500 M-CN 0.1 <br />Dissolved Metals <br />Aluminum EPA 200.7 ICP 0.03 <br />Antimony EPA 204.2 GFAA 0.002 <br />Arsenic EPA 206.2 GFAA 0.001 <br />Barium EPA 200.7 ICP 0.003 <br />Beryllium EPA 210.2 GFAA 0.0005 <br />Cadmium EPA 213.2 GFAA 0.0005 <br />Chromium EPA 200.7 ICP 0.01 <br />Groundwater.175\December 9, 1996 <br />