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Cotter Corporation <br />Schwartzwalder Mine <br />Golden, Colorado <br />PROCEDURE <br />WATER MONITORING <br />Number: 3-4 <br />Page: 6 of 11 <br />Revision: 12 <br />Date: 4/9/2011 <br />TABLE 2: GROUNDWATER SAMPLING - ANALYTICAL PARAMETERS <br />Ground Water <br />Quality Parameter I Unit <br />I Sample Field <br />RL _ Volume I Preservative _ Filtered <br />Total Dissolved Solids (TDS) <br />Total Suspended Solids (TSS) <br />Temperature (field measured) <br />Conductivity (field measured) <br />pH (field measured) <br />Alkalinity (total as CaCO3) <br />Bicarbonate (as HCO3) <br />Calcium <br />Chloride <br />Fluoride' <br />Magnesium <br />Potassium <br />Sodium <br />Sulfate <br />Nitrate+Nitrite <br />Phosphorus <br />mg/L <br />mg/L <br />'C <br />uS <br />S. U. <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg& <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />10 <br />4.0 <br />1.0 <br />1.0 <br />0.10 <br />3.0 <br />0.1 <br />0.10 <br />0.10 <br />0.10 <br />5.0 <br />500mL <br />1 Liter <br />Field measured <br />Field measured <br />Field measured <br />500mL <br />500mL <br />250mL <br />500mL <br />500m1 <br />250m1 <br />250mL <br />250mL <br />500m1 <br />0.1 <br />250mL <br />0.01 <br />L <br />250mL <br />Cool to 4'C <br />Cool to 4'C <br />No <br />No <br />No <br />Cool to 4 °C <br />Cool to 4 °C <br />H N O 3 <br />Cool to 4 °C <br />Cool to 4 °C <br />HNO <br />HN O3 <br />HN <br />Cool to 4 °C <br />H2SO4& Cool to 4 °C <br />H & Cool to 4°C <br />Yes <br />No <br />No <br />No <br />No <br />*krlone <br />No <br />No <br />Yes <br />No <br />No <br />Yes <br />Yes <br />Yes <br />No <br />No <br />No <br />mgt <br />mgR_ <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg /L <br />mg/L <br />0.001 <br />0.001 <br />0.1 <br />0.001 <br />0.001 <br />0.03 <br />0.005 <br />0.005 <br />0.0001 <br />0.00005 <br />0.0002 <br />Aluminum <br />Antimony <br />Arsenic <br />Boron <br />Copper <br />Chromium <br />Iron <br />Lead <br />Manganese <br />Mercury <br />Silver <br />Thalium <br />Zinc <br />mg/L <br />0.20 <br />mg/L 0.005 <br />250mL <br />H N O 3 <br />HNO <br />HNO <br />HN O3 <br />HN O3 <br />HNO <br />HNO <br />HNO3 <br />H <br />HNO <br />HNO <br />HNO <br />H NO 3 <br />No <br />No <br />No <br />No <br />No <br />No <br />No <br />No <br />No <br />No <br />No <br />No <br />No <br />Motels DisaotVsd <br />Aluminum <br />Antimony <br />Arsenic' <br />Copper <br />Iron <br />Manganese <br />Molybdenum <br />Mercury' <br />Silver <br />Thallium <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg/L <br />mg& <br />mg/L <br />mg/L <br />mg& <br />mgR. <br />0.001 <br />0.001 <br />0.001 <br />0.03 <br />0.005 <br />0.005 <br />0.0001 <br />0.00005 <br />0.0002 <br />0.0002 <br />Uranium <br />Zinc <br />mgR, 0.20 <br />mg/L 0.005 <br />250mL <br />HNO <br />HNO <br />H NO 3 <br />HN O 3 <br />HN O3 <br />HNO <br />HNO <br />HNO <br />HNO <br />H N O 3 <br />HNO <br />H N O 3 <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Radionuclides Total <br />Gross Alpha <br />Gross Beta <br />pCi/L <br />pCi/L <br />2 Liter <br />HN O3 <br />HNO <br />No <br />No <br />Radionuclides' Obssolesd <br />Radium 226 <br />pCi/L 0.2 I 2 Liter HNO I Yes <br />Mine Refill Water Only <br />Page 18 of 19 <br />