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II. WATER QUALITY SAMPLING <br />• Sampling of subsurface water from monitoring wells was conducted <br />using a one liter PVC bailer. Five hailer volumes were typically <br />removed prior to sampling of the well water. <br />SMW-1, AMW-1, FPW, 96 and 122 are field and lab sampled quarterly. <br />AMW-2 is also checked but remains dry at this time. The <br />parameters monitored are as follows: <br />Calcium-dissolved <br />Iron-dissolved <br />Magnesium-dissolved <br />Manganese-dissolved <br />Molybdenum-dissolved <br />Sodium-dissolved <br />Alkalinity, total (as CAC03 to pH 4.5) <br />Carbonate (as COg) <br />Hardness (as CACO33) <br />Bicarbonate (as HC03) <br />pH (pH units) <br />Specific conductance (mmhos/cm) <br />Lead-dissolved <br />Selenium-dissolved <br />Total dissolved solids (at 180°C) <br />Chloride <br />Sulfate (as S04) <br />SAR <br />• Wellsite readings of pH, EC, temperature (°C) and water level <br />are recorded. Water levels are measured from top of casing and <br />recorded prior to bailing. <br />Electrical conductivity is measured in units of micro siemens per <br />cm. The conductivity meter used measures the electrical <br />conductivity at the sample temperature, which is set automatically <br />by the meter. The pH meter is calibrated each quarter by testing <br />with a standard solution of 7.0 pH. <br />• <br />Page 7 <br />