Laserfiche WebLink
December 2013 <br />Mine Groundwater Quality Assessment ♦ 4 <br />3.0 WATER QUALITY EVALUATION <br />Groundwater quality downgradient of the Mine area is monitored at POC well MNGW -1. <br />The depth of the well was measured at 15 feet below land surface. Additional completion <br />details for the well, including screen interval, are not available. Per the GWMP, MNGW -1 <br />has been analyzed triannually for the indicator parameters listed in Table 1. Starting in <br />August 2013, monthly monitoring of MNGW -1 was initiated for an expanded list also <br />shown in Table 1. <br />Table 1 <br />MNGW -1 Monitoring Parameters <br />Triannual Monitoring Parameters <br />Iron, Dissolved <br />Zinc, Dissolved <br />Manganese, Dissolved <br />pH, Field <br />Selenium, Dissolved <br />Specific Conductance, Field <br />Sulfate, Dissolved <br />Monthly Monitoring Parameters <br />Acidity, Total <br />Nitrogen, Nitrite <br />Alkalinity, Total <br />Potassium, Dissolved <br />Aluminum, Dissolved <br />Sodium, Dissolved <br />Calcium, Dissolved <br />Sulfate, Dissolved <br />Chloride, Dissolved <br />Zinc, Dissolved <br />Fluoride <br />pH, Field <br />Magnesium, Dissolved <br />Oxidation /Reduction Potential (ORP), Field <br />Manganese, Dissolved <br />Specific Conductance, Field <br />Nitrogen, Nitrate I <br />Temperature, Field <br />3.1 HISTORICAL AND CURRENT ANALYTICAL DATA <br />As indicated in Henderson's July 11`'', 2013 letter, the following section presents a <br />preliminary assessment of water quality sampling in MNGW -1. These preliminary results <br />were used to develop recommendations for additional monitoring, including additional <br />monitoring locations as discussed in Section 4.0 (below). <br />AJAX Ltd ♦ 28828 Cedar Circle ♦ Evergreen, CO 80439 ♦ (303) 241 -2057 <br />Clear Creek Associates* 6155 E. Indian School Rd. ♦ Scottsdale, AZ 85251 ♦ (480) 659 -7131 <br />