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~. 2.6 Ground Water Monitoring <br />A water quality monitoring program has been established to monitor the effects of <br />the McClave Canyon and Munger Canyon mines on ground water in the area. The <br />ground water monitoring program will consist of the following observations, <br />measurements and sampling: <br />1. Quarterly monitoring of wells, GW-1, GW-3 and GW-6 for Static Water Level, <br />pH, Temperature, and Specific Conductance. <br />2. Water quality sampling of mine water discharges as required by CDPS permit. <br />3. Monitoring of all non-seep inflows into the mine to include source, quantity, <br />duration and quality (pH, Electrical Conductance, and Temperature). <br />4. Monitor quantities of water discharged from the mine, consumed in the mine, <br />and imported for use in the mine. <br />Results of the quarterly ground water monitoring shall be submitted to the Division <br />immediately after data collection and analysis. Results of additional monitoring will <br />be submitted to the Division in an annual hydrological report. The annual report will <br />detail inflows, discharges and consumption of water within the mine and shall be <br />structured around the normal "water year" (October 1 through September 30). <br />• Water samples will be collected with a bailer after the depth to water table has <br />been measured. All monitoring wells shall be pumped at least once a year and <br />prior to sample collection with an air lift or a bailer. <br />Monitoring well GW-6, as shown on Figure 2.3-5, was installed and has been <br />sampled as required prior to the construction of the Munger Canyon Waste Rock <br />Pile. Water quality samples shall be taken and water levels established quarterly. <br />Analysis will be for the above noted parameters. <br />On March 20, 1984 the Division approved a revision to sample GW-6 in Munger <br />Canyon only during the period of temporary cessation. Since GW-6 has been dry <br />since installation, well GW-3 was substituted and monitored quarterly for Static <br />Water Level, pH, Temperature and specific Conductance. <br />Monitoring well GW-7 is located at a location where the Operator once proposed a <br />coal mine waste disposal area. GW-7 was first noted to contain water in 1987. <br />The conductivity of the water was in excess of 100,000 umhos/cm. <br />The Location of GW-3 on Figure 2.3-5 changed slightly, based on GPS data <br />gathered February 10, 2006. Right of entry for GW-3 & GW-5 is presented in <br />Appendix C, Exhibit 3. GW-2, 4, 7 and 8 were sealed in 2007. <br />., <br />.. <br />RN-05 2-30 09/07 <br />