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• 2.6 Ground Water Monitoring A water quality monitoring program has been established to monitor the effects of the McClane Canyon and Munger Canyon mines on ground water in the area. The ground water monitoring program will consist of the following observations, measurements and sampling: 1. Quarterly monitoring of wells, GW-1, GW-3 and GW-6 for Static Water Level, pH, Temperature, and Specific Conductance. 2. Water quality sampling of mine water discharges as required by CDPS permit. 3. Monitoring of all non-seep inflows into the mine to include source, quantity, duration and quality (pH, Electrical Conductance, and - - _ _ Te~erature)._ ~~ . -~_~_~___--_-- _--- -- 4. Monitor quantities of water discharged from the mine, consumed in the mine, and imported for use in the mine. Results of the quarterly ground water monitoring shall be submitted to the Division immediately after data collection and analysis. Results of additional monitoring will be submitted to the Division in an annual hydrological report. The annual report will detail inflows, discharges and consumption of water within the mine and shall be structured around the normal "water year" • (October 1 through September 30). Water samples will be collected with a bailer after the depth to water table has been measured. All monitoring wells shall be pumped at least once a year and prior to sample collection with an air lift or a bailer. Monitoring well GW-6, as shown on Figure 2.3-5, was installed and has been sampled as required prior to the construction of the Munger Canyon Waste Rock Pile. Water quality samples shall be taken and water levels established quarterly. Analysis will be for the above noted parameters. On March 20, 1984 the Division approved a revision to sample GW-6 in Munger Canyon only during the period of temporary cessation. Since GW-6 has been dry since installation, well GW-3 was substituted and monitored quarterly for Static Water Level, pH, Temperature and specific Conductance. Monitoring well GW-7 is located at a location where the Operator once proposed a coal mine waste disposal area. GW-7 was first noted to contain water in 1987. The conductivity of the water was in excess of 100,000 umhos/cm. The Location of GW-3 on Figure 2.3-5 changed slightly, based on GPS data gathered February 10, 2006. Right of entry for GW-3 & GW-5 is presented in Appendix C, Exhibit 3. GW-2, 4, 7 and 8 will be sealed in 2007. Permit Mu 2-30 10/06