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. 2005 AHR McGlane & Munger Canyon Mines Page 5 Groundwater Table 5 shows the results of groundwater sampling during the water year. The average static water level for the baseline years of 1981 and 1986 is also shown. Results of quality sampling are consistent with the results from previous years. GW-4 in close proximity to a hay field that is irrigated during dry periods and in danger of being eroded with an oxbow has been replaced with GW-3. GW-3 is located adjacent to the road south of GW-4 and should be outside of the influence of the irrigation of the hay field. Refer to Figure 4.2-2 of the McGlane Canyon Permit. The Division of Minerals & Geology has approved this substitution. Pond Discharges There was one discharge from each of the Munger and McGlane sediment ponds during the water year. The sediment fences at McGlane, Munger Canyon and Loma were maintained as necessary. Discharge monitoring from the sediment ponds and mines are regulated by the Colorado Discharge Permit System Numbers CO-0038342 (McGlane) and CO-0040827 (Munger). Copies of Quarterly Discharge Monitoring Reports have been provided, under separate cover, to the DMG at the same schedule required by the CDPS Permit. They are included in this report by reference. McGlane Creek Temporary Diversion The Operator placed four wooden gabions in the McGlane Creek channel during 1997 to ensure the channel would remain stable. The gabions were to provide a solid place in the channel bottom to limit any further erosion. In 2004 a re-survey was conducted and the data and inspection observations show there has been significant erosion subsequent to the 1997 gabion installation. Future high flow events may result in additional channel scour and side-cutting erosion. Portions of the diverted channel appeared to be unstable and further erosion may be likely. The most effective long term solution to the erosion problem was determined to be restoring McGlane Creek to it's original flow configuration. Therefore, the operator plans to install a 48" culvert ("P") under the haul road in order to reconnect upper McGlane Creek to it's original lower segment. Culvert "P" should be installed during the next reporting period. Probable Hydrologic Consequences The mines will have negligible effect upon the hydrologic regime of East Sait Creek. The area disturbed is small, sedimentation and surface water systems have functioned well for over ten years. The inherent poor quality of surface water in the area is the result of site specific environmental factors not from any impact caused by the mines. Most storm events that have exceeded the design criteria required by the Division of Minerals & Geology have not been a problem for the system to handle. The effect that the mine has on the groundwater hydrology of East Salt Creek has not been detected.