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<br />areas so that the quality of this water will not be impaired. GEC <br />Minerals, Inc. has not encountered any ground water probably due to <br />the fact that the area has been mined by underground methods in the <br />past. No significant amounts of ground water are expected from <br />within the mine workings themselves. If ground water or water is <br />encountered within the workings it will be contained, sampled and <br />treated if required prior to discharge into the existing drainage <br />system. In addition, surface water from disturbed areas is <br />contained and treated where required prior to discharge so as not <br />to adversely effect the downstream water quality. <br />Drainage control for the tipple area is designed to minimize the <br />contributions of sediment from this area to the downstream areas <br />outside of the permit area. All drainage control facilities are <br />inspected on a regular basis to ensure that they are working <br />properly. <br />• All sediment control structures and diversion ditches are shown on <br />the Hydrology Maps No. 8 and 9 for the mine area and the tipple <br />area respectively. This map also shows the water shed boundaries <br />which have been utilized in the design of these structures. GEC <br />Minerals, Inc. personnel inspect these structures on a regular <br />basis to ensure that they are in working order for their specified <br />purpose. <br />GEC Minerals, Inc. currently has contracted with J. F. Sato and <br />Associates under the Small Operator's Assistance Program to provide <br />additional hydrologic monitoring and design data for both surface <br />and sub-surface water. Monitoring and reporting of this data will <br />be provided at a later date when available. If during this investi- <br />gating additional surface and/or ground water control structures, <br />treating, etc. are required, GEC Minerals, Inc. plans to complete <br />these requirements in a timely manner. <br />• <br />2.05-41 <br />