Laserfiche WebLink
<br />sss <br />The Chimney Rock Mine has conducted exhaustive research relative to historic information <br />regazding seasonal variations of flow on Stollsteimer Creek. Among the agencies and <br />individuals contacted, records do not exist which describe minimum, maxlmufi and average <br />flows and other information needed to identify seasonal variations. Individuals in the area <br />have indicated that the creek varies from no flow to flows cresting at bank height depending <br />on the amount of precipitation received during the year and the season (i.e.,spring/peak <br />runoff). In an endeavor to commence collecting this data in accordance with the <br />requirements of this Section, the Chimney Rock Mine implemented a surface flow measuring <br />program during the month of October 1980. The Chimney Rock Mine has continued to <br />monitor flows in order to describe minimum, maximum and average flows of Stollsteimer <br />Creek to identify critical low flow and peak discharge rates. In addition, such flow <br />monitoring will continue on a quarterly basis throughout surface reclamation of disturbed <br />areas, as approved by TR-24. Such sampling will be completed at stations S-1, S-2, and S-3 <br />as identified on the Regional Hydrology Map (Map 4). <br />Analysis performed in the field include those for flow, pH, conductivity and temperature. <br />Laboratory analysis includes tests for trace metals, physical parameters and chemical <br />parameters. All information collected to date has been submitted to the CMLRD in annual <br />hydrologic monitoring reports. <br />Surface water quality overall is fair. Calcium, magnesium, potassium, selenium and sodium <br />are fairly high, although consistent (with slight variations) with the quality results exhibited <br />for shallow wells W-1 and W-5. Surface water is also relatively hard. Hardness results <br />reported in milligrams per liter of calcium carbonate were recorded at levels from 479 to <br />513. These waters are also quite high in sulfate. <br />Comparison of these results to the sample results obtained from overburden and inner <br />burden sampling indicate that toxicity problems do not exist within those materials and, as <br />such, the surface mining operations have not caused the surface waters to be contaminated. <br />This is further exemplified by comparing the results of upstream sampling to downstream <br />sampling results. The recorded existence of the various trace metals, for example actually <br />improves slightly downstream from the surface mining operations. (See mean values for <br />aluminum, iron, and manganese at stations S-1 and S-3 in the 1994 AHR). <br />Surface water flows were sampled at stations S-1, S-2, and S-3. Permanent cross sections <br />and depth gauges have been installed at these stations. Analysis have been performed in <br />order to adequately describe surface flows as previously discussed. Results and discussion <br />of surface flows are provided in the annual hydrologic monitoring reports. <br />Alternative Water Supplv Information <br />Surface coal mining operations have been conducted at the Chimney Rock Coal Mine Site <br />since November 1976. Such operations required the use of water, both groundwater and <br />surface water. However, since mining has ceased and the disturbed azeas have been <br />reclaimed, no further use of water will be necessary. in the event that surface water <br />resources are impacted prior to bond release, the landowner has 8 cfs of adjudicated surface <br />water which will be used for alternative water supply. <br />2.04-18b Rev. 12/01/95 <br />