Laserfiche WebLink
Mounroin Coa! Company 1997 Annual Hydrology Report West Elk Mine <br />• Spring G-8 was discussed in the 1996 AHR since the spring historically (1983 through 1987) had <br />flow, but had ceased since monitoring was re-initiated. Spring G-7 showed the opposite flow <br />regime of G-8, i.e. historically dry, but flowing in WY96 and WY97. Since G-7 is located <br />downgradient of G-8, it is most likely that the source water that historically fed spring G-8 is <br />now emerging as G-7. <br />Spring Water Quality Data <br />In addition to regularly monitoring the flows of 37 springs, MCC collects extensive water quality <br />data on the springs. The chemistry of spring flows can change if mining has impacted the spring. <br />The tables in Appendix E have been prepazed to summarize the available data for all measured <br />pazameters. These tables provide minimum, average, and maximum concentrations under both <br />baseline and WY97 conditions. <br />Inspection of the data reveals that, in general, water quality concentrations during WY97 were <br />comparable to those in previous years. The available water quality data for TDS, total iron, and <br />total manganese were not adequate (due to insufficient flow for sampling) to provide an <br />indication on linkage to mining impacts. The available data indicated that there were no <br />deviations during WY97 from baseline conditions. Available water quality data indicate that <br />impacts to spring water quality due to mining have not occurred. <br />Stock Ponds <br />• Map 3 shows the locations of the stock ponds and U.S. Forest Service water resources relative to <br />[he B-Seam longwall panels. As [he map indicates, few of these resources were within the <br />influence of mining in WY96. As expected, no impacts were noted due to mining. <br />u <br />1-031.450 Page rig ( ater ngineers <br />