Laserfiche WebLink
9 2.05 APPLICATION FOR PERMIT FOR SURFACE OR UNDERGROUND ACTIVITIES -- <br />MINIMUM REQUIREMENTS FOR OPERATION AND RECLAMATION PLANS. <br />2.05.6 Mitigation of Surface Coal Mining Operation Impacts. (Cont'd.) <br />(3) (b) (ii) (Cont'd.) <br />Concerning ponds, water quality samples are obtained if the ponds are discharging on an annual <br />basis with particular emphasis placed on the collection of samples during spring runoff. Collected <br />samples are analyzed for alkalinity as CACO bicarbonate as CACO carbonate as CACO <br />dissolved calcium, chloride, conductivity @ 25° C, pH, Hardness as CACO dissolved magnesium, <br />dissolved sodium, sulfate, SAR in water, TDS ratio (gray. /calc.), total dissolved solids, and total <br />suspended solids. <br />As the mine plan develops, The operator will revise Volume 4, Table 2 as necessary with technical <br />revisions to ensure that the appropriate pond monitoring is conducted if mining progresses into new <br />areas. Numerous pond monitoring locations were temporarily dropped from the monitoring network <br />as a result of TR -24. These locations are situated over and adjacent to the currently inactive East <br />Mine workings. Development of the East Mine was halted in 1986 due to a mine fire. Ample baseline <br />data exists for the features in and around this area and monitoring of selected sites will be renewed <br />approximately one year prior to any further development of the East Mine. <br />Streamflow monitoring locations are presently monitored in accordance with Table 1, Surface Water <br />Appendix, Volume 4. Selected stations are monitored monthly when access allows for field <br />parameters and flows. Water quality samples are collected on a quarterly basis. Collected samples <br />are analyzed for alkalinity as CACO bicarbonate as CACO carbonate as CACO dissolved <br />calcium, chloride, conductivity @ 25° C, pH, Hardness as CACO dissolved magnesium, dissolved <br />sodium, sulfate, SAR in water, TDS ratio (gray. /calc.) , total dissolved solids, and total suspended <br />solids. <br />To increase the sensitivity of the stream gauges in Stevens Gulch and East Roatcap Creek (SW -5 <br />and SW -6) during low, summer flows, the operator installs portable 90 degree V -Notch weir plates <br />within the flumes. See figure #1 in the Surface Water Appendix in Volume 4. The free -flow capacity <br />of the existing Parshall flumes in these streams is thus changed from a minimum flow of 0.61 cfs <br />and a maximum flow of 50.4 cfs, to a minimum flow of 0.02 cfs and a maximum flow of 2.0 cfs. <br />A significant reduction in the streamflow monitoring program was addressed by TR -24. Based upon <br />an evaluation of the current mine plan and an assessment of the potential for mine impacts to occur, <br />selected stations were dropped from the monitoring network. The operator will revise Volume 4, <br />Table 1 as necessary with technical revisions to ensure that the appropriate streamflow station <br />monitoring is conducted as mining progresses into new areas. Several streamflow monitoring <br />locations were temporarily dropped from the monitoring network as a result of TR -24. These <br />locations are situated adjacent to the currently inactive East Mine workings. Development of the <br />East Mine was halted in 1986 due to a mine fire. Ample baseline data exists <br />The above text mentions that the Bowie No. 2 Mine is assuming responsibility for certain hydrologic <br />monitoring stations. The monitoring site tables in Volume 4 show all of the hydrologic monitoring <br />is stations for which the Bowie No. 2 Mine has assumed responsibility. <br />-119- <br />PR-04 <br />Af'Pp'ovEp <br />08/10 <br />