PERMFILE61862

• Permit No: C1981038A
• IBM Index Class Name: Permit File
• Doc Date: 1/10/2005
• Doc Name: page 100 to 164
• Section_Exhibit Name: 2.05 Operation and Reclamation Plans Part 3
• Media Type: D
• Archive: Yes

2.05 APPLICATION FOR PERMIT FOR SURFACE OR UNDERGROUND MINING ACTIVITIES--
MINIMUM REQUIREMENTS FOR OPERATION AND RECLAMATION PLANS.
• 2.05.6 Mitigation of Surface Coal Mining Operation Impacts. (COnt'd.)
(3) (b) (iii) (Cont'd.)
Concerning ponds, water quality samples are obtained if the ponds are
discharging on an annual basis with particular emphasis placed on the
collection of samples during spring runoff. Collected samples are
analyzed for alkalinity as CACO3, bicarbonate as CACO3, carbonate as
CACO3, dissolved calcium, chloride, conductivity @ 25° C, pH,
Hardness as CACO3, dissolved magnesium, dissolved sodium, sulfate,
SAR in water, TDS ratio {gray./calc.), total dissolved solids, and
total suspended solids.
As the mine plan develops, The operator will revise Volume 4, Table 2
as necessary with technical revisions to ensure that the appropriate
pond monitoring is conducted if mining progresses into new areas.
Numerous pond monitoring locations were temporarily dropped from the
monitoring network as a result of TR-24. These locations are situated
over and adjacent to the currently inactive East Mine workings.
Development of the East Mine was halted in 1986 due to a mine fire.
Ample baseline data exists for the features in and around this area
and monitoring of selected sites will be renewed approximately one
year prior to any further development of the East Mine.
Streamflow monitoring locations are presently monitored in accordance
with Table 1, Surface Water Appendix, Volume 4. Selected stations
are monitored monthly when access allows for field parameters and
flows. Water quality samples are collected on a quarterly basis.
. Collected samples are analyzed for alkalinity as CACO3, bicarbonate
as CAC O3, carbonate as CACO„ dissolved calcium, chloride,
conductivity @ 25° C, pH, Hardness as CAC03, dissolved magnesium,
dissolved sodium, sulfate, SAR in water, TDS ratio (gray. /calc.) ,
total dissolved solids, and total suspended solids.
To increase the sensitivity of the stream gauges in Stevens Gulch and
East Roatcap Creek (SW-5 and SW-6) during low, summer flows, the
operator installs portable 90 degree V-Notch weir plates within the
flumes. See figure #1 in the Surface Water Appendix in Volume 4.
The free-flow capacity of the existing Parshall flumes in these
streams is thus changed from a minimum flow of 0.61 cfs and a maximum
flow of 50.4 cfs, to a minimum flow of 0.02 cfs and a maximum flow of
2.0 cfs.
A significant reduction in the streamf low monitoring program was
addressed by TR-24. Based upon an evaluation of the current mine plan
and an assessment of the potential for mine impacts to occur,
selected stations were dropped from the monitoring network. The
operator will revise Volume 4, Table 1 as necessary with technical
revisions to ensure that the appropriate Streamflow station
monitoring is conducted as mining progresses into new areas. Several
Streamflow monitoring locations were temporarily dropped from the
monitoring network as a result of TR-24, These locations are situated
adjacent to the currently inactive East Mine workings. Development of
the East Mine was halted in 1986 due to a mine fire. Ample baseline
data exists
TR 34 Revised 7/31/2001
ff h`O / 119