2017-05-12_PERMIT FILE - C2010089A ‎(4)‎

• Permit No: C2010089A
• IBM Index Class Name: PERMIT FILE
• Doc Date: 5/12/2017
• Doc Name: Ponds, Impoundments and Diversions
• Section_Exhibit Name: Section 2.05.3‎(4)‎
• Media Type: D
• Archive: Yes

Ponds, Impoundments, Other Treatment Facilities and Diversions
Introduction
This section contains general plans and detailed plans for sediment ponds and ditches to be
constructed within the permit area. Map 2.05.3(4)-1 delineates the locations of the sediment
ponds and ditches.
Sediment and Water Control Facilities Plan
Surface mining activities will be planned and conducted to minimize disturbance of the
prevailing hydrologic balance in both the mine plan and adjacent areas in order to prevent long-
term adverse changes in the hydrologic balance.
Sediment control measures will include proper utilization of mining and reclamation methods
and sediment control practices singly or in combination. Sediment control methods may include,
but not be limited to the following:
1. Disturbing the smallest practicable area at any one time during the mining and
construction operation;
2. Stabilizing graded material to promote a reduction in the rate and volume of runoff;
3. Retaining sediment within disturbed areas;
4. Diverting runoff away from disturbed areas including stockpiles, back slopes, and
material storage;
5. Diverting runoff through disturbed areas using stabilized earth channels, culverts or pipes
so as to prevent, to the extent possible, additional contributions of sediment to stream
flow or to runoff outside the permit area;
6. Using straw dikes, silt fences, small trapezoidal or V -ditches, riprap, mulches, check
dams, vegetative sediment filters, temporary cover crops, sediment traps, and other
measures that will reduce overland flow velocity, reduce runoff volume, or trap sediment;
7. Treating traffic areas with water or dust suppressant to reduce the potential for wind and
water erosion.
In addition, appropriate sediment control measures representing the best technology currently
available may be utilized which may include, but not be limited to the following:
1. Soil surface mechanical manipulation measures that include contour furrowing, chisel
plowing, etc.
2. Topographic manipulations that include recontouring or reshaping of graded material in a
manner that minimizes the potential for soil erosion;
3. Surface protection measures that include surface stabilizers such as temporary cover crop
with permanent vegetation covers occurring as timely as practical,
Section 2.05.3(4) Page 1 April 2016 (PR -01)