PERMFILE69798

• Permit No: C1996084A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: Section 2.05 Operation and Reclamation Plans Part 2
• Media Type: D
• Archive: Yes

Rule 2: Permits
' Reclamation of Ephemeral Drainages
Disturbed portions of each drainage channel will be filled as appropriate, and regraded to
conform to the approximate original contour, as shown on the Post Mining Topography
map (Map 2.05.4-1) and the longitudinal profiles in Figure 2.05.4-18a. Channels will be
lined with riprap or other protection as necessary to stabilize the channel and prevent any
erosion that would violate the water quality standazds for the receiving stream, and to
comply with Rule 4.27.3(7). The design specifications to reclaim ephemeral drainage
channels that will be impacted by mining activities are summarized in Table 2.05.4-1a.
.•

Table 2.05.4-1 a
Design Specifications for Reclaimed Ephemeral Drainages
Design Top Channel
Reclaimed Dischazge Slope Depth Width lining/D50
Channel Location (cfs % feet) (feet size inches
AI above Pond 8-l, 7.54 19.2 0.2 10.8 Riprap/1.50
U er Drainage
A2 above Pond 8-l, 21 28 12.5 0.4 11.9 Riprap/3.00
Lower Draina e
B above Pond 7-2 ] 0.29 I6.0 0.2 11. I Ri ra /3.00
C above Pond 7-1 18.87 11.3 0.4 11.8 Ri ra /3.00
D above Pond 6-1 17.53 16.6 0.3 11.8 Ri ra /3.00
E PS 6.57 26.0 0.4 13.0 Grass
Mixture
F P4 54.63 11.4 0.7 13.6 Ri ra /6.00
G P2 11.30 11.4 0.2 11.3 Ri ra /3.00
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2.05-62b (revised 10/4/01)