PERMFILE120263

• Permit No: C1981041A
• IBM Index Class Name: Permit File
• Doc Date: 6/16/2003
• Doc Name: A-2 Sediment Control Calculations TOC to pg RSN-51
• Section_Exhibit Name: Tab 13 Appendix 13-2
• Media Type: D
• Archive: Yes

• Roadside South Portal (RSS-#) formerly Roadside Mine
Pond 8 -Storage, sediment volume and peak flow 1-2
-Emergency spillway design 3-4
Design of drainage structures leading to Pond 8 5-14c
Pond 9 -Storage, sediment volume, peak flow and spillway design 15-18
Design of drainage structures leading to Pond 9 19-28
Design of South diversion 29-35
Grated drains at portal level 36-44
Culvert at portal level below retaining wall 45-50
North Collection Ditch 51-53
L~
Cameo Refuse Disposal Area No. 2 (CRDA2-#)
Pond 10 -Storage, sediment volume, peak flow and spillway design 1-3
East and west collection ditches and associated culvert design 4-7
Bench and top of pile drainage design 8-11
Permanent diversion above pile design 12-13k
Cameo Refuse Disposal Area No. 3 (CRDA3-#)
Pond 11 -Storage, sediment volume, peak flow and spillway design 1-6
Collection ditch and associated culvert design 7-10
Bench and top of pile drainage design 11-14
Permanent diversion above pile design 15-18
Miscellaneous Drainage Design (MISC-#)
Typical pond inlet rip rap design
2 West Portals culvert design
Coal Gulch drainage and culvert design
Cameo Borrow Area No. 2 collection ditch design
Coal Ganyon relocation design
Scour Protection and Transition Zone
1
2-5
6-8
9-10
11-19
20-22
J
A13-2-ii (Rev. 05/03)