PERMFILE106811

• Permit No: C1980005A
• IBM Index Class Name: Permit File
• Doc Date: 1/26/2005
• Section_Exhibit Name: Tab 12 Operation Plan
• Media Type: D
• Archive: Yes

• Table 12-6
(.Ulvert Specifications
Seneca II Mine, Routt County, Colorado
Drainage CUlvert3 Q11vert M; n; im im4
Area Peak Rimoff2 Diameter TPrv~r~h Cover Design
Locationl (Acres) 410 (cfs) (Inches) (feet) (Inches) Method
la 840 120 48 80 12 SCS
2a 384.1 22.2 30 80 12 SIDCAD~
3a 41.0 1.2 24 41 12 SEDCADt
3a 24 41 12 -
(5)
9a 1866.9 65.3 90
48 12 SIDCAD+
9a 30 70 12 -
12a 916 80 42 74 12 SCS
13a 12.5 3.0 18 100 12 SIDCADt
15a 727.4 14.9 72 93 18 SEDCAD+
17a 4.2 2.1 24 82 12 SFDCADt
18a 60.7 1.7 24 67 12 SEDC.~D+~
• 19a 738.5 135.7 60(5) 100 18 SEDG~,Dt
24a 8.5 0.5 18 97 12 SFDCAD}
29a 88.3 6.9 30 120 12 SEDCAD}
30a 91.4 7.1 30 80 12 SIDCAD~
31a 2.2 1.4 24 60 12 SFDCAD+~
32a 106.7 3.6 24 106 12 SFDCAD+
33a 18.3 1.4 18 50 12 SIDCAD+
34aa 16.9 0.9 18 80 12 SIDC'ADF
(5)
34a 343.7 65.0 42
100 24 SEDCAD+
45a 71.7 12.4 18 80 30 SFDCAD+
47a 12.8 0.7 24 61 12 SFS7GADt
50a 175.4 19.0 30 80 12 SFDCAD+
52a 32.0 2.6 30 40 12 SEDCAD+
52aa 32.0 2.6 18 30 12 SFDCADF
53a 12.1 0.9 18 40 12 SfDC~~Dt
I
12-32 Revised 10/04/94