2008-12-04_PERMIT FILE - C1994082A ‎(14)‎

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 12/4/2008
• Section_Exhibit Name: Tab 13 Facilities
• Media Type: D
• Archive: Yes

TABLE 13-1
Curve Number Table for Yoast Mine
Cover Vegetation Hydrologic Soil Group
Type Condition Cover % A B C D
Aspen Undisturbed 30-70 48 57 63
70-100 30 41 48
Mixed Brush Undisturbed 30-70 48 57 63
70-100 30 41 48
Sagebrush Undisturbed 30-70 51 63 70
70-100 35 47 55
Pasture Undisturbed 30-70 69 79 84
70-100 - 61 74 80
Rangeland Undisturbed 30-70 69 79 84
70-100 61 74 80
Western Wheatgrass/ Undisturbed 30-70 71 81 89
Alkali Sagebrush 70-100 62 74 85
Steep Mountain Brush Undisturbed 0-70 67 77 83
70-100 48 65 73
Nlesic Drainage Undisturbed 70-100 48 57 63
Meadow Undisturbed 0-70 69 79 84
Rock Outcrop Undisturbed 98.
Water Undisturbed 100 100 100
Paved (Incl. R-O-W) Disturbed 98
Gravel Roads Disturbed 85 89 91
Dirt Roads Disturbed 82 87 89
Facility Disturbed 85 89 91
Topsoil Salvage Disturbed 85 91 94
Spoil 86 91 94
.Graded Spoil Disturbed 86 91 94
Bare Ground Disturbed 86 91 94
Pit Disturbed 86 91 94
Topsoil Replaced .Reclaimed 0-30 76 80 84
Revegetated Reclaimed 30-70 70 78 82
Held for Release Reclaimed 70-100 61 74 80
TR-37 8 Revised 02/08