PERMFILE108466

• Permit No: C1980004A
• IBM Index Class Name: Permit File
• Doc Date: 8/22/2006
• Section_Exhibit Name: Tables 4.2 to 4.5-28
• Media Type: D
• Archive: Yes

•
TABLE 4.2-10 HYDROLOGIC PARAMETERS & PEAK FLOW -MINING
•

Basin Descnption Recemng
Structure /Stream
Ve elation %
Litter °.6 Soil
Grou Total
Cover
CN
C - 1 Area NW of Mina Site 18 " CMP on North Diversion Juniper -Reduce Veg Cover to 30 °.fi 23 C 53 72
C - 2 Area NE of Mine Site 30 "CMP on North Diversion Juniper -Reduce Veg Cover to 30 % 23 C 53 72
C - 3 Main Drainage -East of Mine 42 "CMP on South Diversion Juniper -Reduce Veg Cover to 40 °.6 20 C 60 70
C - 4 SE of McClane Fan Portal 18 "CMP on South Diversion Juniper -Use Baseline Data - 45°k 23 C 66 67
C - 5 South of Mine Site Future 18" CMP to Scuth Diversion Juniper -Heavy > 45 % 23 C 68 67
Currently- DRch to Sediment Pond
C - 6 West of Mine Office McClane Creek Undisturbed Juniper -Heavy > 45 °h 23 C 66 67
C - 7 South of Second Gate 18 "CMP under Road Juniper -Reduce Veg Cover to 40 °h 23 C 63 69
C - 6 East of Sediment Pond Ditch @ Pond Juniper -Reduce Veg Cover to 40 % 23 C 63 69
C - 9 SE of sediment Pond Ditch @ Pond Juniper- Heavy > 45 % 23 C 68 67
C - 10 Soutli of Sediment Pond Ditch ~ Pond Juniper -Heavy > 45 % 23 C 68 67
C - 11 SW of Sediment Pond Ditch ~ Pond Juniper -Heavy > 45 % 23 C 68 67
C - 12 South of Office East Satt Creek Undisturbed Juniper -Reduce Veg Cover to 30 °.6 20 C 50 73
C -13 South of Office East Salt Creek Undisturbed Juniper -Reduce Veg Cover to 30 % 20 C 50 73
C - 14 South of Office East Salt Creek Undisturbed Juniper -Reduce Veg Cover to 30 °h 20 C 50 73
C - 15 North of McClane Road McClane Creek Undisturbed GWoad 8 S'Scale- Reduce to 40 % 10 D 50 72

D - 1 Mine Site & Areas Flowing Into It DRch to Sediment Pond Weighted Avg Shown Below 76
South Undisturbed Juniper - 2.63 Ac ~ >45°.fi Veg Cover 23 C 68 67
East Undisturbed Juniper -1.23 Ac @ 20°.6 Veg Cover 23 C 43 76
North Undisturbed Shadscale - 1.78 Ac C~ 50°h Veg Cover 10 D 60 77
Mine SRe -Disturbed 2.72 Acres NIA D N/A 90
D - 2 East of 2ND Gete So. of Road DRch to Sediment Pond Juniper -Reduce Veg Cover to 30 °h 20 C 50 73
D - 3 North East of Sediment Pand Ditch to Sediment Pond Juniper -Reduce Veg Cover to 30 % 20 C 50 73
D - 4 Future area West of Rip Rep Future DRch GW 8 SS -Reduce Veg Cover to 10°r6 5 C 15 80
Baseline Vegetation Data From Table 4.5-26 • -Vegetative cover estimated for each specfic basin from knowledge of site
Vegetation °.5 Litter °,b and inspection of aireal photographs. In no case was the cover Increased.
Greasewood Shrubiand 74.4 14.7 The cover was ony reduced for those areas which are known to have less
Shadscale Shrubland 62.7 10 than that in the study area.
Juniper Woodland 45.3 23.3
MC VOII rigo 1 ]0.97