2008-12-04_PERMIT FILE - C1994082A ‎(4)‎

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 12/4/2008
• Doc Name: Drainage and Sediment Control Plan
• Section_Exhibit Name: Tab 13 Attachment 13-12
• Media Type: D
• Archive: Yes

~~ * _ tr l Plan IS
February 1999 Yaart Itilene 13 12 Drainage and Sedtrrlent Con o

C.
TABLE 13-12.2
Soil Erodibili Factor
Soil Map Unit' Soil Series' Soil Texture Hydrologic
Soil GroupZ Soil Erodibility
Factor'
k
X8DIEIF Winevada-S litro com lex loam B 0.37
2C/D Routt loam C 0.24
6B/C Zolta variant cla loam C 0.21
11C/D Binco cla loam D 0.24
12CID Buckskin loam C 0.19
27ClD Silas loam B 0.28
34C/D/E Coutis silt loam B° 0.36
35C/DIE Aaber cla D 0.19
46C/D S litro loam C 0.24
53CID/E/F Winevada loam B 0.23
66D/E/F Foidel silt loam B 0.28
70D Sk a loam C 0.20
103 Ustorthents-C oborolls com lex loam D 0.20
Rock Outcro D 0.03
To soil Removed C 0.24
S oil/Graded S oil C 0.16
Reclaimed/To soiled B 0.32
Notes: 1) Soil survey data as determined by Nyenhuis (1994)
2) Hydrologic Soil Group values adapted from Table 13-2
3) Surface soil k values; adapted from Table 13-2
4 As identified in National Coo erative Soil Surve ,Web Soil Surve 2.0 RCS, 200
TABLE 13=12.3
CONTROL FACTOR
Cover Cover Type Vegetation Control Factor
Undisturbed Aspen/Mountain
Shrub 25% canopy (2 m tall height),
80% round cover 0.042
Sagebrush 25% canopy (2 m tall height),
80% round cover 0.042
Herbaceous No cano , 60% round cover 0.042
Mesic Draina a No cano , 40% round cover 0.100
Disturbed Bare Ground None 1.0
Reclaimed Herbaceous No canopy, 60% ground cover 0.042
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Montgomery Watson Mining Group * 165 S. Union Boulevard, Suite 460 * I.akewoo~ Colorado 80228 * [phone]
TR 37 Revised 08/08