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2017-03-10_REVISION - C1981041
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2017-03-10_REVISION - C1981041
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Entry Properties
Last modified
3/13/2017 7:22:00 AM
Creation date
3/13/2017 6:51:23 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981041
IBM Index Class Name
Revision
Doc Date
3/10/2017
Doc Name
Application
From
Snowcap Coal Company
To
DRMS
Type & Sequence
SL10
Email Name
JHB
JRS
Media Type
D
Archive
No
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USING THE UNIVERSAL SOIL LOSS EQUATION <br />A=RKLSCP <br />A is the soil loss in Tons/AcreNear <br />R = rainfall factor 1 <br />Adjacent <br />Pond 11 <br />30.00 <br />Pond 11 <br />Reclaimed <br />30.00 <br />Adjacent <br />Area <br />G -Sub <br />30.00 <br />G <br />Substation <br />Reclaimed <br />30.00 <br />K = soil erodibili factor -Cameo <br />0.24 <br />0.24 <br />0.24 <br />0.24 <br />LS = combined length slope factor <br />0.38 <br />0.23 <br />4.63 <br />3.126 <br />C = cropping mana ement factor: <br />30 1 <br />024 <br />0.38 <br />0.192 1 <br />1.0 <br />0.52 <br />Pond 11 <br />Ground Cover 21.6% <br />"C" - Crop Management -Adjacent <br />30 1 <br />0.24 <br />Canopy 7.1% <br />0.194 1 <br />1.0 <br />0.32 <br />Adjacent G Substation <br />Ground Cover 21.6% <br />0.192 <br />0.192 <br />30 1 <br />024 <br />4.630 <br />0.192 1 <br />1.0 <br />"C - Crop Management - Reclaimed <br />G Substation <br />0.194 <br />0.194 <br />Canopy 18.0% <br />30 1 <br />0.24 <br />3.126 <br />Ground Cover 21.3% <br />1.0 <br />4.36 <br />P = erosion control practice factor <br />1.00 <br />1.00 <br />1.00 1 <br />1.00 <br />USING THE UNIVERSAL SOIL LOSS EQUATION <br />A=RKLSCP <br />A is the soil loss in Tons/AcreNear <br />SOIL LOSS CALCULATION <br />CRDA-1 <br />Road <br />Reclaimed <br />R = rainfall factor <br />AREA R <br />K <br />I LS <br />C I <br />P <br />I A <br />Adjacent Area -Pond 11 <br />2.16 <br />C = cropping management factor. <br />30 1 <br />024 <br />0.38 <br />0.192 1 <br />1.0 <br />0.52 <br />Pond 11 <br />Ground Cover 21.6% <br />0.192 <br />30 1 <br />0.24 <br />0.23 <br />0.194 1 <br />1.0 <br />0.32 <br />Adjacent G Substation <br />Ground Cover 21.3% <br />30 1 <br />024 <br />4.630 <br />0.192 1 <br />1.0 <br />6.41 <br />G Substation <br />30 1 <br />0.24 <br />3.126 <br />0.194 1 <br />1.0 <br />4.36 <br />USING THE UNIVERSAL SOIL LOSS EQUATION <br />A=RKLSCP <br />A is the soil loss in Tons/AcreNear <br />Adjacent <br />CRDA-1 <br />Road <br />CRDA-1 <br />Road <br />Reclaimed <br />R = rainfall factor <br />30.00 <br />30.00 <br />K = soil erodibilit factor -Cameo <br />0.24 <br />024 <br />LS = combined length slope factor <br />11.40 <br />2.16 <br />C = cropping management factor. <br />"C - Crop Management -Adjacent <br />Canopy 7.1% <br />Ground Cover 21.6% <br />0.192 <br />"C - Crop Management -Reclaimed <br />0 194 <br />Canopy 18.0% <br />Ground Cover 21.3% <br />P = erosion control practice factor <br />1.00 <br />1.00 <br />SOIL LOSS CALCULATION <br />AREA 7 R I K I LS I C P A <br />Adjacent Area-CRDA-1 Road <br />30 1 0.24 1 11.40 1 0.192 1.0 15.77 <br />CRDA-1 Road <br />30 0.24 2.164 0.194 1.0 3.02 <br />The above calculations demonstrate that untreated drainage from the reclaimed areas will contribute fewer <br />suspended solids to streamflow or runoff outside the permit area than untreated drainage from the natural <br />surrounding premining area. Based on this demonstration, vegetation is established as good <br />or better than the shadscale reference area and proves that vegetation is sufficient to <br />control erosion. <br />SL -10 Tab -7, Page 7 03/06/2017 <br />
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