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2016-10-14_REVISION - C1981041 (2)
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2016-10-14_REVISION - C1981041 (2)
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Entry Properties
Last modified
10/24/2016 9:27:11 AM
Creation date
10/24/2016 7:35:34 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981041
IBM Index Class Name
Revision
Doc Date
10/14/2016
Doc Name
SCC Response to Pond 11 Exclusion
From
Snowcap Coal Company
To
DRMS
Type & Sequence
SL9
Email Name
JLE
DIH
Media Type
D
Archive
No
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SL -9 <br />Cameo Borrow Area - Adjacent <br />The LS factor for the Adjacent area is based on an average 100H:1 V Slope and an average <br />change in elevation of 2 feet and average length of slope is 220 feet based on one flow lines located in the <br />adjacent area. The length of slope of run-off from the adjacent area was decreased to a length of 197 feet <br />to make it comparable to the Cameo Borrow area. <br />Average Length 197.0 Feet <br />Average Slope 1.0% <br />Percent Slope (S) <br />0.5% 1.0% 2.0% <br />180 0.120 0.160 0.240 <br />197.0 "LS" Factor 0.163JI <br />200 0.120 0.163 0.250 <br />Cameo Borrow Area <br />The LS factor for the Cameo Borrow Area is based on an average 65H:1 V slope with an average change <br />in elevation of 3 feet based on one flow lines cut through the area. <br />Average Length 197.0 Feet <br />Average Slope 2.0% <br />Percent Slope (S) <br />0.5% 1.0% 2.0% <br />180 0.120 0.160 0.240 <br />197.0 "LS" Factor 0.163JI <br />200 0.120 0.163 0.250 <br />Pond 7 -Adjacent <br />The LS factor for the Adjacent area is based on an average 16H:1 V Slope and an average <br />change in elevation of 6 feet and average length of slope is 88 feet based on two flow lines located in the <br />adjacent area. The length of slope of run-off from the adjacent area was decreased to a length of 101 feet <br />to make it comparable to the Cameo Borrow area. <br />Average Length 101.0 Feet <br />Average Slope 6.2% <br />Percent Slope (S) <br />6.0% 6.2% 8.0% <br />100 0.670 0.702 0.990 <br />101.0 "LS" Factor 0.706JI <br />110 0.710 0.739 1.000 <br />Pond 7 Area <br />The LS factor for the Pond 7 Area is based on an average 16H:1 V slope with an average change <br />in elevation of 5 feet based on two flow lines cut through the area. <br />Average Length 101.0 Feet <br />Average Slope 6.0% <br />Percent Slope (S) <br />6.0% 6.0% 8.0% <br />100 0.670 0.667 0.990 <br />101.0 "LS" Factor 0.671JI <br />110 0.710 0.707 1.000 <br />Tab -9, Page 9 <br />Revised 10/18/2016 <br />
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