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2012-04-13_HYDROLOGY - C1991078 (3)
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2012-04-13_HYDROLOGY - C1991078 (3)
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Last modified
8/24/2016 4:56:17 PM
Creation date
4/13/2012 2:38:17 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1991078
IBM Index Class Name
HYDROLOGY
Doc Date
4/13/2012
Doc Name
2011 Impoundment Yearly Inspection
From
J.E. Stover & Associates, Inc
To
DRMS
Permit Index Doc Type
Sediment Pond Inspections
Email Name
JLE
SB1
Media Type
D
Archive
No
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IMPOUNDMENT CAPACITY - ACRE FEET <br />Water <br />Sediment <br />Total <br />Pond B <br />8.07 <br />0.55 <br />8.62 <br />In accordance with Rule 4.05.9(14), all impoundments shall be inspected at least yearly <br />to determine if the impoundment has been maintained as designed, and in accordance <br />with the approved plan and the applicable regulations. This yearly inspection is for the <br />impoundment located at the Hamilton Mine. <br />HONEYWOOD COAL COMPANY <br />HAMILTON MINE <br />IMPOUNDMENT YEARLY INSPECTION <br />On April 6, 2012, I performed the required yearly inspections. I, J. E. Stover, have a <br />wide variety experience in the design and construction of earth fill embankments. Pond <br />A was reclaimed in December 2010. With regard to Pond B, nothing was observed <br />during the inspection that would indicate the pond has a potential for failure. There was <br />no appearance of erosion, instability, structural weakness or other hazardous <br />conditions. There are no required monitoring procedures or instrumentation other than <br />quarterly and yearly monitoring. There are no aspects which might affect stability and <br />there is no required maintenance. There was no discharge from the pond. <br />Pond B was dry. Pond B is located east of Mining Area No. 1. The design of Pond B is <br />shown on drawing 117 B, revised 11 -4 -92. <br />The impoundment has the following capacity based on the original pond certification <br />dated May 5, 1992 prepared by the undersigned: <br />Note: <br />The sediment capacity of the pond may be less than shown in the table because <br />of interim sediment accumulation. <br />� <br />.oundment has been maintained as <br />designed and in accordanc v , 4 P" e ap�+ i Ian and applicable regulations. <br />:*r 19 30 : . <br />*s ` ,j <br />Jame - Shover.. 4" Date <br />Colorado gineer <br />Registration <br />
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