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HYDRO20183
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Entry Properties
Last modified
8/24/2016 8:41:33 PM
Creation date
11/20/2007 1:24:21 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1984065
IBM Index Class Name
Hydrology
Doc Date
3/25/2005
Doc Name
2005 Annual Pond Inspection
From
J.E. Stover & Associates
To
DMG
Permit Index Doc Type
Sediment Pond Inspections
Media Type
D
Archive
No
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C.B. MINERALS COMPANY, LLC <br />COAL RIDGE NO. 1 MINE <br />IMPOUNDMENT YEARLY INSPECTION <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 forthe <br />impoundment located at the Coal Ridge No. 1 Mine. <br />On March 22, 2005, I performed the required yearly inspection. I, J. E. Stover, have a <br />wide variety experience in the design and construction of earth fill embankments. <br />Nothing was observed during the inspection that would indicate the pond has a <br />potential for failure. There was no appearance of erosion, instability, structural <br />weakness or other hazardous conditions. There are no required monitoring procedures <br />or instrumentation other than quarterly and yearly inspections. There are no aspects <br />which might affect stability and there is no required maintenance. The east and west <br />cells of the pond were damp to dry. <br />The sediment pond has the following capacity: <br />IMPOUNDMENT CAPACITIES -ACRE FEET <br /> Water Sediment Total <br />Sediment Pond 6.34 0.90 7.24 <br />Note: <br />Capacities are derived from Figure 4.3-6, Issue No. 1 dated 7(27!00 and <br />verification of sediment level relative to primary spillway. <br />To the best of my knowledge and belief, the impoundment has been maintained as <br />designed and in accordance with the approv@d~~Papplicable regulations. <br />A <br />°°~~P®'~~L~ S~SFF9~ <br />'~~,;, ~5 Tno.~ <br />°c~ o r^ Gee ~. <br />a ° ~ .., <br />/ l~i~l ~Jjl'" ~n*Q <br />,!- ~' ~-~ ~~ nS <br />James E. toyer ~®,~°~ , o^"a~°aDate <br />Colorado Professiona~~ti2jinEa~ Vet©~'d° <br />Registration No. 19230 ~`~ppOo <br />
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