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HYDRO28873
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Last modified
8/24/2016 8:47:58 PM
Creation date
11/20/2007 9:59:20 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981047
IBM Index Class Name
Hydrology
Doc Date
4/7/2004
Doc Name
2004 Annual Impoundment Inspection
From
Minrec Inc
To
DMG
Permit Index Doc Type
Prof Pond Certifications
Media Type
D
Archive
No
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MINREC, INC. <br />BLUE RIBBON 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 for the <br />impoundments located at the Blue Ribbon Mine. <br />On March 31, 2004, 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. <br />Nothing was observed. during the inspection that would indicate the ponds have_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 annual inspections. There are no aspects <br />which might affect stability and there is no required maintenance. Ponds 3 and 5 were <br />dry to damp. Pond 4 had a small pool of water at approximate elevation of 6322, below <br />the level of the primary spillway. There was no discharge from any of the ponds. <br />The ponds/impoundments have the following approximate capacities: <br />IMPOUNDMENT CAPACITIES -ACRE FEET <br /> Water Sediment Total <br />Pond 3 0.10 0.12 0.22 <br />Pond 4 0.06 0.07 0.13 <br />Pond 5 0.47 0.28 0.75 <br />Notes: <br />1. Capacities based on latest electronic topography (June 1999). <br />To the best of my knowledge ron~i die impoundments have been maintained as <br />designed and in accordanG~A° ,`~tl~eed plan and applicable regulations. <br />F;. - . <br />,~v ~ ~~ <br />~ o~~.so <br />E. Stover .'~~! Date <br />
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