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ENFORCE27072
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ENFORCE27072
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Entry Properties
Last modified
8/24/2016 7:34:48 PM
Creation date
11/21/2007 11:30:42 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981029
IBM Index Class Name
Enforcement
Doc Date
6/25/1994
Doc Name
1 JUNE 94 INSPECTION OF SEDIMENTATION PONDS AT THE MEADOWS 1 MINE T6N R87W ROUTT CNTY CO
From
EUGENE M SHEARER PE
To
SUN COAL CO
Violation No.
CV1994012
Media Type
D
Archive
No
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<br />Vegetative cover on pond slopes grows down to within a few <br />inches of water level, a level that is 11 inches below the <br />base of the dewatering device on 1June94. There is no <br />evidence that frost heaving, that has adversely affected the <br />culvert and riser in past years, occurred in the 1993-1994 <br />winter season. The riser is clear of debris. The riprapped <br />outflow area from the culvert is in good condition and <br />exhibits no evidence of erosional modification. <br />The emergency spillway appears to be in its "as built" <br />configuration. Vegetation is beginning to grow in areas <br />between the flagstone riprap, and there is no evidence that <br />the spillway has functioned in the recent past. Revegetation <br />of the area disturbed by spillway installation is proceeding <br />satisfactorily. <br />The southern and western backslopes of the embankment area <br />are well vegetated and no rills or gullies disrupt this <br />terrain. <br />Yamaa River Sedimentation Pond <br />Vegetation on the inner pond slopes and the surrounding <br />areas is attenuated as compared to the other ponds on the <br />Meadows No.l Mine property. Apparently cattle graze this <br />area and utilize the pond for water. Nonetheless, no rills <br />or gullies are present in the area. <br />The dewatering pipe is clear of debris and the input is <br />about 8 inches above water level as of 1June94. The outflow <br />riprap appears unchanged from the August93 inspection. The <br />emergency spillway remains in its "as built" configuration <br />and shows no indication that it has functioned recently. <br />The eastern input culvert is clear of debris. Clastics, <br />transported down the ditch along the south side of the haul <br />road, have been deposited at the input of the western <br />culvert. Input capacity to the western culvert is diminished <br />approximately 50 percent due to this deposit. <br />The water depth marker teas been pushed aside. <br />If you Dave any questions concerning the above observations <br />don't hesitate to contact me at your convenience. <br />Respectfully submitted, <br />ne M. Shearer,P.E. /•~•~ ~_ <br />. / ~ <br />.~.~ ;` <br />~. ._ ., <br />
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