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HYDRO29434
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HYDRO29434
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Entry Properties
Last modified
8/24/2016 8:48:23 PM
Creation date
11/20/2007 10:55:45 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980001
IBM Index Class Name
Hydrology
Doc Date
10/1/1998
Doc Name
3rd Qtr 1998 Pond Inspections & Annual Certifications
From
THE PITTSBURG & MIDWAY COAL MINING CO
To
DMG
Permit Index Doc Type
SEDIMENT POND INSPECTIONS
Media Type
D
Archive
No
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ANNUAL CERTIFICATION OF SEDIMENT POND <br />WEST RIDGE POND <br />September 29, 1998 <br />I, the undersigned, certify that the West Ridge Pond, based on observations made during visual <br />inspection, is structurally sound and shows no signs of hazardous conditions. The sediment level in the <br />structure is currently at 85% of the total pond capacity. A SEDCAD+ computer simulation of the <br />pond's performance has been conducted, ensuring the pond is capable of treating the runoff from the <br />l0yr-24hr storm event. <br />~ ~1~~ <br />Kirk Allen 7.abel <br />Mining Engineer <br />Colorado P.E. #28855 <br />~_=~ <br />~ti t ~~~~ <br />f.` <br />`_ :-_ <br />
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