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PERMFILE121024
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PERMFILE121024
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Entry Properties
Last modified
8/24/2016 10:19:32 PM
Creation date
11/25/2007 9:01:25 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980005
IBM Index Class Name
Permit File
Doc Date
9/12/2006
Doc Name
As-Built Report Sediment Pond 008
Section_Exhibit Name
Tab 07 Appendix 7-6f.1
Media Type
D
Archive
No
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INTRODUCTION <br />i_ <br />In April, 1987, Sedimentation Pond 008 was designed and subsequently <br />approved by CPfiLRD. Sedimentation Pond 008 was constructed August, 1987 in <br />the Bond Creek drainage which is tributary ~o Fish Creek. Pond 008 will <br />contain runoff from areas currently draining into Pond 007, which is <br />scheduled to be mined through in 1988, in addition to runoff from areas <br />mined in 1988 and 1989 (see Exhibit 12-1, Operations Plan). Pond 008 is <br />designed to handle runoff from its entire watershed. This pond is located <br />in the SW; of the NW;; Sec. 7; T5N; R86W (see Exhibit 7-7). <br />SITE DESCRIPTION <br /> Land Use <br /> Sedimentation Pond 008 has a 247-acre watershed which is tributary to Fish <br /> Creek. The watershed is classified as a mixture of, undisturbed, <br /> disturbed, and reclaimed areas. <br />M <br /> Embankment <br /> The embankment for Pond 008 is a homogeneous earth fill compacted in lifts <br /> to design specifications. The top width of the embankment is <br /> approximately 15 feet wide with upstream and downstream slopes of <br /> approximately 3h:lv,. respectively. The principal spillway is a 6-inch <br /> diameter orifice cut into a 24-inch diameter drop inlet pipe. The <br /> emergency spillway is the 24-inch diameter drop inlet CMP. The principal <br /> spillway is located at the 100 percent sediment storage level. <br /> DESIGN ANALYSIS <br /> General <br /> Sedimentation Pond 008 was designed to meet or exceed the design and <br /> perr"ormance requirements of the Colorado Mined Land Reclamation Division. <br /> Sedimentation Pond 008 was constructed to adhere to the following <br /> specifications: <br /> 7-6f.1-3 <br />
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