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PERMFILE127679
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PERMFILE127679
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Last modified
8/24/2016 10:24:49 PM
Creation date
11/25/2007 5:04:23 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981023
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
EXHIBIT 7 SEDIMENT CONTROL DESIGN CRITERIA
Media Type
D
Archive
No
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Control Practice (CP) Factors aze correlated in the following table. <br />Table 7-1-2 Control Practice Factors <br />Location Land Use Description Control Practice <br />Factor <br />Alluvial Valley Floor' Other Agricultural Lands, Meadow 0.0072 <br /> Other Agricultural Lands, Pasture 0.003' <br />East Pit Top, South, West' Other Agricultural Lands, Pasture 0.032" <br />East Pit Top, North Flat' Other Agricultural Lands, Pasture 0.023' <br />East Pit East Slope Other Agricultural Lands, Pasture 0.0316 <br />Undisturbed Areas Other Agricultural Lands, Pasture 0.016' <br />Barren Ridge' Other Agricultural Lands, Pasture 0.0368 <br />Forested area above Barren <br />Ridge Undisturbed woodland, 40% canop:~ 0.004 <br />Knoll east of Pond 004 Nearly bare slopes, estimated 40% <br />rock and other ground cover 0.30 <br />Highway Asphalt Pavement 0.00 <br />Industrial azea Gravel hazdstand, 80% cover 0.08 <br />Dirt roads Dirt roads, compacted 1.20 <br />~ CP Factors for Permanent Pasture, Rangeland, Idle Land, and Grazed Woodlanc <br />Z Alluvial Valley Floor (AVF) meadow, 88.8% ground cover (Phase II 92), interpolated as follows: <br />Percent Ground Cover CP Factor <br />80 0.013 <br />88.8 0.007 <br />95 - 100 0.003 <br />~ Dryland Reference Area, 98.1% ground cover, pre-mining (Phase 11 92) <br />° 67.4% ground cover, East Pit -Top, South and West (Phase 11 93), interpolated as follows: <br />Percent Growd Cover CP Factor <br />60 0.042 <br />67.4 0.032 <br />80 0.013 <br />72.7% ground cover, East Pit -Top, North Flat (Phase II 93), interpolated as follows: <br /> <br />• <br />r 1 <br />LJ <br />7-4 8 May 1996 <br />
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