PERMFILE109687

• Permit No: C1981039
• IBM Index Class Name: Permit File
• Doc Name: Rockcastle Pit 4 10/16/91
• Section_Exhibit Name: Reclamation Project Binder
• Media Type: D
• Archive: No

• was also measured directly from a 1°=400' scale map on an individual
subwatershed basis.
Control Practice Factor, CP. The control practice factor is defined as the ratio
of sediment loss from an area with a given cover and conservation practice to
that of a field in continuous fallow.
Using Table 5.5c CP in the SEDCAD+ Users Manual, page 125:
Undisturbed (Premine) Condition
Type and Height of Raised Canopy: Canopy of Tall Weeds and
Short Brush (.5m fall height)
Canopy Cover: 75
Percent Ground Cover: 95
CP:.003
• Reclaimed (Postmine) Condition
Type and Height of Raised Canopy: Canopy of Tall Weeds and
Short Brush (.5m fall height)
Canopy Cover: 50 %
Percent Ground Cover: 80
CP:.019
Reclaimed Pit 4
Type and Height of Raised Canopy: Canopy of Tall Weeds and
Short Brush (.5m fall height)
Canopy Cover: 50
Percent Ground Cover: 50 ~°
CP:.07
Disturbed
Condition: Seeded and fertilized, fresh, unprepared seedbed
. CP:.64 (fable 5.5a)
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