PERMFILE110631

• Permit No: C1981018A
• IBM Index Class Name: Permit File
• Doc Date: 10/10/2003
• Doc Name: Post Reclamation Refuse Area Sedimentology Calculations
• Section_Exhibit Name: Illustration 49
• Media Type: D
• Archive: Yes

• SEDCAD NOTES
REFUSE AREA #1 -RECLAMATION
Structure #1 -Undisturbed upland
Soils: primarily Moyerson and Moyerson rock outcrop -Hydrologic soils group D
CN = 70 Arid and semiarid rangelands -Sagebrush with grass understory -
fair condition.
Soil K = 0.28 From NRCS
L = 120 Measured
S = 12.5% Measured
C = 0.17 Permanent pasture, rangeland, etc. - 20% ground cover -canopy
of tall weeds or short brush (0.5m fall ht.)
P = 1.0
Structure #2 -Old topsoil pile area
• Soils: Combination of Moyerson (D) and Potts (B). Topsoil primarily Potts
and Bowbac (B}. Hydrologic soils group C used.
CN = 81 Arid and semiarid rangelands -Herbaceous-mixture of grasses,
weeds, and low-growing brush, with brush the minor element -fair
condition.
Soil K = 0.28 From NRCS
L = 250 Measured
S = 12% Measured
C = 0.10 Permanent pasture, rangeland, etc. - 40% ground cover - no
appreciable canopy.
P = 1.0
Structure #3 -West refuse pile slopes
Soils: Replacement soils primarily Potts and Bowbac -Hydrologic soils
group B
•