GENERAL34915

• Permit No: C1980001
• IBM Index Class Name: General Documents
• Doc Name: 1998 EROSION INVENTORY REPORT
• Media Type: D
• Archive: No

• Block 9
Th
e erosion condition composite SSF score for this site was 6, which places it in the
Stable erosion class. The tabulated results for this survey aze shown in Table 10. This area
improved significantly over previous years. The gullies repaired in the upper southern portion of
the block resulting from gully activity in Block 10 along the narrowed Lower Moffat Road have
not reoccurred. The spoil springs and seeps in this block have formed a system of small drainage
channels. These channels continue to stabilize with armored bottoms and increased vegetation
along the channel edges. No corrective measures are planned as a result of the inventory.
Table 10: Moffat Area Block 9 Erosion Condition Classification
Possible
Item Score 1998 1997 1996 1995 1993
Soil Movement 14 0 3 5 S
Surface Litter 14 0 3 0 6
Surface Rock Fragments l4 0 3 5 2
Pedestalling l4 0 0 0 0
Flow Patterns 15 0 3 5 9
Rills 14 3 6 6 9
Gullies 15 3 6 9 6
Total 100 6 24 30 37
Erosion Condition Classi fication: Stable Slight Slight Slight

Block ]0
The erosion condition composite SSF score for this area was 9, which placed it in the
Stable erosion class. The tabulated results for this survey are shown in Table 11. The area was
seeded in late 1996. Several gullies connecting to the final pit drainage channel existed in the
block. The gullies resulted from late summer storm activity in 1997. These gullies were repaired
prior to the 1998 inventory. The SSF value for the block does not reflect the repaired gullies. No
corrective measures are planned as a result of the inventory.
Table 11: Moffat Area Block 10 Erosion Condition Classification
Possible
Item Score 1998 1997 1996 1995 1993
Soil Movement 14 0 3
Surface Litter 14 0 0
Surface Rock Fragments 14 0 3
Pedestalling l4 0 0
Flow Patterns 15 0 6
Rills 14 6 9
Gullies 15 3 15
Total 100 9 36
Erosion Condition Classification: Stable Slight
9