2011-10-31_REVISION - M1976009HR ‎(7)‎

• Permit No: M1976009HR
• IBM Index Class Name: REVISION
• Doc Date: 10/31/2011
• Doc Name: Submittal
• From: Schmidt Construction Company
• To: DRMS
• Type & Sequence: AM4
• Media Type: D
• Archive: No

Menzer Quarry - South Facing Seed Mix (also Quarry Floor)
SPECIES lb/acre PLS
seeds/sq ft
Western Wheatgrass
4
11.57
Streambank Wheatgrass
4
14.69
Blue Grama
1
16.32
Crested Wheatgrass, Fairway
2
13.87
Sideoats Grama
4
13.13
Basin Wildrye
4
8.72
TOTAL
19
78.31
area:
Reclamation Plan
This mixture should be used on level to south and west facing slopes in the Rim Rehabilitation
Tree and Shrub Plantings: No shrub or tree plantings are expected to be done in the
rehabilitation area. However, at the operator's discretion, if trees and shrubs do not invade the area
within the first 5 years the operator may transplant trees and/or shrubs into this area. The reason for
not doing any tree or shrub planting early on in the rehabilitation is because it is more important to
initially establish grass growth on the bench. Furthermore, because additional grading will be
occurring on the land above the cliff, some rock falls from the rim can be expected. They would
likely occur even if no grading was done above the cliff. If expensive trees and shrubs were planted
on the bench to augment the grass growth they could be damaged or killed by rock fall as the land
above the bench fully stabilizes. It also needs to be pointed out that some of the material above the
cliff is material remaining from the landslide. Although the slope will be changed to a more gradual
grade above the cliff, that landslide debris may still exhibit some downslope creep. Thus, once it is
known how the land above the cliff will behave relative to the bench, planting expensive trees and
shrubs seems unwise.
Management
Weed Control: Normal weed control will be implemented primarily on the bench. But if any
weeds spread to the east bank and become a problem, control will be implemented there as well.
Water Resources: For the first four or five years, the stream channel in this area will be
watched closely to insure that no problems are developing with the alignment or headward erosion.
Erosion into the west bank is not of great concern because it is understood that the stream will
ultimately go that way anyway. At least the long term problem of rock creep down the slope on the
west bank prior to mining has been removed. Therefore, the gradual accumulation of large rock in
Menzer Quarry Corrective Action Amendment Exhibit E October 2011 Page 6