APPCOR11847

• Permit No: C1981011
• IBM Index Class Name: Application Correspondence
• Doc Date: 4/15/1982
• Doc Name: 2ND ADEQUACY REVIEW
• From: MLR
• To: SUNLAND MINING CORP
• Media Type: D
• Archive: No

Mr. Dave Canning
Page Nine
April 15, 1982
Determining Revegetation Success (cont'd)
From the Apex qualitative description Trout Creek appears to have
followed many channels through the valley as a result of flooding,
desposition of trash, and beaver activity. Thereby creating a
swampy and we[ environment. Plants in the area adjacent to the
Apex mine, cottonwoods, willows and various sedges are all indicative
of high moisture levels in the valley bottom. The narrow valley
bottom meets the steep hillslopes at both sides. At Apex, the
adjacent south-facing slope is covered with a mixed mountain shrub
community, dominated by Gambles oak. Approximately 4 acres of
the total mine disturbance is along the valley bottom and the
remaining 1.6 acers are on the hillside.
If Sunland Mining Corporation accepts the Division's recommended
standards, as discussed below, they must be incorporated into the
permit application.
4.15.8 Revegetation Success Criteria Cover and Productivity
The Division has developed to-+o community standards for the Apex
mine; one for the moist valley bottom and the other far the
mixed mountain shrub community on the hillside. Pre-mining data
from the adjacent mines were averaged to set standards at Apex
for herbaceous cover and productivity as identified below:
Herbaceous cover Valle Bottom Hillside
Herbaceous productivity 3500 lbs/acre 500 lbs./acre
Species diversity
The demonstrate that adequate species diversity has been achieved
on the revege[ated area the following standards is recommended.
Using relative cover or production values for each species, the
reclaimed areas must have at least 4 perennial species with relative
importance equal to or greater than 30%, but with all species
combined not to exceed 75% in relative importance. Any one of the ,
4 species cannot exceed 40% in relative importance.
Shrub density
The landowner has requested that no shrubs be planted on the reclaimed
area. Since he has requested this and the post-mining land use of
grazing land/wildlife habitat will be ehanced by an open area no
further woody plant density information is needed. The adjacent
area is characterized by dense shrub communities wnich will provide
sufficient cover and edge effect for wildlife. The reclaimed
area will provide herbaceous forage with preferred browse species.
Therefore, the Division is recommending that Sunland Mining Corporation
retain the shrub seedlings as proposed in the reclamation plan.