GENERAL47100

• Permit No: C1981026
• IBM Index Class Name: General Documents
• Doc Date: 12/21/1995
• Doc Name: Proposed Decision & Findings of Compliance for SL3
• From: Phase II
• Permit Index Doc Type: Findings
• Media Type: D
• Archive: No

The revegetated community at the mine appears to be well on its way toward meeting the
approved success standazd for diversity.
In addition to a cover standazd, the Canadian Mine permit also includes a woody stem
density success standazd of 2000 stems per acre. The 1995 Slurco study estimated there
were 497 stems per acre on the reclaimed area. Neazly all of the woody plants on the mine
site aze Big sagebrush (Artemisia tridentata), with rare specimens of Rubber rabbitbrush
(Chrysothamnus nauseosus). Based on vegetation monitoring data collected by the operator,
woody stem densities have apparently been increasing since shrub interseeding efforts were
undertaken in 1990 or 1991.
At the October 24, 1995 on-site inspection, the Division found no significant differences in
the levels of erosion occurring at either Area IV or Pond 3 as compared to the erosion
levels described for Area IV in the Division's Phase II Bond Release decision document of
August 1, 1991. The Division further found no significant problems associated with
landfotm stability in either Area IV or Pond 3. The Division documented that the single
soil settlement feature that was seen within the Pond 2 basin in Area IV appeared stable and
of little concern to future geomorphic stability.
V. Proposed Decision
The Division proposes the following in conjunction with the Phase II Bond Release request
submitted on September 7, 1995:
A. The Division proposes to grant a Phase II Bond Release for the 55.13-acre parcel
known as Area IV;
B. The Division proposes to grant a Phase II Bond Release for the 2.06-acre parcel
known as Pond 3;
C. The Division proposes to document herein and for the record a Phase I Bond
Release for Pond 3. Phase I Bond Release for Pond 3 was previously approved
indirectly as part of the Division's approval of a 1988 Phase I Bond Release for the
entire mine site, when the Division returned Phase I monies for the backfilling and
grading of Pond 3 at that time, even though Pond 3 was still in place. The removal
and reclamation of Pond 3 was approved, and occurred, in the spring of 1991.
D. The Division proposes to doctment herein and for the record a release of Phase I
liability for Ponds 1 and 2. A release of Phase I -iability for Ponds 1 and 2 was
previously approved indirectly as part of the Division's 1988 Phase I Bond Release
for the entire mine site, when the Division returned monies for the backfilling and
grading of Ponds 1 and 2 at that time, even though Ponds 1 and 2 were still
standing. Release of Phase I liability for Ponds 1 and 2 was also previously
approved indirectly as part of the Division's 1991 approval of Technical Revision
TR-06, which allowed Ponds 1 and 2 to remain as permanent structures.
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