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GENERAL45453
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GENERAL45453
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Last modified
8/24/2016 8:14:47 PM
Creation date
11/23/2007 1:51:32 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980005
IBM Index Class Name
General Documents
Doc Date
12/27/2006
Doc Name
Proposed Decision & Findings of Compliance for SL1
From
Phase I
Permit Index Doc Type
Findings
Media Type
D
Archive
No
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or by the Post-Mine Channel PM-5 drainage on the south. In the vicinity of the final pit, the land has <br />been graded into a bowl shaped configuration. Water is impounded in the bottom of the bowl and is <br />referred to as the old Wolf Creek Pond. A water sample was collected from the northwest comer of <br />the pond on August 11, 2006 by DRMS and analyzed on-site for pH, conductivity and temperature. <br />The pH/conductivity meter was calibrated at 08:30 on the moming of the inspection at the SCC Mine <br />office. A duplicate sample was taken from the approximate same location and the sample results are <br />tabulated below. It appears that this pond may drain to the north when the water level reaches a <br />higher level. <br />Field Parameters Sam le #1 Sam le #2 <br />Field H S.U. 3.59 3.48 <br />Tem erature C 23.1 22 <br />Conductivi umhos/cm 610 640 <br />The impounded water does present a problem due to its acidity. The applicable rules (at the time of <br />mining) require that acid forming and toxic producing material had to be handled to protect the <br />drainage system from pollution. Further, the impoundment does not meet current requirements of <br />Rule 4.05.9. <br />The entire upper Wolf Creek azea was traversed. There aze remnants of a shrub plot above and east <br />of the pond. Contour furrows were dug above the shrub plot to protect it from erosion. There ate <br />numerous rills above and north of the shrub plot, and two lazge erosion gullies on either side of the <br />plot. The gully to the south of the shrub plot was measured to be 4.5 feet deep. The gully to north of <br />the shrub plot was up to 7 feet deep. Spoil was cast onto previously undisturbed ground to the north <br />and south of the bowl area. There aze steep drainages to the north and south on either side of the old <br />Wolf Creek Pit. Spoil on the north side does not blend well with the surrounding landscape and at <br />least one lazge crack and a gully were noted in the spoil on the north. Spoil cast to the south drainage <br />blends in better with the surrounding topography than on the north side. There also appears to be <br />spoil cast from the lower pre-law azeas along the canyon to the south from the start ofPost-Mine <br />Channel PM-5 up to an undisturbed azea below the old Wolf Creek Pit. This azea along the canyon to <br />the south does appear more stable with adequate vegetation. <br />Summary and Conclusions <br />The DRMS has completed its review and evaluation of the Phase I bond release request submitted by <br />SCC for the Seneca II Mine. Two specific azeas as described in this document do not meet the criteria <br />for Phase 1 bond release. These areas are referred to as the East Wadge Pit azea and the old Wolf Creek <br />Pit and are shown on Figure 1 of this document. Based upon a review of the mine permit, the <br />applicant's bond release application, and site inspections, the DRMS finds that SCC has completed <br />backfilling, grading and drainage reestablishment at all other azeas of the Seneca II Mine for which <br />Phase I bond release was requested in accordance with the approved reclamation plan. With exception <br />of the East Wadge Pit azea and the old Wolf Creek Pit, backfilled and graded azeas and reconstructed <br />drainages throughout the reclaimed acreages remain in good condition with maintenance needed on <br />limited azeas noted previously in this document. <br />15 <br />
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