2018-02-09_GENERAL DOCUMENTS - C1994082

• Permit No: C1994082
• IBM Index Class Name: General Documents
• Doc Date: 2/9/2018
• Doc Name Note: For ‎(SL6)‎
• Doc Name: Proposed Decision and Findings of Compliance
• From: DRMS
• To: Seneca Property LLC
• Permit Index Doc Type: Findings
• Email Name: JDM
• Media Type: D
• Archive: No

Permit Number C-1994-082 Page 16 of 17
whether pollution of surface or subsurface water is occurring, the probability of future occurrence of
such pollution, and the estimated cost of abating such pollution.

Based on the review of the water monitoring data for the SL-6 Phase III Bond release area of the
Yoast Mine, the observed hydrological impacts are consistent with those predicted in the probable
hydrologic consequences (PHC) section of the permit, C-1994-082. The SL-6 Phase III release areas
are in the upper drainage basins of the disturbance areas and only contain areas of ephemeral
drainages and one stock pond. The Phase III areas drain through portions of the disturbance areas
which have yet to receive Phase I or II bond release.

Water pollution is not occurring from the SL-6 Phase III bond release area of the Yoast Mine and,
based on a review of the monitoring data and on-the-ground observations, there is no potential for
future water pollution from the bond release area. Water quality at the alluvial Ground Water Point
of Compliance well is within the prescribed limits. Based on the foregoing observations regarding
hydrologic impacts, the Division finds SPL has minimized disturbance of the hydrologic balance in
the bond release area and adjacent areas, and prevented material damage outside the permit area.

Summary and Conclusions

Based upon a review of the mine permit, the applicant's bond release application, and site inspections,
the Division finds that Seneca Property, LLC has successfully completed all surface coal mining
reclamation operations in accordance with the approved reclamation plan and met all requirements of the
Act and the Rules.

IV. PROPOSED DECISION

Based on the observations above, the Division proposes to approve SPL's request for a partial Phase I
and partial Phase III bond release for the Yoast Mine. This proposed decision will release the applicant
from Phase I liability for backfilling, regrading, and drainage re-establishment for 76.5 acres of
previously unreleased lands. In addition, this proposed decision will release the applicant from liability
for all liability associated with 275.4 acres previously approved for Phase I and II bond release.

Table 1 – Bond Release History

Yoast Mine C-1994-082
Bond Release History
Bond Release Acreage
Total
Disturbed
Phase I
Released
Phase I
Remaining
Phase II
Released
Phase II
Remaining
Phase III
Released
Phase III
Remaining
SL-1 850.5 173.02 677.48 0 850.5 0 850.5
SL-2 850.5 456.70 220.78 0 850.5 0 850.5
SL-3 850.5 0 220.78 592.00 258.50 0 850.5
SL-4 850.5 115.5 105.28 0 258.50 0 850.5
SL-5 850.5 6.25 99.03 6.25 252.25 6.25 844.25
SL-6 850.5 76.5 22.53 0 252.25 275.4 568.85