REV15451

• Permit No: C1982057
• IBM Index Class Name: Revision
• Doc Date: 2/26/1999
• Doc Name: SENECA II-W PN C-82-057 PR2
• From: DMG
• To: SENECA COAL CO
• Type & Sequence: PR2
• Media Type: D
• Archive: No

Seneca II-w. F'R-,
February 26. 1999
Pace d
2.05.4(21(e) ReveEetation Plan
IS. Response accepted.
19. Response accepted.
20. Response accepted.
Zl. Response accepted.
21a. Several revised pages in Tab 22 were resubmitted with the adequacy response. A review
of these pages found that the justitication for the use of introduced species was deleted on
revised pages 27 and 28. Please reinsert this section.
2.05.6(3) Protection of HvdroloQical Balance
22. Response accepted.
23. To verify the conclusions presented in Tab 16 of the permit application package, the
Division believes that monitoring of the Wadge overburden is necessary. Monitoring of
the Wadge overburden in the vicinity of the proposed II-W South extension will be
required. Please provide a plan to install one additional Wadge overburden monitoring
well in or adjacent to the proposed extension area. The monitoring well should be
located down gradient from the proposed pit areas.
24. The Division has previously made the findings that the canyon in Hubberson Gulch
located between well SW-S2W-6A2 (6A2) upstream to the proposed location of Pond
Ol7 meets the criteria for designation as an alluvial valley floor. The Division's Findings
of Compliance dated February, 1996 states that all lands mapped as Qa and Qvf on
Exhibit 16-2 are considered to alluvial valley floors. Therefore, SCC should monitor [he
alluvium along this portion of Hubberson Gulch or provide a suitable demonstration (in
accordance with Rule 2.06.8) that [his portion of Hubberson Gulch is not an AVF. Please
provide a plan for installing one additional alluvial monitoring well upstream of the
existing monitoring well 6A2 or provide additional data and information sufficient for
demonstrating that this portion of Hubberson Gulch is not an alluvial valley floor.
25. Response accepted.
26. Response accepted. It is very important that wells 4W and 4WC remain operable
because they provide the only monitoring for the Wade and Wolf Creek coal seams for
the entire II-W South area.
27. To provide data for comparative analysis with monitoring locations down gradient of
disturbed areas and to identify any changing conditions not related to mining, Site SG9