PERMFILE124030

• Permit No: C1981034
• IBM Index Class Name: Permit File
• Doc Date: 9/9/1982
• Section_Exhibit Name: APPENDIX I Hydrology & Alluvial Valley Floor Report, Kaman Tempo 9/82
• Media Type: D
• Archive: No

1 Mr. Larry Reschke -4- January 13, 1982
' Additional information could be required during the review process. The
data requirements might be Iess for Alluvial Valley Floors Iocated adjacent
' t~~ the permit area.
The application should also include a plan to monitor the hydrology and
productivity of the Alluvial Valley Floor as required under Rule 4.74. p. 95
The above information would be used, a]ong with the applicant's statement
of Probable Hydrologic Consequences, to make the required statutory
' findings prior to a permit being issued. The required findings (Rule
2.06.8(5)(a)) are that the proposed coal mining operations would not
interrupt, discontinue, or preclude farming on the Alluvial Valley Floor,
' unless..., and that the proposed surface coal mining operations would not pP, 91-95
materially damage the quantity and quality of water in surface and
ground water systems that supply those Alluvial Valley Floors or portions
of Alluvial Valley Floors...
' The applicant should be made aware that if these findings cannot be made
by the Division, mining in or adjacent to an Alluvial valley Floor (this
' includes mining beneath) would be denied.
Underground Development waste (Rule 2.05.3(9))
' The slope stability analysis of the proposed expanded waste disposal pile
satisfies the concerns expressed in the Pre]iminary Adequacy Review (GMCC)
letter of May 8, 2981.
' The stability analysis did not reference tl~e installation of ground water
monitoring wells. Such wells would be required to monitor quality and water p, 66
' table evaluation below the proposed disposal pile. The location of Test
!role -2, depicted on the drawing entitled "Test Doring Location Diagram",
included in Volume 6 of the amended application, represents an acceptable
location for such a monitoring well. If that test hole has not been back-
, filled, it could be appropriately and completed to use as a ground water
monitoring well.
' Subsidence (Rule 2.05.6(6) and 4.20)
One potentially major deficiency and several minor deficiencies remain within(GMCC)
' the subsidence sections of the application.
I) "Potential Impacts Upon the Nyydrologic Balance of the Surfici_a1 Aquifer
of Ward Creek"
' The surficial aquifer of Ward Creek will be undermined by the proposed under p 5B
ground workings of the Red Canyon No. 1 and No. 2 mines. Severe roof stabtlity(GMCC)
problems were encountered while driving the No. 1 west submains toward Ward
Creek in the southwest quarter of the northeast quarter of Section 11. The
company informed the Division by telephone and letter of this difficulty
and requested permission to drill 2 exploratory drill holes. The results of
that coring project were to be used to redesign the mining plan. These

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