APPCOR11530

• Permit No: C1982056
• IBM Index Class Name: Application Correspondence
• Doc Date: 2/17/1983
• Doc Name: MEMO CYCCS RESPONSE TO ADEQUACY REVIEW FOIDEL CREEK MINE
• From: MLRD
• To: SANDY EMRICH & ED BISCHOFF
• Media Type: D
• Archive: No

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DEPARTMENT OF NATURAL RESOURCES
D Monle Pascoe, Executive Director
MINED LAND RECLAMATION DIVISION
DAVID C. SHELTON Director
R ¢hartl D. Lamm
Governor
TD:
Sandy Emrich and Ed Bischoff
FROM: Jerry Zimpfer/~~-+''~
RE: CYCC's Responsyye to
DATE: February 17, 1983
Adequacy Review, Foidel Creek Mine
I have completed my review of Colorado Yampa Coal Company's (CYCC)
January 31, 1983 response to our December Adequacy review. The applicant
has provided sufficient information to resolve many of the items
identified during our review. However, the applicant's discussion of
probable hydrologic consequences is still not adequate, and additional
information and analysis must be provided by the applicant. My review
comments, provided below, are arranged according to the format of our
December adequacy letter.
V. Hvdroloov Descriotion - Surface Water Information
1) The applicant has not demonstrated that the spring survey based
upon published USGA data is, by itself, adequate for this
particular operation. However, the applicant states that CYCC
personnel have conducted their own spring survey in conjunction
with other hydrologic studies, and that the two springs
identified by the USGS are "the only natural springs found in
the pernit area which adjoin the proposed Foidel Creek Mine
operation". In addition, the applicant has expanded his
proposed hydrologic monitoring program to include periodic
monitoring of the springs for quantity and quality. Given the
low probability of the proposed mining operation affecting these
springs, the applicant's response is satisfactory.
2) The applicant has requested that the Division proceed with its
review of the section on Alternative Water Supply Information.
Unfortunately that is not possible at this time. Several items
in the applicant's discussion of Probable Hydrologic
Consequences remain inadequate, and, as a result, the full
extent of possible hydrologic effects has not been defined.
Until those hydrologic effects are better understood, the
Division cannot determine which effects might require mitigation
in terms of alternative water supply.
3) The applicant has provided the infonmatiotl requested concerning
irrigation ditches along Fish Creek and Foidel Creek.
423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. [phone]