ENFORCE33315

• Permit No: C1982056
• IBM Index Class Name: Enforcement
• Doc Date: 2/8/2001
• Doc Name: INTEROFFICE MEMO 2000 ANNUAL HYDROLOGY REPORT FOIDEL CREEK MINE C-82-056
• From: DMG
• To: JANET BINNS
• Violation No.: CV2001004
• Media Type: D
• Archive: No

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DIVISION OF MINERALS AND GEOLOGY
Depanmem of Na Nral Resources
1313 Sherman 8L. Room 215
Denver, Colorarb 80207
Phone: [phone]i5:
~n~e~'b~fi~~SMemo
DIVISION OF
MINERALS
GEOLOGY
RECLAMATION
MINING•SAFETY
To: Janet Binns ~_~
Bil I

From: j~.
Kent Gorham ~I~+'~~ Owens
eovemor
Date: 02/08/01 Greg E. Watcher
Executive Director
Re: #C-82-056
2000 Annual Hydrology Report
Foidel Creek Mine c
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I conducted a more focused review of the TCC 2000 AHR regarding monitoring
requirements from both text and tables in Exhibit 14 as compared against data
submitted. This was not a complete, detailed review. I will do that once we determine
what, if any, additional data TCC has, but did not submit. Here is what I found;
Bedrock and Alluvial Wells
Some minor discrepancies between the text and tables were noted but it is unrelated
to the 2000 AHR submittal. It can be cleaned up at the next opportunity. In nearly all
cases, no significant misses occurred for sampling of bedrock and alluvial wells. One
exception is water level for well 97012TM. The notation lists a hydrant malfunction
preventing the well from holding pressure. This was noted on each of four sampling
events. The question would be why this was not this repaired at some time during
the water year. I can ask this question later.
Surface water sites
Text on page 14.2 of Exhibit 14 (approved 2/8/2000, TR99-32) clearly indicates
sampling 12 times for flow and field parameters and four full suite samples. It even
breaks out that the field parameter sampling will be done in a particular month and
that the full suite quality samples will be collected in March, June ,August, and
September. Checking the text against the Table A presented on page 14-8 shows
no inconsistencies in the table or footnote(1).
Generally, actual 2000 sampling consisted of eight field samples and two full suite
samples for sites 800, 8, 900, 14, 1002, 27A, 1003, 1005, 301, 69, MC-1, 700. Extra
field readings were recorded at some of the sites affected by the weekly/ monthly
plan associated with mine water discharge. (I have not reviewed that information in
detail for compliance). Sites 301, 69, and 1005 full suite samples were taken in June
and July. {as a note; two samples taken this close together, while meeting the
quarterly requirement, are not as meaningful as samples taken 3 months apart
(quarterly).} Text on page 14.3 states samples at 302, 301, 69, and 1005 will be
STATE OF COLORADO
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