REP41107

• Permit No: C1982056
• IBM Index Class Name: Report
• Doc Date: 2/8/2001
• Doc Name: 2000 AHR Review Memo
• From: Kent Gorham
• To: Janet Binns
• Annual Report Year: 2000
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Doc Date:1 211 112 0 0 1
STATE OF
DIVISION OF MINERALS AND GEOLOGY
Departmen[of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
fr1~t~4~b~#i~~6Memo
DIVISION OF
MINERALS
GEOLOGY
RECLAMATION
MINING•SAFETY
Bill Owens
Governor
Date: 02/08/01 Greg E. watcher
Executive Director
Re: 2000 Annual H drolo Rer~ort, Foidel Creek Mine, #C-82-056
y gy p Michael B. Long
Division Director
To: Janet Binns
From: Kent Gorham- ~~~
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 ever
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 infonnation 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
II I' II I II I II IIII II~
999
COLORADO
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