REP38384

• Permit No: C1981033
• IBM Index Class Name: Report
• Doc Date: 3/30/1995
• Doc Name: 1992 1993 AND 1994 ANNUAL HYDROLOGY REPORT BEAR MINE
• From: DMG
• To: TONY WALDRON
• Annual Report Year: 1992
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

iii iiiiiiiiiiiu iii
999
STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
De{»nmeN of Natural Resources
1313 Sherman SI., Room 215

Denver. Colorado 80203 ~~~~
Phone: [phone]
FAX [phone]
DEPARTMENT OF
DATE: March 30, 1995 (Revised) FZE$ L7R~S
Roy Romer
TO: Tony Aaldron Governor
lames S Lochhea8
PROM: Christine Johnsto Executive Direuor
r
Michael B. Long
RE: 1992, 1993, and 1994 Annual Hydrology Report; Bear 1~'i'~°@4i`e"°`
Permit No. C-81-033
Pursuant to your request I have reviewed the 1993 and 1994 Annual
Hydrology Reports (AHR) for the Bear Mine. During the course of my
review, I discovered that the 1992 AHR had been reviewed but the
comments were not forwarded to the operator. So this memo also
addresses the 1992 AHR.
The alluvial well designations in the permit and the AHR are
reversed. On Map 10 in the permit, AA1 is shown as the well on the
west side of the facilities and AA3 is on the north side of the
facilities. On the map provided with the 1993 AHR, they have been
switched. In addition, the well data lists in the 1993 AHR that
correspond to the graphs have been reversed; the line for AA1 does
not match the data listed below the graph.. Also, the lab reports
in the 1993 and 1994 have been changed to reflect different sample
IDs. Please ask the operator to clarify the well designation and
correct the AHRs or the permit. The well that shows the poorer
quality is on the west side of the facilities and will be referred
to in this memo as AA3, which corresponds to the AHRs.
Monitorina Requirements and Freauencv
Bear Coal Company (BCC) has revised their monitoring plan twice.
The first revision occurred after the submittal of the 1992 AHR and
required monitoring the french drains for the 1993 AHR. The second
revision followed the submittal of 1993 AHR. Monthly flow and
field parameters for springs G-26A, G-26B, and CR-12 are now
required to be collected between May and November. The results of
this monitoring should appear in the 1994 AHR.
The monitoring plan for the 1993 AHR was on page 2.04-30b, revised
August 4, 1993. The monitoring plan for the 1994 AHR is also on
page 2.04-30b, revised March 4, 1994. Please see the enclosed
tables which contain the monitoring plan for each year and notes
made by me during the review.