2014-01-14_REPORT - C1981019 ‎(3)‎

• Permit No: C1981019
• IBM Index Class Name: REPORT
• Doc Date: 1/14/2014
• Doc Name: 2012 Annual Hydrology Report Responses
• From: TRI-State Generation and Transmission Association, Inc
• To: DRMS
• Annual Report Year: 2012
• Permit Index Doc Type: Hydrology Report
• Email Name: RDZ
• Email Name: DIH
• Media Type: D
• Archive: No

Mr. Rob Zuber
January 8, 2014
Page 3
DRMS Item 7: Some of the trends (increasing or decreasing) in the data tables on pages 2 -3 to 2 -7 are
not reliable given the low k values. The Division recommends that unreliable trends not be reported in
future AHRs.
Response: Colowyo will discontinue reporting the trending information on pages 2 -3 to 2 -7 beginning
with the 2013 AHR.
DRMS Item 8: In future AHRs, the discussion on spoil springs should include a discussion of known
locations of these features.
Response: A general location describing spoils springs will be included in all future AHRs as requested.
If you have any additional questions or concerns, please contact Chris Gilbreath at (303) 254-
3291 or cgilbreath @tristategt.org.
Sincerely,
Barbara A. Walz U
Senior Vice President
Policy and Compliance
Chief Compliance Officer
BAW:TT:pvt
cc: Chris Gilbreath (via email)
Tony Tennyson (via email)
AN EQUAL OPPORTUNITY I AFFIRMATIVE ACTION EMPLOYER
A Touchstone Eneigy'Ckoperati%e t;