2011-01-02_APPLICATION CORRESPONDENCE - C2010089

• Permit No: C2010089
• IBM Index Class Name: Application Correspondence
• Doc Date: 1/2/2011
• Doc Name: Adequacy Review Memo 2
• From: Mike Boulay
• To: Marcia Talvitie
• Email Name: MPB
• Email Name: MLT
• Email Name: SB1
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
COLORADO
Phone: [phone]
D I V t S t O N O F
RECLAMATION
FAX: [phone]
MINING
— fit-- -°
SAFETY
INTEROFFICE MEMORANDUM
Bill Ritter, Jr.
Governor
Mike King
Executive Director
TO: Marcia Talvitie
Loretta E. Pineda
Director
FROM: Mike Boulay M ,3
DATE: January 2, 2011
SUBJECT: Western Fuels- Colorado, New Horizon North Mine (Permit No. C- 2010 -089),
New Permit Application
I have reviewed Sections 2.04.5 and 2.04.6 of Western Fuels- Colorado's (WPC's) New Horizon
North Mine permit application and submitted comments to you in my memorandum dated
December 23, 2010. 1 also just completed my review of Sections 2.04.7 and 2.05.6(3) and have the
following comments.
2.04.7 Hydrology Descri tion
In the second paragraph on page 2 of Section 2.04.7, WPC states that completion diagrams
for nine new monitoring wells are contained in Appendix 2.04.7 -1. Actually only "typical"
completion diagrams were provided one for each of three monitoring zones. Please correct
the statement on page 2 as follows: "Typical completion diagrams one each for the
overburden, coal zone, and underburden well completion monitoring zones are provided in
Figure 1 of Appendix 2.04.7 -1."
2. The application should contain the specific well completion information for each of the nine
new monitoring wells. Table 1 in Appendix 2.04.7 -1 is titled "Proposed Ground Water
Monitoring Hole Locations and Depths" and contains "Estimated Monitoring Hole Depths ".
This table should be replaced since the wells have been drilled and constructed. Please add
a well completion information table to Appendix 2.04.7 -1 that at a minimum contains the
following information for each monitoring well: well identification/location, formation
monitored, total depth, well casing type and diameter, ground elevation, casing stickup or
measuring point elevation, and slotted interval.
3. There is a typographical error on page 2. In the second paragraph, WFC states that
"...water quality monitoring began immediately upon completion of these 9 holes on
October 10, 2010." This should read "October 10, 2008 ".
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines