2011-09-16_APPLICATION CORRESPONDENCE - C2010089 ‎(2)‎

• Permit No: C2010089
• IBM Index Class Name: APPLICATION CORRESPONDENCE
• Doc Date: 9/16/2011
• Doc Name: Preliminary Adequacy Review No. 2A
• From: DRMS
• To: Western Fuels Association, Inc
• Email Name: MLT
• Email Name: SB1
• Media Type: D
• Archive: No

DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
16 September 2011
Murari Shrestha, P.E.
Western Fuels Association, Inc.
1100 W 116 Ave.
Westminster, CO 80234
Re: Permit Application Number C- 2010 -089 — New Horizon North Mine
Preliminary Adequacy Review No. 2A
Dear Mr. Shrestha;
The Division issued the second Adequacy Review for the New Horizon North Mine on
September 9, 2011. As we discussed yesterday, after mailing the letter, I became aware of two
questions that were not included. These two questions are provided below. The Western Fuels -
Colorado response to question 2. in Section 2.05.3(6) also remains to be reviewed and there may
be an additional question after the review of that section is completed.
2.05.4 — Reclamation Plan
2.05.4(2)(e) — Revegetation plan
5. A distinction was made in Section 2.04.10, page 31 -33, between Irrigated Pasture (IP) and
Intensively Managed Irrigated Pasture (IMIP). It is explained that a reference area approach
will be used for the IP areas and a "Historic Record" method will be used for IMIP areas. In
Section 2.05.4(2)(e) the distinction between the two different land management practices is
not as clear. Revegetation methods, Success Criteria and Success Demonstrations are
explained for the IP areas, but are not explained for the IMIP areas. Please include in the
PAP an explanation of the Revegetation methods, Seeding Procedures, Bond Liability
Period Management, Soil Analysis, Success Criteria, Success Demonstrations and how the
"Historical Record" will be utilized for the IMIP areas.
2.05.6 — Mitigation of the Impacts of Mining Operations
2.05.6(3) — Protection of hydrological balance
25a. The CDPHE receiving stream standards for Segment 12 of the San Miguel River include
standards for certain heavy metals that do not appear in the surface water baseline data of
Appendix 2.04.7(2) or in the operational monitoring program presented in Table 3 of
Appendix 2.05.6(3) -3. These heavy metals include arsenic, boron, cadmium, chromium
III, chromium IV, copper, cyanide, mercury, nickel, silver, uranium and zinc.
Office of
Mined Land Reclamation
STATE OF COLORADO
COLORADO
DIVISION OE
RECLAMATION
MINING
— &—
SAFETY
Office of
Denver • Grand Junction • Durango Active and Inactive Mines