2011-09-30_REVISION - M1981185

• Permit No: M1981185
• IBM Index Class Name: REVISION
• Doc Date: 9/30/2011
• Doc Name: Sixth adequacy letter ‎(CN-01)‎
• From: DRMS
• To: R Squared Incorporated
• Type & Sequence: CN1
• Email Name: WHE
• 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]
MEMORANDUM
STATE OF COLORADO
To: Wally Erickson
From: Tim Cazier, P.E.
Date: September 28, 2011
Re: May Day & Idaho Mine Complex Permit No. M- 1981 - 185 /CN -01,
Geotechnical Stability Exhibit Comments to the September 9, 2011 Response
to Comments
Mined Land Reclamation
COLORADO
D I V I S I O N O F
RECLAMATION
MINING
— &—
SAFETY
John W. Hickenlooper
Governor
Mike King
Executive Director
Loretta Pineda
Director
The Division of Reclamation, Mining and Safety (DRMS) engineering staff has reviewed the
September 9, 2011 responses ( "Response to August 19, 2011 Cazier Memorandum ") provided
by Greenberg Traurig to DRMS comments addressing Geotechnical Stability Exhibit comments
of the August 2011 submittal. The comments provided in this memorandum are posed to ensure
adequate engineering analyses and design practices are implemented in accordance with Rule
6.5
For clarity, DRMS references the Greenberg Traurig "Adequacy Issue No." for each of the
following comments:
Adequacy Issue No. 1: This response is inadequate. DRMS did not receive a new Attachment
D -2, Figure D -4. DRMS did receive a new Attachment D -2, Figure D -1A that indicates there
will be 21 sets in the area labeled "Mill Building ". However, this new figure does not delineate
the "point of contact of the unconsolidated material and the bedrock" as described in the
response. Please submit the aforementioned "point of contact" Attachment D -2, Figure D -4.
Adequacy Issue No. 2: The applicant has committed to resolving this adequacy issue.
However, they have not committed to addressing this adequacy issue in a TR or AM. Please
provide a written commitment to resolve this adequacy issue via the TR or AM process: The
revised text and five bulleted responses to this adequacy issue presented in the subject response
letter shall be included in the revised Geotechnical Stability Exhibit.
Adequacy Issue No. 3: The response to this issue is considered adequate.
Adequacy Issue No. 4: This response is inadequate. DRMS has previously reviewed the May
29, 2010 report and found it to be inadequate.
Adequacy Issue No. 5: The applicant has committed to resolving this adequacy issue.
However, they have not committed to addressing this adequacy issue in a TR or AM. Please
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