2008-10-17_PERMIT FILE - M2008017

• Permit No: M2008017
• IBM Index Class Name: PERMIT FILE
• Doc Date: 10/17/2008
• Doc Name: Adequacy Review Response
• From: J&T Consulting, Inc.
• To: DRMS
• Email Name: MAC
• Media Type: D
• Archive: No

Broken Arrow Investments, LLC Derr Pit, Adequacy Review Comment Responses, File No. M-2008-017 10117108
-3-
Response:
The mining plan map has been revised to indicate the type of present vegetation
covering the land. Please refer to the revised Exhibit C.
7. The division requests that the applicant include the depth to the water table for
each phase of mining. In addition please include the dewatering discharge
setup for each phase.
Response:
The depth to the water table for each phase of mining will be pumped down to a level
of approximately 3 feet below the pit bottom as the phase is mined. The dewatering
and discharge setup will be lowered along with the dewatering trench around the
perimeter of the phase being mined to the toe of the 3H:1 V mining slope. The slurry
wall is anticipated to be installed prior to Phase 2 being mined, and it is expected
minimal dewatering will be required in the subsequent phases due to the slurry wall
cutting off groundwater infiltration into the pit. The mining plan map has been revised
to show a typical dewatering discharge setup. Please refer to the revised Exhibit C.
8. Rule 6.4.3(8) requires the applicant to identify owners of any significant,
valuable, and permanent man-made structures within two hundred feet of the
affected land. Please provide the owner's name with any associated structures
on the Mining Plan Map.
Response:
The mining plan map has been revised to indicate the owner's of permanent man-
made structures within 200 feet of the affected land. Please refer to the revised
Exhibit C.
9. The applicant indicates that handling of fuel will conform to all local, State and
Federal regulations. The operator must indicate that there is a Spill Prevention
Control and Countermeasure (SPCC) plan in place and that the SPCC plan will
be implemented prior to storage of fuel or oil products. This can be done by
submitting a letter to the Division, on company letterhead, affirmatively stating
that the plan has been implemented. The operator does not need to submit a
SPCC plan to the Division; however it must be available for review at the
facility or the nearest field office during an inspection conducted during
normal business hours.
Response:
The applicant has provided a letter attached stating they have a SPCC plan and it
will be implemented for the proposed mine.
10. The mining plan indicates that the overburden piles will be stored within the
proposed mining area. Please clarify that the overburden and topsoil
stockpiles will be separated and stored individually. In addition, identify and
label the location of the stockpiles on the mining plan maps.
Response:
The mining plan and maps have been revised to indicate the location of stockpiles
and the stockpiles have been labeled to identify them. The overburden and topsoil
V 1400 W 122nd Avenue - Suite 120 • Westminster CO 80234 • Ph: 303-457-0735 • Fax: [phone]