2008-06-02_REVISION - M1998034

• Permit No: M1998034
• IBM Index Class Name: REVISION
• Doc Date: 6/2/2008
• Doc Name: TR application
• From: Applegate Group, Inc.
• To: DRMS
• Type & Sequence: TR1
• Email Name: THM
• Media Type: D
• Archive: No

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Applegate
Group, Inc -
May-30,2008
a
JUN D ZOOg
Colorado Department of Natural Resources n Reclamation A
Divi ttnslM oTrav is 1VlarshalMining, and Safety d Sam tioi _
1313 Sherman Street, Room 215
Denver, CO 80203
Re: Parshall Pit, Permit No. M-1998-034, Completeness of 1100 Construction Materials
Reclamation Permit Technical Revision Application, TR-01
Dear Mr: Marshall: S C>A NN V
The following discussion and attachments are .submitted on behalf. of our client, Mountain Park
Concrete, Inc., in response to the Technical. Revision comments prepared by 'the Division
of Reclamation, Mining; and Safety (DRMS) dated May 16th, 2008 for the Parshall Pit. The
information and discussion below address each comment as it was presented by the Division:
1. Please supply a detailed diagram that gives the design and actual dimensions of the
water-clarification system.
A .diagram depicting the water clarification system is included. The clarifier
system is approximately 73 feet long and 10.5 feet- wide with a maximum height
of 16 feet 9 inches. Along the length of the clarifier, the height of the system. is
just less than 9 feet. The clarification system is-composed of a clarifier system,
and polymer system of which the 'specified empty weight of the clarifier system is.
approximately 38,000 -lbs and the empty weight of the polymer system is
approximately 5,100 lbs. The operating weights when full of water and polymer
are 189,100 lbs and 23,7001bs, respectively. The water clarification system pump
motors will operate at 14.25 horsepower, which includes the hydraulic pump,
polymer, transfer pump, polymer metering pump, and mud bin pump. The system
-will require three phase, 460 volts for electrical power.
2. Please clarify how the water clarification system will be used in the approved post mine
land use of rangeland. "
Upon completion of the mining operation, the water clarification system will be
removed. The building housing the water clarification system will remain on site.
-1499 West 120th Avenue, Suite 200 [phone] • Fax [phone]
Denver, Colorado 80234-2759 www.applegategroup.corn