PERMFILE120771

• Permit No: M2005071
• IBM Index Class Name: Permit File
• Doc Date: 10/25/2006
• Doc Name: Addendum to the Vibration Monitoring Plan
• From: MVR Resources, Inc.
• To: DRMS
• Media Type: D
• Archive: No

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October 19, 2006
Steve S. Shuey ~/
Division of Minerals and Geology
Grand Junction Field Office
101 South Third Street, Room 301
Grand Junction, CO 81501
RECEIVED
ocT a 5 Zoos /
~q,AArCCT10N Fl[]D OFFICE
SaFCIAMATION ~ 8 SAFELY
RE: Monitoring_Plan to Characterize Attenuation of Ground Motions Generated by
Mechanical Equipment Oneratin¢ at the Benson Brothers Red Shale Ouarrv, Colorado
Mined Land Reclamation Permit #M-2005-071 /
Dear Mr. Shuey, /
We are submitting this~addendum to th ibration Monitoring Plan~previously submitted
by Revey Associates,Inc. for the Benson rothers Red Shale Pit in order to comply with
the conditional approval of the Mined Land Reclamation boazd on May 10, 2006 and the
Board ruling on the Motion for Clarification on September 13, 2006.
After initial monitoring of vibrations on site to characterize attenuation of ground
motions generated by mechanical equipment operating at the Benson Brothers Red Shale
Quarry as proposed by Mr. Gotdon Revey of Revey Associates, Inc., monitoring will
continue for 30 days by activating one automatic recording seismograph while
mechanical equipment is being operated in the quarry. It is understood that normal
crushing or ripping activity for a thirty day period may only be 3 to 5 days. The location
of this seismograph will be determined by Mr. Revey in consultation with Division of
Mining, Reclamation and Safety representatives. The seismograph and operation
instruction will be provided by Saza Nation of PreSeisTek, Inc. Data evaluation and
reporting will be accomplished as specified in the previously submitted plan.
Respectfully submitted,
OrT s u zu~~i
Michael Ripp
Division o. 'leciamstion,
Mining and Safety
S

P.O. Box 54 • Delta, CO 81416
[phone] • Fax: [phone] • e-mail: mvtipp~aol.com