2003-07-22_REVISION - M1977208

• Permit No: M1977208
• IBM Index Class Name: Revision
• Doc Date: 7/22/2003
• Doc Name: Adequacy Letter #2
• From: DMG
• To: CEMEX Inc
• Type & Sequence: TR2
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
July 22, 2003
Mr. John Lohr
CEMEX Inc.
P.O. Box 529
Lyons, CO 80540
RE: CEMEX, Inc.; Lyons Quarry, Permit No. M-1977-208
Technical Revision 02; Adequacy Letter #2
Dear Mr. Lohr,
COLORADO
DIVISION OF
MINERALS
GEOLOGY
RECLAMATION•MINING
SAFETY•SCIEN CE
Bill Owens
Governor
Greg E. Walther
Executive Director
Ronald W. Cattany
Division Director
Natural Resource Trustee
The Division received the adequacy response prepared by Banks & Gesso, LLC. for Technical
Revision (TR-02) for the Lyons Quarry, Permit No. M-1977-208. The letter was in response to the
Division's adequacy comments dated June 30, 2003.
The revision request on-site disposal of concrete rubble at the close and demolition of the concrete
plant. The revised text and drawings state that the Smeade Ditch will be piped through the disposal
azea for a length of approximately 700 feet. The Division has a number of questions regarding the
piping of the Smeade Ditch;
Please inform the Division as to the owner(s) of the Smeade Ditch and the owner(s) of the
associated water rights within the Ditch. Because the Smeade Ditch will be altered and
conveyed under the concrete disposal site, CEMEX will need to obtain a notarized agreement
from the owner(s) of the Smeade Ditch and owner(s) of the water rights within the Ditch
concurring with the proposed relocation plan. Rerouting of the Ditch under the concrete
disposal site cannot be approved without consent from all owner(s) of the Smeade Ditch and all
owner(s) of the water rights within the Ditch.
CEMEX will need to provide a design demonstrating that the pipe redirecting the Smeade Ditch
under the concrete pile can beaz the maximum load of the concrete rubble and earth fill ranging
in height from 20 to 45 feet. In addition, please further describe the type of pipe to be used, size
of the pipe, length of the pipe, the location of the pipe in relation to the compacted clay liner,
grade of the pipe, inflow and outflow specifications of the pipe, and how it will be protected
during construction of the concrete fill pile. Please provide a new cross-section of the disposal
area to include the information noted above.
3. Please describe the anticipated flow rate associated with the Smeade Ditch. CEMEX will need
to address long-term maintenance of the Ditch and demonstrate that owners of existing water
rights will not be affected by the alteration of the Ditch.
Office of Office of Colorado
Mined Land Reclamation Active and Inactive Mines Geological Survey