2008-12-23_REVISION - M2000016

• Permit No: M2000016
• IBM Index Class Name: REVISION
• Doc Date: 12/23/2008
• Doc Name: Additional Information
• From: Lafarge
• To: DRMS
• Type & Sequence: TR1
• Email Name: JLE
• Media Type: D
• Archive: No

l?
"FARG E
AEW AGGREGATES
& CONCRETE
December 22, 2008
Mr. Jared Ebert
IECENED
DEC 2 3 2008
Environmental Protection Specialist Division of Reclamation,
Division of Reclamation, Mining and Safety Mining and Safety
Department of Natural Resources
1313 Sherman Street, Room 215
Denver, CO 80203
RE: ACditional Information Regarding Riverbend Operation, DRMS File #M-2000-016,
Dear Jared:
This is in response to your request for additional information regarding Riverbend Operation,
DRMS File #M-2000-016, Technical Revision 01. According to your letter dated December 4,
2008 iwe needed to provide you with additional information regarding changes that will be made
to the final reclamation of the site and how the area will be mined. This additional information is
provided below. However, before getting into that explanation, I first wanted to explain an
adjustment to Technical Revision 01 that we need to make. According to our original Technical
Revision application documents dated November 26, 2008, we indicated that we would be
removing land located in the west half of the southeast quarter of Section 1, TIN, R67W and in
the northeast quarter of northwest quarter of Section 12, TIN, R67W from the permit boundary.
However, this will not be the case so please disregard this request. We have followed up per
your direction with an Acreage Reduction/Release Request which clarifies what areas of the
permit we do want to exclude from the permit boundary.
To address your request for additional information regarding changes in the Mining and
Reclamation Plans for the property, the Mining and Reclamation Plan maps included in our
November 26, 2008 Technical Revision application are accurate in showing how the property is
now proposed to be mined and reclaimed. These maps do not include any information for the
mining and reclamation of Phase 9, Cell l; therefore, all information shown on the currently
approved Mining and Reclamation Plan maps still apply to this cell. As I indicated in my
November 26, 2008 cover letter, the Mining and Reclamation Plans for the rest of the cells were
adjusted in response to Surface Use Agreements worked out with the Oil and Gas Companies
regarding future drilling sites. Following is an explanation of the changes shown on the revised
mining and reclamation maps submitted November 26`h:
1. line total area to be mined decreased from 672.5 acres to 633 acres. This decrease was
primarily a result of adjustments we had to make to the mining cells in order to leave space
for future oil and gas well operation areas.
LAFARGE NORTH AMERICA INC.
11409IB.,iness Park Circle, Ste 200
Long l ont, CO 80504
[phone]
www.lafargenorthamerica.com