PERMFILE101828

• Permit No: M2001090
• IBM Index Class Name: Permit File
• Doc Date: 8/19/2003
• Doc Name: Adequacy Letter
• From: Lafarge West Inc
• To: DMG
• Media Type: D
• Archive: No

~LAFARG E
NORTH AMERICA
RECEIVED
AUG 19 2003
Construction Materials
August 19, 2003
Mr. Thomas Schreiner
Environmental Protection Specialist
Division of Minerals and Geology
1313 Sherman Street, Room 21 S
Denver, Colorado 80203
Division ~f Minerals and Geology
RE: River Valley Resource, Petrmit No. M-2001-090 -Responses to August 13, 2003 Q~ 4a~y
Letter e/QSS: Pernti~
Dear Mr. Schreiner:
Lafarge West, Inc. (Lafarge) has prepared the following responses to the objection letter from the
lawyers for Jane and Ervin O'Dell. This response will address each point in the same order as the
O'Dell's letter. In addition, Lafarge has also prepazed a response to your question concerning the
stability analysis of the Suttle Ditch. Our responses are as follows:
1) The significant changes are as follows:
a) Increased amount of settling-pond wetlands from 10 to 17.41 acres
b) Minimal increase in groundwater lake area from 64 to 6S.S9 acres
c) Greater retention (i.e. less disturbance) of existing wetland areas
d) Greater visual and wildlife aesthetics by creation of S lakes rather than 1 lake
e) Movement of the Process area and Batch plant from the north end of the
property to the south end of the property (i.e. farther from the existing
neighbors)
2) As I indicated, I was unaware of the pre-agreed to 40-acre maximum disturbance.
Lafarge will abide by this condition of the original permit as a continuing condition of
our amended permit. The calculated reclamation costs, as presented in EXHIBIT L, from
the Amendment Application is virtually the same $270,199 as those presented in the
original permit application. The existing reclamation bond for the site is $270,200. Even
though Lafarge will be disturbing an additional 12 acres as compared to the existing
permit during the life of the operation, the reconfigured mine plan for the property has
resulted in only 1.6 additional acres of groundwater lakes area, 3 additional acres of
shoreline, 7.41 additional acres of backfilled/wetland replacement areas, and 11.26
additional acres of undisturbed lands. The existing permit has 79 acres of the lOS acres
that are disturbed. The amended permit will have 91 of the amended 137 acres disturbed.
The majority of the difference in disturbed areas comes in the form of backfilled/wetland
replacement areas.
Western U.S. Region
1400 W. 64th Ave., P.O. eOX 21588, Denver, Colorado 80221-0588
Office: [phone]
Web: www.latargenorthamericacom