PERMFILE121834

• Permit No: M2000113
• IBM Index Class Name: Permit File
• Doc Date: 8/17/2001
• Doc Name: MAMM CREEK GRAVEL PIT ROARING FORK RESOURCES INC FN M-2000-113
• From: KNIGHT PLANNING SERVICES INC
• To: DMG
• Media Type: D
• Archive: No

;~ planning
services, inc.
August ~, 2001
Mr. Gregg Squire
Colorado Division of Minerals and Geology
1313 Sherman Street, Room 215
Denver, CO 80203
iii iiiiiiiiuiiiiii
RECEIVED
AUG 1 7 1001
Division of Minerals and Geology
Re: Mamm Creek Gravel Pit
Roaring Fork Resources, Inc. -File No. M-2000-113
Dear Gregg:
I am writing to provide a response to the most recent comments of the Division on the
above referenced project. These comments were contained in a letter prepared by Tom
Schreiner of your office dated March 5, 2001.
As part of our response to these comments, the applicant would like to remove the
Renewable Resource Area from the mining plan. The concerns that have been expressed
by the Division on this portion of the site, as well as those that came forward through the
processing of the 404 permit, convinced the applicant that it would improve the viability
and political acceptance of the plan to eliminate the Renewable Resource Area. Revised
Mine Plan Maps (C-1 and C-2) and Reclamation Plan Maps (F-1 and F-2) have been
prepared to reflect this change. By removing the RRA from the plan, the area within the
active mining boundary is reduced from 146.68 acres to 122.96 acres. The remaining
four mining phases (West Property Line to Horse Fence; Slough to East Property Line;
West End; Dry Creek to Slough) and the two areas designated for potential future mining
(Snyder Ranch to Mamm Creek; West Horse Fence to Snyder Ranch) are still in the plan
as shown in the initial and supplemental submittal information. The 100' buffer area that
had been in place at the north edge of the RRA has been removed and is replaced with a
]00' buffer along the north edge of the first two mining phases (West Property Line to
Horse Fence and Slough to East Property Line). The top of the berms for the reclaimed
ponds have been raised by a maximum of 5.5 feet at cross section 440 and by less than 1
foot in the majority of areas in order to keep the 50 year flood from inundating the ponds.
The U.S. Fish and Wildlife Service, consulting on the 404 permit, had concerns about
non-native fish species escaping from these ponds and having negative impacts on the
native fish in this stretch of the river. Designing the reclaimed ponds to withstand the 50
year flood satisfied their concern on this matter. Information on the determination of the
flood levels across the site and their impacts is discussed in the attached flood plain study
prepazed by High Country Engineering.
Below is our response to the March 5, 2001 letter from the Division:
box 947 -eagle, co 81631 - 970.328.6299 -fax [phone]