PERMFILE103150

• Permit No: M1999025
• IBM Index Class Name: Permit File
• Doc Date: 5/10/1999
• Doc Name: SOARING EAGLE GRAVEL PIT FN M-99-025 SECOND ADEQUACY REVIEW
• From: DMG
• To: GRAND JUNCTION PIPE & SUPPLY
• Media Type: D
• Archive: No

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STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
DepanmeN of Natural Resources
1313 Sherman St., Room 215
Denier, Colorado 80203
Phone: [phone]
FAX: [phone]
May 6, 1999
DIVISION OF
RECEIVED P~J~Ld~ ~'~~'~ ~®~ MIN &RA L S
MAY 10 1999 ~~~~~ n~-q~`o~5 Grad, r~ REe LOAMAOT ICON
lC~1T1 ~~ ~Q(I MINING~SAF ETY
Mr. Ed Settle ~.~.:onofMineraH&GeOlpgy ~~77JJa° u
Grand Junction Pipe and Supply
P. 0. Box 1849
Grand Junction, CO 81502
RE: Soaring Eagle Gravel Pit, File No. M-99-025, Second Adequacy Review
Dear Mr. Settle:
Bill Owens
Governor
Greg E. Walther
Enecul rce DireUOr
Michael B. Long
Division Director
Additional adequacy concerns have been identified regarding the Soaring Eagle Gravel Pit application.
Please respond to the following comments and concerns by May 24, 1999 so the decision for this
application can be made prior to June 3, 1999. If you cannot respond by May 24, 1999, please request a
decision date extension. Please be aware that failure to adequately address these comments and
concerns, or submit a decision date extension request, by May 24, 1999, could result in denial of this
application.
ADEQUACY COMMENTS
Rule 3.1.5{3i requires that all grading be done in a manner to control erosion and siltation of the
affected lands and to protect areas outside the affected land from slides and other damage. Rule 6.5
allows the Division to require an applicant to submit an appropriate geotechnical and stability analysis
demonstrating that off-site areas will be protected, with appropriate factors of safety incorporated into
the analysis.
The Division believes there is potential for adverse off-site impacts if the proposed inlet and outlet
structures for the lake failed to function as intended. Therefore, Grand Junction Pipe and Supply is
directed to submit an engineering stability analysis for these structures. The analysis will need to
include a hydrologic demonstration certifying what size flood event the structures are designed to
safely pass. Also, the demonstration will need to address stability of the embankment on either side
of these structures.
2. Please include costs for construction of the inlet and outlet structures in the reclamation costs listed in
Exhibit L.
If you need additional information, please contact me at the Division of Minerals and Geology, Durango
Field Office, 484 Turner Drive, Building F, Suite 101, Durango, CO 81301, phone no. 970-247-5062.
Sincerely,
,. ~~~~
Steve 5. Shuey
Environmental Protection Specialist