PERMFILE59767

• Permit No: M1995012
• IBM Index Class Name: Permit File
• Doc Date: 4/21/1995
• Doc Name: ADEQUACY REPLY POWELLS GRAVEL PIT FN M-95-012
• To: DMG
• Media Type: D
• Archive: No

• • iiiiiii iii
Q~r.EIVED
APR 21 1995
April 17, 1995 ='~~' ~~~..~ ~~~~~ieraistsGeology
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman ST., Room 215
Denver, CO 80203 _ -_
RE: Adequacy Reply, Powell's Gravel Pit, File No. M-95-012
ATTN: Gary S. Curtiss/Environmental Protection Specialist
Please consider this letter as written response to your
adequacy review questions in your letter dated April 14, 1995.
1. The estimated dates that mining will begin will be as soon
as the proposed pit is permitted and the mining will end
when the material supply is exhausted or a 5 year ending
date.
2. There will be no direct drainage from the affected area
either in to East Twin Wash or West Twin Wash. There
will be no need for either berms or sediment ponds.
3. The average minimum topsoil thickness will be 6", although
there are several areas at this site that will be rockfaced.
We will replace all available topsoil or growth medium during
the reclamation process. We will follow the guidelines of
the Moffat County Soil Conservation District.
4. Approximately Eft. thickness of gravel deposit will be
mined in this area.. There will be no waste rock.
5. The maximum area to be disturbed at any one time is approx-
imately 6 acres. The actual pit dimensions will be approx-
imately 174,240 sq. ft. or 4 acres. The total area disturbed
upon completion of mining will be approximately 9 acres.
6. Approximately 7 acres are the dimensions of the old pit
present on the site.
7. We will provide a revision to the permit when or if an
asphalt plant is ever installed on-site.
8. We will regrade all slopes to agradient of 3H:1V or flatter
and continue the reclamation process according to the Moffat
County Soil Conservation District and the Division of Minerals