PERMFILE70540

• Permit No: M2000098
• IBM Index Class Name: Permit File
• Doc Date: 12/24/2001
• Doc Name: MONARCH QUARRY 112 PERMIT APPLICATION FN M-2000-098
• From: COLORADO LIME CO
• To: DMG
• Media Type: D
• Archive: No

III IIIIIIIIIIIII III
999
RECEIVED
COLORADO LIME COMPANY
400 East Railroad Avenue DEC 2 4 2001
P.O. Box 1044
$81(da, COlOrddO 81201 Division of Minerals and Ceolog~
Phone [phone] Fax [phone]
December 21, 2001
STATE OF COLORADO
Division of Minerals and Geology
1313 Sherman Street, Room 215
Denver, Colorado, 80203
Re: Monarch Quany 1 l2 Permit Application, File No. M-2000-098
Attn: James Dillie
Dear Mr. Dillie,
th response to yours of December 18, 2001, I submit:
The "erosion control system " is the Stormwater Permit with it's accompanying
5tormwater Management plan. The boundaries of the stonnwater drainage area aze
designated in red on the submitted map and labeled as such at the top of the map. AU
stormwater addresses itself to the decant pond at the bottom of the drainage area, except
that portion of the spoils pile northeasterly of the pond which is rip-raped with large
material, is immediately adjacent to the South Arkansas River and which will remain
undisturbed until it is mined. Mining will be done in such a manner to prevent the storm
water from directly entering the river as contained in the "Mining Plan". To the best of
my knowledge, there have been no complaints about silt entering the river from the area
rip-raped and immediately adjacent to the river.
The maps submitted with the Stortnwater map were for the sole purpose of
showing how the mean vegetative cover and slope figures were derived and has nothing
to do with extending the 112 permit boundaries to the Southwest. There are no plans to
extend the permit boundaries at this time.
The decant pond was constructed years ago by CF8c1. Late this fall I had the area
of the pond cleaned to its original size and depth to contain the 2 year 24 hour event. It is
ample for this purpose. The decant pipe is 20 inches ID and using the "Cutter Formula"
it's capable of discharging in excess of 300 gallons per minute of water to prevent
breaching the berm long ago placed there. There is in excess of one foot of berm above
the upper edge of the pipe. To the best of my knowledge, and after some inquiry, the
berm has never been breached. As stated previously, there is an overall average of four
feet is depth below the lower lip of the decant pipe. CF&[ had a pretty good engineering