2008-03-10_REVISION - M1980149

• Permit No: M1980149
• IBM Index Class Name: REVISION
• Doc Date: 3/10/2008
• Doc Name: Adequacy Review #2
• From: DRMS
• To: Weld County
• Type & Sequence: AM3
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
COLORADO
D IV IS I ON OF
RECLAMATION
MINING
SAFETY
Bill Ritter, Jr.
'/March 10, 2008 Governor
Harris D. Sherman
reg Nelson Executive Director
Weld County o Ronald W. Cattany
Division Director
PO BOX 758 Natural Resource Trustee
Greeley, CO 80632
RE: Weld County, Permit No. M-1980-149 "
Hokestra Amendment Application 03 (AM-03)-Adequacy Review #2
Dear Mr. Nelson,
The Division received the adequacy responses for the Hokestra Amendment Application 03 (AM-03),
File No. M-1980-149. The response was submitted by Applegate Group on behalf of Weld County. The
Division has remaining comments that need to be addressed by the Weld County;
1. As required by Rule 6.4.3(a) please provide a map portraying all adjoining surface owners of record.
2. Please provide a revised application form reflecting the actual permit acres (the current form noted
120 acres). It is the Division's understanding that with the approval of Acreage Reduction 04 (AR-
04) on October 9, 2007 that the permit area is currently 172 acres.
3. It is stated that the proposed slurry wall will cross several gas lines, and that Weld County has been
assured that this is a routine procedure. The operator will need to demonstrate that such gas/oil lines
will be stable with the construction of the proposed slurry wall in the form of an engineering
evaluation, or provide a notarized agreement from the owners of the structure(s) and Weld County
that meets the requirements of Rule 6.4.19 and Section 34-32.5-115(4)(e), C.R.S. Please be aware
that if any of the gas/oil lines need to be relocated as a result of the mining and reclamation
operation, then a notarized agreement between the operator and the owner of the structure must be
obtained prior to approval of the application.
4. Weld County proposes to construct a French drain around the perimeter of the site to offset any
potential impacts to the surrounding groundwater and that monitoring wells will continue to monitor
the groundwater levels. The operator states that a trigger point will be determined once a year's
worth of groundwater data has been collected. Weld County will need to commit to a trigger point
under this amendment application. Attached is a copy of the revision that the Division approved for
the adjacent pit operated by Carina Bayshore, Permit No. M-1982-015 regarding a trigger point plan.
5. In the response prepared by Applegate Group it is stated that very large spillways would be required
to allow the water level in the reservoirs to equalize with the river prior to the river overtopping the
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Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines