2009-05-15_REVISION - M2000158

• Permit No: M2000158
• IBM Index Class Name: REVISION
• Doc Date: 5/15/2009
• Doc Name: Revised Mining Sequence and Final Configuration of Reclaimed Water Storage.
• From: DRMS
• To: Platte Sand & Gravel, LLC
• Type & Sequence: TR5
• Email Name: ECS
• 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]
May 15, 2009
Platte Sand & Gravel, LLC
Attn: Rocky Hoffschneider
PO BOX 180
Littleton, CO 80160
COLORADO
D I V I S 10 N OF
RECLAMATION
MINING
SAFETY
Bill Ritter, Jr.
Governor
Harris D. Sherman
Executive Director
Ronald W. Cattany
Division Director
Natural Resource Trustee
RE: File No. M-2000-158; Platte Sand & Gravel; Technical Revision 05 - Revise Mining
Sequence and Final Configuration of Reclaimed Water Storage, submitted by Gilcrest,
LLC
Dear Mr. Hoffschneider:
The Division of Reclamation, Mining and Safety (DRMS) has received your request for a
Technical Revision (TR) for the Platte Sand & Gravel Site to revise the mining sequence and the
final configuration of the water storage reservoirs. The revision was received on May 7, 2009
and called complete for review on that date.
According to Section 1.1 of the Construction Materials Rule, a Technical Revision (TR) "means
a change in the permit or an application, which does not have more than a minor effect upon the
approved or proposed Reclamation Plan." Upon initial review of TR05, the Division believes
that the proposed changes to the Platte Sand & Gravel reclamation plan, as submitted, constitute
more than a minor change to the approved reclamation plan, and therefore will require a Permit
Amendment for at least the following reasons:
The construction of 30 to 40 foot jurisdictional earth dams within the flood plain at the
confluence of the South Platte and St. Vrain Rivers certainly constitutes more than a
"minor revision" to the approved plan. Several additional entities including the Office of
the State Engineer, FEMA, ACOE and Weld County will need to review and approve this
proposed change. This change alone, and the required involvement of other regulatory
agencies for approvals moves the proposed activities beyond the scope of a technical
revision.
• Surface area of the proposed final water storage area appears to have been cut by at least
half - from the current approximately 1,240 acres to between 605 and 577 acres. The final
number of ponds had been changed from 9 to 3. This will significantly change the
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