2006-10-19_REVISION - M1995035

• Permit No: M1995035
• IBM Index Class Name: Revision
• Doc Date: 10/19/2006
• Doc Name: Response to Inspection report dated March 28 2006
• From: Applegate Group Inc
• To: DRMS
• Type & Sequence: TR1
• Media Type: D
• Archive: No

~~ Applegate
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October 13, 2006 ---~ .- O ~ ~ -
~ OCT 1 g 2DOS `~-
Divl;?en of pn~lamz2ion. .
PJiihin~ ~rli Safety
Colorado Department of Natural Resources
~: Division of Mining, Reclamation, and Safety / NOV: None
Attn: Ms. Erica Crosby
1313 Shernan Street; Room 215 Annual Fee: 01/22/06 CW
Denver CO, 80203 .
RE: .Technical Revision for Connell Resources, Inc. Wellington Downs Pit;
Permit No. M-1995-035; Response to_ Inspection report Dated March 28, 2006
Deaz Ms. Crosby:
On behalf of our client, Connell Resources, Inc: (CRI), please accept the following technical
revision information for reclamation permit M-1995-035, Wellington Downs Pit. The technical
revision is to provide updated information regazding reclamation plans and activities at the
Wellington Downs site and respond to Division of Mining, Reclamation, and Safety (Division)
comments following the. Mazch 28, 2006 inspection. The inspection report suggested that lining
and backfilling of two CRI mining pits, the Wellington Downs Pit and the Stute Pit (M-1981-
007), may have created mounding of the local groundwater table and raised the groundwater lake
level on the adjacent Weitzel Pit site (M-1986-050). The inspection report also noted concerns
regarding continual surface water discharge from the Weitzel Pit groundwater lake onto the
Wellington Downs site. To address the issues presented in the inspection report, an evaluation of
local groundwater conditions and an analysis of site drainage were, performed. In addition to the
discussion provided below, a figure showing the azea of concern is attached.
The Wellington Downs Pit is located approximately 1'/z miles west of Timnath in Larimer
County, Colorado. The Wellington Downs Pit was originally permitted for sand and gravel
mining in 1996 and includes approximately 109.5 acres. Mining on the site has been completed
and reclamation of the pit was started in 2004. Consistent with the approved reclamation plan, a
clay lined, below-grade reservoir was constructed in the -pit and approved by the State Engineer's
Office (SEO) on July 7, 2005. A partial release for the pit liner was approved by the Division on
Apri17, 2006. The Wellington Downs site and lined reservoir is located adjacent to the southern
side of the Weitzel Pit groundwater. lakes (see attached Figure). The Weitzel Pit site was
previously mined for sand and gravel and reclamation currently includes three groundwater
lakes.
-1499 West 120th Avenue, Suite 200 [phone] • Fax [phone]
Denver; Colorado 80234-2759 _ ~ www.applega[egroup.com