2013-07-23_HYDROLOGY - M2001085

• Permit No: M2001085
• IBM Index Class Name: HYDROLOGY
• Doc Date: 7/23/2013
• Doc Name: Certification of Designation
• From: CDPHE
• To: Adams County Commissioners and DRMS
• Permit Index Doc Type: Hydrology Report
• Email Name: BMK
• Media Type: D
• Archive: No

STATE OF COLORADO
John W. Hickenlooper, Govemor
Karin McGowan
Interim Executive Director
Dedicated to protecting and improving the health and environment of the people of Colorado
4300 Cherry Creek Dr. S.
Denver, Colorado 80246 -1530
Phone[phone]
Located in Glendale, Colorado
http://www.cdphe.state.co.us
July 11, 2013
Laboratory Services Division
8100 Lowry Blvd.
Denver, Colorado 80230 -6928
(303) 692 -3090
Board of County Commissioners
4430 South Adams County Parkway
5th Floor, Suite C5� 000T-
Brighton, Colorado 80601 -8204
OF COLD
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1876
Colorado Department
of public Health
and Environment
RECEIVED
RE: Final Determination: Recommendation of Approval with Conditions DIVISION OF RECLAMATION
Application for Certificate of Designation MININGAND SAFETY
Proposed Henderson Inert Landfill
Adams County, Colorado
Dear Commissioners:
The Colorado Department of Public Health and Environment, Hazardous Materials and Waste Management
Division (Division), received from Adams County, Colorado, an official referral notification, dated
January 22, 2013, requesting the Division's review of an Application for a Certificate of Designation (CD)
(Application) for a proposed new inert landfill in Henderson in Adams County, Colorado. The Division
received the Application as an electronic document stored on a compact disk. Based on the Division's
request, the Division also received a hard copy of the Application. As described in the Application, the
proposed new facility, the Henderson Inert Landfill, would have an area of approximately 39 acres and
would accept inert material as defined by Section 1.2 of the Regulations Pertaining to Solid Waste Sites
and Facilities, 6 CCR 1007 -2, Part 1 (Solid Waste Regulations). Included in the Application is an
Operations and Closure Plan (Plan) (JR Engineering 2012), prepared by the Henderson Inert Landfill's
technical consultant, JR Engineering, and dated November 2012. The site was a gravel pit where
approximately 978,000 cubic yards were removed and is now a reclamation project under the
administration of the Colorado Division of Reclamation Mining and Safety (DRMS). The property is being
operated under a reclamation plan that calls for a permanent water storage reservoir. According to the Plan
(JR Engineering 2012), converting the pit to water reservoir has proven infeasible, and 120 85 LLC
seeks to backfill the mine with inert materials to reclaim the land and restore it to near its original grade.
As of the date of the Plan (JR Engineering 2012), GSL/Brush LLC, an Illinois company, is the
property owner /permit holder, and is under contract to sell the property to 120 85 LLC, subject to
approval by DRMS.