PERMFILE54964

• Permit No: M2002020
• IBM Index Class Name: Permit File
• Doc Date: 5/7/2002
• Doc Name: Adequacy Review
• From: DMG
• To: City of Greeley
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman SL, Room 216
Denier, Colorado 80203
Phone: [phone]
FAX: [phone]
MEMO
~~
DIVISION OF
MINERALS
GEOLOGY
RECLAMATION
MINING~SAFETY
MINERALS PROGRAM POLICY
8111 O~~~ens
Governor
TO: Minerals Staf£ cre~; E. ~~•,~I~her
E.necutive Director
FROM: HBH ~ `" micnnel s. Long
Division Direcor
DATE: May 9, 2000
RE: Addendum To The Minerals Program Policy On Application Reviews
Involving Lined Sand and Gravel Pits, Original Policy Dated march 29, 2000
This addendum was prepazed by Division staff at the request of a consulting company, and is
intended to address specific concerns that have been raised by users of the 3129100 policy.
Under the regulated construction option, an Operator is required to provide a construction
report detailing the construction of a slurry wall or pit liner. The report would typically
include a project description, construction summary, a description of any problems that
occurred and their resolution, a discussion of construction quality assurance observations and
a tabulation of test results. The report would also include a certification from the quality
assurance engineer that the facility was constructed in accordance with the approved design
plan. The regulated construction option also requires Operators to provide a commitment
that approved plans and specifications will not be altered without the Division's consent and
to provide a construction schedule to facilitate•inspections by the Division. With this level of
regulatory control over the installation of the slurry wall and pit liner, the Division would not
typically require submittal of any interim construction reports. A final construction
observation report submitted following completion of the facility is sufficient. Operator's
must summarize the progress on installation of slurry walls and pit liners that take more than
'one yeaz to complete in the annual reclamation report required under 34-32.5-116(3)(a),
C.R.S. However, the level of detail required in the annual reclamation report is much less
than in the final construction observation report. Information required in the annual report
includes a discussion and a map showing the extent of current disturbances to affected land,
liner or slurry wall installation accomglished to date and during the preceding yeaz, new
disturbances that are anticipated to occur during the upcoming yeaz, liner or slurry wall
installation that will be performed during the coming yeaz, and the dates the liner or slurry
wall installation occurred during the report year.
2. The discussion and example specifications and quality assurance plan included in the 3129!00
policy are not intended to be exhaustive. The 3/29/00 policy memo example includes no
discussion of pit liners and does not go into detail on the necessazy quality assurance