GENERAL33108

• Permit No: C1981029
• IBM Index Class Name: General Documents
• Doc Date: 7/7/1986
• Doc Name: MEMO MEADOWS MINE SUFICIAL INVESTIGATION OF STABILITY
• From: MLRD
• To: JEFF DECKLER
• Permit Index Doc Type: GENERAL CORRESPONDENCE
• Media Type: D
• Archive: No

Richaro D. Lamm
Governor
iii iiiiiiiuiiii iii
DEPARTMENT OF NATURAL RESOURCES
Davitl H. Getche5, Executive Director
MINED LAND RECLAMATION DI\
DAVID C. SHELTON, Director
MEMORANDUM
July 1986
T0: Jeff Deckl er mi L'~` ,
FROM: Jim Pendleton ,..e~
RE: Meadows Min 'Surfi ial Investigation of Stability"
I have completed a review of the report submitted by Sun Coal Company,
entitled "SUN COAL COMPANY, Surficial Investigation of Instability Adjacent to
Haul Road, Meadows No. 1 Mine (June 19, 1986)". This report, prepared by ACZ,
Inc., geotechnical consultant to Sun Coal Company, presents recommended
engineered repairs for five of the seven Surficial landslides adjoining the
haul road at the Meadows Mine. Two of the landslides, located above the road
cut between culverts No. 7 and No. A, were judged to be unrelated to the road
and not receptive to engineered repair. I concur with these opinions. The
consultant developed engineered repairs for each of the remaining five
landslides. These repairs include channel reallignment and improvement, slope
angle reduction, terracing and regrading. In my opinion, the suggested
repairs are prudent and can be approved, with the following condition.
In any such repair, it is important to note that careful attention to detail
is extremely important. In order to assure careful attention to engineered
design and inclusion of any field encountered conditions which might require
special practices or minor design modifications, I recommend that you require
that ACZ. Inc, supervise the construction activity, including the preparation
of inspection reports noting any field design modifications and certifying
as-built compliance with their design.
In response to your request, I also completed a review of the cost estimate
for the remedial work submitted separately by Mr. Brian Archer of Sun Coal
Company. The prices sited include some relatively low rates. However, the
depressed condition of the mining and earthwork industry in the area of the
mine have lead to some very economical contracts during the past several
years. I see no necessity to dispute the rates used in preparing the project
cost estimate.
cc: Mike Long
Doc. No: 2033E
423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. [phone]