REP00012 ‎(3)‎

1
TO: Brian Munson
FROM: Jim Pendleton
$ I A I1 0 IJ 0 r)I4 A L11l q11 nnN11 I1, I ArAM, • v•a i
DFPARTMENT OF NATURAL RFSOURCES III III III III IN III
D Moon Pascoe, E.ecutrve Director
999
MINED LAN D R EICLAM ATION
423 Centennial Building, 1313 Sherman Street
Denver, Colorado 80203 Tel. [phone]
March 3, 1981
SUBJECT: Blasting and Waste Disposal Aspects of the Hayden Gulch Coal Mine
Permanent Program Application
Pursuant to your request I have completed a preliminary review of the blasting
and waste disposal geotechnical aspects of Yampa Coal Company's permanent program
application for the Hayden Gulch Surface Coal Mine. I forward the following
comments for your consideration.
David C. Shelton
Director
Specific Application Deficiencies:
2.05.3(6) Overburden:
1. No narrative explaining removal, handling or storage of all overburden materials
is presented within the application.
2. No statement of volumes or swell factors anticipated for the excess spoil
and overburden are included within the application.
2.05.3(6)
(a) Surface Blasting Plan:
No. general narrative explaining how the applicant intends to comply with the
performance standards of Rule 4.08 is included within the application.
Specific deficiencies of the blasting plan include:
1. A statement of whether or not any residence exist within one half mile of the
planned blasting and whether or not any pre - blasting survey will be conducted.
2. If a pre -blast survey were required, the applicant should explain how they
intend to perform this survey as required by sec. 4.08.2.
3. The application should include a statement of intended conformance with
blasting schedule publication as required by Rule 4.08.3.
4. The applicant should include the statement that the applicant intends to
conform with the surface blasting conformance standards of nearby resident notifi-
cation (4.08.4(4)), access control (4.08.4(5)), airblast limitation (4.08.4(6)),
safety buffer zones (4.08.4(7)), flyrock control (4.08.4(8)), hazard prevention
(4.08.4(9)), and maximum peak partical velocity limitation (4.08.4(10)).
2.05.3(6)
(b) Waste Disposal:
1. The excess spoil pile design must be certified by a registered professional
engineer. No engineers name or registration number nor certification are con-
tained within the application. In addition those map and cross section exhibits