PERMFILE61862

• Permit No: C1981038A
• IBM Index Class Name: Permit File
• Doc Date: 1/10/2005
• Doc Name: page 100 to 164
• Section_Exhibit Name: 2.05 Operation and Reclamation Plans Part 3
• Media Type: D
• Archive: Yes

52.05 APPLICATION FOR PERMIT FOR SIIRFACE OR DNDERGROUND MINING ACTIVITIES --
MINIMUM REQUIREMENTS FOR OPERATION AND RECLAMATION PLANS.
2.05.6 Mitigation of Surface Coal Mining Operation Impacts. (Cont'd.)
(6) (a) (i) See Section (6)(a)(ii).
(ii) No answer required.
(A) Through the services of an independent
consultant, Geo-Hydro Consulting, Inc.,
CWI has prepared a study which address-
es the predicted nature and character-
istics of subsidence induced phenomena
within the permit area (refer to Subsi-
dence Appendix, Volume 3). The study
contains an inventory of natural re-
sources and anthropogenic structures.
The study also addresses the impacts of
underground mining and attendant sur-
face subsidence upon the structures and
resources identified.
Within the permit area there are three
deposits of colluvial/alluvial materi-
al, which because of size, hydrological
• conditions, and development are consid-
ered Renewable Resource Lands under Di-
vision Rule 1.04(110). These areas are
located as follows: Steven's Gulch,
portions of Sections 12 and 13, T.13S.,
R.92W.; East Foatcap Creek, portions of
Sections 14 and 1~, T.13S., R.92W.; and
Morrell Cow Camp, portions of Section
1, T.13S., R.91W. Hydrogeologic char-
acteristics of the mosC significant
area, Steven's Gulch, follows.
Results of drilling and testing in five
wells indicated that these deposits are
composed of a mixture of gravel and
clayey sand with a thickness of up to
97 ft. and a low permeability. The
range of transmissivity resulting from
tests in well Nos. SG-a, SG-b, and SG-1
is 140 - 235 square ft/day. Storage
coefficient ranged from 3 X 10-4
and 4 X 1-3. The water table in
the aquifer has a great range of
• Added 12/26/84
Revised 12/26/84
Revised 10/01/87
136