1987-12-01_PERMIT FILE - C1981017 ‎(95)‎

• Permit No: C1981017
• IBM Index Class Name: PERMIT FILE
• Doc Date: 12/1/1987
• Doc Name: Sediment Pond Design Certifications
• Section_Exhibit Name: Chapter II Attachment 6 to Appendix II-B-7
• Media Type: D
• Archive: No

MORR1SCN-KNUDSEN CO APANY,INC.
C Mid-Continent Coal and Coke Company
Page 2
The following is a summary of the recommended drilling program:
Hole Total* Depth in* Depth in
No. Depth (ft) Refuse (ft) Foundation (ft)
1 100 70 30
2 130 100 30
3 160 130 30
4 150 120 30
5 180 150 30
6 110 - 80 30
7 30 -- 30
8 30 -- 30
9 30 -- 30
10 30 -- 30
TOTAL 950 ft. 650 ft. 300 ft.
! *Depths estimated from maps supplied by Mid-Continent Coal and Coke
4_ Company.
In order for the drilling program to be of maximum value to both
the refuse stability study and the refuse coal recovery study it should
satisfy the following criteria:
1. Availability of appropriate equipment and men within the
desired time frame for these studies.
2. Willingness of the drilling contractor to drill a small number
of holes.
3. Ability to collect an undisturbed or relatively undisturbed
sample at ten foot intervals.
A total of eleven drilling contractors were contacted and nine of
these were, in general , unable or unwilling to meet two or more of the
above requirements. The only contractors able to provide an undisturbed
or relatively undisturbed sample were soils sampling or soils engineering
firms. The following two firms can meet the drilling and sampling re-
quirements at the indicated preliminary costs: