_GENERAL DOCUMENTS - C1981017 ‎(248)‎

• Permit No: C1981017
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Name: Bid Documents ‎(IMP)‎ 1992 Correspondence
• Permit Index Doc Type: General Correspondence
• Media Type: D
• Archive: No

I N C .
INTEROFFICE CORRESPONDENCE
TO: J.A. REEVES
SUBJECT: TOPSOIL REQUIRED FOR COAL BAS R LA ATION
FROM: BRUCE A. COLLINS
DATE: DECEMBER 1, 1992
REVISED; PLEAS DISCARD VERSION-DATED NOVEMBER 30 1992
Below are estimated topsoil requirements for Coal Basin
reclamation, based on the following assumptions :
1 . Acreages as given on p. 4, Chapter V of the Mining &
Reclamation Plan.
2 . No topsoil will be distributed on roads or road down-
slopes, or on mine pad downslopes .
3 . Topsoil will be distributed to a nominal depth of 6
inches (see last paragraph) .
4 . Soil weight is 78 lbs/cubic ft (Table 3-120, Chemical
Engineers ' Handbook, value for moist loose earth) , or
1 . 053 tons/cubic yd .
CUBIC
LOCATION ACRES YARDS TONS
Coal Creek Complex 51 . 2 41, 301 43, 490
Coal Creek Complex to
Coal Basin Tunnel 39 .6 31,944 33,637
Old refuse pile 13 . 6 10,971 11, 552
Sutey refuse pile 46 . 2 37, 268 39, 243
No. 1 Mine pad 5. 6 4, 517 4, 757
No. 2 Mine pad 7 .7 6, 211 6, 540
No. 3 Mine pad 7 . 4 5,969 6,285
No . 4 Mine pad 2 .9 2, 339 2, 463
No. 5 Mine Dad 11 5 9 . 277 9,768
TOTAL 185. 7 149, 797 157,735
As the acreages include bare rock slopes, areas that have
already been at least partially revegetated, and areas where
topsoil is probably not needed (such as the overland
conveyor right-of-way) , these amounts should be considered
maximums .