PERMFILE67396

• Permit No: M1977424
• IBM Index Class Name: Permit File
• Doc Date: 3/25/1979
• Doc Name: EXHIBIT A LEGAL DESCRIPTION AFFECTED LAND
• Section_Exhibit Name: EXHIBIT A
• Media Type: D
• Archive: No

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' EXHIOIT D - MINING PLAN
A. The Logan Wash Oil Shale Mine is a modified in-situ oil shale operation.
Standard mining methods are used to excavate adits and raises for access
in the construction of underground rooms. The room sizes are calculated
to provide the necessary void space to create a chimney of oil shale when
the oil shale above each room is blasted with conventional explosives. A
flame front is established at the top of the chimney or retort which causes
the oil to flow to the bottom of the retort where it is pumped out to an
oil/water separator (heater-treater plant) for preparation for shipping.
Surface disturbances related to these activities include:
1. A dump site located in the NE; of the NH.', and the SEa of the NW!; of
Sec 25 with a capacity of 8.6 million cubic yards of new rock 30.00 a
2. Upper mine portal and bench located in the NW; of the NE', and the
SE; of the NE; of Sec 25 3.00 a
3. Lower mine portal and bench located in the SE; of the NW!; and the
SW; of the NE; of Sec 35 3.80 a
4. Research mine bench and dump located in the NE; of the SE', of
Sec 25 5.00 a
5. Surface facility buildings and drill pads located in the SE; of
the NE; of Sec 25 1.00 a
6. Two overflow ponds located in the NE; of the NE; of Sec 25 2.00 a
7. Area for future expansion of equipment and parts storage and
additional raise bore located in the NE; of the NE; of Sec 25 3.30 a
8. Raise bore and ventilation fan site located in the SE; of the NE!;
of Sec 25 3.30
9. Power substation located in the NW'; of the NE!~ of Sec 25 .25 a
10. Helo-pad located in the NEq of the NE; of Sec 25 1.00 a
11. Parking area, traffic control area, training area and main
entrance facility located at the Logan Wash entrance off of the
Roan Creek Road (9 miles from the mine site) 5.00 a
12. Meteorological tower and access road located in the NW; of the NW!;
of Sec 19 T6S R96W, 6th PM 1.00 a
13. Miscellaneous access roads located variously in the SW!; of the NEz
of Sec 24, throughout the NE', of Sec 25, the NE; of the SW%, of
Sec 25, the NW; of the SE4 of Sec 25 and the S; of Sec 25 11.50 a
14. Oil transfer pipeline located in the SW; of the NW', of Sec 25 and
in the NE; of the SW', of Sec 25 .50 a
15. Heater-treater plant and load-out facility located in the NE; of
the SW; of Sec 25 1.00 acre