STAGE ELEVATOR CORE DRILLING SPEC 12/5/1931

#1 - #8 SAME AS STAGE SPEC

9. Orchestra Pit:
There shall be two (2) holes twenty (20") inches in diameter to receive eighteen (18") inch pipe casing.  Casings shall extend from finished pit floor elevation plus nineteen feet five inches (19'5") to elevation minus nine feet five inches (-9'5"), a total of twenty eight feet ten inches (28'10").

10. Casings for these holes shall be furnished by others, but shall be set by drilling contractor.

11. Two holes twenty-six (26") inches in diameter starting at finished pit floor elevation nineteen feet five inches (19'5") and of sufficient depth to clear the bottom of the casing at elevation minus nine feet five inches (-9'5").

12. These holes will not be lined unless loose shale or gravel is encountered.  If temporary lining is necessary, it will be furnished by others.

13. Stage Elevator:
There shall be two (6) holes twenty (20") inches in diameter to receive eighteen (18") outside diameter inch pipe casing.  Holes shall extend from finished pit floor elevator plus nineteen feet five inches (19'5") to a clearance point below the bottom of the casing at elevation minus twenty-two feet seven inches (22'7"), a total casing length of forty-two feet (42'0").

14. Pipe casings shall be furnished by others, but shall be set by the Drilling Contactor.

15. There shall be six (6) holes twenty-six (26") inches in diameter for elevator cylinders extending from pit floor elevation plus nineteen feet five inches (19'5") to a clearance point below the bottom of the cylinders at elevation minus twenty-two feet seven inches (-22'7").  A total length of cylinders shall be forty-two feet (42'0").

16. These holes will not be lined unless loose shale or gravel is encountered.  If temporary lining is necessary, it will be furnished by others.

17. The builder shall clear off all loose material to solid rock and shall lay a concrete pad at least twelve (12") inches thick to provide a level starting surface for the drills.

18. The Driller Contractor shall be required to hold the location of the holes within a tolerance of one-half (1/2") inch from the dimensions given on the Elevator Contractor's drawings and in no case shall the holes be more than one-half inch (1/2") out of plumb.

19. The Drilling Contractor shall furnish a means for removing water from around the drilling operations by the General Contractor, also a means of removing core, stone or other materials caused by the drilling.

20. As the holes are to be drilled in the field in its present condition, if the Drilling Contractor requires any cribbing for his machines, he shall be required to furnish a drawing showing the cribbing.  The Drilling Contractor shall be responsible for the design of this cribbing, both as to safety and usefulness and shall furnish and install the cribbing.

21. The Drilling Contractor for the work covered under this specification is referred to drawings No. 775-37-A revised 12/5/31, and 775-38 dated 12/2/31 of Peter Clark, Inc.