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<br />GEC MINERALS, INC. <br />4th BENCH <br />1. Number of rounds (within 500' of permit boundary): 75 <br />2. Bench width (Ft): 13U' - 50' (45') <br />3. Bench Length (F t): 5U' - 100' (8U') <br />4. Shot sequence: East.to West <br />5. Delay Pattern: Always away from Dorchester. (See standard pattern) <br />6. Overburden thickness: 11 ft to 17 ft. <br />Max. 11 ft Avg. 15 ft <br />7. Total weight of explosives used: 75U - 2600 <br />8. Max. weight of explosives detonated within any 8 MS: 25 lb <br />9. Max number.of holes detonated within any 8 MS: 2 <br />10. Method of firing: Cap <br />11. Type and average length of stemming: Cuttings, 11' . <br />12. Type of delay detonator used: Nowell Primadets <br />13. Type of material blasted: Sandstone, shale <br />14. Type of explosives used: ANFU & Cast Primer <br />15. Direction and distance in feet to nearest dwelling, school, church <br />or commercial or institutional building neither owned or leased by <br />the Permittee: NW 2U0' to 700' from Dorchester Fuel Storage Facilities. <br />16. Delay periods used: 25, 50, 75, 100, 125, 150, 172, 20U' <br />