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05/29'96 15:57 PAX 916 387 0802 DAMES & HOORE Z004 6 The[e line will be removed,and shot perforating strings provided by Halliburton will be lowered on a wire line into the gra, and 2. OMC in Pilo' lace shot Perforatious will be made from 370 to 362 feet bgs, 340 to 310 feet bgs, and 240 to 212 feet bgs. 7. A packer win be lowered on a tremie line to a depth of approximately 150 feet so that it is above the Original Nell Perforations from 168 to 158 feet bgs. The packer will be pressured with nitrogen to form a seal-11 eal against the inside of the casing, and held in place by Chaining the upper end of the tremie line to the well casing- Using grout slurry introduced through the tremie line, a pressure of approximately 50 psi Will be maintained for one hour. The packer will then be removed, and the grout allowed to set overnight- Day 3 P I m'1 `t� G t"o t.AJ- Se�j e-j t-+ 10 ( 8• Tho third,or upper lift from 150 to 5 feet bgs will be grouted using the same grout specification and in a similar manner as the middle M. 9. The depth interval of 118 to if 12 feet bgs will be shot perforated us described above, ing the same methodology as 10- A Packer will be Placed at 5 feet bgs and a pressure of approximately The packer will then be removed, 100 Psi maintained for one hour. and the grout allowed to set overnight. Day 4 PA-c-02-e2 ( b/_l a- I be Q e J aun o t{t 11. The well location will be surveyed to the base coordinate system. 12- - fh e fill around the casing will be excavated to a depth of 5 feet bgs. Using a torch, the casing will be cut and removed at 5 feet bgs. 13. The remaining open casing will be slightly overfilled with grout by$eylik, forming a cap 14. The fill around the outlet pipe will be excavated to a depth of approximately 5 feet bgs, the pipe em with a torch, and a metal plate weeded to the pipe- Day 5 I5. The two excavations, each of which are estimated to be 10 feet square backfilled by Diede Construction with the excavated fill topped with 10 inches of and five feet deep, cep, will be The backtril will be compacted in 6-inch lifts us" Material 4 inches below mg a vibra-plate. The filled grade shall be Sniched the existing asphalt grade level.