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• Minor Revision No. 63 Bond Summary <br />Exhibit 19 <br />The following cost estimates are based on Basin's contract work <br />conducted during the 1994 Degasification program. <br />1. Regrade Drill Pads: <br />Total pad disturbance for 2 sites is 12,800 ftZ. <br />Regrade using small dozer - $60./hr. <br />Estimated time is 1 hour per 1000 ft2. <br />12.8 hrs x $60./hr .......................... ..$ <br />2. Reseed Drill Pads and New Roads: <br />a) Drill sites......0.30 acres <br />b) New roads........4.30 acres <br />(a + b) = 4.60 acres x $250./acre ........... ...$ <br />3. Regrade Roads: <br />a) New roads........... 1,500 ft. <br />• (a) 1,500 ft x 1 hr/500 ft. x $60./hr.....$ <br />4. Backfill Mudpits: Size = 40' x 8' x 6' <br />a) One pit per site........2 <br />b) Contingency pits....... 1 <br />(a + b) = 3 pits x 4 hrs/pit x $60./hr..........$ <br />S. Cementing Cased Holes: <br />Assume worst case bottom to top. <br />Total footage: 2020 ft. from Table 2. <br />Hole (Casing) diameter: 6 5/8 inch OD <br />Number of holes: 2 <br />a) Cement Grout: (Estimated footage) <br />2020 ft. <br />2020 ft x $1.05/ft .....:........$ 2,120. <br />b) Abandonment Fluid: (Gel Type) <br />0 <br />0 x $0.15/ft ............:.....$ 000. <br />c) Drill rig, water truck, & labor: <br />• 12 hrs x $125./hr ...............$ 1,500. <br />768 <br />1,150. <br />180. <br />720. <br />