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ATTACHMENT L:CONSTRUCTION PROCEDURES The LEC-1 well will be constructed using the following casing and cementing program: • From 0 to 30 feet bgs set 16-inch nominal diameter carbon steel conductor pipe in 18-inch-diameter borehole, and cement in place with Portland type"G" cement. • From 0 to 610 feet depth, set 10 3/4-inch nominal diameter,40.5 pounds per foot, American Petroleum Institute (API) grade K-55,short thread couplings (ST&C),casing through conductor pipe and into a 14 3/4-inch diameter borehole from 30 feet to 610 feet, and cement in place with approximately 395 cubic feet of type"G" cement. Contractor will make recommendations on specifics of the cementing program at time of construction,including recommending specific additives such as calcium chloride, gel, fly ash, or Field Processing System (FPS) to control cement hydration time,bonding ability, or shrinkage. • From 0 to 3660 feet depth,set 7-inchnominal diameter,20 pounds per foot, grade K-55 ST&C casing through 10 3/4-inch casing and into 9-7/8-inch borehole from 610 feet to 3,660 feet,and cement in place with approximately 1,650 cubic feet of type"G" cement with sufficient additives to control hydration,bonding and shrinkage. • From 3,360 to 4,575 feet depth, set 4-1/2-inch nominal diameter,15 pounds per foot, grade K-55,ST&C liner through 7-inch casing to 3,660 feet and into 61/4-inch diameter borehole from 3,660 feet to 4,575 feet,and cement with 190 cubic feet type"G" cement. Logging Procedures Logs in Surface (7-inch) Casing Interval A commercial geophysical wireline logging company will be contracted to perform a "Dual Induction Compensated Density Dual Spaced Neutron Log," including Gamma Ray, Caliper, and Spontaneous Potential tracks,throughout the interval between the shoe of the 10 3/4-inch casing at 610 feet and the bottom of the 9-7/8-inch borehole at 3,660 feet. Copies of the log at scales of 2 inches=100 feet and 5 inches=100 feet will be submitted upon completion of the well construction. After the 7-inch casing is run and cemented,a Neutron Casing Collar and Cement Bond Log will be run from 3,660 feet to 0 feet. A copy of that log at a scale of 5 inches=100 feet will be submitted upon completion of the well construction. Logs in Deep (4-112-inch) Liner Interval A "Dual Induction Compensated Density Dual Spaced Neutron Log," including Gamma Ray, Caliper, and Spontaneous Potential tracks,will be run throughout the interval between the shoe of the 7-inch casing at 3,660 feet and the bottom of the hole at 4,575 feet. Copies of that log at scales of 2 inches=100 feet and 5 inches=100 feet will be submitted upon completion of the well construction. Completion Logging Upon completion of the well construction—and as part of the initial injectivity testing of the well,temperature,pressure,and spinner flow meter—logging of the well will be performed L-2 SAC1371322/082560019(ATTACH MENT-L.DOC)