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ATTACHMENT I:FORMATION TESTING PROGRAM if present, or by determining the height of the fresh water column in the well during shut-in conditions and calculating the hydrostatic pressure on the zone. Pressures on the LEC-1 well will be monitored and recorded while the STIG-1 well is injecting and when it is not for a period of 48 hours prior to injection testing of the LEC-1 well. This will provide data both on the pressure in the injection zone in shut in conditions and on the overall maximum pressures to be expected during operation of both injection wells. Determination of Temperature in the Injection Zone Temperature in the injection zone will be determined by running a temperature log in the well upon completion of construction of the well,and prior to injection operations. Determination of Fracture Pressure in the Injection Zone Fracture pressure in the injection zone will be calculated using an assumed general fracture gradient of 0.73 psi per foot. The Domengine Formation lies at a depth of about 3,750 to 4,585 feet. Fracture pressures at those depths are therefore estimated at approximately 2,737 psi and 3,347 psi,respectively. Based on the proposed perforated interval of the LEC-1 (and LEC-2)well,the estimate fracture pressure would be about 2,993 psi. Considering that the density of the proposed injection fluid is about 1.04,the resulting hydrostatic pressure at the top of the completion interval is 1,991.7 psi. Therefore, a minimum injection surface pressure of 1,178 psi would be necessary to fracture the LEC-1 completion interval. Determination of Physical, Chemical and Radiological Characteristics of the Injection Zone Sampling and testing of formation matrix and water from the injection zone will be conducted. Analysis of Injection Zone Formation Matrix As the borehole for the LEC-1 well is advanced through the Domengine Formation, attempts will be made to collect whole core through the proposed injection interval of roughly 4,220 to 4,575 feet bgs. If the formation is too soft to core—a likely condition since the STIG-1 well encountered flowing,unconsolidated sands in the injection interval of that well—then a bulk sample from cuttings circulated to the surface will be collected for analysis. The mineralogy, grain size distribution,permeability, and hydraulic conductivity of the Domengine Formation matrix will be determined,as well as for the Nortonville Shale. Analysis of Representative Formation Water Sample The physical and chemical characteristics of the injection zone formation fluids are represented by chemical analyses performed on the native water in the Domengine Formation from prior to initiation of injection activity in the immediate area, and proposed 1-2 SAC/371322/082550025(ATTACHMENT-I.DOC)