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Attachment I Formation Testing Program Application Requirements The proposed formation testing program for Class I wells must be designed to obtain data on fluid pressure,temperature,fracture pressure,other physical,chemical, and radiological characteristics of the injection matrix and physical and chemical characteristics of the formation fluids. Approach The tests and work described below will be performed during construction to obtain the information necessary to support the issuance of a UIC permit following completion of the LEC-1 well and the LEC-2 backup well. Discussion relative to LEC-1 in this section would also apply to LEC-2,if it is drilled. The existing testing program will be continued for the STIG-1 well (annual mechanical integrity as presented in Appendix 7 and monitoring and quarterly reporting),but future discussions may occur with EPA to confer about continuous pressure monitoring versus annual testing. Determination of Fluid Pressure in the Confining and Injection Zones Fluid pressure in the upper confining zone,the Nortonville Shale,will be determined during the drilling of the well. Following successful installation and cementing of the 7-inch casing into the Nortonville Shale at an expected depth of about 3,660 feet bgs,the borehole will be advanced 2 to 3 feet below the casing shoe into the shale. At that time, a leakoff test will be performed. The pressure in the well bore will be measured with a downhole drillstem test (DST) pressure recorder. Pressure in the casing will be allowed to stabilize under static conditions,will then be increased in 100 psi increments several times,and the pressure will be recorded as it falls back to the"true initial pressure" at the bottom of the casing in the shale. The data from the tests will be compared to each other, and will demonstrate the actual pressure in the confining zone prior to injection operations. The comparison of the pressure falloff data from the different tests will demonstrate whether the confining bed has the needed integrity to prevent vertical migration of fluids out of the injection zone. The test will be terminated before breakdown pressure is reached so that the integrity of the confining bed will not be impacted. Fluid pressure in the injection zone will be calculated following completion of construction of the LEC-1 well by allowing the well to sit undisturbed and measuring wellhead pressure, SAC/371322/082550025(ATTACHMENT-I.DOC) 1-1