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U-3 STABILITY MONITORING <br /> AmerAlia will develop a comprehensive monitoring plan that will include monitoring activities for <br /> water, subsidence, and process flows. AmerAlia is planning to implement several different <br /> monitoring programs for the production wells, cavities, and surface and ground water during the life <br /> of the experimental pilot plant phase. These monitoring activities include: <br /> • mechanical integrity testing prior to production <br /> • monitoring of the production wells to insure well bore integrity resulting in the protection of the <br /> ground water; <br /> • subsidence monitoring; <br /> • well failure monitoring; <br /> • process parameter monitoring; and <br /> • cavity growth evaluation <br /> These monitoring activities are discussed below. <br /> U-3.1 SOLUTION WELL <br /> U-3.1.1 Mechanical Integrity <br /> All production wells will be properly tested for mechanical integrity according to <br /> approved U.S. Environmental Protection Agency (EPA) requirements. A Mechanical <br /> Integrity Test (MIT) will be performed on the production wells prior to production of <br /> mining fluids. If a well fails the MIT, corrective action will be taken and another MIT <br /> will be performed. Unless there are mechanical integrity problems a MIT will be <br /> conducted once every five years and pursuant to 40 CFR 146.33 (b) (3). The <br /> production well MIT may involve a pressure leak-off test. <br /> A Cement Bond Log (CBL), cement evaluation test and/or temperature log will be run <br /> after the outer casing is cemented. The annulus of the well casing will be pressure <br /> tested prior to start up as well as during the production phase of the operation by <br /> continually monitoring annular pressures. Any unusual or unexpected pressure <br /> drops (abnormality) will be thoroughly investigated. If it is deemed necessary, <br /> corrective action will be taken in the form of well shut down and testing to determine <br /> the reason for the pressure drop/change. If in fact a casing leak is detected, <br /> corrective measures will include a protective spray coating, casing liner, or casing <br /> G:\LMVN78545.002\Reclamation\Reclamexh.DOC U-4 <br />