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e. the pressure in the cavity decreases with a corresponding decrease in production <br />fluid flow. <br />If any of the above conditions exist, the following process will be initiated: <br />1. The well pressure, temperature, and flow rate instrumentation will be checked for <br />accuracy; <br />2. The well valves will be checked for possible leakage; and <br />If steps 1 and 2 rectify the problem normal operation of the well will continue; but <br />if steps 1 and 2 do not rectify the problem the following will occur: <br />3. Injection into the solution mining well will be discontinued and the density of the <br />fluids in the well will be balanced. Verbal notification will be given to the EPA <br />within twenty four (24) hours and written notification within five (5) days. <br />4. A mechanical integrity test of the casing will be performed by pressurizing the <br />annular space between the casing and tubing with nitrogen gas. The nitrogen gas <br />pressure will correspond to the hydrostatic pressure of the top of the cavity. A <br />mechanical integrity test of the tubing will be performed by closing the wellhead <br />tubing valve and measuring the pressure of the tubing; <br />5. A temperature log will be performed to determine if there is any significant <br />temperature change above the nahcolite-bearing zone; <br />6. The results of these procedures will be evaluated to determine the best solution for <br />correcting the problem. The use of additional logging techniques maybe required <br />to accurately pinpoint any mechanical failures; and <br />Specific corrective-action procedures will be developed and implemented with the <br />assistance of the appropriate agencies. <br />Page 3 of 3 <br />