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• Immediately Down-Gradient <br />NaTec-26-EX2 Dissolution Surface monitoring well <br />NaTec-26-89-1 B-Groove monitoring well <br />NaTec-26-89-2 A-Groove monitoring well <br />NaTec-26-89-3 Perched monitoring well <br />Down-Gradient <br />IRI-4 A-Groove monitoring well (planned 1991) <br />IRI-5 Perched monitoring well (planned 1991) <br />IRI-6 B-Groove monitoring well <br />IRI-7 Dissolution Surface monitoring well <br />IRI-8 Perched monitoring well <br />Figures 6, 7, 8, 3, 10, 11, 12, 13, 14, 15, 16, 17 and 18 SNOW <br />well completions for dedicated monitoring wells. <br />2.2 Well Field Monitoring Wells <br />As mining proceeds, the first two down-gradient production wells <br />(within a 5 year k~lock) will be recompleted as monitoring wells <br />in each block of cavities during mining. This will involve <br />recompletion of wells previously used as production wells during <br />mining. The recompletion of former production wells will <br />proceed as shown in "typical" Figure 19 and 20 for the area <br />above the Dissolution Surface and the B-Groove monitor zones. <br />_ Details of recompletions will be provided in Sundry Notices. <br />• <br />15 <br />