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2 <br />Before American Soda commenced mining operations, 15 months of baseline <br />ground water data was collected under the same program that continues today. <br />The current monitoring data for each well is summarized in a two page table per <br />well in this document. Not only is the raw data for the present reporting period <br />included, but also regulatory standards and statistics are shown for comparison <br />and, additionally, baseline and operational statistics are calculated for all data <br />prior to the reporting period. <br />During the fifteenth operational quarter, seven ground water monitoring wells; <br />1) Well 21-3U <br /> a. Barium <br />2) Well 21-4U <br /> a. Barium <br /> b. Phosphorus <br />3) Well 21-3A <br /> a. Boron <br /> b. Phosphorus <br />4) Well 21-4A <br /> a. Barium <br /> b. Phosphorus <br />5) Well 29-3 <br /> a. Barium <br />6) Well 19-2 <br /> a. Barium <br />7) Well 21-46 <br /> Fiuoride <br />indicate values that exceed either the Numeric Protective Level (NPL) or the <br />Early Warning Indicator (EWI) level established under the MLRB 112 permit. <br />Charts of this data are presented in the following pages for reference. <br />Generally, the outlying data fluctuates very little from the NPL or EWI. The <br />variations observed are similar to natural phenomenon and the variability is not <br />consistently trending in one direction. <br />