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0 <br />2 <br />4 <br />6 <br />8 <br />10 <br />1/20/15 1/18/17 1/17/19 1/16/21 1/15/23 1/14/25 <br />Sen's Slope Estimator <br />MW-2R <br />Constituent: Magnesium,Dissolved Analysis Run 7/1/2025 12:48 PM <br />Foothill LF Client: Aptim Data: 061625 Foothill Landfill Database <br />Sanitas™ v.10.0.27 Software licensed to APTIM. EPA <br />mg/Ln = 21 <br />Slope = -0.1431 <br />units per year. <br />Mann-Kendall <br />statistic = -104 <br />critical = -78 <br />Decreasing trend <br />significant at 98% <br />confidence level <br />(α = 0.01 per <br />tail).