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v.9.1.20 n/a.EPA v.9.120 N•.EPA Sen's Slope Estimator Sen's Slope Estimator MW-9A MW-9B 2000 700 1600 n=20 560 n=20 Slope=-17.65 • • Slope=-14.72 units per year. • units per year. Mann-Kendall • Mann-Kendall 1200 stat stic=2s 420 statistic=-50 • critical=-73 critical=-73 ETrend not sig- E • Trend not sig. nificant at 98% nificant at 98% 800 • confidence level • confidence level (a=0.01 per 280 (a=0.01 per tail). tall). 400 140 0 0 3/3/97 12/18/99 1014/02 7/21/05 5/7/08 2/22/11 3/3/97 12/18/99 1014/02 7/21/05 5/7/08 2/22/11 Constituent Bicarbonate as CaCO3 Analysis Run 3/28/20113:28 PM Constituent Bicarbonate as CaCO3 Analysis Run 3/28/20113:28 PM Facility:French Camp LF Client:French Camp LF Data File:FRENCHIN Facility:French Camp LF Client:French Camp LF Data File:FRENCHIN v.9.1.20 Nn.EPA v.9.1201Je.EPA Sen's Slope Estimator Sen's Slope Estimator MW-t0A MW-6A(bg) 300 200 240 ^-78 160 n=18 Slope=3.837 Slope=-10.71 • . units per year. units per year. • Mann-Kendall Mann-Kendall 180 statistic=-14 120 statistic=-81 critical=-63 • • • critical=-63 E • • Trend not sig- E • • Decreasing trend nificant at 98% significant at 98% 120 confidence level confidence level (a=0.01 per 80 it,=0.01 per tail). • • tail). 60 40 0 0 5/13/05 7/9106 9/4/07 10/30/08 12/26/09 2/22/11 5/13/05 719/06 9/4/07 10/30/08 12/26/09 2/22/11 Constituent:Calcium Dissolved Analysis Run 3/28/20113:29 PM Constituent:Calcium Dissolved Analy ' Run 3/28/2011 3:29 PM Facility:French Camp LF Client:French Camp LF Data File:FRENCHIN Facility:French Camp LF Client: F Data File:FRENCHIN SHERST & ASSO*ES, INC."