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Outlier Analysis Summary Page I <br /> Date:10/17/06,9:19 AM Facility:Austin Road LF <br /> Data File:AUSTININ Client:Austin Road LF <br /> Constituent well Outlier N Mean Std. Dev. Til Value(s) Distribution Normality Test <br /> Chloride(mg/L) SW-1 Yes 26 5.96 5.528 2.663 0.25 Log-normal Shapiro Wilk <br /> Nitrate as N(mg/L) SWA No 26 0.6069 1.042 2.681 n/a Log-normal Shapiro Wilk <br /> PH[Field](su) SW-1 No 49 7.577 0.7316 2.948 n/a Normal Shapiro Wilk <br /> Specific Conductance[Field](u cm) SW-1 Yes 50 294.7 360.1 2.948 2500 Log-normal Shapiro Wilk <br /> Total Dissolved Solids[TDS](mg/L) SWA No 39 167 118.1 2.857 n/a Unknown Shapiro Wilk <br /> Bicarbonate as CaCO3(mg/L) SW-1 Yes 15 72.93 48.4 2.371 240 Normal Shapiro Wilk <br /> Carbonate as CaCO3(mg/L) SW-1 Yes 15 1.243 1.706 2.371 7.4 Unknown Shapiro Wilk <br /> Suffate as SO4(mg/L) SW-1 No 26 10.53 7.687 2.681 n/a Log-normal Shapiro Wilk <br /> Temperature(Deg-C) SWA No 35 18.84 6.028 2.811 n/a Normal Shapiro Wilk <br /> Turbidity(NTU) SW-1 Yes 33 83.35 96.72 2.773 0.05 Log-normal Shapiro Wilk <br /> Chemical Oxygen Demand[COD](mg/L) SW-1 Yes 13 52.92 40.37 2.285 5 Log-normal Shapiro Wilk <br /> Oil&Grease(mg/L) SW-1 Possible n/a n/a 0 n/a n/a n/a n/a <br /> Calcium Dissolved(mg/L) SW-1 Yes 12 13.25 9.661 2.234 42 Normal Shapiro Wilk <br /> Magnesium Dissolved(mg/L) SW-1 No 12 6.958 4.896 2.285 n/a Log-normal Shapiro Wilk <br /> Potassium Dissolved(mg/L) SW-1 No 12 2.095 1.658 2.285 n/a Log-normal Shapiro Wilk <br /> Sodium Dissolved(mg/L) SW-1 No 12 7.6 4.743 2.285 n/a Log-normal Shapiro Wilk <br /> v.8.6.005. <br /> • ® i <br /> HE ST & ASSOCIATES, INC. <br />