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Outlier Analysis Summary Page 1 <br /> Date:4/7/06,4:54 PM Facility:Austin Road LF <br /> Data File:AUSTININ Client:Austin Road LF <br /> Constituent Well Outlier N Mean Std. Dev. Tn Distribution Normality Test <br /> Bicarbonate as CaCO3(mg/L) SW-1 Yes 13 77.38 50.7 2.285 Normal Shapiro Wilk <br /> Calcium Dissolved(mg/L) SW-1 Yes 10 14.64 10.06 2.11 Normal Shapiro Wilk <br /> Carbonate as CaCO3(mg/L) SW-1 Yes 13 1.319 1.83 2.285 Unknown Shapiro Wilk <br /> Chemical Oxygen Demand[COD](mg/L) SW-1 Yes 11 58.45 41.6 2.176 Log-normal Shapiro Wilk <br /> Chloride(mg/L) SW-1 Yes 24 6.344 5.587 2.624 Log-normal Shapiro Wilk <br /> Magnesium Dissolved(mg/L) SW-1 Yes 10 7.74 5.019 2.11 Normal Shapiro Wilk <br /> Nitrate as N (mg/L) SW-1 No 24 0.6495 1.075 2.644 Log-normal Shapiro Wilk <br /> Oil&Grease(mg/L) SW-1 Possible n/a n/a 0 n/a n/a n/a <br /> Potassium Dissolved(mg/L) SW-1 No 10 2.292 1.755 2.176 Log-normal Shapiro Wilk <br /> Sodium Dissolved(mg/L) SW-1 No 10 8.48 4.726 2.176 Log-normal Shapiro Wilk <br /> Specific Conductance[Field](umhos/cm) SW-1 No 48 253.5 169.9 2.94 Log-normal Shapiro Wilk <br /> Sulfate as SO4(mg/L) SW-1 No 24 11.19 7.631 2.644 Log-normal Shapiro Wilk <br /> Temperature(Deg-C) SW-1 No 33 18.71 6.054 2.786 Normal Shapiro Wilk <br /> Total Dissolved Solids[TDS](mg/L) SW-1 No 37 172.6 118.7 2.835 Unknown Shapiro Wilk <br /> Total Organic Carbon[TOC](mg/L) SW-1 No 24 7.4 3.926 2.644 Normal Shapiro Wilk <br /> Turbidity(NTU) SW-1 Yes 31 82.46 99.66 2.745 Log-normal .Shapiro Wilk <br /> PH [Field] (su) SW-1 No 47 7.523 0.6736 2.931 Normal Shapiro Wilk <br /> ,8.6.005. <br /> )—kE,RST & ASSOCIATES, INC. <br />