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YES TEST FOR OUTLIERS: NO <br /> OUTLIERS PRESENT? <br /> TEST FOR NORMALITY: NO TEST FOR NORMALITY: <br /> NORMAL DISTRIBUTION?i [NORMAL DISTRIBUTION? <br /> IYES <br /> I REMOVE OUTLIERS 1TRANS.FORM DATA NO YES <br /> YES USE NOPARAMETRIC <br /> PROCEDURE <br /> DETERMINE PERCENTAGE <br /> OF RESULTS(P)ABOVE THE <br /> DETECTION LIMIT(DL)AND <br /> THE NUMBER OF RESULTS <br /> (N)THAT ARE GREATER <br /> THAN THE DL <br /> P >=85% so%>— P<85% io%k—P<50% P <10% <br /> IF IF <br /> 0 <br /> N>=3 N2—:3 0 Nk-5 <br /> I F <br /> IF <br /> TYES7 S TYES PERFORM A <br /> QUALITATIVE <br /> REPLACE NON DETECTS WITH ADJUST THE MEAN AND INTER-WELL <br /> 112*DL AND CALCULATE A STANDARD DEVIATION COMPARISON OF <br /> TOLERANCE LIMIT USING COHEN'S METHOD DATA <br /> AND CALCULATE A <br /> TOLERANCE LIMIT. USE AN INTER-WELL TEST <br /> OF PROPORTIONS <br /> DO VALUES IN THE PROPORTION OF DETECTS <br /> DETECTION WELL EXCEED IN DETECTION MONITORING <br /> THE TOLERANCE LIMIT? WELL WELLEXCEED <br /> NO PROPORTION IN <br /> BACKGROUND WELL <br /> YES SIGNIFICANTLY? <br /> NO STATISTICAL EVIDENCE <br /> OF CONTAMINATION YES <br /> STATISTICALLY <br /> SIGNIFICANT EVIDENCE OF <br /> CONTAMINATION <br /> FIGURE D-1 <br /> SCHEMATIC OF STATISTICAL <br /> ANALYSIS PROCEDURES <br /> CITY OF STOCKTON <br /> I�DI7 CH2MHILL <br />