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YES TEST FOR OUTLIERS: NO <br /> OUTLIERS PRESENT? <br /> [TEST FOR N( NO -TEST FOR NORMALITY: ? <br /> N <br /> NORMAL DIS NORMAL DISTRIBUTION? <br /> YES <br /> I REMOVE OUTLIERS j TRANSFORM DATA NO <br /> CYES <br /> YES USE NOPARAMETRIC <br /> PROCEDURE <br /> DETERMINE PERCENTAGE <br /> OF RESULTS(P)ABOVE THE <br /> DETECTION LIMIT((DL)AND <br /> E <br /> THE NUMBER OF RESULTS <br /> (N)THAT ARE GREATER <br /> THAN THE DL. <br /> P 205% 50%2-! P<85% 10%?-P<50%® P <10% <br /> I F <br /> F <br /> N>=3 N20 N?-5 <br /> IF <br /> TYES 4ES TYES PERFORM <br /> QUALITATIVE <br /> REPLACE NON DETECTS WITH ADJUST THE MEAN AND INTER-WELL <br /> 1/2*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 EXCEED <br /> NO PROPORTION IN <br /> BACKGROUND WELL <br /> YES SIGNIFICANTLY? <br /> NO STATISTICAL EVIDENCE I <br /> OF CONTAMINATION <br /> __j <br /> YES <br /> STATISTICALLY <br /> SIGNIFICANT EVIDENCE F] <br /> CONTAMINATION <br /> FIGURE D-1 <br /> SCHEMATIC OF STATISTICAL <br /> ANALYSIS PROCEDURES <br /> CITY OF STOCKTON <br /> CH21WHILL <br />