Tests of Normality (all data)Variable N W pDiff HYDS-PSMSDiff RCS-RPPSDiff PSMS-RPPSDiff PDBS-SNAPDiff PDBS-RPPSDiff PDBS-RCSDiff PDBS-PSMSDiff LOW-3VOLDiff HYDS-RPPSDiff HYDS-RCSDiff HYDS-PDBSDiff RPPS-SNAPDiff RCS-SNAPDiff LOW-RPPSDiff LOW-RCSDiff LOW-PSMSDiff LOW-PDBSDiff LOW-HYDSDiff LOW-SNAPDiff 3VOL-SNAPDiff 3VOL-RPPSDiff 3VOL-RCSDiff 3VOL-PSMSDiff 3VOL-PDBSDiff 3VOL-HYDS

359 0.207911 0.000000457 0.479420 0.000000471 0.181636 0.00000072 0.639571 0.000000

232 0.140564 0.000000122 0.508494 0.000000120 0.134610 0.000000379 0.324959 0.000000413 0.376365 0.00000049 0.675142 0.00000095 0.174442 0.000000

134 0.331255 0.000000132 0.309650 0.000000336 0.371509 0.000000168 0.343908 0.000000171 0.408493 0.00000092 0.213818 0.000000

175 0.399935 0.00000052 0.320145 0.00000053 0.442874 0.000000

338 0.371674 0.000000168 0.330953 0.000000173 0.426624 0.00000099 0.140788 0.000000

180 0.398324 0.000000

Tests of Normality (Anions)Variable N W pDiff 3VOL-HYDSDiff 3VOL-PSMSDiff 3VOL-RCSDiff 3VOL-RPPSDiff 3VOL-SNAPDiff HYDS-PSMSDiff HYDS-RPPSDiff LOW-3VOLDiff LOW-HYDSDiff LOW-PSMSDiff LOW-RCSDiff LOW-RPPSDiff LOW-SNAPDiff PSMS-RPPSDiff RCS-RPPSDiff RCS-SNAPDiff RPPS-SNAP

18 0.797922 0.00142017 0.829237 0.00525624 0.574926 0.00000042 0.761640 0.00000119 0.757258 0.00029244 0.318190 0.00000049 0.810167 0.00000242 0.586786 0.00000018 0.725312 0.00016016 0.818533 0.00485224 0.827937 0.00087541 0.840622 0.00004419 0.566944 0.00000250 0.358986 0.00000070 0.734002 0.00000057 0.487590 0.00000059 0.531978 0.000000

Tests of Normality (Dioxane)Variable N W pDiff 3VOL-SNAPDiff HYDS-PSMSDiff HYDS-RPPSDiff LOW-3VOLDiff LOW-HYDSDiff LOW-PSMSDiff LOW-RCSDiff LOW-RPPSDiff LOW-SNAPDiff PSMS-RPPSDiff RCS-RPPSDiff RCS-SNAPDiff RPPS-SNAPDiff 3VOL-HYDSDiff 3VOL-PSMSDiff 3VOL-RCSDiff 3VOL-RPPSDiff PSMS-SNAP

3 0.968474 0.6590866 0.776920 0.0360747 0.649894 0.0010267 0.618747 0.0004513 0.933702 0.5026374 0.888178 0.3747393 0.7500007 0.882430 0.2374543 0.780873 0.0696109 0.853420 0.0812589 0.639863 0.0002816 0.788654 0.0463499 0.761860 0.0074383 0.940317 0.5286484 0.861341 0.2650423 0.927386 0.4789107 0.708130 0.0045456 0.778000 0.036924

Tests of Normality (Hex Chrome)Variable N W pDiff 3VOL-HYDSDiff 3VOL-PSMSDiff 3VOL-RCSDiff 3VOL-RPPSDiff HYDS-PSMSDiff HYDS-RCSDiff HYDS-RPPSDiff LOW-3VOLDiff LOW-HYDSDiff LOW-PSMSDiff LOW-RCSDiff LOW-RPPSDiff PSMS-RPPSDiff RCS-RPPS

7 0.928093 0.5348005 0.945728 0.7066668 0.788407 0.021483

14 0.943029 0.45850816 0.645369 0.0000453 0.991758 0.826375

18 0.918487 0.12153413 0.954328 0.6650587 0.820156 0.0644405 0.978927 0.9288008 0.928453 0.502098

14 0.963886 0.78619221 0.789878 0.00046124 0.864856 0.004178

Tests of Normality (Metals)Variable N W pDiff RCS-RPPSDiff 3VOL-HYDSDiff 3VOL-PSMSDiff 3VOL-RCSDiff 3VOL-RPPSDiff HYDS-PSMSDiff HYDS-RCSDiff HYDS-RPPSDiff LOW-3VOLDiff LOW-HYDSDiff LOW-PSMSDiff LOW-RCSDiff LOW-RPPSDiff PSMS-RPPS

243 0.585240 0.000000108 0.479546 0.000000100 0.430403 0.00000090 0.360893 0.000000

192 0.369943 0.000000203 0.372468 0.00000046 0.695129 0.000000

256 0.300876 0.000000230 0.364974 0.000000107 0.411653 0.000000104 0.428014 0.00000092 0.397665 0.000000

198 0.401012 0.000000288 0.513884 0.000000

Tests of Normality (VOCs)Variable N W pDiff 3VOL-HYDSDiff 3VOL-PDBSDiff 3VOL-PSMSDiff 3VOL-RCSDiff 3VOL-RPPSDiff 3VOL-SNAPDiff HYDS-PDBSDiff HYDS-PSMSDiff HYDS-RPPSDiff LOW-3VOLDiff LOW-HYDSDiff LOW-PDBSDiff LOW-PSMSDiff LOW-RCSDiff LOW-RPPSDiff LOW-SNAPDiff PDBS-PSMSDiff PDBS-RCSDiff PDBS-RPPSDiff PDBS-SNAPDiff PSMS-RPPSDiff RCS-RPPSDiff RCS-SNAPDiff RPPS-SNAP

44 0.155558 0.00000099 0.140788 0.00000047 0.150172 0.00000043 0.622475 0.00000083 0.120578 0.00000031 0.617451 0.00000095 0.174442 0.00000090 0.141699 0.00000083 0.190975 0.00000087 0.165826 0.00000040 0.151461 0.00000092 0.213818 0.00000042 0.148461 0.00000041 0.587885 0.00000076 0.120668 0.00000030 0.546677 0.000000

120 0.134610 0.000000122 0.508494 0.000000232 0.140564 0.00000072 0.639571 0.000000

103 0.116578 0.000000111 0.533069 0.00000069 0.607840 0.00000066 0.609977 0.000000

Tests of Normality (Individual Data Sets)Variable N W p3VOL - ALLHYDS - ALLMICRO - ALLPDBS - ALLPSMS - ALLRCS - ALLRPPS - ALLSNAP - ALL3VOL - DIOXHYDS - DIOXMICRO - DIOXPDBS - DIOXPSMS - DIOXRCS - DIOXRPPS - DIOXSNAP - DIOX3VOL - ANIONHYDS - ANIONMICRO - ANIONPDBS - ANIONPSMS - ANIONRCS - ANIONRPPS - ANIONSNAP - ANION3VOL - CR6HYDS - CR6MICRO - CR6PDBS - CR6PSMS - CR6RCS - CR6RPPS - CR6SNAP - CR63VOL - METALSHYDS - METALSMICRO - METALSPDBS - METALSPSMS - METALSRCS - METALSRPPS - METALSSNAP - METALS3VOL - VOCsHYDS - VOCsMICRO - VOCsPDBS - VOCsPSMS - VOCsRCS - VOCsRPPS - VOCsSNAP - VOCs

444 0.434247 0.000000468 0.494939 0.000000467 0.442800 0.000000315 0.079462 0.000000525 0.467611 0.000000616 0.424876 0.000000

1133 0.442326 0.000000183 0.386064 0.000000

9 0.600951 0.0000987 0.556790 0.0000839 0.654885 0.00042109 0.772892 0.0099759 0.710241 0.001869

19 0.638761 0.0000119 0.700835 0.001451

55 0.698086 0.00000051 0.806745 0.00000155 0.759596 0.0000000

57 0.821963 0.00000181 0.630138 0.000000

136 0.727464 0.00000069 0.581025 0.00000016 0.963728 0.72962719 0.790537 0.00083616 0.922202 0.1830090

19 0.869825 0.01434325 0.959399 0.40264045 0.890431 0.0004840

269 0.437528 0.000000291 0.506917 0.000000275 0.449299 0.000000

0326 0.467599 0.000000344 0.461029 0.000000680 0.453805 0.000000

095 0.089083 0.000000

100 0.165917 0.000000112 0.084841 0.000000315 0.079462 0.000000114 0.154890 0.000000157 0.425247 0.000000253 0.092162 0.000000105 0.478985 0.000000