Potential Effects of Contaminants on Fraser River Sockeye Salmon

Table 4.3. Summary <strong>of</strong> the available surface-water chemistry data for the Lower Fraser River Area <strong>of</strong> Interest.Life Stage/Class/AnalytennDetect% Non-DetectMeanSDGeometricMeanMinMaxPercentile Distribution5th 10th 25th 50th 75th 90th 95thMetals (µg/L)Aluminum, total 75 75 0% 3370 1910 2640 0.7 9170 1140 1380 1870 2860 4450 6080 7090Arsenic, total 60 59 2% 1.15 0.637 0.938 0.005 3.8 0.4 0.49 0.723 1.1 1.4 1.74 1.92Boron, total 20 19 5% 2.89 1.07 2.31 0.05 4.1 0.478 1.31 2.8 3.15 3.6 3.72 3.91Cadmium, total 76 75 1% 0.418 0.371 0.246 0.0005 1.6 0.0333 0.0495 0.112 0.3 0.525 0.95 1.13Chromium, total 76 75 1% 5.91 3.3 4.6 0.0025 15.1 1.98 2.3 3.48 5.37 8.19 11.1 11.7Cobalt, total 71 70 1% 2.54 1.43 2 0.001 6.9 0.8 1 1.56 2.2 3.35 4.8 5.2Copper, total 80 80 0% 10.9 15.8 7.44 2.5 95.5 3 3.15 4.5 7 9.74 16 22.1Iron, total 88 88 0% 5070 3790 3850 0.5 28000 1640 1920 2780 4230 6120 9130 9720Lead, total 80 79 1% 2.54 1.67 2.07 0.496 8 0.676 0.892 1.4 2.05 3.13 5.12 6Manganese, total 80 80 0% 121 66.1 105 35.2 360 42.9 53 72.9 100 159 220 227Mercury, total 21 21 0% 22.8 19.8 18 5 80 6 8 20 20 20 20 80Molybdenum, total 75 70 7% 0.784 1.02 0.564 0.0025 5 0.359 0.4 0.5 0.516 0.6 0.8 2.2Nickel, total 69 69 0% 8.56 4.69 7.41 2.7 21.4 3.15 3.66 5 7.2 11.1 15.5 18.2Selenium, total 56 47 16% 0.142 0.112 0.113 0.025 0.6 0.0438 0.05 0.0875 0.1 0.2 0.2 0.4Silver, total 51 31 39% 0.0945 0.303 0.0427 0.0005 2.2 0.0115 0.015 0.0285 0.05 0.05 0.1 0.1Chlorophenols (µg/L)Dichlorophenols 3 0 100% 0.025 NA 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025Monochlorophenols 3 0 100% 0.025 NA 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025Pentachlorophenol 3 0 100% 0.025 NA 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025Tetrachlorophenols 3 0 100% 0.025 NA 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025Trichlorophenols 3 0 100% 0.025 NA 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025n = number <strong>of</strong> samples; detect = detected; SD = standard deviation; NA = no data available; TSS = total suspended solids.No data were available for the following areas <strong>of</strong> interest within the Fraser River Basin: Harrison River, Nahatlatch, Seton-Portage.One-half the detection limit was substituted for non-detect values in the distribution calculations.The minimum value shown is the lower <strong>of</strong> one-half the detection limit or the lowest detectable measurement.The maximum value shown is the higher <strong>of</strong> one-half the detection limit or the highest detectable measurement.T-97