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Potential Effects of Contaminants on Fraser River Sockeye Salmon

Potential Effects of Contaminants on Fraser River Sockeye Salmon

Potential Effects of Contaminants on Fraser River Sockeye Salmon

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Table 4.7. Summary <str<strong>on</strong>g>of</str<strong>on</strong>g> the available surface-water chemistry data for the Kakawa Lake Area <str<strong>on</strong>g>of</str<strong>on</strong>g> Interest.Life Stage/Class/AnalytennDetect% N<strong>on</strong>-DetectMeanSDGeometricMeanMinMaxPercentile Distributi<strong>on</strong>5th 10th 25th 50th 75th 90th 95thC<strong>on</strong>venti<strong>on</strong>als (c<strong>on</strong>tinued)Residue N<strong>on</strong>-filterable (TSS; mg/L) 4 4 0% 7.50 4.93 6.09 2.00 14.0 2.75 3.50 5.75 7.00 8.75 11.9 13.0Temperature (C) 6 6 0% 8.28 3.97 7.51 4.00 15.0 4.13 4.25 5.50 8.50 9.03 12.1 13.6Turbidity (NTU) 2 2 0% 14.4 19.2 4.73 0.800 28.0 2.16 3.52 7.60 14.4 21.2 25.3 26.6Nutrients (µg/L)Nitrate (NO 3 ), dissolved 4 4 0% 77.5 17.1 76.1 60 100 61.5 63 67.5 75 85 94 97Nitrogen - Nitrite, dissolved (NO 2 ) 6 0 100% 2.5 NA 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5Nitrogen Amm<strong>on</strong>ia, dissolved 4 3 25% 4.88 1.65 4.61 2.5 6 2.88 3.25 4.38 5.5 6 6 6Phosphorus, total (stream) 4 4 0% 16 15.7 11.5 5 39 5.3 5.6 6.5 10 19.5 31.2 35.1Major I<strong>on</strong>s (mg/L)Chloride, dissolved 6 4 33% 0.450 0.173 0.420 0.250 0.700 0.250 0.250 0.313 0.500 0.500 0.600 0.650Sulfate, dissolved 5 1 80% 3.28 1.74 3.02 2.50 6.40 2.50 2.50 2.50 2.50 2.50 4.84 5.62Metals (µg/L)Copper, total 4 2 50% 1.5 1.22 1.11 0.5 3 0.5 0.5 0.5 1.25 2.25 2.7 2.85Ir<strong>on</strong>, total 3 3 0% 300 200 247 100 500 120 140 200 300 400 460 480Lead, total 3 1 67% 1 0.866 0.794 0.5 2 0.5 0.5 0.5 0.5 1.25 1.7 1.85Manganese, total 4 2 50% 22.5 18.9 17.8 10 50 10 10 10 15 27.5 41 45.5Nickel, total 4 1 75% 6.25 2.5 5.95 5 10 5 5 5 5 6.25 8.5 9.25n = number <str<strong>on</strong>g>of</str<strong>on</strong>g> samples; detect = detected; SD = standard deviati<strong>on</strong>; NA = no data available; TSS = total suspended solids.No data were available for the following areas <str<strong>on</strong>g>of</str<strong>on</strong>g> interest within the <strong>Fraser</strong> <strong>River</strong> Basin: Harris<strong>on</strong> <strong>River</strong>, Nahatlatch, Set<strong>on</strong>-Portage.One-half the detecti<strong>on</strong> limit was substituted for n<strong>on</strong>-detect values in the distributi<strong>on</strong> calculati<strong>on</strong>s.The minimum value shown is the lower <str<strong>on</strong>g>of</str<strong>on</strong>g> <strong>on</strong>e-half the detecti<strong>on</strong> limit or the lowest detectable measurement.The maximum value shown is the higher <str<strong>on</strong>g>of</str<strong>on</strong>g> <strong>on</strong>e-half the detecti<strong>on</strong> limit or the highest detectable measurement.T-110

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