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Potential Effects of Contaminants on Fraser River Sockeye Salmon

Potential Effects of Contaminants on Fraser River Sockeye Salmon

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Table 4.9. Summary <str<strong>on</strong>g>of</str<strong>on</strong>g> the available surface-water chemistry data for the North Thomps<strong>on</strong> <strong>River</strong> 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 95thMetals (µg/L; c<strong>on</strong>tinued)Selenium, total 2 2 0% 30.1 42.4 2.45 0.1 60 3.1 6.09 15.1 30.1 45 54 57Spawning & Incubati<strong>on</strong>C<strong>on</strong>venti<strong>on</strong>alspH (pH units) 7 7 0% 8.14 0.151 8.14 7.90 8.40 7.96 8.02 8.10 8.10 8.20 8.28 8.34Residue N<strong>on</strong>-filterable (TSS; mg/L) 5 4 20% 5.60 6.54 3.48 1.00 17.0 1.20 1.40 2.00 3.00 5.00 12.2 14.6Turbidity (NTU) 6 6 0% 1.78 1.85 1.06 0.300 4.90 0.300 0.300 0.425 1.05 2.65 4.00 4.45Nutrients (µg/L)Phosphorus, total (stream) 7 7 0% 11.9 7.95 9.86 3 28 4.5 6 8.5 10 12.5 20.2 24.1Major I<strong>on</strong>s (mg/L)Chloride, dissolved 6 6 0% 1.60 0.490 1.54 1.10 2.20 1.10 1.10 1.15 1.60 1.98 2.10 2.15Sulfate, dissolved 6 6 0% 12.0 3.96 11.5 8.00 18.5 8.28 8.55 9.20 11.0 13.9 16.4 17.5Smolt Outmigrati<strong>on</strong>C<strong>on</strong>venti<strong>on</strong>alsHardness (mg/L) 23 23 0% 34.8 7.94 34.0 22.1 54.1 23.6 24.3 30.2 35.9 37.5 41.3 50.2Dissolved Oxygen (mg/L) 1 1 0% 11.0 NA 11.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0pH (pH units) 72 72 0% 7.68 0.229 7.67 6.80 8.10 7.20 7.40 7.60 7.70 7.80 7.90 7.93Residue N<strong>on</strong>-filterable (TSS; mg/L) 57 52 9% 24.0 24.3 14.9 1.00 104 2.00 2.50 12.0 16.0 26.0 54.8 77.8Temperature (C) 20 20 0% 9.80 2.27 9.57 6.70 16.1 6.99 7.90 8.38 9.25 10.4 12.3 13.2Turbidity (NTU) 43 43 0% 3.94 4.08 2.54 0.200 17.0 0.600 0.828 1.40 2.40 5.45 8.20 14.4Nutrients (µg/L)Nitrate (NO 3 ), dissolved 13 13 0% 37.5 16.9 34.1 19 73 19.6 20.2 23 36 45 57 64.6Nitrogen - Nitrite, dissolved (NO 2 ) 17 2 88% 2.5 1.08 2.27 0.5 6 0.9 1.9 2.5 2.5 2.5 2.5 3.2Nitrogen Amm<strong>on</strong>ia, dissolved 17 7 59% 26.2 55 5.94 2.5 200 2.5 2.5 2.5 2.5 5 100 120Phosphorus, total (stream) 67 67 0% 22.4 19 16.8 3 95 4 5 11 16 28.5 38.2 65.7T-115

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