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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 4.11. Summary <str<strong>on</strong>g>of</str<strong>on</strong>g> the available surface-water chemistry data for the Chilko <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 95thJuvenile RearingC<strong>on</strong>venti<strong>on</strong>alsHardness (mg/L) 7 7 0% 23.9 2.84 23.8 21.0 28.3 21.1 21.2 21.7 23.2 25.9 27.5 27.9Dissolved Oxygen (mg/L) 6 6 0% 10.3 1.59 10.2 8.80 12.8 8.85 8.90 9.10 9.90 11.3 12.2 12.5pH (pH units) 18 18 0% 7.36 0.273 7.35 6.90 7.70 6.99 7.00 7.13 7.35 7.60 7.70 7.70Residue N<strong>on</strong>-filterable (TSS; mg/L) 11 10 9% 9.36 8.49 6.58 2.00 26.0 2.00 2.00 4.00 6.00 12.0 24.0 25.0Temperature (C) 4 4 0% 8.00 4.45 6.28 1.50 11.5 2.63 3.75 7.13 9.50 10.4 11.1 11.3Turbidity (NTU) 6 6 0% 13.6 4.94 12.8 6.50 21.0 7.88 9.25 12.0 12.5 16.0 19.0 20.0Nutrients (µg/L)Nitrate (NO 3 ), dissolved 4 2 50% 45 63.5 23 10 140 10 10 10 15 50 104 122Nitrogen - Nitrite, dissolved (NO 2 ) 12 2 83% 2.42 0.469 2.35 1 3 1.83 2.5 2.5 2.5 2.5 2.5 2.73Phosphorus, total (stream) 11 11 0% 12.2 5.95 11.1 6 24 6.5 7 9 10 12 23 23.5Major I<strong>on</strong>s (mg/L)Sulfate, dissolved 17 17 0% 7.21 1.22 7.11 5.50 9.50 5.90 6.00 6.20 7.00 7.80 9.24 9.34Metals (µg/L)Aluminum, total 10 10 0% 1550 1030 1320 660 3490 692 723 1080 1170 1440 3410 3450Arsenic, total 8 4 50% 0.75 0.267 0.707 0.5 1 0.5 0.5 0.5 0.75 1 1 1Bor<strong>on</strong>, total 10 3 70% 27 25.6 16.8 4 76 4 4 8 20 30.5 68.8 72.4Chromium, total 4 4 0% 3 1.41 2.78 2 5 2 2 2 2.5 3.5 4.4 4.7Cobalt, total 10 1 90% 1.95 0.762 1.86 1.5 4 1.5 1.5 1.5 1.75 2 2.2 3.1Copper, total 1 1 0% 1 NA 1 1 1 1 1 1 1 1 1 1Ir<strong>on</strong>, total 11 11 0% 1220 710 1080 562 2610 599 635 863 960 1170 2590 2600Lead, total 1 0 100% 0.5 NA 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5Molybdenum, total 11 1 91% 1.99 0.0302 1.99 1.9 2 1.95 2 2 2 2 2 2Silver, total 4 0 100% 0.05 NA 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05Spawning & Incubati<strong>on</strong>C<strong>on</strong>venti<strong>on</strong>alsHardness (mg/L) 5 5 0% 24.5 3.27 24.3 21.0 28.3 21.1 21.1 21.3 24.8 26.9 27.7 28.0Dissolved Oxygen (mg/L) 5 5 0% 10.6 1.57 10.5 9.00 12.8 9.08 9.16 9.40 10.4 11.6 12.3 12.6T-123

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