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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 4.7. 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 95thAdult Upstream Migrati<strong>on</strong>C<strong>on</strong>venti<strong>on</strong>alsHardness (mg/L) 11 11 0% 32.6 10.3 31.1 18.7 47.6 19.3 19.9 24.6 31.0 41.3 44.6 46.1Dissolved Oxygen (mg/L) 10 10 0% 10.6 0.851 10.5 9.40 11.9 9.58 9.76 9.88 10.5 11.1 11.8 11.9pH (pH units) 11 11 0% 7.83 0.195 7.83 7.50 8.10 7.55 7.60 7.70 7.90 7.95 8.05 8.08Residue N<strong>on</strong>-filterable (TSS; mg/L) 8 7 13% 4.94 5.13 2.85 0.500 14.0 0.675 0.850 1.75 2.00 8.00 11.9 13.0Temperature (C) 10 10 0% 13.7 4.39 13.1 8.50 20.3 8.50 8.50 9.40 15.0 16.5 19.0 19.6Turbidity (NTU) 2 2 0% 2.05 1.77 1.62 0.800 3.30 0.925 1.05 1.43 2.05 2.68 3.05 3.18Nutrients (µg/L)Nitrate (NO 3 ), dissolved 7 7 0% 61.4 24.1 57.3 30 100 33 36 45 60 75 88 94Nitrogen - Nitrite, dissolved (NO 2 ) 10 1 90% 4.05 4.9 3.05 2.5 18 2.5 2.5 2.5 2.5 2.5 4.05 11Nitrogen Amm<strong>on</strong>ia, dissolved 7 3 57% 3.86 1.73 3.54 2.5 6 2.5 2.5 2.5 2.5 5.5 6 6Phosphorus, total (stream) 8 6 25% 6.38 5.39 4.59 1.5 16 1.5 1.5 2.63 4.5 8.5 13.9 15Major I<strong>on</strong>s (mg/L)Chloride, dissolved 11 8 27% 0.541 0.234 0.491 0.250 1.00 0.250 0.250 0.375 0.500 0.700 0.700 0.850Sulfate, dissolved 7 5 29% 7.01 3.51 6.05 2.50 10.6 2.50 2.50 4.45 6.80 10.2 10.5 10.6Metals (µg/L)Arsenic, total 1 0 100% 2.5 NA 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5Copper, total 7 2 71% 0.929 0.932 0.713 0.5 3 0.5 0.5 0.5 0.5 0.75 1.8 2.4Ir<strong>on</strong>, total 6 5 17% 258 206 183 50 500 62.5 75 100 200 450 500 500Lead, total 6 1 83% 0.75 0.612 0.63 0.5 2 0.5 0.5 0.5 0.5 0.5 1.25 1.63Manganese, total 7 1 86% 10.7 4.5 10 5 20 6.5 8 10 10 10 14 17Molybdenum, total 1 1 0% 0.6 NA 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6Nickel, total 7 0 100% 5 NA 5 5 5 5 5 5 5 5 5 5Smolt Outmigrati<strong>on</strong>C<strong>on</strong>venti<strong>on</strong>alsHardness (mg/L) 6 6 0% 22.9 4.75 22.5 18.7 31.0 19.0 19.3 19.9 20.8 25.0 28.6 29.8Dissolved Oxygen (mg/L) 6 6 0% 11.7 1.62 11.6 9.40 14.4 9.83 10.3 11.2 11.6 11.9 13.2 13.8pH (pH units) 6 6 0% 7.83 0.184 7.82 7.50 8.05 7.58 7.65 7.80 7.85 7.90 7.98 8.01T-109

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