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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 4.23. Evaluati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> potential hazards in surface water posed to sockeye salm<strong>on</strong> exposed to c<strong>on</strong>taminants within the Kakawa Lake Area <str<strong>on</strong>g>of</str<strong>on</strong>g>Interest (hazard quotients >1.0 were used to identify c<strong>on</strong>taminants that pose potential hazards to sockeye salm<strong>on</strong>).Chemical <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>Potential</str<strong>on</strong>g> C<strong>on</strong>cernMaximum Hazard QuotientSpawning & Incubati<strong>on</strong> Juvenile Rearing Smolt Outmigrati<strong>on</strong> Adult Upstream Migrati<strong>on</strong>Pre-1990 Post-1990 Pre-1990 Post-1990 Pre-1990 Post-1990 Pre-1990 Post-1990C<strong>on</strong>venti<strong>on</strong>alspH 1 ND ND ND ND 0 ND 0 NDResidue N<strong>on</strong>-filterable (TSS) ND ND ND ND 0.56 ND 0.56 NDTurbidity ND ND ND ND 14 ND 1.65 NDNutrientsAmm<strong>on</strong>ia, dissolved ND ND ND ND 0.00784 ND 0.00856 NDNitrate (NO 3 ), dissolved ND ND ND ND 0.0345 ND 0.0345 NDNitrogen-Nitrite, dissolved (NO 2 ) ND ND ND ND 0.0417 ND 0.3 NDPhosphorus, total (stream) ND ND ND ND 7.8 ND 3.2 NDMajor I<strong>on</strong>sChloride, dissolved ND ND ND ND 0.00304 ND 0.00435 NDSulfate, dissolved ND ND ND ND 0.064 ND 0.106 NDMetalsArsenic, total ND ND ND ND ND ND 0.5 NDCopper, total ND ND ND ND 1.5 ND 1.5 NDIr<strong>on</strong>, total ND ND ND ND 1.67 ND 1.67 NDLead, total ND ND ND ND 2 ND 2 NDManganese, total ND ND ND ND 0.0722 ND 0.0289 NDMolybdenum, total ND ND ND ND ND ND 0.00822 NDNickel, total ND ND ND ND 0.4 ND 0.2 NDND = no data; TSS = total suspended solids.Only chemicals <str<strong>on</strong>g>of</str<strong>on</strong>g> potential c<strong>on</strong>cern for which usable data were available in an area <str<strong>on</strong>g>of</str<strong>on</strong>g> interest were reported.Bolded values indicate hazard quotients >1.0.Pre-1990 includes 1990.1 For pH, a reported maximum hazard quotient <str<strong>on</strong>g>of</str<strong>on</strong>g> zero indicates that no measurements were outside the TSV range (i.e., all pH measurements were between 6.5 and 9.0).T-152

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