Summaries of Columbia and Kootenay River Sediment Objective Monitoring, November 2000 and October 2001
The following tables summarize the results of sediment objective monitoring conducted by the B.C.
Ministry of Environment on the lower Columbia River between Hugh Keenleyside Dam
and the US Border, and on the Kootenay River between the West Arm of Kootenay
Lake and the confluence with the Columbia River. On November 23, 2000 sediment
samples were collected on the Columbia River at Birchbank (east bank; average
depth 3.2m; 4 grabs composited) and Waneta (right bank; average depth 2.1m; 4
grabs composited). The samples were collected from a boat using a petite ponar
grab sampler. The top 10 cm of each acceptable grab was collected. The samples
were analyzed for dioxins and furans, total metals (ICP), mercury, resin and
fatty acids and particle size. Sediment samples from both these locations were
also analyzed for 14 and 28 day Hyalella azteca toxicity tests.
On October 15, 2001 sediment samples were collected from Arrow Lake (upstream of Syringa Creek; average depth 4.5 m; 7 grabs composited) and on the Columbia River upstream of the Celgar influence (average depth 3m; 4 grabs composited). On October 16 2001 sediment samples were collected from Birchbank (east bank; average depth 3m; 20 grabs composited) and Waneta (west bank; average depth 3 m; 30 grabs composited). On October 17 2001 sediment samples were collected from Kootenay River at Glade (east bank; average depth 1.5 m; 4 grabs composited) and Kootenay River at Taghum (Taghum beach; average depth 2.5m; 10 grabs composited). The samples were collected from a boat using a petite ponar grab sampler. The top 10 cm of each acceptable grab was collected.
The Arrow Lake and Columbia River samples were analyzed for acid volatile sulphides, dioxins and furans, total metals (ICPMS), mercury, resin and fatty acids, PCBs, chlorophenols, PAHs and particle size. Sediment samples from the Columbia River sites were also analyzed for 28 day Hyalella azteca toxicity tests. The Kootenay River samples were analyzed for dioxins and furans, total metals (ICPMS), mercury, particle size, PCBs and PAHs. Sediment samples from the Kootenay River sites were also analyzed for 28 day Hyalella azteca toxicity tests.
These results are provided for information only. An interpretive report will be released in the future. For more information please contact:
Robyn Roome
Environmental Impact Assessment Biologist
B.C. Ministry of Environment
401-333 Victoria Street
Nelson, BC V1L 4K3
Phone: 250 354-6362
Fax: 250 354-6367
e-mail: Robyn.Roome@gov.bc.ca
Summary of Results for November 2000 >>
Summary of Results for November 2001 >>
