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Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

SF Deep Ocean Disposal Site (SF-DODS)

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Dredging & Sediment Home SF-DODS Overview Table 1 Table 4 Regional Teams & Partners Vessel route to SF-DODS Table 2 Disposal Sites Reference Area Database Table 3

Percent Survival in Toxicity Bioassays of SF-DODS Reference Area Sediments

SPECIES Average Survival in Separate Bioassays (percent) Overall Average Survival (a)
AMPHIPODS
Rhepoxinius abronius 89 94 86 97 83 89.8 (n=5)
Ampelisca abdita 92 98 88 90.5 (n=4)
POLYCHAETES
Nephtys caecoides 96 99 93 97 95 92.5 95.4 (n=6)
Neanthes arenaceodentata 96 100 98.0 (n=2)
NOTE:
(a)   Direct (not statistical) comparison is made between these values and test sediment average survival results.
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