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Pacific Southwest, Region 9

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

SF Deep Ocean Disposal Site (SF-DODS)

SF-DODS Quick Finder
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

Tissue Chemistry for the Clam Macoma nasuta Exposed to SF-DODS Reference Area Sediments

PARAMETER Results from Separate Bioassays Overall Range
TRACE METALS (ppm ww)
Arsenic 2.3-4.0 2.8-4.0 2.4-3.0 3.3-3.7 3.0-3.9 2.2-2.5 2.2-4.0
Cadmium nd-0.03 0.03-0.05 0.01-0.04 0.03-0.05 0.02-0.04 0.01-0.02 nd-0.05
Chromium 0.2-0.4 0.3-0.6 0.3-0.4 0.2-0.3 0.3-0.5 0.4-0.5 0.2-0.6
Copper 1.2-2.5 2.1-8.7 1.8-2.9 1.4-2.0 1.6-2.0 2.3-3.1 1.2-8.7
Lead 0.1-0.2 0.1-0.8 0.1-0.2 0.1 0.1-0.2 0.1-0.3 0.1-0.8
Mercury 0.01 0.01-0.02 0.01 0.01 0.01 0.1 0.01-0.1
Nickel 0.5-0.8 0.6-4.3 0.4-0.5 0.5-0.7 0.6-0.9 0.2-1.0 0.2-4.3
Selenium 0.2-0.3 0.3-0.4 0.2 0.2-0.4 0.2-0.3 0.3 0.2-0.4
Silver 0.02-0.06 0.06-0.26 0.05-0.1 0.03-0.04 0.02-0.12 0.1 0.02-0.26
Zinc 11.0-14.0 13.6-18.2 12.6-16.6 8.8-13.6 9.0-14.0 15-18 8.8-18.2
ORGANICS (ppb ww)
Total LPAH (a) 2-3 nd 1-2 6-10 2-5 nd nd-10
Total HPAH (b) 12-17 nd-26 3-8 21-25 2-7 nd<40 nd-26
Total PAHs 12-17 nd-26 4-9 27-33 4-11 nd<40 nd-33
Chlorinated Pesticides (ppb ww)
Aldrin nd nd 0.7 nd nd nd nd-0.7
Dieldrin nd nd nd nd nd nd nd
Chlordane nd nd nd nd nd nd nd
DDE/DDD/DDT nd nd 0.9 1.4-1.8 0.4-0.6 nd nd-1.8
Endosulfan I nd nd nd nd nd nd nd
Endosulfan II nd nd nd nd nd nd nd
Endosulfan Sulfate nd nd nd nd nd nd nd
Endrin nd nd nd nd nd nd nd
Heptachlor nd nd 0.18 nd nd nd nd-0.18
Heptachlor Epoxide nd nd nd nd nd nd nd
Alpha- BHC nd nd 0.1-0.4 nd 0.2 nd nd-0.4
Beta-BHC nd nd nd nd nd nd nd
Delta-BHC nd nd nd nd nd nd nd
Gamma-BHC 0.13 nd nd nd nd N/A nd-0.13
Toxaphene nd nd<100 nd nd nd nd nd
Total PCB (ppb ww) (c) nd<20 nd<20 2.6-4.2 nd 2.5-3.5 nd<20 nd-4.2
Butyltins (ppb ww) (d) 1.7-3.6 3.1-10.2 2.2-3.4 nd-1.6 4.0-11.0 N/A nd-11.0
NOTES:
  1. Reported as total of 6 LPAHs:   naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene
  2. Reported as total of 9 HPAHs:   fluoranthene, pyrene, benzo(a)anthracene, chrysene, Benzo(b,k)fluoranthene, benzo(a)pyrene, dibenzo(a,h)anthracene, benzo(g,h,i)perylene, indeno(1,2,3-c,d)pyrene
  3. Reported as total of Aroclor equivalents 1242, 1248, 1254, and 1260
  4. Reported as total of Mono-, Di-, and Tri- and Tetrabutyltin

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