Jump to main content or area navigation.

Contact EPA Pacific Southwest

Pacific Southwest, Region 9

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

Dredging and Sediment Management

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

SF Deep Ocean Disposal Site (SF-DODS) - Reference Area Database

Sediment Chemistry for the SF-DODS Reference Area

PARAMETER Results from Separate Assessments Overall Range
CONVENTIONALS
Grain Size (%)  
sand/gravel 34 60 59 45 16 37 39 16-60
silt 45 27 25 35 62 39 44 25-62
clay 21 13 16 20 22 24 17 13-24
Total Organic Carbon (%) 1.35 0.63 0.74 0.79 1.44 1.45 1.8 0.63-1.45
Total Volatile Solids (%) 2.49 4.28 4.38 2.34 5.74 N/A N/A 2.34-5.74
TRPH (ppm dw) nd<29 6.7 d<16 nd<16 17.1 1.8 nd>2.0 nd-17.1
TRACE METALS (ppm dw)
Arsenic 2.2 3.9 4.25 5.33 4 2.6 nd 2.2-5.33
Cadmium 0.5 0.3 0.3 0.4 0.6 0.3 nd 0.3-0.6
Chromium 171 225 247 197 172 283 69.2 69.2-283
Copper 23.5 20.3 21.8 21.8 30.7 86.3 18.3 18.3-86.3
Lead 10.8 9.1 6.8 8.2 9.2 26 5.1 5.1-26
Mercury 0.1 0.2 0.1 0.1 0.2 0.1 0.1 0.1-0.2
Nickel 68.1 63.5 70 69.4 82.8 238 50.9 50.9-238
Selenium 1.3 0.6 1.2 0.8 2.6 0.7 1.5 0.6-2.6
Silver 0.6 0.2 0.4 0.3 0.5 1 0.4 0.2-1.0
Zinc 84.3 82.5 82.3 76.3 91 288 60.8 60.8-288
ORGANICS (ppb dw)
Total LPAH (a) 48 11 14 65 77 nd nd nd-77
Total HPAH (b) 68 6 23 57 115 nd 31 nd-115
Total PAHs 116 17 37 122 192 nd 31 nd-192
Chlorinated Pesticides (ppb dw)
Aldrin nd nd nd nd nd nd nd nd
Dieldrin nd nd nd nd nd nd nd nd
Chlordane nd nd nd nd nd nd nd nd
DDE/DDD/DDT nd nd nd 1.2 nd nd 2.1 nd-2.1
Endosulfan I nd nd nd nd nd nd nd nd
Endosulfan II nd nd nd nd nd nd nd nd
Endosulfan Sulfate nd nd nd nd nd nd nd nd
Endrin nd nd nd nd nd nd nd nd
Heptachlor nd nd nd nd nd nd nd nd
Heptachlor Epoxide nd nd nd nd nd nd nd nd
Alpha- BHC nd nd nd nd nd nd nd nd
Beta-BHC nd nd nd nd nd nd nd nd
Delta-BHC nd nd nd nd nd nd nd nd
Gamma-BHC nd nd nd nd nd nd nd nd
Toxaphene nd nd nd nd nd nd nd nd
Total PCB (ppb dw) (c) nd nd nd nd nd nd nd nd
Total Butyltins (ppb dw) (d) nd nd nd nd nd 1.3 nd nd-1.3
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

Top of page

Jump to main content.