Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
Dredging and Sediment Management
SF-DODS Quick Finder | ||
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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 |
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:
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