Ecological evaluation of proposed discharge of dredged material from Oakland Harbor into ocean waters (Phase 2 of -42-foot project)
- Battelle Marine Research Lab., Sequim, WA (USA)
The US Army Corps of Engineers (USACE), San Francisco District, was authorized by the Water Resources Development Act of 1986 to deepen and widen the navigation channels of Inner and Outer Oakland Harbor, California, to accommodate modern deep-draft vessels. The recommended plan consists of deepening the harbor channels from the presently authorized water depth of {minus}35 ft mean lower low water (MLLW) to {minus}42 ft MLLW and supplying the harbor with adequate turning basins and berthing areas. Offshore ocean disposal of the dredged sediment is being considered, provided there is no evident of harmful ecological effects. It harmful ecological effects are not evident then the appropriate certifications from state environmental quality agencies and concurrence from the Environmental Protection Agency can be obtained to allow disposal of sediment. To help provide the scientific basis for determining whether Oakland Harbor sediments are suitable for offshore disposal, the Battelle/Marine Sciences Laboratory (MSL) collected sediment cores from 23 stations in Inner and Outer Oakland Harbor, evaluated these sediment cores geologically, performed chemical analyses for selected contaminants in sediments, conducted a series of solid phase toxicity tests with four sensitive marine invertebrates and assessed the bioaccumulation potential of sediment-associated contaminants in the tissues of Macoma Nasuta. 43 refs., 26 figs., 61 tabs.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOD; USDOE; Department of Defense, Washington, DC (USA); USDOE, Washington, DC (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5764018
- Report Number(s):
- PNL-7483; ON: DE91011771
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBON
BIOLOGICAL ACCUMULATION
DREDGE SPOIL
WASTE DISPOSAL
DREDGING
ENVIRONMENTAL IMPACTS
METALS
PETROLEUM
AQUATIC ECOSYSTEMS
ATLANTIC OCEAN
BENTHOS
SEAWATER
SEDIMENTS
TOXIC MATERIALS
TOXICITY
AQUATIC ORGANISMS
ECOSYSTEMS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
MANAGEMENT
MATERIALS
NONMETALS
OXYGEN COMPOUNDS
SEAS
SURFACE WATERS
WASTE MANAGEMENT
WATER
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
540350 - Environment
Aquatic- Site Resource & Use Studies- (1990-)