Ecological evaluation of proposed discharge of dredged material from Oakland Harbor into ocean waters (Phase 3 A of -42-foot project)
- Battelle/Marine Sciences Lab., Sequim, WA (United States)
The Battelle/Marine Sciences Laboratory (MSL) conducted a study to detemine whether dredged sediments from Oakland Inner and Outer Harbors were, suitable for ocean disposal. Nineteen test treatments, six reference treatments, and control treatments were tested for physical/chemical parameters, water column effects, dredged sediment-toxicity, and bioaccumulation potential. Physical/chemical parameters were analyzed at each site and each composite sediment to a depth of -44 ft MLLW. These parameters included analysis for geological characteristics, conventional sediment measurements (grain size, total volatile solids, total organic carbon, oil and grease, and total petroleum hydrocarbons), metals, polynuclear aromatic hydrocarbons (PAHs), pesticides, butyltins, and polychlorinated biphenyls (PCBs). Physical/chemical data were used in support of the toxicological and bioaccumulation testing, but were not used in the decision-making criteria described iti the Draft Implementation Manual under Tier III testing. To evaluate water column effects, MSL conducted suspended-particulate-phase (SPP) tests using the mysid shrimp Holmesimysis sculpta, speckled sanddab Citharichtys stigmaeus, and larvae of the pacific oyster Crassostrea gigas- Both a 48-h and a 96-h test were performed. The MSL evaluated dredgedsediment toxicity by conducting a total of eight solid-phase toxicity tests using the following organisms: the bivalve clam Macoma nasuta, the polychaste worm Nepthys caecoides, the speckled sanddab C. stigmaeus, and the arnphipod Rhepoxynius abronius. Test duration ranged From 10 to 28 days. Bioaccumulation potential was evaluated in the 28-day M. nasuta and N. caecoides solid-phase exposures by measuring the Contaminants of concern present in their tissues after exposure to test, reference, and control sediments.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOD; Department of Defense, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6913045
- Report Number(s):
- PNL-8302-Vol.1; ON: DE92041335
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
HARBORS
DREDGING
SEDIMENTS
CHEMICAL COMPOSITION
TOXICITY
TOXIC MATERIALS
BIOLOGICAL ACCUMULATION
ENVIRONMENTAL IMPACTS
ARSENIC
CLAMS
LARVAE
METALS
OYSTERS
POLYCHLORINATED BIPHENYLS
POLYCYCLIC AROMATIC HYDROCARBONS
SAMPLING
SEAS
SHRIMP
ANIMALS
AQUATIC ORGANISMS
AROMATICS
ARTHROPODS
CHLORINATED AROMATIC HYDROCARBONS
CRUSTACEANS
DECAPODS
ELEMENTS
HALOGENATED AROMATIC HYDROCARBONS
HAZARDOUS MATERIALS
HYDROCARBONS
INVERTEBRATES
MATERIALS
MOLLUSCS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
SEMIMETALS
SURFACE WATERS
560300* - Chemicals Metabolism & Toxicology
540310 - Environment
Aquatic- Basic Studies- (1990-)
540350 - Environment
Aquatic- Site Resource & Use Studies- (1990-)