- Whole Effluent Toxicity Testing
- Toxicity Identification Evaluation/Toxicity Reduction Evaluation
- Sediment and Soil Toxicity Testing
- Water Effect Ratio Studies
- Product Testing
- Additional Toxicity Testing
For further information, please contact:
For additional information on EA’s dredged material projects and capabilities, please contact:
EA is a national leader in dredged material toxicity testing and provides the benefit of a proven track record with five USACE districts.
Dredged Material Testing
EA is a recognized national leader in providing dredged material toxicity testing services
to federal, state, and commercial clients, as well as local/regional port authorities throughout
the United States. For decades, we have provided scientific data and environmental documentation
to support project-specific and long-range planning initiatives.
For ocean placement, EA’s Ecotoxicology Laboratory conducts water column bioassays, whole
sediment bioassays, and aquatic bioaccumulation studies.
For upland disposal projects, EA’s Ecotoxicology Laboratory conducts plant bioaccumulation studies
to assess uptake of contaminants from dredged material into wetland and upland plant tissues. The
plant issue data are utilized in ecological risk assessments to assess potential effects to upland
EA has conducted dredged material toxicity testing for the U.S. Army Corps of Engineers (USACE)
Baltimore, Mobile, New York, Norfolk, and Savannah districts, as well as the Naval Facilities
Engineering Command. EA is also an approved laboratory for Dredged Material Toxicity Testing
for USACE–New England District.
Routine dredged material toxicity tests performed at EA include:
- Macoma nasuta (Bioaccumulation)
- Nereis virens (Bioaccumulation)
- Lumbriculus variegatus (Bioaccumulation)
- Hyalella azteca (Whole Sediment Survival, Growth, and Fecundity)
- Chironomus dilutus (Whole Sediment Survival and Growth)
- Lumbriculus variegatus (Whole Sediment Survival)
- Leptocheirus plumulosus (Whole Sediment Survival, Growth, and Fecundity)
- Ampelisca abdita (Whole Sediment Survival)
- Neanthes arenaceodentata (Whole Survival and Growth)
- Americamysis bahia (Whole Sediment Survival and Growth)
- Repoxynius abronius (Whole Sediment Survival)
- Eohaustorius estuarius (Whole Sediment Survival)
- Americamysis bahia (Elutriate Survival)
- Menidia beryllina (Elutriate Survival)
- Mytilus sp. (Larval Development)
- Strongylocentrotus sp. (Larval Development).