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Standard A legally enforceable measure of an unacceptable effect.

Suspended solids Organic or inorganic particles that are suspended in water.

The term includes sand, silt, and clay particles as well as other solids, such as

biological material, suspended in the water column.

Terrestrial habitat Habitat where the soil is typically unsaturated and aerobic.

Theoretical bioaccumulation potential (TBP) A screening tool to estimate

the uptake of nonpolar organics by animals.

Toxicity Level of mortality or other end point demonstrated by a group of

organisms that have been affected by the properties of a substance, such as

contaminated water, sediment, or dredged material.

Turbidity An optical measure of the amount of material suspended in the

water. Increasing the turbidity of the water decreases the amount of light that

penetrates the water column.

Upland habitat The geochemical environment in which dredged material

becomes unsaturated, dried, and oxidized, and supports terrestrial plants and

animals.

Volatiles Chemical substances which move from solid or liquid substrates into

the atmosphere.

Vadose Zone A subsurface zone that is unsaturated and aerobic, containing

capillary water and air or gases at atmospheric pressure.

Wetlands Areas that are inundated or saturated by surface or ground water at a

frequency and duration sufficient to support, and that, under normal

circumstances, do support a prevalence of vegetation typically adapted for life in

saturated-soil conditions. Wetlands generally include swamps, marshes, bogs,

and similar areas.

Appendix A Glossary