Best Demostrated Available Technology (BDAT)

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06/30/2005

quality environmental impact (including energy requirements), and such other factors as the

Environmental Protection Agency Administrator deems appropriate. [Derived from CWA

sects. 301(b) and 304(b)(2)(B)]

Under the Safe Drinking Water Act:

The best technology, treatment techniques, or other means that the Environmental Protection

Agency Administrator finds, after examination for efficacy under field conditions and not

solely under laboratory conditions, are available taking cost into consideration. For the

purposes of setting maximum contaminant levels (MCLs) for synthetic organic chemicals, any

BAT must be at least as effective as granular activated carbon. (See maximum contaminant

level.) [40 CFR 141.2, EPA Glossary, WQA Glossary]

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BEST DEMONSTRATED AVAILABLE TECHNOLOGY (BDAT). The most effective

commercially available means of treating specific types of hazardous waste, as designated by

the Environmental Protection Agency in 40 CFR Part 268. BDATs may change with advances

in treatment technologies. [Derived from EPA Terms]

BEST MANAGEMENT PRACTICES (BMP). Structural, nonstructural, and managerial

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techniques, other than effluent limitations, to prevent or reduce pollution of surface water.

They are the most effective and practical means to control pollutants that are compatible with

the productive use of the resource to which they are applied. BMPs are used in both urban and

agricultural areas. BMPs can include schedules of activities; prohibitions of practices;

maintenance procedures; treatment requirements; operating procedures; and practices to

control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw

material storage. [Derived from EPA Glossary, 40 CFR 122.2, 40 CFR 232.2]

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BETA RADIATION. Ionizing radiation consisting of fast moving, positively or negatively

charged elementary particles emitted from atomic nuclei during radioactive decay. Beta

radiation is more penetrating, but less ionizing than alpha radiation. Negatively charged beta

particles are identical to electrons; positively charged beta particles are known as positrons.

Both are stopped by clothing or a thin sheet of metal. [Derived from EPA RPD]

BOUND. To use simplifying assumptions and analytical methods in an analysis of impacts or

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risks such that the result overestimates or describes an upper limit on (i.e., Abounds@)

potential impacts or risks.

Related terms:

A bounding analysis is an analysis designed to overestimate or determine an upper limit to

potential impacts or risks.

A bounding accident is a hypothetical accident, the calculated consequences of which equal or

exceed the consequences of all other potential accidents for a particular activity or facility.

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