Best available technology economically achievable

Limitations based upon application of the best practicable control technology currently available (BPT) apply to existing point-sources and should have been achieved by July 1, 1977. Limitations based upon application of the BATEA (Best Available Technology Economically Achievable) that will result in reasonable further progress toward elimination of discharges had to be achieved by July 1, 1984. 

BAT means the best available technology economically achievable under the U.S. Federal Act Section 304(b)(2)(B). 

Best available technology economically achievable (BAT) guidelines for the control of nonconventional and toxic pollutants (trichlorophenol and pentachlorophenol, which are chemicals used as biocides)... 

BAT, best available technology economically achievable TCDD, 2,3,7,8-tetrachlorodibenzo-p-dioxin TCDF, 2,3,7,8-tetrachlorodibenzofuran. 

Effluent reduction using best available technology economically achievable (BAT) 1-day maximum 30-day average 0.10 kg/kkg 0.021 kg/kkg ... 

ACGIH = American Conference of Governmental Industrial Hygienists AW = Aquatic and Wildlife BAT = Best Available Technology Economically Achievable CELDs = Computer-aided Environmental Legislative Database CFR = Code of Federal Regulations ... 

The EPA has established four different control technologies for the petroleum refining industry best practicable control technology (BPT), best available technology economically achievable (BAT), best conventional pollutant control technology (BCT), and new source performance standards (NSPS). Table 13 shows the BPT and NSPS standards that must be met by the various subcategories (40 CFR Part 419). The limitations for BPT actually incorporate those of both BAT and BCT for this industry. 

Note pH (within the range of 6.0 to 9.0) BPT incorporates BAT and BCT BPT, best practicable control technology NS, new source performance standards BOD, biochemical oxygen demand TSS, total suspended solids COD, chemical oxygen demand O G, oil and grease BAT, best available technology economically achievable BCT, best conventional pollutant control technology. 

NSPS new source performance standards BPT best practicable control technology currently available BAT best available technology economically achievable BCT best conventional pollutant control technology. Effluent Limitations are not contained in this table. 

As with the CAA, the CWA establishes performance standards (the maximum effluent concentrations allowable) and control technology guidelines applicable to various industries and sectors. These guidelines reflect data compiled from numerous industry sources, and define expected discharge levels as a function of best available technology economically achievable (BAT or BATEA). More information on effluent streams is at http //www.epa.gov/waterscience/guide/. 

In the settlement of a law suit brought against the Environmental Protection Agency, EFA, by several environmental groups, the EFA agreed in 1976 to review the effluent limitations and guidelines of 65 toxic chemicals based on the best available technology economically achievable (1-2). As a result of the Clean Water Act, CWA, in 1977, the EFA expanded this list to 129. This is commonly known as the Priority Pollutant List. The Clean Water Act requires that effluent standards be established for each toxic pollutant. 

CWA to establish the minimum level of control to be required by a permit. They are the Best Practicable Control Technology (BPT), Best Available Technology Economically Achievable (BAT), Best Conventional Pollutant Control Technology (BCT), Best Available Demonstrated Technology (BDT), and Best Management Practices (BMPs). Industries that do not discharge directly into surface waters but into publicly operated treatment works (POTWs) are subject to pretreatment standards under Section 307(b) of the CWA. 19.3.1.3 Permit Program... 

Best Available Technology Economically Achievable—Terminology for sewage cleanup technology to be applied under Canadian Municipal-Industrial Strategy for Abatement, for cleanup of Great Lakes water sources. 

Best available technology economically achievable for toxic and nonconventional pollutants and... 

All pollutants are classified as either conventional, toxic, or nonconventional. Conventional pollutants include BOD5,TSS (total suspended sohds), and pH.There are 129 priority pollutants that appear on the toxics hst in the Federal Register 43(164)4108 (February 1978). Nonconventional poUutants are those that are neither toxic nor conventional, such as nitrogen, oil, and grease. Best conventional pollutant control technology was required for conventional pollutants by July 1,1984. Best available technology economically achievable was also required for toxic and nonconventional pollutants by the same date. 

The Clean Water Act of 1972 (United States) demands the use of the best available technology economically achievable. Since 1982 each plant has been limited to a maximum of 0.1 g of Hg per tonne of chlorine averaged over 30 d measured at the outlet of the wastewater treatment plant. 

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