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Technology Transfer Network - OAR Policy and Guidance

FACT SHEET

PROPOSED AMENDMENTS TO NEW SOURCE PERFORMANCE STANDARDS AND EMISSION GUIDELINES FOR LARGE MUNICIPAL WASTE COMBUSTORS (MWCs)

FACT SHEET

ACTION
BACKGROUND
MORE INFORMATION
and HOW TO COMMENT
ACTION
  • On December 7, 2005, EPA proposed amendments to the emission limits in the New Source Performance Standards (NSPS) and Emissions Guidelines (EG) for large municipal waste combustors (MWCs, incinerators).
  • Large MWC units are those that burn more than 250 tons of municipal solid waste per day (about 25 garbage truckloads).
  • The proposed emission limits would codify the performance levels being achieved by MWCs and assure high performance levels are maintained.
  • EPA is also proposing several changes to the rules to simplify implementation.
  • EPA will accept comment on these proposed amendments for 45 days after publication in the Federal Register.

BENEFITS
  • This amendment will not impact large MWC operations or emissions. High efficiency emission controls are already in place and are operating.
  • This amendment will not impose additional costs on MWCs.

BACKGROUND
  • Section 129 of the Clean Air Act required EPA to develop and adopt NSPS and EG for MWCs that would be based on application of maximum achievable control technology (MACT). These regulations were adopted by EPA in 1995 and were fully implemented by 2000.
  • The regulations were highly effective in reducing emissions from MWCs. Relative to a 1990 baseline, the MACT regulations reduced organic emissions (dioxin/furans) by more than 99 percent, metal emissions (cadmium, lead, and mercury) by more than 93 percent, and acid gas emissions (hydrogen chloride and sulfur dioxide) by more than 91 percent.
  • The Clean Air Act requires EPA to conduct a 5-yr review of the MWC rules and, if appropriate, revise them. This action proposes those revisions.
FOR MORE INFORMATION

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