Tuesday, March 8, 2011

MACT Review For Mineral Wool and Wool Fiberglass Production

US EPA has entered into the pre-proposal phase in its technology review and residual risk review for the Mineral Wool and Wool Fiberglass Production air emission requirements. The MACT standard for Mineral Wool Production was promulgated on June 1, 1999, and the MACT for Wool Fiberglass Production was promulgated on June 14, 1999. The Clean Air Act requires EPA to evaluate the risk remaining to human health within 8 years of promulgation of each MACT standard; for these regulations that date expired in June 2007.

Along with risk, the EPA is also required to review new technology in the industry that can reduce hazardous air pollutant (HAP) emissions from regulated sources, and may consider costs under this technology review. EPA is addressing both Clean Air Act requirements under a combined risk and technology review (RTR). EPA was petitioned to review the risk for these source categories, and also to determine MACT floors for pollutants and processes that were not regulated by the MACT standards. The anticipated publication dates for proposal and promulgation of these RTRs are October 31, 2011 and October 31, 2012, respectively.

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