| JUNE 2008
Standards for hazardous waste combustion revised
The United States Environmental Protection Agency issued
the National Emission Standards for Hazardous Air Pollutants for new
and existing hazardous waste combustors on October 12, 2005. The April
8, 2008 amendments to this rule revise or clarify several compliance
and monitoring provisions in the October 12, 2005 rule. In addition,
these amendments correct several omissions and typographical errors.
These changes are as follows:
- Finalizes a sunset provision for the interim standards for incinerators,
cement kilns, and lightweight aggregate kilns;
- Clarifies the applicability of the particulate matter detection
system requirements for sources equipped with fabric filters;
- Clarifies that periodic confirmatory performance testing for dioxin/furans
is not required for sources that are not subject to a numerical dioxin/furan
emission standard;
- Clarifies the periodic performance testing requirements for sources
operating under the interim standards;
- Finalizes a performance test waiver provision for sources subject
to hazardous waste thermal concentration limits if the source feeds
low levels of metals or chlorine in the hazardous waste;
- Clarifies the procedures to calculate rolling averages for the
metals and chlorine standards;
- Revises when a source must submit subsequent periodic reviews of
its eligibility for the health-based compliance alternative for total
chlorine;
- Clarifies the mercury standard for new and existing cement kilns;
- Clarifies whether interim status sources need to obtain approval
before proceeding with facility modifications required to meet the
MACT emission standards;
- Clarifies the applicability of Title V permit requirements for
area sources for boilers and HCl production furnaces;
- Revises the startup, shutdown, and malfunction plan provision.
The revised provisions are effective immediately and the final rule doesn’t
change the October 14, 2008 compliance date set by the October 2005 final
rule.
The EPA believes that these amendments will reduce compliance uncertainties
and improve understanding of the final rule requirements.
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