Boiler MACT
NCASI technical resources related to the Boiler MACT rulemakings are available here. Notable NCASI work related to this topic includes an assessment of the performance of PM CEMS on wood-fired boilers, summary of Detection and Quantitation limits for mercury (Hg) measurement, guidance on fuel sampling and analysis and summary contaminant comparisons for non-hazardous secondary materials (NHSM) receiving the categorical exemption. NCASI has also conducted multiple workshops and webinars on planning and executing performance tests, specifically on identifying worst-case representative operating scenarios for multi-fuel fired boilers.
Resources
Boiler MACT Resources – Carbon Monoxide Floor Determinations
Carbon Monoxide Floor Determinations During the setting of the MACT floor for carbon monoxide, Ncasi added to EPA's understanding in several areas where the procedures originally used were not scientifically valid. Alternative limits for boilers equipped with CO CEMS The initially proposed Boiler MACT car
Learn MoreBoiler MACT Resources – Detection Limits
Detection Limits NCASI voiced a number of industry concerns about detection limit and quantitation limit issues and EPA’s handling of data close to detection levels. Detection limit issues were key in setting mercury and dioxin Boiler MACT floors. Mercury NCASI work on mercury test & analytical meth
Learn MoreBoiler MACT Resources – CEMS for Combination Boiler Particulate Matter
CEMS for Combination Boiler Particulate Matter § 63.7525(b) requires solid and liquid fossil fuel boilers with heat inputs greater than 250 MMBtu per hour to install either a CPMS or CEMS in order to show ongoing compliance with PM emission limits. Other boilers may choose to install these systems in order to a
Learn MoreBoiler MACT Resources – Useful EPA Links
Useful EPA Links Small Entity Compliance Guide for Major Source Boilers and Process Heaters Boiler MACT: Questions and Answers (Updated 6/10/15) Energy assessment requirements
Learn MoreBoiler MACT Resources – Output Based Emission Limits
Output Based Emission Limits Output-based emission limits could be a viable compliance option for boilers that produce steam, electricity, or cogenerate steam with electricity. However, the prevalence of complex systems in our industry, where multiple boilers supply steam to common headers, that subsequently fee
Learn MoreBoiler MACT Resources – Clean Fuels for Startup
Clean Fuels for Startup Can dry biomass satisfy the “Clean-Fuel” requirement as proposed in the reconsideration rule? On January 21, 2015, EPA published a proposed rule announcing the reconsideration of specific issues related to the MACT standards for boilers and process heaters located at major sources.
Learn MoreBoiler MACT Resources – Fuel Sampling and Analysis
Fuel Sampling and Analysis Procedures Boiler MACT provides facilities the option of demonstrating compliance with HCl, TSM and mercury (Hg) limits using fuel analysis. NCASI has developed whitepapers on Fuel sampling procedures required by the rule, to be employed during initial performance tests Fuel
Learn MoreBoiler MACT Resources – Electronic Reporting Tool (ERT)
Electronic Reporting Tool All performance test results must be submitted to EPA’s Central Data Exchange (CDX) using the Electronic Reporting Tool (ERT). The Test Plan portion of the ERT must be filled out first. Only after that will the Test Data section become available. Filling out the test plan portion pr
Learn MoreBoiler MACT Resources – EPA Method 30B to Determine Mercury (Hg) Emissions
EPA Method 30B to Determine Mercury (Hg) Emissions Among the methods approved for mercury emissions performance testing in the Boiler MACT rule, only EPA Method 30B offers the combination of low detection limits, ease of implementation and low implementation costs. Given these benefits, there is an incentive in
Learn MoreBoiler MACT Resources – Initial Performance Tests
Initial Performance Tests NCASI has hosted several workshops on designing initial performance tests for multi-fuel boilers at various regional meetings. These workshops were held in the form of interactive panel discussions, with illustrative case studies also provided as discussion aids. Please contact Vipin
Learn MoreBoiler MACT Resources – Sulfur/HCl Interactions: Implications for Compliance Strategy
Sulfur/HCl Interactions This page is under construction.
Learn MoreBoiler MACT Resources – Non-Hazardous Secondary Material Self-Determination
Non-Hazardous Secondary Material Self-Determination Certain materials were granted categorical non-waste status (Scrap tires, resonated wood, coal refuse, and dewatered pulp and paper sludges that are combusted on-site) in the Federal Register on February 7, 2013 . Three additional categories were proposed (c
Learn MoreBoiler MACT Resources – Important Dates
This section provides a summary of key requirements, supporting documentation, and NCASI technical resources.
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