Wes Thornhill, Chief Industrial Chemicals Section Air Division Boiler MACT CISWI Rule Wes Thornhill, Chief Industrial Chemicals Section Air Division adem.alabama.gov

Boiler/CISWI MACT On June 4, 2010, four interconnected proposed rules were published in the FR Major Source Boiler MACT Area Source Boiler MACT CISWI Section 129 Rule Definition of solid waste adem.alabama.gov

Boiler/CISWI MACT Comment Period ends August 23rd. Court ordered promulgation date of December 16, 2010. adem.alabama.gov

Boiler/CISWI MACT What’s covered? Major Source Boiler MACT Boilers at sources that have the potential to emit more than 10/25 of HAPs Area Source Boiler MACT Boilers at sources that are not Major HAP Sources CISWI Rule A unit that burns ANY solid waste. RCRA solid waste definition adem.alabama.gov

Boiler MACT Boiler MACT (major source) For units greater than 10mmBTU/hr, limits on the following PM (surrogate for non-Hg metals) Mercury HCL (surrogate for acid gases) CO (surrogate for non-dioxin organic HAPs) Dioxin/Furan adem.alabama.gov

Boiler MACT Boiler MACT (major source) Anticipated control device train Carbon Injection  Baghouse  Scrubber And good combustion practices adem.alabama.gov

Boiler MACT Boiler MACT (major source) For ‘Gas 1’, Metal Process Furnaces and units less than 10 mmbtu/hr, a work practice standard (annual tune up). adem.alabama.gov

Boiler MACT Boiler MACT (major source) ‘Beyond the floor’ All major source facilities are to conduct an “Energy Assessment” Energy Star adem.alabama.gov

Boiler MACT Boiler MACT (major source) Testing (varies based on size and fuel) Initial – PM, Hg, HCl, THC, Dioxin Monitoring > 100 mmbtu/hr = CO CEMs > 250 mmbtu/hr = PM CEMs (non-gas units) Parametric monitoring (opacity, Delta P, etc…) Compliance 30 Day average for CEMs, shorter terms for parametric adem.alabama.gov

Boiler MACT Boiler MACT (major source) Impact EPA national estimates Initial Cost = $9.5 Billion Annualized cost = $2.9 Billion Industry national estimates (AF&PA) Initial Cost = $21 Billion EPA benefits estimates $17-$41 Billion in health benefits adem.alabama.gov

Boiler MACT Boiler MACT (area source) Limits Beyond the floor Coal fired units Mercury CO as a surrogate for POM PM (new units) Biomass and Oil fired units Beyond the floor Energy assessment adem.alabama.gov

Boiler MACT Boiler MACT (area source) <10 mmbtu/hr Annual tune up adem.alabama.gov

Boiler MACT Boiler MACT (area source) Testing (varies based on size and fuel) Initial – PM, Hg, CO Monitoring > 100 mmbtu/hr = CO CEMs Parametric monitoring (opacity, Delta P, etc…) Compliance Parametric adem.alabama.gov

CISWI Rule Commercial and Industrial Solid Waste (CISWI) Rule Limits Burns ANY solid waste Limits Cd, CO, HCl, Hg, Pb, PM, SO2, NOx, dioxins/furans adem.alabama.gov

CISWI Rule CISWI Rule Anticipated control device train Carbon injection  Baghouse  Scrubber  SNCR  Afterburner And good combustion practices adem.alabama.gov

CISWI Rule CISWI Rule Testing Monitoring Initial and annual stack tests Reduced testing frequency for good performance Monitoring CO CEMs CO and PM CEMs for units >250 mmbtu/hr Hg CEMs (kilns) COMs (w/out scrubber) adem.alabama.gov

CISWI Rule CISWI Rule Compliance Hg monthly averages Daily averages for other CEMs 3-hour rolling averages for parametric 6-minute for COMs Annual control device inspections Operator certification adem.alabama.gov

Waste Solid Waste Definition The following are NOT solid wastes Material used as fuel that remains within control of generator Material used as an ingredient in a manufacturing process Material that has been SUFFICIENTLY processed to produce a fuel Material that has been confirmed through a case-by-case basis adem.alabama.gov

Waste Solid Waste Definition Wastes Non-wastes Treated wood, construction debris, off-spec used oil, tires Non-wastes Resinated wood, WWTP sludge, TDF (chipped tires with steel removed), on-spec used oil adem.alabama.gov

Boiler/CISWI MACT Concerns Achievability, especially for smaller and area sources FrankenMACT approach adem.alabama.gov

Boiler/CISWI MACT Concerns “Furthermore, we already estimate no new CISWI sources will be constructed due to the costs associated with the MACT floor limits in the proposed NSPS.” EPA FR Vol. 75, No. 107, pg 31959 adem.alabama.gov

Boiler/CISWI MACT Concerns Driving facilities away from wood and wood waste units, and towards natural gas Wood is renewable Wood is available Wood may be considered carbon neutral Woodwaste is not a consumer level fuel Woodwaste may, otherwise, end up in landfills adem.alabama.gov

Boiler/CISWI MACT Concerns Accuracy of PM CEMs Some limits approach the edges of detectability (1 ppm CO limit on liquid fueled boilers) adem.alabama.gov

Boiler/CISWI MACT Reminder! Comment Period ends August 23rd. Court ordered promulgation date of December 16, 2010. adem.alabama.gov

Boiler/CISWI MACT Questions??? adem.alabama.gov