OAR 340-226-0130
Highest and Best Practicable Treatment and Control: Typically Achievable Control Technology (TACT)
(1)
Existing Sources. An existing emissions unit must meet TACT for existing sources if:(a)
The emissions unit is not already subject to emission standards for the regulated pollutant under OAR 340 divisions 224, 230, 340-232-0010 (Introduction) through 340-232-0240, OAR 340 divisions 234, 236, or 238, 340-240-0110 (Medford-Ashland Air Quality Maintenance Area and Grants Pass Urban Growth Area: Wood Waste Boilers) through 340-240-0180 (Medford-Ashland Air Quality Maintenance Area and Grants Pass Urban Growth Area: Control of Fugitive Emissions (Medford-Ashland AQMA Only)), 340-240-0310(1), 340-240-0320 (La Grande Urban Growth Area: Wood-Waste Boilers) through 340-240-0430 (Lakeview Urban Growth Area: Source Testing);(b)
The source is required to have a permit;(c)
The emissions unit has emissions of criteria pollutants equal to or greater than 5 tons per year of particulate or 10 tons per year of any gaseous pollutant; and(d)
DEQ determines that air pollution control devices and emission reduction processes in use for the emissions unit do not represent TACT, and that further emission control is necessary to address documented nuisance conditions, address an increase in emissions, ensure that the source is in compliance with other applicable requirements, or protect public health or welfare or the environment.(2)
New and Modified Sources. A new or modified emissions unit must meet TACT for new or modified sources if:(a)
The new or modified emissions unit is not subject to Major NSR in OAR 340 division 224, a Type A State NSR action under OAR 340 division 224, an applicable Standard of Performance for New Stationary Sources in OAR 340 division 238, 340-240-0110 (Medford-Ashland Air Quality Maintenance Area and Grants Pass Urban Growth Area: Wood Waste Boilers) through 340-240-0180 (Medford-Ashland Air Quality Maintenance Area and Grants Pass Urban Growth Area: Control of Fugitive Emissions (Medford-Ashland AQMA Only)), 340-240-0310(1), 340-240-320 through 340-240-0430 (Lakeview Urban Growth Area: Source Testing), or any other standard applicable only to new or modified sources in OAR 340 divisions 230, 234, 236, or 238 for the regulated pollutant emitted;(b)
The source is required to have a permit;(c)
The emissions unit:(A)
If new, would have emissions of any criteria pollutant equal to or greater than 1 ton per year in any area, or of PM10 equal to or greater than 500 pounds per year in a PM10 nonattainment area; or(B)
If modified, would have an increase in emissions from the permitted level for the emissions unit of any criteria pollutant equal to or greater than 1 ton per year in any area, or of PM10 equal to or greater than 500 pounds per year in a PM10 nonattainment area; and(d)
DEQ determines that the proposed air pollution control devices and emission reduction processes do not represent TACT.(3)
Before making a TACT determination, DEQ will notify the owner or operator of a source that it intends to make such a determination using information known to DEQ. The owner or operator of the source may supply DEQ with additional information by a reasonable date set by DEQ.(4)
The owner or operator of a source subject to TACT must submit, by a reasonable date established by DEQ, compliance plans and specifications for DEQ’s approval. The owner or operator of the source must demonstrate compliance in accordance with a method and compliance schedule approved by DEQ.
Source:
Rule 340-226-0130 — Highest and Best Practicable Treatment and Control: Typically Achievable Control Technology (TACT), https://secure.sos.state.or.us/oard/view.action?ruleNumber=340-226-0130
.