SAN LUIS OBISPO COUNTY AIR POLLUTION CONTROL DISTRICT
RULE 218 - FEDERAL REQUIREMENTS FOR HAZARDOUS AIR POLLUTANTS
The requirements of this Rule apply to any owner or operator who constructs or reconstructs a major source of hazardous
air pollutants (HAP) after the effective date of this Rule unless the major source is regulated or exempted from
regulation under a standard issued pursuant to Section 112(d), Section 112(h), or Section 112(j) of the Federal
Clean Air Act (CAA) and incorporated in chapter 40 of the Code of Federal Regulations part 63 (40CFR63), or the
owner or operator of such major source has received an Authority to Construct for such construction or reconstruction
project before the effective date of this Rule. Compliance with this Rule does not relieve any owner or operator
of a major stationary source of HAP from complying with all other District rules and regulations including District
Rule 219, Toxics New Source Review, any applicable state airborne toxic control measure (ATCM), or other applicable
state or federal laws.
The following definitions shall be used for the purpose of this Rule and supersede any other definition.
- "Affected states": Any state
- For which air quality may be affected by the major source for which a T-BACT determination is made in accordance
with this Rule and that is contiguous to the state of California; or
- Air quality may be affected and that is within 50 miles of the major source for which a T-BACT determination
is made in accordance with this Rule.
- Includes Indian nations that have applied for state status.
- "Available Information": For purposes of identifying control technology options for the applicable
source, information contained in the following information sources as of the date of issuance of the Authority
to Construct containing the T-BACT determination:
- A relevant proposed regulation, including all supporting information;
- Background information documents for a draft or proposed regulation;
- Data and information available from the Control Technology Center developed pursuant to Section 113 of the
Federal Clean Air Act;
- Data and information contained in the Aerometric Informational Retrieval System including information in the
MACT data base or any T-BACT data base;
- Any additional information that can be expeditiously provided by the EPA; and
- For the purpose of determinations by the District, any additional information provided by the applicant or
others, and any additional information considered available by the District.
- "Construct A Major Source":
- To fabricate, erect, or install at any greenfield site a stationary source or group of stationary sources which
is located within a contiguous area and under common control and which emits or has the potential to emit 10 tons
or more per year of any HAP or 25 tons per year or more of any combination of HAP, or
- To fabricate, erect, or install at any developed site a new process or production unit which in and of itself
emits or has the potential to emit 10 tons per year of any HAP or 25 tons per year of any combination of HAP unless
the process or production unit satisfies criteria 1 through 6 below:
- All HAP emitted by the process or production unit that would otherwise be controlled under the requirements
of this Rule will be controlled by emission control equipment which was previously installed at the same site as
the process or production unit.
- The District has determined:
- That within a period of 5 years prior to the fabrication, erection, or installation of the process or production
unit, the existing emission control equipment represented best available control technology (BACT), lowest achievable
emission rate (LAER) under 40CFR51 or 52, or a MACT standard for the category of pollutants that includes those
HAP to be emitted by the process or production unit; or
- That the control of HAP provided by the existing equipment will be equivalent to that level of control currently
achieved by other well-controlled similar sources. This means that the level of control must be equivalent to an
existing BACT, LAER, or MACT determination
- The District determines that the percent control efficiency for emissions of HAP from all sources to be controlled
by the existing control equipment will be equivalent to the percent control efficiency provided by the control
equipment prior to the inclusion of the new process or production unit.
- The District has provided notice and an opportunity for public comment concerning both its determination that
criteria in Subsections B.3.b.1, B.3.b.2, and B.3.b.3 apply and the continued adequacy of any prior LAER, BACT,
or MACT determination.
- If any commenter has asserted that a prior LAER, BACT, or MACT determination is no longer adequate, the District
has determined that the level of control required by that prior determination remains adequate.
- Any emission limitations, work practice requirements, or other terms and conditions upon which the above determinations
by the District are predicated will be construed by the District as applicable requirements under Section 504(a)
and either have been incorporated into any existing Part 70 permit for the affected facility or will be incorporated
into such permit upon issuance.
- "Control Technology": Measures, processes, methods, systems, or techniques to limit the emission
of hazardous air pollutants including, but not limited to, measures that:
- Reduce the quantity of, or eliminate emissions of, such pollutants through process changes, substitution of
materials or other modifications;
- Enclose systems or processes to eliminate emissions;
- Collect, capture or treat such pollutants when released from a process, stack, storage or fugitive emissions
- Are design, equipment, work practice, or operational standards (including requirements for operator training
or certification) as provided in 42 U.S.C. 7412(h), or
- Are a combination of Subsections B.4.a through B.4.d.
- "Electric Utility Steam Generating Unit": Any fossil fuel fired combustion unit of more than 25 megawatts
that serves a generator that produces electricity for sale. A unit that cogenerates steam and electricity and supplies
more than one-third of its potential electric output capacity and more than 25 megawatts electric output to any
utility power distribution system for sale shall be considered an electric utility steam generating unit.
- "Greenfield Site": A contiguous area under common control that is an undeveloped site or a developed
site for which the total emissions of HAP from stationary sources do not exceed the major source threshold.
- "Hazardous Air Pollutant (HAP)": One of over one hundred eighty chemicals or compounds listed by
the EPA pursuant to section 112(b) of the Federal Clean Air Act of 1990.
- "List of Source Categories": The Source Category List required by Section 112(c) of the Federal Clean
- "Major Source": A process or production unit that emits ten tons or more per year of any single HAP
or twenty-five tons or more per year of any combination of HAP.
- "Maximum Achievable Control Technology (MACT) Emission Rate": The hazardous pollutant emission rate
which is no less stringent than the emission rate achieved in practice by the best controlled similar source, and
which reflects the maximum degree of reduction in emissions that the District determines is achievable by the applicable
source. Such determinations shall consider the cost of achieving the emission reduction, any non-air quality health
and environmental impacts, and energy requirements.
- "Process or Production Unit": Any collection of structures and/or equipment that processes, assembles,
applies, or otherwise uses material inputs to produce or store an intermediate or final product. A single facility
may contain more than one process or production unit.
- "Potential to Emit": The maximum quantity of a hazardous air pollutant, including fugitive emissions,
that a project or permit unit is capable of emitting considering emission control equipment. The potential to emit
is calculated based on the maximum design capacity or other operating conditions which predict the maximum potential
emissions. If specific limiting conditions contained in the authority to construct or permit to operate restrict
or will restrict emissions to a lower level, these limitations shall be used to calculate the potential to emit.
- "Reconstruct A Major Source": The replacement of components at an existing process or production
unit that in and of itself emits or has the potential to emit 10 tons per year of any HAP or 25 tons per year of
any combination of HAP, whenever:
- The fixed capital cost of the new components exceeds 50 percent of the fixed capital cost that would be required
to construct a comparable process or production unit; and
- It is technically and economically feasible for the reconstructed major source to meet the applicable T-BACT
emission limitation for new sources established under this Rule.
- "Research and Development Activities": Activities conducted at a research or laboratory facility
whose primary purpose is to conduct research and development into new processes and products, where such source
is operated under the close supervision of technically trained personnel and is not engaged in the manufacture
of products for sale or exchange for commercial profit, except in a de minimis manner.
- "Similar Source": A stationary source or process that has comparable emissions and is structurally
similar in design and capacity to a constructed or reconstructed major source such that the source could be controlled
using the same control technology.
- "Toxics Best Available Control Technology (T-BACT)": The most stringent emissions limitation or control
technique without considering cost effectiveness which:
- has been achieved in practice for the type of source, category of source, or modification proposed; or
- is any other emissions limitation or control technique, including process and equipment changes of basic and
control equipment and implementation of pollution prevention measures, found by the APCO to be technologically
feasible for such source, category, or modification, and which limits air emissions of toxic substances to the
maximum extent feasible.
The provisions of this Rule shall not apply to:
- Electric utility steam generating units unless and until such time as these units are added to the source category
list pursuant to Section 112(c)(5) of the Federal Clean Air Act.
- Stationary sources that are within a source category that has been deleted from the source category list pursuant
to Section 112(c)(9) of the Federal Clean Air Act;
- Research and development activities, as defined in Section B.14 of this Rule.
- All owners and operators of stationary sources subject to this Rule shall install T-BACT, unless specifically
exempted by this Rule or unless subject to a source specific federal MACT standard. All T-BACT determinations shall
include controls to a level that the APCO has determined to be, at a minimum, no less stringent than MACT NSR,
as required by section 112(g)(2)(B) of the CAA.
- No person may begin actual construction or reconstruction of a major source of HAP unless:
- The major source is regulated or exempted from regulation under a standard issued pursuant to Section 112(d),
Section 112(h) or Section 112(j) in 40CFR63, and the owner and operator has fully complied with all procedures
and requirements for preconstruction review established by that standard, including any applicable requirements
set forth in 40CFR63, Subpart A; or
- The District has made a final and legally effective case-by-case T-BACT determination pursuant to the provisions
of Subsections D.3 and D.4 such that, based upon available information, emissions from the applicable source will
be controlled to a level no less stringent than the maximum achievable control technology emission rate.
- The following shall apply to the preparation of an Authority to Construct application or other application
for an applicable source requiring a T-BACT determination, and all subsequent review of the application and all
actions concerning the application taken by the District.
- The T-BACT emission rate or T-BACT requirements recommended by the applicant and approved by the District shall
not be less stringent than the emission control which is achieved in practice by the best controlled similar source,
as determined by the District.
- The applicant may recommend a specific design, equipment, work practice, or operational standard, or a combination
thereof, and the District may approve such a standard if the District specifically determines that it is not feasible
to prescribe or enforce an emission limitation under the criteria set forth in Section 112(h)(2) of the Federal
Clean Air Act.
- If the EPA has either proposed a relevant emission standard pursuant to Section 112(d) or Section 112(h) of
the Federal Clean Air Act or adopted a presumptive MACT determination for the source category which includes the
applicable source, then the T-BACT requirements applied to the applicable source shall have considered those MACT
emission limitations and requirements of the proposed standard or presumptive MACT determination.
- Application Contents for T-BACT Determinations: An application for an Authority to Construct that includes
a T-BACT determination shall specify a control technology selected by the owner or operator that, if properly operated
and maintained, will meet the T-BACT emission rate or standard as determined according to the principles set forth
in Subsection D.3 of this Rule.
- In each instance where an applicable source would require additional control technology or a change in control
technology, the application for a T-BACT determination shall contain the following information on the applicable
- The name and address (physical location);
- A brief description and identification of any listed source category or categories in which it is included;
- The construction or reconstruction schedule, including commencement date, completion date, and start-up date;
- The HAP emitted and the estimated emission rate for each such HAP;
- Any federally enforceable emission limitations applicable;
- The maximum and expected utilization of capacity and the associated uncontrolled emission rates;
- The controlled emissions in tons per year at expected and maximum utilization of capacity;
- A recommended emission rate consistent with the principles set forth in Subsection D.3;
- The control technology selected to meet the recommended T-BACT emission rate, including technical information
on the design, operation, size, estimated control efficiency of the control technology. The District may also require
the manufacturer's name, address, telephone number, and relevant specifications and drawings;
- Supporting documentation, including identification of alternative control technologies considered by the applicant
to meet the proposed emission rate, and analysis of cost, non-air quality health environmental impacts, and energy
requirements for the selected control technology; and
- Any other relevant information required pursuant to 40CFR63, Subpart A.
- In each instance where the owner or operator contends that an applicable source will be in compliance, upon
startup, with the T-BACT determination without a change in control technology, the application for a T-BACT determination
shall contain the following information:
1) The information described in Subsection D.4.a; and
2) Documentation of the control technology in place.
- The final and legally effective T-BACT determination shall take effect on the date of issuance of the Authority
to Construct for the applicable source.
- T-BACT determination requirements must be incorporated into Title V permits following the issuance of the Authority
to Construct. If the initial Title V permit has not been issued, the owner or operator is required to submit a
Title V application or application amendment. If the Title V permit has been issued, the owner or operator is required
to submit an application for a significant Title V permit modification.
E. NOTICE AND OPPORTUNITY FOR PUBLIC COMMENT
- The District shall provide opportunity for public comment on the T-BACT determination in the Authority to Construct,
- Availability at the District office of the information submitted by the owner or operator and the District's
preliminary decision to approve the application,
- A 30 day period for submittal of public comment, and
- A notice by prominent advertisement in at least one newspaper of general circulation in San Luis Obispo County.
- If no adverse comments are received, the Authority to Construct will be issued at the end of the comment period.
If adverse comments are received, the District shall have 30 days after the end of the comment period to make any
necessary revisions in its analysis and decide whether to finally approve the application.
- EPA Notification. The District shall send a copy of the final Authority to Construct incorporating a T-BACT
determination to the EPA, and the all other State and local air pollution control agencies having jurisdiction
in affected states. The District shall also send an electronic copy of the Authority to Construct in an acceptable
electronic format to the EPA for inclusion in the MACT database.
F. REQUIREMENTS FOR AN APPLICABLE SOURCE SUBJECT TO A SUBSEQUENTLY PROMULGATED MACT STANDARD OR MACT REQUIREMENTS
- If the EPA promulgates an emission standard under Section 112(d) or Section 112(h) of the Federal Clean Air
Act or the District issues a determination under Section 112(j) of the Federal Clean Air Act that is applicable
to a stationary source or group of sources before the date that the owner or operator has obtained a final and
legally effective T-BACT determination pursuant to this Rule, the owner or operator of the source(s) shall comply
with the promulgated standard or determination rather than any T-BACT determination, and the owner or operator
shall comply with the promulgated standard by the compliance date in the promulgated standard.
- If the EPA promulgates a federal emission standard under Section 112(d) or Section 112(h) of the Federal Clean
Air Act or the District makes a determination under Section 112(j) of the Federal Clean Air Act that is applicable
to a stationary source or group of sources that have been the subject of a prior T-BACT determination pursuant
to this Rule, and the owner or operator obtained a final and legally effective T-BACT determination prior to the