SHASTA COUNTY AIR QUALITY MANAGEMENT DISTRICT
RULE 5:1 - RULE TO LIMIT POTENTIAL TO EMIT OF TITLE V SOURCES
(Adopted 12-5-95)
a. Purpose
The Purpose of this rule is to eliminate the need for certain stationary sources to obtain a Title V operating
permit pursuant to District Rule 5 - Additional Procedures for Issuing Permits to Operate for Sources Subject to
Title V of the Federal Clean Air Act Amendments of 1990. Stationary sources subject to this rule are those whose
actual emissions are equal to or less than 50% of those of a major stationary source, but whose potential emissions
are equal to or greater than the major stationary source thresholds. These sources must comply with emissions limitations
specified in this rule.
b. Definitions
All terms shall retain the definitions provided under District Rule 5 unless otherwise defined herein.
12-month period: A period of twelve consecutive months determined on a rolling basis with a new 12-month
period beginning on the first day of each calendar month.
Actual Emissions: The emissions of a regulated air pollutant from a stationary source for every 12-month
period. Valid continuous emission monitoring data or source test data shall be preferentially used to determine
actual emissions. In the absence of valid continuous emissions monitoring data or source test data, the basis for
determining actual emissions shall be: throughputs of process materials; throughputs of materials stored; usage
of materials; data provided in manufacturer's product specifications, material volatile organic compound (VOC)
content reports or laboratory analyses; other information required by this rule and applicable District, State
and Federal regulations; or information requested in writing by the District. All calculations of actual emissions
shall use U.S. Environmental Protection Agency (EPA), California Air Resources Board (CARB) or District approved
methods, including emission factors and assumptions.
Alternative Operational Limit: A limit on a measurable parameter, such as hours of operation, throughput
of materials, use of materials, or quantity of product, as specified in section e. of this Rule, Alternative Operational
Limit and Requirements.
Emission Unit: Any article, machine, equipment, operation, contrivance or related groupings of such that may produce
and/or emit any regulated air pollutant or hazardous air pollutant.
Federal Clean Air Act: The federal Clean Air Act (CAA) as amended in 1990 (42 U.S.C. section 7401 et seq.)
and its implementing regulations.
Hazardous Air Pollutant (HAP): Any air pollutant listed pursuant to section 112(b) of the federal Clean
Air Act.
Major Source of Regulated Air Pollutants (excluding HAPs): A stationary source that emits or has the potential
to emit a regulated air pollutant (excluding HAPs) in quantities equal to or exceeding the lesser of any of the
following thresholds:
- 100 tons per year (tpy) of any regulated air pollutant;
- 50 tpy of volatile organic compounds or oxides of nitrogen for a federal ozone nonattainment area classified
as serious, 25 tpy for an area classified as severe, or 10 tpy for an area classified as extreme; and
- 70 tpy of PM10 for a federal PM10 nonattainment area classified as serious.
Fugitive emissions of these pollutants shall be considered in calculating total emissions for stationary sources
in accordance with 40 CFR Part 70.2 "Definitions- Major source(2)."
Major Source of Hazardous Air Pollutants: A stationary source that emits or has the potential to emit 10
tons per year or more of a single HAP listed in section 112(b) of the CAA, 25 tons per year or more of any combination
of HAPs, or such lesser quantity as the U.S. EPA may establish by rule. Fugitive emissions of HAPs shall be considered
in calculating emissions for all stationary sources. The definition of a major source of radionuclides shall be
specified by rule by the U.S. EPA .
Potential to Emit: The maximum capacity of a stationary source to emit a regulated air pollutant based on
its physical and operational design. Any physical or operational limitation on the capacity of the stationary source
to emit a pollutant, including air pollution control equipment and restrictions on hours of operation or on the
type or amount of material combusted, stored, or processed,
shall be treated as part of its design only if the limitation is federally enforceable.
Process Statement: An annual report on permitted emission units from an owner or operator of a stationary
source certifying under penalty of perjury the following: throughputs of process materials; throughputs of materials
stored; usage of materials; fuel usage; any available continuous emissions monitoring data; hours of operation;
and any other information required by this rule or requested in writing by the District.
Regulated Air Pollutant: The following air pollutants are regulated:
- Oxides of nitrogen and volatile organic compounds;
- Any pollutant for which a national ambient air quality standard has been promulgated;
- Any Class I or Class II ozone depleting substance subject to a standard promulgated under Title VI of the federal
Clean Air Act;
- Any pollutant that is subject to any standard promulgated under section 111 of the federal Clean Air Act; and
- Any pollutant subject to a standard or requirement promulgated pursuant to section 112 of the federal Clean
Air Act, including:
- Any pollutant listed pursuant to section 112(r) (Prevention of Accidental Releases) shall be considered a regulated
air pollutant upon promulgation of the list.
- Any HAP subject to a standard or other requirement promulgated by the U.S. EPA pursuant to section 112(d) or
adopted by the District pursuant to 112(g) and (j) shall be considered a regulated air pollutant for all sources
or categories of sources: 1) upon promulgation of the standard or requirement, or 2) 18 months after the standard
or requirement was scheduled to be promulgated pursuant to section 112(e)(3).
- Any HAP subject to a District case-by-case emissions limitation determination for a new or modified source,
prior to the U.S. EPA promulgation or scheduled promulgation of an emissions limitation shall be considered a regulated
air pollutant when the determination is made pursuant to section 112(g)(2). In case-by-case emissions limitation
determinations, the HAP shall be considered a regulated air pollutant only for the individual source for which
the emissions limitation determination was made.
c. Applicability
- General Applicability: This rule shall apply to any stationary source which would, if it did not comply
with the limitations set forth in this rule, have the potential to emit air contaminants equal to or in excess
of the threshold for a major source of regulated air pollutants or a major source of hazardous air pollutants (HAPs)
and which meets one of the following conditions:
- In every 12-month period, the actual emissions of the stationary source are less than or equal to the emission
limitations specified in section d.1 below; or
- In every 12-month period, at least 90 percent of the emissions from the stationary source are associated with
an operation limited by any one of the alternative operational limits specified in section e.2 below.
- Stationary Source with De Minimis Emissions: The recordkeeping and reporting provisions in sections
g. and h. below shall not apply to a stationary source with de minimis emissions or operations as specified in
either subsection a) or b) below:
- In every 12-month period, the stationary source emits less than or equal to the following quantities of emissions:
- 5 tons per year of a regulated air pollutant (excluding HAPs),
- 2 tons per year of a single HAP,
- 5 tons per year of any combination of HAPs, and
- 20 percent of any lesser threshold for a single HAP that the United States Environmental Protection Agency
(U.S. EPA) may establish by rule.
- In every 12-month period, at least 90 percent of the stationary source's emissions are associated with an operation
for which the throughput is less than or equal to one of the quantities specified in subsections 1 through 9 below:
- 1,400 gallons of any combination of solvent-containing materials but no more than 550 gallons of any one solvent-containing
material, provided that the materials do not contain the following: methyl chloroform (1,1,1-trichloroethane),
methylene chloride (dichloromethane), tetrachloroethylene (perchloroethylene), or trichloroethylene;
- 750 gallons of any combination of solvent containing materials where the materials contain the following: methyl
chloroform (1,1,1-trichloroethane), methylene chloride (dichloromethane), tetrachloroethylene (perchloroethylene),
or trichloroethylene, but not more than 300 gallons of any one solvent-containing material;
- 4,400,000 gallons of gasoline dispensed from equipment with Phase I and II vapor recovery systems;
- 470,000 gallons of gasoline dispensed from equipment without Phase I and II vapor recovery systems;
- 1,400 gallons of gasoline combusted;
- 16,600 gallons of diesel fuel combusted;
- 500,000 gallons of distillate oil combusted, or
- 71,400,000 cubic feet of natural gas combusted.
Within 30 days of a written request by the District or the U.S. EPA, the owner or operator of a stationary source
not maintaining records pursuant to sections g. or h. shall demonstrate that the stationary source's emissions
or throughput are not in excess of the applicable quantities set forth in subsection a) or b) above.
- Provision for Air Pollution Control Equipment: The owner or operator of a stationary source may take into account
the operation of air pollution control equipment on the capacity of the source to emit an air contaminant if the
equipment is required by Federal, State, or District rules and regulations or permit terms and conditions. The
owner or operator of the stationary source shall maintain and operate such air pollution control equipment in a
manner consistent with good air pollution control practice for minimizing emissions. This provision shall not apply
after January 1, 1999 unless such operational limitation is federally enforceable or unless the District Board
specifically extends this provision and it is submitted to the U.S. EPA. Such extension shall be valid unless,
and until, the U.S. EPA disapproves the extension of this provision.
- Within three years of the effective date of District Rule 5, the District shall maintain and make available
to the public upon request, for each stationary source subject to this rule, information identifying the provisions
of this rule applicable to the source.
- This rule shall not relieve any stationary source from complying with requirements pertaining to any otherwise
applicable preconstruction permit, or to replace a condition or term of any preconstruction permit, or any provision
of a preconstruction permitting program. This does not preclude issuance of any preconstruction permit with conditions
or terms necessary to ensure compliance with this rule.
d. Emission limitations
- Unless the owner or operator has chosen to operate the stationary source under an alternative operational limit
specified in section e.2 below, no stationary source subject to this rule shall emit in every 12-month period more
than the following quantities of emissions:
- 50 percent of the major source thresholds for regulated air pollutants (excluding HAPs),
- 5 tons per year of a single HAP,
- 12.5 tons per year of any combination of HAPs, and d) 50 percent of any lesser threshold for a single HAP as
the U.S. EPA may establish by rule.
- The Air Pollution Control Officer (APCO) shall evaluate a stationary source's compliance with the emission
limitations in section d.1 above as part of the District's annual permit renewal process required by Health &
Safety Code section 42301(e). In performing the evaluation, the APCO shall consider any annual process statement
submitted pursuant to Section h., Reporting Requirements. In the absence of valid continuous emission monitoring
data or source test data, actual emissions shall be calculated using emissions factors approved by the U.S. EPA,
CARB, or the APCO.
- Unless the owner or operator has chosen to operate the stationary source under an alternative operational limit
specified in section e.2 below, the owner or operator of a stationary source subject to this rule shall obtain
any necessary permits prior to commencing any physical or operational change or activity which will result in actual
emissions that exceed the limits specified in section d.1 above.
e. Alternative Operational Limit And Requirements
- The owner or operator may operate the permitted emission units at a stationary source subject to this rule
under any one of the alternative operational limits, specified in section e.2 below provided that at least 90 percent
of the stationary source's emissions in every 12-month period are associated with the operation(s) limited by the
alternative operational limit.
- Upon choosing to operate a stationary source subject to this rule under any one of the following alternative
operational limits, the owner or operator shall operate the stationary source in compliance with the alternative
operational limit and comply with the following recordkeeping and reporting requirements.
- The owner or operator shall report within 4 hours to the APCO any exceedance of the alternative operational
limit.
- The owner or operator shall maintain all purchase orders, invoices, and other documents to support information
required to be maintained in a monthly log. Records required under this section shall be maintained on site for
five years and be made available to District or U.S. EPA staff upon request.
- Gasoline Dispensing Facility Equipment with Phase I and II Vapor Recovery Systems
The owner or operator shall operate the gasoline dispensing equipment in compliance with the following requirements:
- No more than 7,000,000 gallons of gasoline shall be dispensed in every 12-month period.
- A monthly log of gallons of gasoline dispensed in the preceding month with a monthly calculation of the total
gallons dispensed in the previous 12 months shall be kept on site.
- A copy of the monthly log shall be submitted to the APCO at the time of annual permit renewal. The owner or
operator shall certify that the log is accurate and true.
- Degreasing or Solvent-Using Unit: The owner or operator shall operate the degreasing or solvent-using unit(s)
in compliance with the following requirements:
-
- If the solvents do not include methyl chloroform (1,1,1-trichloroethane), methylene chloride (dichloromethane),
tetrachloroethylene (perchloroethylene), or trichloroethylene, no more than 5,400 gallons of any combination of
solvent-containing materials and no more than 2,200 gallons of any one solvent-containing material shall be used
in every 12-month period,.
- If the solvents include methyl chloroform (1,1,1-trichloroethane), methylene chloride (dichloromethane), tetrachloroethylene
(perchloroethylene), or trichloroethylene, no more than 2,900 gallons of any combination of solvent-containing
materials and no more than 1,200 gallons of any one solvent-containing material shall be used in every 12-month
period.
- A monthly log of amount and type of solvent used in the preceding month with a monthly calculation of the total
gallons used in the previous 12 months shall be kept on site.
- A copy of the monthly log shall be submitted to the APCO at the time of annual permit renewal. The owner or
operator shall certify that the log is accurate and true.
- Diesel-Fueled Emergency Standby Engine(s) with Output Less Than 1,000 Brake Horsepower
The owner or operator shall operate the emergency standby engine(s) in compliance with the following requirements:
- The emergency standby engine(s) shall not operate more than 5,200 hours in every 12-month period and shall
not use more than 265,000 gallons of diesel fuel in every 12-month period.
- A monthly log of hours of operation, gallons of fuel used, and a monthly calculation of the total hours operated
and gallons of fuel used in the previous 12 months shall be kept on site.
- A copy of the monthly log shall be submitted to the APCO at the time of annual permit renewal. The owner or
operator shall certify that the log is accurate and true.
- The owner or operator of a stationary source subject to this rule shall obtain any necessary permits prior
to commencing any physical or operational change or activity which will result in an exceedance of an applicable
operational limit specified in section e.2 above.
f. Exemptions
- Exemption, Stationary Source Subject to District Rule 5, Title V Federal Operating Permit Program: This rule
shall not apply to the following stationary sources:
- Any stationary source whose actual emissions, throughput, or operation, at any time after the effective date
of this rule, is greater than the quantities specified in sections d.1 or e.2 of this rule and which meets both
of the following conditions:
- The owner or operator has notified the APCO at least 30 days prior to any exceedance that s/he will submit
an application for a Title V permit, as required by District Rule 5, or otherwise obtain federally-enforceable
permit limits, in accordance with District Rule 5:2, and
- A complete Title V permit application is received by the District, or the permit action to otherwise obtain
federally-enforceable limits is completed, within 12 months of the date of notification.
However, the stationary source may be immediately subject to applicable federal requirements, including but not
limited to, a maximum achievable control technology (MACT) standard.
- Any stationary source that has applied for a Title V permit in a timely manner and in conformance with District
Rule 5, and is awaiting final action by the District and U.S. EPA.
- Any stationary source required to obtain an operating permit under District Rule 5 for any reason other than
being a major source.
- Any stationary source with a valid Title V permit.
Notwithstanding subsections b) and d) above, nothing in this section shall prevent any stationary source which
has had a Title V permit from qualifying to comply with this rule in the future in lieu of maintaining an application
for a Title V permit or upon rescission of a Title V permit if the owner or operator demonstrates that the stationary
source is in compliance with the emissions limitations in section d.1 of this rule or an applicable alternative
operational limit in section e.2.
- Exemption, Stationary Source with a Limitation on Potential to Emit: This rule shall not apply to any stationary
source which has a valid operating permit with federally-enforceable conditions or other federally-enforceable
limits limiting its potential to emit to below the applicable threshold(s) for a major source as defined in section
b. above.
g. Record Keeping Requirements
Immediately after the effective date of this rule, the owner or operator of a stationary source subject to this
rule shall comply with any applicable recordkeeping requirements in this section. However, for a stationary source
operating under an alternative operational limit, the owner or operator shall instead comply with the applicable
recordkeeping and reporting requirements specified in section e., Alternative Operational Limit and Requirements.
The recordkeeping requirements of this rule shall not replace any recordkeeping requirement contained in an operating
permit or in a District, State, or Federal rule or regulation.
- A stationary source previously exempted from the recordkeeping and reporting provisions in sections g. and
h. as allowed for sources with de minimis emissions pursuant to section c.2 of this rule, shall comply with the
applicable recordkeeping provisions of this section and the reporting requirements of section h. below if the stationary
source exceeds the quantities specified in section c.2.a) above.
- The owner or operator of a stationary source subject to this rule shall keep and maintain records for each
permitted emission unit or groups of permitted emission units sufficient to determine actual emissions. Such information
shall be summarized in a monthly log, maintained on site for five years, and be made available to District, CARB,
or U.S. EPA staff upon request.
- Coating/Solvent Emission Unit: The owner or operator of a stationary source subject to this rule that
contains a coating/solvent emission unit or uses a coating, solvent, ink or adhesive shall keep and maintain the
following records:
- A current list of all coatings, solvents, inks and adhesives in use. This list shall include: information on
the manufacturer, brand, product name or code, VOC content in grams per liter or pounds per gallon, HAPS content
in grams per liter or pounds per gallon, or manufacturer's product specifications, material VOC content reports
or laboratory analyses providing this information;
- A description of any equipment used during and after coating/solvent application, including type, make and
model; maximum design process rate or throughput; control device(s) type and description (if any); and a description
of the coating/solvent application/drying method(s) employed;
- A monthly log of the consumption of each solvent (including solvents used in clean-up and surface preparation),
coating, ink and adhesive used; and
- All purchase orders, invoices, and other documents to support information in the monthly log.
- Organic Liquid Storage Unit: The owner or operator of a stationary source subject to this rule that
contains a permitted organic liquid storage unit shall keep and maintain the following records:
- A monthly log identifying the liquid stored and monthly throughput; and
- Information on the tank design and specifications including control equipment.
- Combustion Emission Unit: The owner or operator of a stationary source subject to this rule that contains
a combustion emission unit shall keep and maintain the following records:
- Information on equipment type, make and model, maximum design process rate or maximum power input/output, minimum
operating temperature (for thermal oxidizers) and capacity, control device(s) type and description (if any) and
all source test information; and
- A monthly log of hours of operation, fuel type, fuel usage, fuel heating value (for non-fossil fuels; in terms
of BTU/lb or BTU/gal), percent sulfur for fuel oil and coal, and percent nitrogen for coal.
- Emission Control Unit: The owner or operator of a stationary source subject to this rule that contains
an emission control unit shall keep and maintain the following records:
- Information on equipment type and description, make and model, and emission units served by the control unit;
- Information on equipment design including where applicable: pollutant(s) controlled; control effectiveness;
maximum design or rated capacity; inlet and outlet temperatures, and concentrations for each pollutant controlled;
catalyst data (type, material, life, volume, space velocity, ammonia injection rate and temperature); baghouse
data (design, cleaning method, fabric material, flow rate, air/cloth ratio); electrostatic precipitator data (number
of fields, cleaning method, and power input); scrubber data (type, design, sorbent type, pressure drop); other
design data as appropriate; all source test information; and
- A monthly log of hours of operation including notation of any control equipment breakdowns, upsets, repairs,
maintenance and any other deviations from design parameters.
- General Emission Unit: The owner or operator of a stationary source subject to this rule that contains
an emission unit not included in subsections g.2.a),b),or c) above shall keep and maintain the following records:
- Information on the process and equipment including the following: equipment type, description, make and model;
maximum design process rate or throughput; control device(s) type and description (if any);
- Any additional information requested in writing by the APCO;
- A monthly log of operating hours, each raw material used and its amount, each product produced and its production
rate; and
- Purchase orders, invoices, and other documents to support information in the monthly log.
h. Reporting Requirements
- At the time of annual renewal of a permit to operate under District Rule 2:1, each owner or operator of a stationary
source subject to this rule shall submit to the District a process statement. The statement shall be signed by
the owner or operator and certify that the information provided is accurate and true.
- A process statement shall not be required if stationary source emissions in every 12-month period are less
than or equal to the following quantities:
- For any regulated air pollutant (excluding HAPs),
- 25 tons per year including a regulated air pollutant for which the District has a federal area designation
of attainment, unclassified, transitional, or moderate nonattainment,
- 15 tons per year for a regulated air pollutant for which the District has a federal area designation of serious
nonattainment,
- 6.25 tons per year for a regulated air pollutant for which the District has a federal area designation of severe
nonattainment,
- 2.5 tons per year of a single HAP,
- 6.25 tons per year of any combination of HAPs, and
- 25 percent of any lesser threshold for a single HAP as the U.S. EPA may establish by rule.
- A stationary source previously exempted from providing a process statement as allowed in section h.2 above
shall comply with the provisions of section g.1 above if the stationary source exceeds the quantities specified
in section h.2.
- Any additional information requested by the APCO under section h.1 above shall be submitted to the APCO within
30 days of the date of request.
i. Violations
- Failure to comply with any of the applicable provisions of this rule shall constitute a violation of this rule.
Each day during which a violation of this rule occurs is a separate offense.
- A stationary source subject to this rule shall be subject to applicable federal requirements for a major source,
including District Rule 5 when the conditions specified in either subsections a) or b) below, occur:
- Commencing on the first day following every 12-month period in which the stationary source exceeds a limit
specified in section d.1 above and any applicable alternative operational limit specified in section e.2, above,
or
- Commencing on the first day following every 12-month period in which the owner or operator can not demonstrate
that the stationary source is in compliance with the limits in section d.1 above or any applicable alternative
operational limit specified in section e.2 above.
j. Effective Date
- This rule becomes effective on the date that it is approved by the U.S. Environmental Protection Agency (EPA)
into the State Implementation Plan (SIP).