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Sources of air emissions which require permits include point sources (major stationary
commercial and industrial facilities), area sources (smaller stationary sources like dry
cleaners and print shops), and devices (individual burners, furnaces, machines, etc.). The
table below details the source/device threshold limits which trigger the requirement for
obtaining an air permit from the Air Resources Division.
In addition to the specific sources/devices listed in the table, the Rules contain
other conditions under which a source would be required to obtain a permit. Examples of
these conditions include:
- Sources choosing to limit their potential to emit by accepting enforceable permit
conditions;
- Sources at which documented and repeated violations occur of any of the applicable
opacity or emission limits found in the Rules;
- Sources at which documented and repeated violations of any NAAQS occur and the source
is
a significant contributor to the violation;
- Sources subject to "New Source Review," a pollutant-specific program for new
sources or modifications to sources which have emission levels above certain applicability
thresholds;
- Sources subject to National Emission Standards for Hazardous Air Pollutants (NESHAP)
for
source categories defined in federal regulations 40 CFR Parts 61 and 63;
- Sources operating as treatment, storage or disposal facilities under the NH Hazardous
Waste Rules;
- Sources subject to the Rules governing Air Toxic Pollutants;
- Sources subject to the Rules governing reasonably available control technology (RACT)
for volatile organic compounds (VOCs) or nitrogen oxides (NOx);
- Sources where a permit is required in order to achieve compliance with NAAQS;
- Sources affected by or opting into the Acid Rain program under Title IV of the federal
Clean Air Act Amendments of 1990; and
- Sources defined in the Rules as "major sources," as determined by the type and
amount of pollutant emitted from the source and the geographical location of the source
(required by Title V of the federal Clean Air Act Amendments of 1990).
Devices and Sources Which Require Permits for Air
Emissions
|
Device/Source |
Design
Rating |
Fuel |
Fuel Burning
Device |
>= 10
million BTU/hr |
Natural Gas, LP Gas, #2
fuel oil |
Fuel Burning
Device |
>= 4
million BTU/hr |
#4 fuel oil |
Fuel Burning
Device |
>= 2
million BTU/hr |
coal, wood, #6 fuel oil, used
oil |
Internal
Combustion
Engine
(One or more at a source; design rating threshold is combined total of
all engines) |
>=
1.5 million BTU/hr |
liquid fuel oil |
| >= 10
million BTU/hr |
Natural Gas or LP
Gas |
Potential to
emit
> 25 tons per year of any single regulated air pollutant |
Incinerator |
>=
1,000 lbs/hr |
Type 0, 1, 2, 3
waste |
Incinerator |
>=
200 lbs/hr |
Type 4, 5, 6, 7
waste |
Stationary Source, Area
Source,
or Device |
Total actual
photochemically-reactive VOC emissions >= 10 tons per year |
Aboveground, Vertical,
VOC
Storage Tank |
Capacity
$ 40,000 gallons containing VOCs with a
true
vapor pressure >= 1.52 psia
at 60EF |
Device for loading tank
trucks
with gasoline at a gasoline terminal |
Design
throughput >= 20,000 gal/day |
Woodworking Device
employing
pneumatic transfer system, using a cyclone but no baghouse, for collecting any amount of
sander dust |
Wood waste
collection
rate >= 20
tons/yr |
Pneumatic dust transfer
equipment
used to convey materials, other than wood waste, into bins or silos, and not using a
baghouse or filter for controlling dust |
Fixed non-metallic mineral
processing plant or coal crusher |
Design
throughput >= 25 tons/hr |
Portable sand and gravel or
crushed stone plant or coal crusher |
Design
throughput > 150 tons/hr
|
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