(3) Exempt TEUs. A TEU
is an exempt TEU if it meets the criteria in subsection (a) or (b):
(a) The owner or operator of the TEU has
demonstrated that the TEU is not likely to emit toxic air contaminants and DEQ
approves such demonstration. The demonstration may include any information the
owner or operator considers relevant, including but not limited to:
(A) The chemical make-up of the materials
handled or processed in the TEU as provided by Environmental, Safety, or
Product Data Sheets, or equivalent documents; and
(B) Whether or not the handling or processing
of materials in the TEU is likely to alter the chemical make-up of the
materials and the chemical make-up or likely chemical make-up of the materials
emitted by the TEU.
(b)
The TEU is one of the following regulated pollutant emitting activities,
principally supporting the source or the major industrial group:
(A) Evaporative and tailpipe emissions from
on-site motor vehicle operation;
(B) Distillate oil, kerosene, gasoline,
natural gas or propane burning equipment, provided the aggregate expected
actual emissions of the equipment identified does not exceed the de minimis
level for any regulated pollutant, based on the expected maximum annual
operation of the equipment. If a source's expected emissions from all such
equipment exceed the de minimis levels, then the source may identify a subgroup
of such equipment as an exempt TEU with the remainder not designated as an
exempt TEU. The following equipment may never be included as part of the exempt
TEU:
(i) Any individual distillate oil,
kerosene or gasoline burning equipment with a rating greater than 0.4 million
Btu/hour; and
(ii) Any individual
natural gas or propane burning equipment with a rating greater than 2.0 million
Btu/hour.
(C) Distillate
oil, kerosene, gasoline, natural gas or propane burning equipment brought on
site for six months or less for maintenance, construction or similar purposes,
such as but not limited to generators, pumps, hot water pressure washers and
space heaters, provided that any such equipment that performs the same function
as the permanent equipment, must be operated within the source's existing
PSEL;
(D) Office
activities;
(E) Food service
activities;
(F) Janitorial
activities;
(G) Personal care
activities;
(H) Groundskeeping
activities including, but not limited to, building painting and road and
parking lot maintenance;
(I)
On-site laundry activities;
(J)
On-site recreation facilities;
(K)
Instrument calibration;
(L)
Automotive storage garages;
(M)
Refrigeration systems with less than 50 pounds of charge of ozone depleting
substances regulated under Title VI, including pressure tanks used in
refrigeration systems but excluding any combustion equipment associated with
such systems;
(N) Bench scale
laboratory equipment and laboratory equipment used exclusively for chemical and
physical analysis, including associated vacuum producing devices but excluding
research and development facilities;
(O) Temporary construction
activities;
(P) Warehouse
activities;
(Q) Accidental fires
and fire suppression;
(R) Air vents
from air compressors;
(S) Air
purification systems;
(T)
Continuous emissions monitoring vent lines;
(U) Demineralized water tanks;
(V) Pre-treatment of municipal water,
including use of deionized water purification systems;
(W) Electrical charging stations;
(X) Fire brigade training;
(Y) Instrument air dryers and
distribution;
(Z) Fully enclosed
process raw water filtration systems;
(AA) Electric motors;
(BB) Pressurized tanks containing gaseous
compounds that do not contain toxic air contaminants;
(CC) Vacuum sheet stacker vents;
(DD) Emissions from wastewater discharges to
publicly owned treatment works (POTW) provided the source is authorized to
discharge to the POTW, not including on-site wastewater treatment and/or
holding facilities;
(EE) Log
ponds;
(FF) Stormwater settling
basins;
(GG) Paved roads and paved
parking lots within an urban growth boundary;
(HH) Hazardous air pollutant emissions in
fugitive dust from paved and unpaved roads except for those sources that have
processes or activities that contribute to the deposition and entrainment of
hazardous air pollutants from surface soils;
(II) Health, safety, and emergency response
activities;
(JJ) Non-diesel,
compression ignition emergency generators and pumps used only during loss of
primary equipment or utility service due to circumstances beyond the reasonable
control of the owner or operator, or to address a power emergency, provided
that the aggregate horsepower rating of all stationary emergency generator and
pump engines is not more than 3,000 horsepower. If the aggregate horsepower
rating of all stationary emergency generator and pump engines is more than
3,000 horsepower, then no emergency generators and pumps at the source may be
considered categorically insignificant;
(KK) Non-contact steam vents and leaks and
safety and relief valves for boiler steam distribution systems;
(LL) Non-contact steam condensate flash
tanks;
(MM) Non-contact steam vents
on condensate receivers, deaerators and similar equipment;
(NN) Boiler blowdown tanks; and
(OO) Ash piles maintained in a wetted
condition and associated handling systems and activities.