Standard Exemptions 116 - 122, August 11, 1989 Standard
Exemption List
Clicking on a highlighted number below
links you to the standard exemption.
116 |
117 |
118 |
119 |
120 |
121 |
122
116. Automobile restoration
facilities, provided the following conditions are met:
(a) All automobile body/chassis abrasive blast cleaning and
coating operations shall be performed in a closed building or
enclosure; or the facility shall be located a minimum of 300 feet
from any recreational area or residence not occupied or used solely
by the owner of the facility or the owner of the property upon
which the facility is located, except that structures occupied by
security or watch personnel may be located contiguously.
(b) Total abrasive usage shall be less than 100 pounds per
hour, 500 pounds per day, and five tons per year.
(c) Total cleaning or paint usage, including solvents used for
any cleaning and/or thinning purposes, shall be less than five
gallons per day and 100 gallons per year.
(d) The owner or operator of the facility shall maintain daily
and annual records of the usage of all abrasives and coating
materials used at the facility, and these records shall be made
available at the request of personnel from the Texas Air Control
Board or any local air pollution control program having
jurisdiction.
These records shall be organized such that the compliance
status of this standard exemption can be readily determined.
117. Any specialty wet batch,
concrete, mortar, grout mixing, or pre-cast concrete products plant
that operates according to the following conditions:
(a) Plant capacity shall not exceed 30 cubic yards per hour
with mixer size not to exceed 2.5 cubic yards.
(b) All stockpiles are sprinkled with water and/or chemicals
as necessary to achieve maximum control of dust emissions.
(c) Dust emissions at the batch mixer feed shall be controlled
by a water spray device which eliminates visible emissions, or a
pickup device delivering air to a fabric filter with automatic air
cleaning and a 7.0 feet per minute (ft/min) maximum filtering
velocity, or automatic sequenced mechanical cleaning and a 5.25
ft/min maximum filtering velocity, or the entire mixing operation
is conducted inside the enclosed process building such that no
visible emissions from the building occur during mixing activities,
or the batch mixer feed is enclosed such that no visible emissions
occur.
(d) Fabric filter(s) with a maximum filtering velocity of 4.0
ft/min with an acceptable method of cleaning shall be installed on
each storage silo or the silo is vented to the control collection
system.
(e) A visible and/or audible warning mechanism shall be
installed on each silo for warning operators that the silo is full,
so that it will not be overloaded at any time.
(f) All permanent in-plant roads (batch truck and material
delivery truck roads) are oiled or paved and cleaned as necessary
to achieve maximum control of dust emissions. Other areas on the
property subject to vehicle traffic shall be oiled or sprinkled
with water as necessary to achieve maximum control of dust
emissions.
(g) The transfer of cement from the storage silo(s) shall be
handled through closed conveying systems with no visible fugitive
emissions.
(h) The cement weigh hopper shall be vented to a control
device which eliminates visible emissions, or shall be vented
inside the batch mixer.
(i) Good housekeeping measures shall be maintained at all
times.
(j) Before construction of the facility begins, written site
approval is received from the Executive Director of the Texas Air
Control Board and the facility shall be registered with the
appropriate Regional Office using Form PI-7, including a current
Table 20.
(k) Unless the plant is to be located temporarily in the
right-of-way of a public works project, public notice and
opportunity for public hearing, as specified in 30 TAC Section
116.10(a)(3) and (4) and (b), has been published and documentation
thereof has been provided to the TACB.
118. Facilities, or physical or
operational changes to a facility, provided that all of the
following conditions are satisfied:
(a) This exemption shall not be used to authorize construction
or any change to a facility specifically authorized in another
standard exemption, but not meeting the requirements of that
exemption. However, once the requirements of a specific exemption
are met, Exemption 118(c) and (d) may be used to qualify the use of
other chemicals at the facility.
(b) Emission points associated with the facilities or changes
shall be located at least 100 feet from any off-plant receptor*.
(c) New or increased emissions, including fugitives, of
chemicals shall not be emitted in a quantity greater than five tons
per year nor in a quantity greater than E as determined using the
equation E = L/K and the following table.
|
| D, Feet |
K |
| 100 |
326 |
| 200 |
200 |
| 300 |
139 |
| 400 |
104 |
| 500 |
81 |
| 600 |
65 |
| 700 |
54 |
| 800 |
46 |
| 900 |
39 |
| 1000 |
34 |
| 2000 |
14 |
| 3000 or more |
8 |
E = maximum allowable hourly emission and never to exceed 6
pounds per hour.
L = value as listed or referenced in Table 118A
K = value from the table on this page. Interpolate
intermediate values
D = distance to the nearest off-plant receptor.
(d) Notification must be provided using Form PI-7 within 10
days following the installation or modification of the facilities.
The notification shall include a description of the project,
calculations, and data identifying specific chemical names, L
values, D values, and a description of pollution control equipment,
if any.
(e) The facilities in which the following chemicals will be
handled shall be located at least 300 feet from the nearest
property line and 600 feet from any off-plant receptor and the
cumulative amount of any of the following chemicals resulting from
one or more authorizations under this exemption (but not including
permit authorizations) shall not exceed 500 pounds on the plant
property and all listed chemicals shall be handled only in unheated
containers operated in compliance with the United States Department
of Transportation regulations (49 CFR Parts 171 through 178):
acrolein, ammonia, arsine, boron trifluoride, bromine, carbon
disulfide, chlorine, chlorine dioxide, chlorine trifluoride,
chloroacetaldehyde, chloropicrin, chloroprene, diazomethane,
diborane, dimethylhydrazine, ethyl mercaptan, fluorine,
formaldehyde, hydrogen bromide, hydrogen chloride, hydrogen
cyanide, hydrogen fluoride, hydrogen selenide, hydrogen sulfide,
ketene, methylamine, methyl bromide, methylhydrazine, methyl
isocyanate, methyl mercaptan, nickel carbonyl, nitric oxide,
nitrogen dioxide, oxygen difluoride, ozone, pentaborane,
perchloromethyl mercaptan, perchloryl fluoride, phosgene,
phosphine, phosphorus trichloride, selenium hexafluoride, stibine,
liquified sulfur dioxide, sulfur pentafluoride, and tellurium
hexafluoride. Containers of these chemicals may not be vented or
opened directly to the atmosphere at any time.
(f) For physical changes or modifications to existing
facilities, there shall be no changes or additions of air pollution
abatement equipment.
(g) Visible emissions, except uncombined water, to the
atmosphere from any point or fugitive source shall not exceed 5.0%
opacity in any five-minute period.
* Off-plant receptor means any recreational area or residence
or other structure not occupied or used solely by the owner or
operator of the facilities or the owner of the property upon which
the facilities are located.
Table 118A
Limit Values (L) for Use with Standard Exemption 118
Values included in this table represent screening levels for
determining the applicability of Standard Exemption 118 and other
standard exemptions using the Exemption 118 equation. The values
are not to be interpreted as acceptable health effects values
relative to the issuance of construction permits, special permits
or operating permits under Regulation VI.
|
| Compound |
Limit (L) Milligrams per Cubic Meter |
| Acetone |
590 |
| Acetaldehyde |
9 |
| Acetone Cyanohydrin |
4 |
| Acetonitrile |
34 |
| Acetylene |
2662 |
| Adiponitrile |
18 |
| Aldrin |
0.15 |
| Sec-Amyl Acetate |
1.1 |
| Arsenic |
0.01 |
| Benzene |
3 |
| Beryllium and Compounds |
0.0005 |
| Butyl Acrylate |
19 |
| Butyl Glycidyl Ether |
30 |
| Butyl Mercaptan |
0.3 |
| Butyraldehyde |
1.4 |
| Butyric Acid |
7.3 |
| Butyronitrile |
22 |
| Carbon Tetrachloride |
12 |
| Chloroform |
10 |
| Chlorophenol |
0.2 |
| Chloroprene |
3.6 |
| Chromic Acid |
0.05 |
| Chromium and Compounds |
0.025 |
| Coal Tar Pitch Volatiles |
0.1 |
| Creosote |
0.1 |
| Cresol |
0.12 |
| Cumene |
43 |
| o-Dichlorobenzene |
180 |
| p-Dichlorobenzene |
108 |
| 1,2-dichloroethylene |
79 |
| Dicyclopentadiene |
3.1 |
| Diethylaminoethanol |
5.5 |
| Diisobutyl Ketone |
140 |
| Dimethyl Aniline |
6.4 |
| Dimethylhydrazine |
0.15 |
| Dioxane |
3.6 |
| Dipropylamine |
8.4 |
| Ethyl Acrylate |
0.5 |
| Ethylene Dibromide |
1 |
| Ethylene Glycol Dinitrate |
0.1 |
| Ethylene Oxide |
0.18 |
| Ethyl Mercaptan |
0.15 |
| Ethyl Sulfide |
1.6 |
| Fibrous Glass Dust |
5 |
| Gylcolonitrile |
5 |
| Heptane |
350 |
| Hydrazine |
0.04 |
| Hydrogen Chloride |
1 |
| Hydrogen Sulfide |
1.1 |
| Isoamyl Acetate |
13 |
| Isoamyl Alcohol |
15 |
| Isobutyronitrile |
22 |
| Isophorone Diisocyanate |
0.045 |
| Kepone |
0.001 |
| Kerosene |
100 |
| Malononitrile |
8 |
| Mercury, Inorganic |
0.05 |
| Mesityl Oxide |
40 |
| Methyl Acrylate |
1.7 |
| Methyl Amyl Ketone |
5.8 |
| Methyl Butyl Ketone |
4 |
| Methyl Disulfide |
2.2 |
| Methylenebis (Chloroaniline)
MOCA |
0.003 |
| Methylenebis (Phenyl
isocyanate) |
0.05 |
| Methylene Chloride |
26 |
| Methylhydrazine |
0.08 |
| Methyl Isoamyl Ketone |
5.8 |
| Methyl Mercaptan |
0.3 |
| Methyl Methacrylate |
34 |
| Methyl Propyl Ketone |
530 |
| Methyl Sulfide |
0.5 |
| Mineral Spirits |
350 |
| Naphtha |
350 |
| Nickel, Inorganic Compounds |
0.015 |
| Nitroglycerine |
0.1 |
| Nitropropane |
36 |
| Octane |
350 |
| Parathion |
0.05 |
| Pentane |
350 |
| Perchloroethylene |
33.5 |
| Petroleum Ether |
350 |
| Phenyl Glycidyl Ether |
5 |
| Phenylhydrazine |
0.6 |
| Phenyl Mercaptan |
0.4 |
| Propionitrile |
14 |
| Propyl Acetate |
281 |
| Propylene Oxide |
5 |
| Propyl Mercaptan |
0.08 |
| Stoddard Solvent |
350 |
| Styrene |
21 |
| Succinonitrile |
20 |
| Tolidine |
0.02 |
| Trichloroethylene |
135 |
| Trimethylamine |
0.1 |
| Valeric Acid |
0.34 |
| Vinyl Acetate |
15 |
| Vinyl Chloride |
2 |
The time weighted average Threshold Limit Value (TLV)
published by the American Conference of Governmental Industrial
Hygienists (ACGIH, 1985-1986 Edition) shall be used for compounds
not included in the table. Standard Exemption 118 cannot be used if
the compound is not listed in the table or does not have a
published TLV in the ACGIH.
119. Any feed grinding operation
which is used only for noncommercial purposes.
120. Sawmills processing no more
than 25 million board feet, green lumber tally of wood per year, in
which no mechanical drying of lumber is performed and which meet
all of the following provisions:
(a) The mill shall be located at least 500 feet from any
recreational area, school, residence, or other structure not
occupied or used solely by the owner of the facility or the owner
of the property upon which the facility is located.
(b) All in-plant roads and vehicle work areas shall be
watered, oiled, or paved and cleaned as necessary to achieve
maximum control of dust emissions.
(c) All sawmill residues (sawdust, shavings, chips, bark) from
debarking, planing, saw areas, etc., shall be removed or contained
to minimize fugitive particulate emissions. Spillage of wood
residues shall be cleaned up as soon as possible and contained such
that dust emissions from wind erosion and/or vehicle traffic are
minimized.
(d) All sawmill residues shall be mechanically conveyed by
belts and/or drag chains to a collection area for disposal or if a
pneumatic collection system is utilized, the air must exhaust to a
fabric or cartridge filter with air cleaning and a filtering
velocity no greater than 7.0 ft/min (air-to-cloth ratio = 7.0), or
automatic sequenced mechanical cleaning and a filtering velocity no
greater than 5.0 ft/min (air-to-cloth ratio = 5.0), or a system
found to be equivalent by the appropriate Regional Office.
(e) Disposal of collected sawmill residues must be
accomplished in a manner which will prevent the material from
becoming airborne. Disposal by means of burning is prohibited
unless it is conducted in an approved incinerator.
(f) All open-bodied vehicles transporting sawmill residues
(sawdust, shavings, chips, bark) shall be covered with a tarp to
achieve maximum control of particulate emissions.
(g) There will be no visible emissions at the property line
from the facility or equipment.
(h) Before construction of the facility begins, written site
approval must be received from the director of the Texas Natural
Resource Conservation Commission Office of Air Quality in Austin
and the facility shall be registered with that office using Form
PI-7.
121. Any lime slaking facility used
to mix quicklime with water, provided the following conditions are
met:
(a) The mixing vessel shall be horizontal.
(b) The mixing vessel shall use interior mechanical agitation
parallel to the bottom and agitate the water over the full length
of the vessel.
(c) Quicklime shall be injected into the mixing vessel as
follows:
(1) Where injection is from a pneumatic transfer system, the
quicklime shall be injected at a point at least 12 inches under the
surface of the agitated water, or;
(2) Where injection is from a non-pneumatic conveying system
unloading at the top of the vessel, emissions from any vent on the
vessel shall be controlled by an appropriately sized wet scrubber.
(d) There shall be no visible emissions (other than uncombined
water).
122. Any silo used to store hot mix
asphalt or asphalt emulsion concrete mixtures which meets the
following conditions:
(a) No cutback asphalt mixtures are stored;
(b) For silos on location for more than six months, all truck
traffic areas are paved and cleaned as necessary to achieve maximum
control of dust emissions and for those silos on location for six
months or less, the truck traffic areas are sprinkled with water
and/or chemicals as necessary to achieve maximum control of dust
emissions.
(c) Fuel used for heating the silo is sweet natural gas as
defined in General Rules as adopted by the Texas Air Control Board
or liquid petroleum gas or first run refinery grade diesel or
Number 2 fuel oil that is not a blend containing waste oils or
solvents and that contains less than 0.5% by weight sulfur.
(d) The silo(s) is located at least 300 feet from any
recreational area, school, residence, or other structure not
occupied or used solely by the owner of the property upon which the
silo(s) is located.
(e) Before construction begins, written site approval is
received from the Executive Director of the TNRCC and the facility
is registered with the TNRCC Office of Air Quality in Austin using
Form PI-7.
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