VENAPCD RULE 66 ORGANIC SOLVENTS

LAST REVISED 11/24/87





Rule 66. Organic Solvents (Adopted 5/23/72, Revised

6/24/75, 9/29/81, 7/5/83, 1/13/87, 11/24/87)

A. Reactive Organic Compound Materials (Solvents)

1. A person shall not discharge into the atmosphere more

than 15 pounds of reactive organic compounds in any one

day, nor more than 3 pounds in any one hour, from any

article, machine, equipment or other contrivance, in

which any organic solvent or any material containing

organic solvent comes into contact with flame or is

baked, heat-cured, or heat-polymerized, in the presence

of oxygen, unless said discharge has been reduced by at

least 85 percent. Those portions of any series of

articles, machines, equipment or other contrivances

designed for processing a continuous web, strip or wire

which emit reactive organic compounds and using

operations described in this section shall be

collectively subject to compliance with this section.

2. A person shall not discharge into the atmosphere more

than 40 pounds of reactive organic compounds in any one

day, nor more than 8 pounds in any one hour, from any

article, machine, equipment or other contrivance used

under conditions other than described in Section I, for

employing or applying, any photochemically reactive

solvent, as defined in Section 10, or material

containing such photochemically reactive solvent,

unless said discharge has been reduced by at least 85

percent. Emissions of reactive organic compounds into

the atmosphere resulting from air or heated drying of

products for the first 12 hours after their removal

from any article, machine, equipment, or other

contrivance described in this section shall be included

in determining compliance with this section. Emissions

resulting from baking, heat-curing, or heat

polymerizing as described in Section I shall be

excluded from determination of compliance with this

section. Those portions of any series of articles,

machines, equipment or other contrivances designed for

processing a continuous web, strip or wire which emit

reactive organic compounds and using operations

described in this section shall be collectively subject

to compliance with this section.

3. A person shall not discharge into the atmosphere more

than 3,000 pounds of organic material in any one day,

nor more than 450 pounds in any one hour, from any

article, machine, equipment or other contrivance in

which any non-photochemically reactive organic solvent

or any material containing such solvent is employed or

applied, unless said discharge has been reduced by at

least 85 percent.

Emissions of reactive organic compounds into the

atmosphere resulting from air or heated drying of

products for the first 12 hours after their removal of

any article, machine, equipment, or other contrivance

described in this section shall be included in

determining compliance described in this section.

Emissions resulting from baking, heat-curing, or heat-

polymerizing as described in Section 1 shall be

excluded from determination of compliance with this

section. Those portions of any contrivances designed

for processing a continuous web, strip, or wire which

emit reactive organic compounds and using operations

described in this section shall be collectively subject

to compliance with this section.

4. Emissions of reactive organic compounds to the

atmosphere from the clean-up with photochemically

reactive solvent, as defined in Section 10, of any

article, machine, equipment, or other contrivance

described in Sections 1, 2, or 3, shall be included

with the other emissions of reactive organic compounds

from that article, machine, equipment or other

contrivance for determining compliance with this Rule.

5. Emissions of reactive organic compounds into the

atmosphere required to be controlled by Sections 1, 2,

or 3, shall be reduced by:

a. Incineration, provided that 90 percent or more

of the carbon in the material being incinerated is

oxidized to carbon dioxide, or

b. Adsorption, or

c. Processing in a manner determined by the Air

Pollution Control District to be no less effective

than "a" or "b" above.

6. A person incinerating, adsorbing, or otherwise

processing reactive organic compounds pursuant to this

rule shall provide, properly install and maintain in

calibration, in good working order and in operation,

devices, as specified in the Authority to Construct or

the Permit to Operate, or as specified by the Air

Pollution Control District, for indicating

temperatures, pressures, rates of flow or other

operating conditions necessary to determine the degree

and effectiveness of air pollution control.

7. Any person using organic solvents or any materials

containing organic solvents shall supply the Air

Pollution Control District, upon request and in the

manner and form prescribed, written evidence, if so

required, of the chemical composition, physical

properties and amount consumed for each organic solvent

used.

8. RESERVED

9. For the purposes of this Rule, organic solvents

include diluents and thinners and are defined as

reactive organic compounds which are liquids at

standard conditions and which are used as dissolvers,

viscosity reducers or cleaning agents, except that such

materials which exhibit a boiling point higher than

220o F at 0.5 millimeter mercury absolute pressure or

having an equivalent vapor pressure shall not be

considered to be solvents unless exposed to

temperatures exceeding 220o F.

10. For the purposes of this Rule, a photochemically

reactive solvent is any solvent with an aggregate of

more than 20 percent of its total volume composed of

the chemical compounds classified below or which

exceeds any of the following individual percentage

composition limitations, referred to the total volume

of solvent:

a. A combination of hydrocarbons, alcohols,

aldehydes, esters, ethers or ketones having an

olefinic or cyclo-olefinic type of unsaturation:

5 percent;

b. A combination of aromatic compounds with eight

or more carbon atoms to the molecule except

ethylbenzene: 8 percent;

c. A combination of ethylbenzene, ketones having

branched hydrocarbon structure, trichloroethylene

or toluene: 20 percent.

Whenever any organic solvent or any constituent of an

organic solvent may be classified from its chemical

structure into more than one of the above groups or

reactive organic compounds, it shall be considered as a

member of the most reactive chemical group, that is,

that group having the least allowable percent of the

total volume of solvents.

11. For the purposes of this Rule, reactive organic

compounds are defined as chemical compounds of carbon

excluding carbon monoxide, carbon dioxide, carbonic

acid, metallic carbides, metallic carbonate and

ammonium carbonate.

B. Architectural Coatings

1. A person shall not sell or offer for sale for use in

Ventura County, in containers of one quart capacity or

larger, any architectural coating containing

photochemically reactive solvent, as defined in Rule

66.A.10;

2. A person shall not employ, apply, evaporate or dry in

Ventura County any architectural coating, purchased in

containers of one quart capacity or larger, containing

photochemically reactive solvent, as defined in Rule

66.A.10;

3. A person shall not thin or dilute any architectural

coating with a photochemically reactive solvent, as

defined in Rule 66;

4. For the purposes of this Rule, an architectural

coating is defined as a coating used to cover, inside

or outside, residential, commercial, industrial or

public buildings and appurtenances.

C. Disposal and Evaporation of Solvents

A person shall not during any one day dispose of a total of

more than 1-1/2 gallons of any photochemically reactive

solvent, as defined in Rule 66; or of any material

containing more than 1-1/2 gallons of any such

photochemically reactive solvent by any means which will

permit the evaporation of such solvent into the atmosphere.

D. Metal Surface Coating - Thinner and Reducers

A person shall not use photochemically reactive solvent, as

defined in Rule 66.A.10, to thin, reduce or dilute

industrial metal surface coatings unless the emissions of

organic materials into the atmosphere from the use of such

coatings is reduced by at least 85 percent by weight.

E. Exemptions

1. The provisions of this Rule shall not apply to:

a. The manufacture of organic solvents, or the

transport or storage of organic solvents or

materials containing organic solvents.

b. The use of equipment for which other

requirements are specified by Rules 61 or 71 or

which are exempt from air pollution control

requirements by said Rules,

c. The spraying or other employment or

insecticides, pesticides or herbicides,

d. The employment, application, evaporation or

drying of saturated halogenated hydrocarbons or

perchloroethylene,

e. The use of any material, in any article,

machine, equipment or other contrivance, described

in Section 1, 2, 3, or 4, if (Revised 9/29/81):

(1) The volatile content of such material

consists only of water and reactive organic

compounds, and

(2) The reactive organic compounds comprise

not more than 30 percent of said volatile

content, and

(3) The reactive organic compounds in such

material does not come into contact with

flame.

2. The provisions of this rule, except Sections A.7 and

D, shall not apply to the use of equipment, or

operations, that are subject to and comply with the

emission limits and/or formulation requirements

contained in the source-specific standards of Rules

74.2, 74.3, 74.6, 74.12, 74.13 and 74.14.