VENAPCD RULE 74.5.2 SYNTHETIC SOLVENT DRY CLEANING

LAST REVISED 12/04/90



Rule 74.5.2 Synthetic Solvent Dry Cleaning (Adopted 12/4/90)

A. Applicability

The requirements of this rule apply to any synthetic solvent

dry cleaning operation.

B. Emission Control Requirements

No person shall operate any synthetic solvent dry cleaning

operation unless one of the following requirements is

satisfied:

1. All exhaust gases from drying tumblers and drying

cabinets are vented through a carbon adsorber which

reduces the emission of synthetic solvent to the

atmosphere to no more than 100 ppm averaged over a

period of one minute and measured before dilution

during the drying cycle, or;

2. All exhaust gases from drying tumblers and drying

cabinets are vented through a control device, other

than a carbon adsorber, which reduces the emission of

synthetic solvent to the atmosphere by at least 90

percent by weight. For the purpose of determining

compliance with this subsection, a refrigerated

condenser which is operated in compliance with

subsection C.8, shall be deemed in compliance.

C. Operating Requirements

No person shall operate any synthetic solvent dry cleaning

equipment unless all of the following requirements are

satisfied:

1. No solvent liquid or solvent vapor shall leak from

any portion of the equipment. Leaking equipment shall

not be operated.

2. All washer lint traps, button traps, access door and

other parts of the equipment, where synthetic solvent

may be exposed to the atmosphere, shall be kept closed

at all times except when required to be open for proper

operation or maintenance.

3. Solvent still waste shall not contain more than 0.6

pound (lb) of synthetic solvent per lb of wet waste.

4. All cartridge filters shall be drained in the filter

housing for at least 24 hours before disposal or for at

least 12 hours provided that they are subsequently

dried in a closed container which is vented to a

control device which satisfies the requirements of

Section B, and is approved in writing by the Air

Pollution Control Officer (APCO).

5. Used diatomaceous earth filter material shall be

cooked in the muck cooker or treated so the residue

does not contain more than 0.25 lb of synthetic solvent

per lb of wet waste.

6. Any other filtration or distillation system may be

used if the system reduces synthetic solvent losses

below 1 lb per 100 lb of dry weight of articles

cleaned, and is approved in writing by the APCO.

7. All dry cleaning wastes, including but not limited to

waste solvent, still wastes, filter wastes, and drained

cartridge filters shall be stored in sealed containers

or underground tanks and shall be disposed of in

accordance with California hazardous waste disposal

regulations as described in the most recent version of

Title 22, Division 4, Chapter 30 of the California Code

of Regulations.

8. The air temperature at the outlet of the refrigerated

condenser shall reach 45oF or less during the cool-down

period. A temperature gauge with a minimum range of

0oF to 150oF shall be installed on the condenser outlet

duct.

D. Equipment Requirements

Effective December 4, 1990, no person shall install any dry

cleaning washer and/or drying tumbler which uses synthetic

solvents unless such equipment consists of a dry to dry unit

which satisfies the requirements of Section B. The

requirements of this section shall not apply to the

relocation of existing equipment which is permitted by the

Air Pollution Control District.

E. Exemptions

The provisions of Section B shall not apply to any synthetic

solvent dry cleaning operation consuming 1200 liters (320

gallons) or less of synthetic solvent per year, where the

washers and/or drying tumblers were installed before

December 4, 1990, provided the requirements of subsection

F.1 are satisfied.

F. Recordkeeping Requirements

1. Any person that operates a synthetic solvent dry

cleaning operation shall maintain records on a daily

basis or on the date performed showing all solvent

purchases, and the starting and ending times of all

cartridge filter draining and drying operations. In

addition, monthly solvent inventory records, and

records showing compliance with California hazardous

waste disposal regulations shall be maintained.

2. Any person subject to the requirements of subsection

C.6 shall maintain daily records of the dry weight of

articles cleaned.

3. Any person that operates a carbon adsorber for the

purpose of controlling emissions from a synthetic

solvent dry cleaning operation shall maintain records

on a daily basis or on the date performed showing the

dates on which the carbon adsorber was regenerated.

4. All records shall be retained for a minimum of two

years from the date of each entry. All records shall

be made available to the APCO upon request.

G. Test Methods

1. Compliance with the emission reduction requirements

in subsections B.1 and B.2 shall be determined by EPA

Method 18.

2. The synthetic solvent content of the wastes specified

in subsections C.3 and C.5, and wastes from systems

subject to subsection C.6 shall be determined by ASTM

Method D322, as modified below. ASTM Method D322 shall

be modified by using a Bidwell-Sterling type

distillation trap, calibrated using a hydrophobic

solvent with a specific gravity greater than water, in

place of the gasoline trap.

3. Solvent vapor leak determinations shall be made using

EPA Method 21.

H. Violations

Failure to comply with any provision of this rule, including

recordkeeping requirements, shall constitute a violation of

this rule.

I. Definitions

For the purposes of this rule the following definitions

shall apply:

1. "Cartridge filter": A discrete filter unit

containing paper and/or activated carbon that traps and

removes contaminants from synthetic solvent.

2. "Dry to dry unit": Dry cleaning equipment which

combines the functions washing and drying in one unit

and where articles to be cleaned are placed in the unit

and are not removed until the drying cycle is complete.

3. "Dry weight of articles cleaned": The weight of

articles prior to being cleaned in synthetic solvent.

4. "Drying cabinet": Dry cleaning equipment consisting

of an enclosure in which articles are hung to dry and

used only to dry articles which would be damaged by the

heat and tumbling action of a drying tumbler.

5. "Drying tumbler": Dry cleaning equipment used to dry

articles which have been previously cleaned in

synthetic solvent.

6. "Sealed container": A container used to store dry

cleaning solvent or waste that has a tight fitting lid

and walls which are impervious to the solvent

7. "Solvent liquid leak": Any liquid synthetic solvent

leak of more than 3 drops per minute.

8."Solvent vapor leak": Any synthetic solvent leak

which is a visible mist or which causes an appropriate

analyzer sampling one centimeter from the source to

register more than 100 ppm, as methane.

9. "Synthetic solvent": Any halogenated solvent

including, but not limited to, perchloroethylene,

1,1,1,trichloroethane and trichlorotrifluoroethane

(CFC-113).

10. "Synthetic solvent dry cleaning operation": Any

operation using synthetic solvent for the cleaning of

fabrics or leather. The operation includes, but is not

limited to washers, dryers, filters, stills, holding

tanks, pumps, attendant piping and valves.

J. Compliance Schedule

Any person that operates a synthetic solvent dry cleaning

operation subject to the requirements of subsection C.8

shall install a temperature gauge on the condenser outlet

duct, no later than March 4, 1991.