Ala. Admin. Code r. 335-3-6-.45

Current through Register Vol. 43, No. 1, October 31, 2024

Section 335-3-6-.45 - Large Petroleum Dry Cleaners

(1) Except as otherwise required by the context, terms used in this Rule are defined in Rule 335-3-1-.02 or in this paragraph, as follows:

(a) "Cartridge Filter" means perforated canisters containing filtration paper and/or activated carbon that are used in a pressurized system to remove solid particles and fugitive dyes from soil-laden solvent.

(b) "Containers and Conveyors of Solvent" means piping, ductwork, pumps, storage tanks, and other ancillary equipment that are associated with the installation and operation of washers, dryers, filters, stills, and settling tanks.

(c) "Dry Cleaning" means a process for the cleaning of textiles and fabric products in which articles are washed in a nonaqueous solution (solvent) and then dried by exposure to a heated air stream.

(d) "Perceptible Leaks" means any petroleum solvent vapor or liquid leaks that are conspicuous from visual observation; such as pools or droplets of liquid, or buckets or barrels of solvent or solvent-laden waste standing open to the atmosphere.

(e) "Petroleum Solvent" means organic material produced by petroleum distillation comprising a hydrocarbon range of 8 to 12 carbon atoms per organic molecule that exists as a liquid under standard conditions.

(f) "Solvent Recovery Dryer" means a class of dry cleaning dryers that employs a condenser to liquefy and recover solvent vapors evaporated in a closed-loop, recirculating stream of heated air.

(2)Applicability. This Rule shall apply to petroleum solvent washers, dryers, solvent filters, settling tanks, vacuum stills, and other containers and conveyors of petroleum solvent that are used in petroleum solvent dry cleaning facilities that consume 123,026 liters (32,500 gallons) or more of petroleum solvent annually.

(3)Standards.

(a) Each owner or operator of a petroleum solvent dry cleaning dryer shall either:

1. limit VOC emissions to the atmosphere to 3.5 kilograms (7.7 lbs) of volatile organic compounds per 100 kilograms (220 lbs) dry weight of articles dry cleaned; or

2. install and operate a solvent recovery dryer in a manner such that the dryer remains closed and the recovery phase continues until a final recovered solvent flow rate of 50 milliliters (1.7 oz) per minute is attained.

(b) Each owner or operator of a petroleum solvent filtration system shall either:

1. reduce the volatile organic compound content in all filtration wastes to 1.0 kilogram (2.2 lbs) or less per 100 kilograms (220 lbs) dry weight of articles dry cleaned, before disposal, and exposure to the atmosphere, or

2. install and operate a cartridge filtration system, and drain the filter cartridges in their sealed housings for 8 hours or more before their removal.

(c) Each owner or operator shall repair all petroleum solvent vapor and liquid leaks within 3 working days after identifying the sources of the leaks. If necessary repair parts are not on hand, the owner or operator shall order these parts within 3 working days, and repair the leaks no later than 3 working days following the arrival of the necessary parts.

(4)Testing and Monitoring.

(a) To be in compliance with subparagraph (3)(a)l. of this Rule the owner or operator shall:

1. calculate, record, and report to the Director the weight of volatile organic compounds vented from the dryer emission control device calculated by using EPA Reference Methods 1, 2, and 25A of 40 CFR 60 with the following specifications:

(i) field calibration of the flame ionization analyzer with propane standards;

(ii) laboratory determination of the ratio of the flame ionization analyzer response to a given parts per million by volume concentration of propane to the response to the same parts per million concentration of the volatile organic compounds to be measured; and

(iii) determination of the weight of volatile organic compounds vented to the atmosphere by:

(I) the multiplication of the ratio determined in subparagraph (a)1.(ii) of this paragraph by the measured concentration of volatile organic compound gas (as propane) as indicated by the flame ionization analyzer response output record;

(II) the conversion of the parts per million by volume value calculated in subparagraph (a)1.(iii)(I) of this paragraph into a mass concentration value for the volatile organic compounds present; and

(III) multiply the mass concentration value calculated in subparagraph (a)1.(iii)(II) of this paragraph by the exhaust flow rate determined by using EPA Reference Test Methods 1 and 2;

2. calculate, record, and report to the Director the dry weight of articles dry cleaned; and

3. repeat subparagraphs (a)1. and 2. above for normal operating conditions that encompass at least 30 dryer loads, which total not less than 1,800 kg dry weight, and represent a normal range of variations in fabrics, solvents, load weights, temperatures, flow rates, and process deviations.

(b) To determine compliance with subparagraph (3)(a)2. of this Rule, the owner or operator shall verify that the flow rate of recovered solvent from the solvent recovery dryer at the termination of the recovery phase is no greater than 50 milliliters (1.7 oz) per minute. This one-time procedure shall be conducted for a duration of no less than two weeks during which no less than 50 percent of the dryer loads shall be monitored for their final recovered solvent flow rate. The suggested point for measuring the flow rate of recovered solvent is from the solvent-water separator. Near the end of the recovery cycle, the flow of recovered solvent should be diverted to a graduated cylinder. The cycle should continue until the minimum flow of solvent is 50 milliliters (1.7 oz) per minute. The type of articles cleaned and the total length of the cycle should then be recorded.

(c) To be in compliance with subparagraph (3)(b)1. of this Rule the owner or operator shall:

1. calculate, record, and report to the Director the weight of volatile organic compounds contained in each of at least five 1.0 kilogram (2.2 lbs) samples of filtration waste material taken at intervals of at least 1 week by employing ASTM Method D322-80 (Standard Test Method for Gasoline Diluent in Used Gasoline Engine Oils by Distillation);

2. calculate, record, and report to the Director the total dry weight of articles dry cleaned during the intervals between removal of filtration waste samples, as well as the total mass of filtration waste produced in the same period; and

3. calculate, record, and report to the Director the weight of volatile organic compounds contained in filtration waste material per 100 kilograms (220 lbs) dry weight of articles dry cleaned.

(d) Compliance with subparagraph (3)(c) of this Rule requires that each owner or operator make weekly inspections of washers, dryers, solvent filters, settling tanks, vacuum stills, and all containers and conveyors of petroleum solvent to identify perceptible volatile organic compound vapor or liquid leaks.

Author:

Ala. Admin. Code r. 335-3-6-.45

Effective Date: June 9, 1987. Amended: Effective Date: July 31, 1991. Amended: Filed October 17, 1996; effective November 21, 1996.

Statutory Authority:Code of Ala. 1975, §§ 22-28-14, 22-22A-5, 22-22A-6, 22-22A-8.