§ 129.63b. Control of VOC emissions from large petroleum dry cleaning facilities.
(a) Applicability. This section applies Statewide to the owner and operator of a petroleum solvent washer, dryer, solvent filter, settling tank, vacuum still and other containers and conveyors of petroleum solvent that are used in petroleum dry cleaning facilities that consume 123,000 liters (32,493 gallons) or more of petroleum solvent annually.
(b) Definitions. The following words and terms, when used in this section, have the following meanings, unless the context clearly indicates otherwise:
Cartridge filter—A perforated canister containing filtration paper or activated carbon, or both, that is used in a pressurized system to remove solid particles and fugitive dyes from soil-laden solvent.
Consume—The amount of petroleum solvent purchased less the amount of petroleum solvent sent for disposal or returned for recycling during a calendar year.
Containers and conveyors of solvent—Piping, ductwork, pumps, storage tanks and other ancillary equipment that are associated with the installation and operation of petroleum dry cleaning washers, dryers, filters, stills and settling tanks.
Dry cleaning—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.
Perceptible leak—A petroleum solvent vapor or liquid leak that is conspicuous from visual observation. The term includes the following:(i) A pool or droplet of petroleum solvent liquid.
(ii) A bucket or barrel of petroleum solvent or petroleum solvent-laden waste standing open to the atmosphere.
Petroleum solvent—A group of organic materials 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.
Petroleum solvent recovery dryer—A class of dry-cleaning dryers that employs a condenser to liquify and recover petroleum solvent vapors evaporated in a closed-loop, recirculating stream of heated air.(c) Emission limitations.
(1) The owner and operator of a petroleum dry cleaning dryer shall do one of the following:
(i) Limit VOC emissions to the atmosphere to an average of 3.5 kilograms (kg) of VOC per 100 kg dry weight of articles dry cleaned.
(ii) Install and operate a petroleum solvent recovery dryer in a manner that the dryer remains closed and the recovery phase continues until a final recovered solvent flow rate of 50 milliliters per minute is attained.
(2) The owner or operator of a petroleum solvent filtration system shall do one of the following:
(i) Reduce the VOC content in filtration wastes to 1.0 kg or less per 100 kg dry weight of articles dry cleaned, before disposal and exposure to the atmosphere.
(ii) Install and operate a cartridge filtration system and drain the filter cartridges in their sealed housings for 8 hours or more before their removal.
(3) The owner or operator of a petroleum dry cleaning dryer or petroleum solvent filtration system shall repair a petroleum solvent vapor or liquid leak within 3 working days after identifying the source of the leak.
(i) If the necessary repair part is not on hand to perform the repair, the owner or operator shall order the part within 3 working days following identification of the source of the leak.
(ii) The owner or operator shall repair the identified leak no later than 3 working days following the arrival of the necessary repair part ordered under subparagraph (i).
(d) Compliance monitoring and testing requirements. The owner or operator of a petroleum dry cleaning operation subject to this section shall demonstrate compliance as follows.
(1) To determine compliance with subsection (c)(1)(i), the owner or operator shall do the following:
(i) Calculate the weight of VOC vented from the dryer emission control device using EPA Reference Test Methods 1, 2 and 25A, with the following specifications:
(A) Field calibration of the flame ionization analyzer with propane standards.
(B) 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 VOC to be measured.
(C) Determination of the weight of VOC emissions vented to the atmosphere by performing the following:
(I) Multiplying the ratio determined in clause (B) by the measured concentration of VOC gas (as propane) as indicated by the flame ionization analyzer response output record.
(II) Converting the parts per million by volume value calculated in subclause (I) into a mass concentration value for the VOCs present.
(III) Multiplying the mass concentration value calculated in subclause (II) by the exhaust flow rate determined by using EPA Reference Test Methods 1 and 2.
(ii) Calculate the dry weight of articles dry cleaned.
(iii) Repeat subparagraphs (i) and (ii) for normal operating conditions that encompass at least 30 dryer loads which meet the following:
(A) Total not less than 1,800 kg dry weight.
(B) Represent a normal range of variations in fabrics, solvents, load weights, temperatures, flow rates and process deviations.
(2) To determine compliance with subsection (c)(1)(ii), 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 per minute by performing the following steps:
(i) Conducting a one-time procedure for a duration of no less than 2 weeks that:
(A) Monitors at least 50% of the dryer loads for their final recovered solvent flow rate.
(B) Measures the flow rate of recovered solvent from the solvent-water separator.
(I) Near the end of the recovery cycle, the flow of recovered solvent should be diverted to a graduated cylinder.
(II) Continue the cycle until the flow rate of the solvent is 50 milliliters per minute.
(ii) Recording the type of articles cleaned and the total length of the cycle measured in subparagraph (i).
(3) To determine compliance with subsection (c)(2)(i) and (ii), the owner or operator shall do the following:
(i) Calculate the weight of VOCs contained in each of five 1-kg samples of filtration waste material taken at intervals of 1 week, using ASTM Method D322-97 (Standard Test Method for Gasoline Diluent in Used Gasoline Engine Oils by Distillation).
(ii) Calculate 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.
(iii) Calculate the weight of VOCs contained in filtration waste material per 100 kg dry weight of articles dry cleaned.
(4) To determine compliance with subsection (c)(3), the owner or operator shall perform weekly inspections of washers, dryers, solvent filters, settling tanks, vacuum stills and all containers and conveyors of petroleum solvent to identify a perceptible petroleum solvent vapor or liquid leak.
(e) Recordkeeping and reporting requirements. The owner or operator of a petroleum dry cleaning facility subject to this section shall maintain records sufficient to demonstrate compliance with this section, including:
(1) Records of the weight of VOC emissions vented from the dryer emission control device, calculated according to subsection (d)(1).
(2) Records of the dry weight of articles dry cleaned for use in the calculations in subsection (d)(1)—(3).
(3) Records of the weight of VOCs contained in the filtration waste samples required in subsection (d)(1)(i).
(4) Records of the weight of VOCs contained in the filtration waste material for each 220 lb (100 kg) dry weight of articles dry cleaned.
(f) Exemption. The owner or operator of a petroleum dry cleaning facility subject to subsection (a) claiming exemption from the requirements of subsections (c)—(e) shall maintain records of annual solvent consumption onsite for 5 years to demonstrate that the applicability threshold of subsection (a) has not been exceeded.
Authority The provisions of this § 129.63b added under section 5(a)(1) and (8) of the Air Pollution Control Act (35 P.S. § 4005(a)(1) and (8)).
Source The provisions of this § 129.63b added January 20, 2023, effective January 21, 2023, 53 Pa.B. 465.
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