06-096 C.M.R. ch. 125, § 2 - Definitions

For the purposes of this Chapter, the following definitions apply:

A. Ancillary Equipment. "Ancillary equipment" means the equipment used with a dry cleaning machine in a dry cleaning system including, but not limited to, emission control devices, pumps, filters, muck cookers, stills, solvent tanks, solvent containers, water separators, exhaust dampers, diverter valves, interconnecting piping, hoses, and ducts.

B. Calendar Year. "Calendar year" means a 12-month period starting January 1 and ending December 31 of each year.

C. Carbon Adsorber. "Carbon adsorber" means a device containing carbon as an adsorbent material used for the removal of perchloroethylene, an inlet and outlet for exhaust gases; and a system to regenerate or replace the saturated adsorbent.

D. Co-located. "Co-located" means a dry cleaner located in a building with a residence, a day care center, a health care facility, a prison, an elementary school, a middle or high school, a children's pre-school, a senior center, a youth center or other facility designed to be occupied by children or the elderly.

E. Condenser. "Condenser" means a recovery device that removes condensable vapors by a reduction in the temperature of the captured gases. A surface condenser affects condensation by indirect contact between the coolant and process gas stream, through use of a refrigerated condenser coil which contains coolant.

F. Construction. "Construction" means the fabrication (onsite), erection, or installation of a perchloroethylene dry cleaning system.

G. Control device. "Control device" means equipment (e.g. carbon adsorber, refrigerated condenser) used to reduce the amount of air pollutant(s) in an air stream prior to discharge to the ambient air.

H. Desorption. "Desorption" means regeneration of a carbon adsorber by removal of the perchloroethylene adsorbed on the carbon.

I. Diverter valve. "Diverter valve" means a flow control device that prevents room air from passing through a refrigerated condenser when the door of the dry-cleaning machine is open.

J. Dry cleaner. "Dry cleaner" means a facility engaged in the cleaning of garments in perchloroethylene by means of one or more washes in the solvent, extraction of the solvent by spinning, and drying by tumbling in an air stream. The facility includes, but is not limited to any washer, dryer, emission control device(s), exhaust dampers, diverter valves, filter purification system, waste disposal system, stills, holding tank, muck cooker, water separators, filters, solvent containers, pump and attendant piping, hoses, ducts and valves.

K. Dry-cleaning drum. "Dry-cleaning drum" means the perforated container inside the dry-cleaning machine that holds the articles during dry-cleaning.

L. Dry cleaning system. "Dry cleaning system" means a dry cleaning machine and its ancillary equipment.

M. Dryer. "Dryer" means a machine used to remove perchloroethylene from articles by tumbling them in a heated air stream.

N. Dry-to-dry machine. "Dry-to-dry machine" means a one-machine dry cleaning operation in which washing and drying are performed in the same machine.

O. Exhaust damper. "Exhaust damper" means a flow control device that prevents the air-perchloroethylene gas-vapor stream from exiting the dry-cleaning machine into a carbon adsorber before room air is drawn into the dry-cleaning machine.

P. Filter. "Filter" means a porous device through which perchloroethylene is passed to remove contaminants in suspension. Examples include, but are not limited to, lint filter (button trap), cartridge filter, tubular filter, regenerative filter, prefilter, polishing filter, and spin disc filter.

Q. Garment. "Garment" means any article placed in the washer for purposes of cleaning that article.

R. Halogenated hydrocarbon detector. "Halogenated hydrocarbon detector" means a portable device capable of detecting vapor concentrations of perchloroethylene of 25 parts per million by volume and indicating a concentration of 25 parts per million by volume or greater by emitting an audible or visual signal that varies as the concentration changes.

S. Heating coil. "Heating coil" means the device used to heat the air stream circulated from the dry cleaning machine drum, after perchloroethylene has been condensed from the air stream and before the stream re-enters the dry cleaning machine drum.

T. Major Source. "Major source" means a source whose twelve-month rolling total consumption of perchloroethylene exceeds 2100 gallons.

U. Muck cooker. "Muck cooker" means a device for heating perchloroethylene-laden waste material to volatilize and recover perchloroethylene.

V. Perchloroethylene or perc or tetrachloroethylene or PCE. "Perchloroethylene" or "perc" or "tetrachloroethylene" or "PCE" means a colorless volatile chlorinated hydrocarbon with a chemical formula of C2Cl4 and a CAS (Chemical Abstract System) Registry number of 127-18-4.

W. Perchloroethylene consumption. "Perchloroethylene consumption" means the twelve-month rolling total volume (sum) of perchloroethylene purchased based upon monthly purchase receipts or other reliable measures.

X. Perchloroethylene Consumption Limit. "Perchloroethylene consumption limit" means a dry-cleaner's highest twelve-month rolling total perchloroethylene consumption, as calculated according to subsection 6(A)(2).

Y. Perchloroethylene gas analyzer or PCE gas analyzer."Perchloroethylene gas analyzer" or "PCE gas analyzer"means a flame ionization detector, photoionization detector, or infrared analyzer capable of detecting vapor concentrations of perchloroethylene of 25 parts per million by volume.

Z. Reclaimer. "Reclaimer" means a machine used to remove perchloroethylene from articles by tumbling them in a heated air stream.

AA. Refrigerated condenser. "Refrigerated condenser" means a vapor recovery system into which an air-perchloroethylene gas-vapor stream is routed and the perchloroethylene is condensed by cooling the gas-vapor stream.

BB. Refrigerated condenser coil. "Refrigerated condenser coil" means the coil containing the chilled liquid used to cool and condense the perchloroethylene.

CC. Residence. "Residence" means any dwelling or housing in which people reside.

DD. Still. "Still" means any device used to volatilize and recover perchloroethylene from contaminated perchloroethylene.

EE. Temperature sensor. "Temperature sensor" means a thermometer or thermocouple used to measure temperature.

FF. Twelve-month Rolling Total. "Twelve-month rolling total" means the total perchloroethylene consumed during any consecutive 12-month period.

GG. Vapor leak. "Vapor leak"means a perchloroethylene vapor concentration exceeding 25 parts per million by volume (50 parts per million by volume as methane) as indicated by a halogenated hydrocarbon detector or perchloroethylene gas analyzer.

HH. Washer. "Washer" means a machine used to clean articles by immersing them in perchloroethylene.

II. Water separator. "Water separator" means any device used to recover perchloroethylene from a water-perchloroethylene mixture.

Notes

06-096 C.M.R. ch. 125, § 2