West Virginia Code of State Rules › Agency 64 - Health › Title 64 - LEGISLATIVE RULE WEST VIRGINIA DEPARTMENT OF HEALTH AND HUMAN RESOURCES › Series 64-22 - Solid Waste Disposal (Transferred To DNR Title 47-38 6/10/83 ) › Section 64-22-5 - Installation and Operation Requirements

Current through Register Vol. XLI, No. 28, July 12, 2024
5.1. Only the front or customer side of the
				dry cleaning machine shall be exposed in the customer area. Access doors to the
				maintenance area shall be kept locked.
5.2. The maintenance area shall be separated
				from the front of the machine by suitable partitions.
5.3. As a means of minimizing any solvent
				build-up in the customer area and also to control any minor solvent leakage,
				mechanical exhaust ventilation shall be installed to maintain air
				concentrations of the solvent at less than 0.4 of the applicable Threshold
				Limit Value established by the American Conference of Governmental Industrial
				Hygienists in the customer area.
This exhaust ventilation shall be provided on a continuous
				  basis while the establishment is open for business. The fan motor wiring shall
				  be such that the dry cleaning equipment cannot be operated unless the fan
				  system is in operation.
Although the performance criterion above may be met, in a
				  well-maintained and properly-operated establishment, by considerably lower
				  ventilation rates, the following are offered at the maximum which should be
				  necessary:
No. of Machines
Air Flow Per Machine (cfm)
1-3
500
4-8
400
9-16
375
17 or more
360
5.4.
				Grille openings are to be installed in the partition to facilitate air movement
				and should be sized on the basis of 500 cfm per square foot of net grille area.
				Grilles shall be placed as close to the machines as possible, preferably near
				the base or just above the machines.
5.5. One or more general ventilation fans,
				wired independently, shall be provided to exhaust air from the maintenance area
				to the outside if the event of accidental solvent vapor dispersion. Air flow of
				at least 1000 cfm per machine shall be exhausted when these fans and those
				required by Section 5.3 are operated simultaneously.
5.6. The cleaning equipment must be provided
				with an exhaust system which maintains a minimum of 100 feet per minute face
				velocity through the loading door whenever the door is open. The ductwork
				connections from this system must be sealed (soldered or taped) and the
				discharge stack extended to a height above the highest point of the roof
				line.
5.7. A satisfactory means of
				preventing liquid leaks from escaping the enclosure must be provided. This
				shall include some method of "diking" the floor of the enclosure or machine
				base to hold a liquid volume equal to the maximum quantity of solvent which
				might possibly escape from a single system. Some means must be provided for
				draining solvent in the event of a leak and containment. This can be done by
				gravity flow with the solvent transferred to a standby holding tank. This tank
				shall be vented to the outside.
5.8. The establishment shall be checked twice
				weekly and kept in good repair. All maintenance personnel must be familiar with
				necessary machine repairs and instructed as to the solvent hazards.
5.9. A supply of make-up air (heated to at
				least 60 F.) equal to or greater than the total volume of air exhausted from
				the plant shall be provided in order to eliminate any negative pressure
				conditions which might otherwise develop. The emergency ventilation capacity
				required in Section 5.5 need not be considered as part of the total volume of
				air exhausted from the plant.
5.10. Exhaust ventilation stacks from dry
				cleaning machines shall be located as far as possible from combustion air or
				dryer air intakes. (The concentration of solvent vapor in combustion air shall
				not exceed 5 parts per million parts of air.)
5.11. Use of devices or substances which are
				intended to mask the solvent odor shall be prohibited.
5.12. Detailed installation, operation, and
				maintenance manuals for equipment must be made available to authorized
				representative of agencies having jurisdiction over the installation.
5.13. Warning Signs - Instructions posted on
				machines or within the establishment shall include warnings as to the potential
				dangers associated with cleaning solvents and information as to articles which
				should not be cleaned because they might retain solvent.
5.14. Emergencies - A trained operator shall
				be available or on call as long as the premises are open for business. A
				telephone shall be listed for emergency assistance.