STATE OF RHODE ISLANDAND PROVIDENCE PLANTATIONS DEPARTMENT OF ENVIRONMENTAL MANAGEMENT

OFFICE OF AIR RESOURCES 

### AIR POLLUTION CONTROL REGULATION NO . 36 CONTROL OF EMISSIONS FROM ORGANIC SOLVENT CLEANING

Effective 8April 1996 Final Mark-up October 2008Amendments

AUTHORITY: These regulations are authorized pursuant to R .I . Gen. Laws § 42- 17.1-2(s) and 23-23, as amended, and have been promulgated pursuant to the procedures set forth in the R .I . Administrative Procedures Act, R .I . Gen. Laws Chapter 42-35 .RHODE ISLAND DEPARTMENT OF ENVIRONMENTAL MANAGEMENT OFFICE OF AIR RESOURCES AIRPOLLUTIONCONTROL REGULATION NO . 36 CONTROL OF EMISSIONS FROM ORGANICSOLVENT CLEANING TABLE OF CONTENTS 36.1 Definitions. .. .. .. .. .. .. .. .. .. .. . . . . .. . . . . . .. .. .. .. .. .. . . .. .. .. . .. . . . . .. . . .. .. .. .. . . .. .. .. .. .. . . . . .. . . .. . . .. .. .. .. .. .. .. .. .. . . . . . . . . .. . .. . . . . . .. .. .. . . . . . . . . . .1

36.2 Applicability . .. .. . . . . .. .. .. .. . . . . .. . . .. . .. . . . . .. . . .. .. .. .. .. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . .. . . .. . . . . .. . . .. .. .. .. .. .. . . . . . . . . .. .. . . .. . . .. .. .. . . . . . . . . . .5 36.3 Compliance Schedule .. .. .. .. .. .. .. .. .. . . . . . . . .. .. .. .. .. . . . . . . . . . . . .. .. .. . . .. . . .. .. .. .. .. . . .. . . .. . . . . . . . . . . . .. .. .. .. .. . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . .5 36.4 General Requirements . .. .. . . .. .. .. .. . . . . . . . . . . . .. .. .. .. . . . . . . . . .. . .. . . .. . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . .. .. .. .. .. . . . . .. .. .. .. .. .. .. .. . . . . . . . . . . . . .5 36.5 Requirements for Batch Cold Cleaning Operations .. . . . . . . . . . . . .. .. .. .. . . .. .. .. .. .. . . . . . . . . . .. .. .. .. .. .. .. .. .. . . .. .. .. .. . . . . . . . . . . . . . .7 36.6 Requirements for Batch Vapor Cleaning Operations With Solvent/Air Interfaces .. . . . . . . .. .. .. . . . . . . . . .. .. .. . . . . . . . . .8 36 .7 Requirements for In-line Cleaning Operations . .. .. .. .. .. .. .. .. .. .. . . . . .. . . .. . .. .. .. . . .. .. .. .. .. .. . . . . . . . . . . . .. .. .. . . . . . . . . .. .. .. . . . . . . .1 l 36.8 Requirements for BatchVapor Cleaning Operations Without Solvent/Air Interfaces . . . .. .. .. .. .. .. .. .. . .. . . . . .14-1-3 36.9 36.10 36.11 Compliance Specifications and Monitoring Requirements .. . . . . .. .. .. .. .. . . . . .. . . . .. .. .. .. . . .. . . . . .. . .. . . . .. . . . . .. . . .. .. .. . . . . . . .15

Recordkeeping . . . . . . . . .. . . . . . . . . . . . . .. .. .. .. . . .. . . . . . . . .. .. .. .. . . . . . . .. . . . . .. . . . . . . . . .. .. .. .. .. . . . . .. . . . . .. .. .. . . .. .. .. .. .. . . .. .. .. .. .. . . .. .. .. . . . . . . .18 Reporting Requirements. . .. .. . . . .. .. .. .. . . .. .. .. .. . .. .. .. .. .. . . . . .. .. .. . .. . . . . . . . . .. .. .. .. .. .. .. .. . . . .. .. .. .. .. .. . . . . . . . .. . . . . . . . . . .. . . .. .. .. . . .2120 36.12 Exemption from Automated Parts Handling System Requirement. .. .. .. . . .. . . .. .. .. .. .. .. . . .. . .. .. .. . . .. . . . ... . . . . . . . . . . .26 36 .13 General Provisions .. .. .. .. .. .. .. .. .. . . .. . . . . . . . .. .. .. .. .. . . . . . . . . . .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . .. .. .. .. .. .. . . . . . . . .. .. .. .. . . . . .. .. .. .. . . .. . . . . . . . . . . .28Appendix A .. . .. . . .. . . .. .. .. .. .. . . . ... . . . .. .. .. .. .. . . .. . . . . . . . .. .. .. .. .. . .. . . .. .. .. .. .. .. . . .. .. .. .. . .. .. .. .. .. .. . . .. . . . . .. .. .. .. . . .. .. .. . . . . .. . . . . . . . . . .30 Answers.. .. .. . . .. . . .. . . .. .. .. .. .. .. . . .. .. . . . . .. .. .. .. .. .. .. .. . . .. .. .. .. .. .. .. . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . .. .. .. .. .. .. . . . . . . . .. .. .. .. .. .. .. .. .. . . . . .33RHODE ISLAND DEPARTMENT OF ENVIRONMENTAL MANAGEMENT OFFICE OF AIRRESOURCES AIR POLLUTION CONTROL REGULATION NO . 36 CONTROL OF EMISSIONS FROM ORGANICSOLVENT CLEANING 36. Control of Emissions fromOrganic Solvent Cleaning 36.1 Definitions

Unless otherwise expressly defined in this section, the terms used in this regulation shall be defined by reference to the Rhode Island Air Pollution Control General Definitions Regulation. As used in this regulation, the following terms shall, where the context permits, be construed as follows: 36.1 .1 "Air Blanket" means the layer of air inside a solvent cleaning machine

above the solvent/air interface. The centroid of the air blanket is equidistant fromthe sides ofthe machine. 36.1 .2 "Automated Parts Handling System" means a mechanical

device that carries all parts and parts baskets through the cleaning cycle at a controlled speed fromthe initial loading of contaminated or wet parts cold cleaning through the removal of the cleaned or dried parts. Automated parts handling systems include, but are not limited to, hoists and conveyors. 36.1 .3 "Batch Cleaning" means the process in which individual parts or

a set of parts move through an entire cleaning cycle before new parts are introduced into the solvent cleaning machine. 36.1 .4 "Carbon Adsorber" means a bed of activated carbon which

adsorbs solvent froman air-solvent gas-vapor stream . 36.1 .5 "Clean Liquid Solvent" means fresh unused solvent, recycled

solvent, or used solvent that has been cleaned of contaminants (e.g., skimmed of oils or sludge and strained of metal chips) . 36.1 .6 "Cleaning Capacity" means, for a cleaning machine without a

solvent/air interface, the maximum volume ofparts that can be cleaned at one time. In most cases, the cleaning capacity is equal to the volume (length times width times height) of the cleaning chamber. Page 1 of 3336.1 .7 "Cold Cleaning" means an organic solvent cleaning process which cleans and removes contaminants or water fromsurfaces by spraying, brushing, flushing, immersing, or drying parts. Cleaning machines that use heated, nonboiling solvent to clean the parts are classified as cold cleaning machines. Wipe cleaning is not included in this definition. 36.1 .8 "Dwell" means the technique of holding parts within the

freeboard zone but above the vapor zone of the solvent cleaning machine. Dwell is used after cleaning to allow solvent to drain fromparts or parts baskets back into the solvent cleaning machine . 36.1 .9 "Dwell Time" is the amount oftime that a part dwells in the

freeboard zone of the solvent cleaning machine. 36.1 .10 "Emission" means the release or discharge, directly or indirectly,

of one or more air pollutants into the air. 36.1 .11 "Freeboard Height" means; for a batch cleaning machine, the

distance fromthe solvent/air interface, measured during the idling mode, to the top of the cleaning machine; for an in-line cleaning machine, it is the distance fromthe solvent/air interface to the bottom of the entrance or exit opening, whichever is lower, as measured during the idling mode. 36.1 .12 "Freeboard Ratio" means the freeboard height divided by the

width of the smaller interior dimension of the organic solvent cleaning machine

. 36.1 .13 "Freeboard Zone" means; for a batch cleaning machine, the

zone within the solvent cleaning machine that extends fromthe solvent/air interface to the top ofthe solvent cleaning machine; for an in-line cleaning machine, it is the zone within the solvent cleaning machine that extends fromthe solvent/air interface to the bottom of the entrance or exit opening, whichever is lower. 36.1 .14 "Hazardous Air Pollutant" means any pollutant which has been

listed pursuant to Section 112(b) of the Clean Air Act Amendments of 1990 or which is listed in Table 1 of Rhode Island Air Pollution Control Regulation No. 22. 36.1 .15 "Idling Mode" means the time period when a solvent cleaning

machine is not actively cleaning parts and the sump heating coils,

Page 2 of 33if present, are turned on. 36.1 .16 "In-line Cleaning" means an organic solvent cleaning machine

that uses an automated parts handling system, typically a conveyor, to automatically provide a continuous supply ofparts to be cleaned. These units are fully enclosed except for the conveyor inlet and exit openings. In-line cleaning machines can be either cold or vapor cleaning machines. 36.1 .17 "Leakproof Coupling" means athreaded or other type of

coupling that prevents solvents fromleaking while filling or draining solvent to and fromthe solvent cleaning machine. 36.1 .18 "Lip Exhaust" means a device installed at the top ofthe opening

of a solvent cleaning machine that draws air and solvent vapor fromthe freeboard zone and removes the air and vapor fromthe solvent cleaning area. 36.1 .19 "Open TopArea" means the solvent/air interface area which is

open to the atmosphere during operations . 36.1 .4-920 "Organic Solvent Cleaning" means the process of cleaning

contaminants or water fromsurfaces by cold cleaning or vapor cleaning using Volatile Organic Compounds (VOC) or volatile Hazardous Air Pollutants. 36.1 .2021 "Primary Condenser" means a series of cooling coils on a vapor

cleaning machine through which a chilled substance is circulated to provide continuous condensation of rising solvent vapors and, thereby, create a concentrated solvent vapor zone. 36.1 .2422 "Refrigerated Freeboard Chiller" means a control device

mounted above the primary condenser coils consisting of secondary coils which carry a refrigerant to provide a chilled air blanket above the solvent vapor to reduce emissions fromthe solvent cleaning machine. 36.1 .2-223 "Remote-Reservoir Cold Cleaning" means cold cleaning using

equipment which pumps liquid solvent to a sink-like work area and then drains the solvent back into an enclosed container while parts are being cleaned, allowing no solvent to pool in the work area. 36 .1 .2-324 "Solvent/Air Interface" means, for a vapor cleaning machine, Page 3 of 33the location of contact between the concentrated solvent vapor layer and the air. If this location cannot be determined, it is assumed to be at the mid-line height of the primary condenser coils. For a cold cleaning machine, it is the location of contact between the liquid solvent and the air. 36.12425 "Solvent Cleaning Machine" means any device or piece of

equipment that uses solvent liquid orvapor to remove contaminants fromthe surfaces ofmaterials. Types of solvent cleaning machines include, but are not limited to, batch vapor, in-line vapor, in-line cold, and batch cold solvent cleaning machines. 36.1 .2-526 "Solvent Vapor Zone" means; for a vapor cleaning machine, the

zone that extends fromthe liquid solvent surface to the level that solvent vapor is condensed. This condensation level is defined as the midline height of the primary condenser coils. 36.1 .27 "Special and extreme solvent metal cleaning" means the use of

a cold cleaning unit to clean metal parts where such metal parts are used in any of the following applications: (a) Research, development, manufacture and rework of electronic parts, assemblies, boxes, wiring harnesses, sensors and connectors used in aerospace service; or (b) Research, development, manufacture and rework of high precision products for which contamination must be minimized in accordance with a customer or other specification. 36.11628 "Sump" means the part of a solvent cleaning machine where the

liquid solvent is located. 36.1 .2-7-_29 "Superheated Vapor System" means a systemthat heats solvent

vapor to a temperature above the solvent's boiling point . Parts are held (dwell) in the superheated vapor to evaporate the liquid solvent on thembefore exiting the machine. Hot vapor recycle is an example of a superheated vapor system . 36.1 .2,830 "Vapor Cleaning" means an organic solvent cleaning process in

which contaminants or water are cleaned and removed from surfaces by condensing hot solvent vapor on the colder pieces. This definition includes vapor degreasing and drying. 36.1 .2-931 "Working Mode" means the time period when the solvent Page 4of 33cleaning machine is actively cleaning parts.

36 .2 Applicability 36.2.1 The provisions ofthis regulation apply to any person whoowns, leases, operates, or controls an organic solvent cleaning machine. 36.2.2 Wherever the term"Volatile Organic Compound" or "VOC" appears in Subsection 36.1 .18 or Sections 36.2 through 36.12, read this to mean "Volatile Organic Compounds and Halogenated Organic Compounds" or "VOC and HOC" . 36.2.3 The requirements in this regulation supersede the requirements in Air Pollution Control Regulation No. 18, entitled "Control of Emissions fromOrganic Solvent Cleaning" . Afacility must continue to complywith Regulation No. 18 until the applicable compliance date for the provisions ofthis regulation, as specified in Section 36.3. 36.2.4The requirements in Section 36.5 shall not applyto any cold cleaning unit that uses a solvent which contains no more than 5% VOCor Vvolatile HAP by weight . 36.3 Compliance Schedule Unless otherwise specified compliance with the provisions of this regulation shall be achieved by the following dates: (a) Solvent cleaning machines that commenced construction or reconstruction before November 29, 1993, shall achieve compliance with this regulation by January 1, 1997. (b) Solvent cleaning machines that commenced construction or reconstruction on or after November 29, 1993, shall achieve compliance with this regulation immediately upon startup or by April 8, 1996, whichever is later. (c) Any batch vapor cleaning machine with a solvent/air interface that uses trans 1 2-dichloroethene or n-propyl bromide shall achieve compliance with subsections 36.6.3 36.6.6 and 36.6.7 ofthis regulation immediately upon first use of that solvent or by [the date six months after effective date ofthe amendments], whichever is later. 36.4 General Requirements 36.4.1 Equipment covers and dipping or rotating baskets must be constructed of Page 5 of 33nonporous or nonabsorbent material . Covers must forma tight seal with the sides of the solvent cleaning machine and have no gaps or holes. 36.4.2 When the solvent cleaning machine cover is open, drafts at the same elevation as the tank lip must not be greater than 40 m/min. (130 ft/min.) when measured 1 to 2meters (3 to 7 feet) upwind. 36.4.3 Leaks must be repaired immediately or the solvent cleaning unit shut down. 36.4.4 Equipment used in solvent cleaning must display a conspicuous summary of proper operating procedures consistent with minimizing emissions of organic solvents. 36.4.5 Any solvent spray must be a solid, fluid stream, which is delivered at a pressure no greater than 10 pounds per square inch (psi) and which does not cause excessive splashing. For purposes of this regulation, no solvent sprayshall be an atomized or shower spray . 36.4.6 Spills shall be wiped up immediately . The wipe rags shall be stored in covered containers meeting the specifications in Subsection 36.4. 12. 36.4.7 No porous or absorbent materials, such as sponges, fabrics, wood, or paper products, shall be placed e4eaned in an organic cleaning machine. 36.4.8 Parts baskets or parts shall be drained under the cover and shall not be removed fromthe cleaning machine for at least 15 seconds or until dripping ceases and the pieces are visually dry, whichever is longer. 36.4.9 Parts having cavities or blind holes shall be tipped or rotated while draining before being removed fromthe vapor zone and shall be oriented for best drainage. 36.4.10 All parts shall be oriented for best drainage. 36.4.11When solvent is added to or drained froma solvent cleaning machine, the solvent shall be transferred using threaded or other leakproofcouplings and the end of the pipe in the solvent sump shall be located beneath the liquid solvent surface. 36.4.12Solvent, waste solvent, still bottoms, and sump bottoms must be stored in covered containers and waste solvent transferal or disposal must allowless than 20percent ofthe waste solvent (byweight) to evaporate into the atmosphere. _The closed containers may contain a device that allows for pressure relief, providing that the device does not allowliquid solvent to drain fromthe containers. 36.4.13Each solvent cleaning machine and related air pollution control equipment shall Page 6 of 33be maintained as recommended by the manufacturer ofthe equipment. 36.4.140perators must receive training in proper solvent cleaning procedures and, if requested by representatives of the Department or the EPAduring an inspection, must complete and pass the applicable sections of the test on those procedures in Appendix A

. 36.4.15 No work area fans shall be located and positioned so that they blowacross the opening of a solvent cleaning machine. 36.4.16 No degreaser units shall be located and positioned so that ventilation froman open window

blows across the opening of the solvent cleaning machine. 36.4.17 Facilitywide emissions of Hazardous Air Pollutants (HAPs) fromorganic solvent cleaning operations shall not exceed 1,500pounds of any one (1) HAPor 4,000pounds of any combination of HAPs per calendar month, based upon a 12 month rolling average unless a greater quantity of HAP emissions is allowed by an operating permit issued pursuant to Air Pollution Control Regulation No. 29. In no case shall emissions exceed the facility wide emission limits specified in 40 CFRPart 63.471 . 36.5 Requirements for Batch Cold Cleaning Operations 36.5.1 Cleaning machines shall be equipped with an attached cover that canbe operated easily with one hand. Covers must be closed at all times except during parts entry and removal . If the cold cleaning machine is equipped with a lip exhaust, the cover shall be located below the lip exhaust. 36.5.2 The solvent sump of aremote-reservoir batch cold cleaning machine must be equipped with a tight fitting cover that is kept closed at all times except during the cleaning of parts. 36.5.3 One of the following techniques shall be used to control solvent emissions from batch cold cleaning operations : (a) Afreeboard ratio greater than or equal to 0.75; or

(Eb) Another systemof equivalent control that is approved by the Director and the EPA

. Requests for equivalency determinations for control of cleaning machines installed before November 29, 1993 must be submitted no later Page 7 of 33than June 3, 1996 . Requests for equivalency determinations for control of cleaning machines installed on or after November 29, 1993 must be submitted and approved prior to startup of the cleaning machine. Requests shall include the following information: (1) Acomplete description of process and control equipment; (2) Testing procedures that will be used to demonstrate equivalency; and (3) The date, time and location of the equivalency test. 36.5.4 If a flexible hose or flushing device is used, flushing shall be performed only within the freeboard zone of the cold cleaning machine. 36.5.5 When an air- or pump-agitated solvent bath is used, the agitator shall be operated so that a rolling motion ofthe solvent is produced and splashing against the tank or parts being cleaned does not occur. 36.5.6 The height of solvent in a batch cold cleaner shall not exceed the manufacturer's fill-line for that machine. 36 .5.7 After April 1, 2009, no cold cleaning operation shall use a solvent with a vapor pressure equal to or greater than 1 .0 millimeters of mercury (mm Hg), measured at 20° C(68°F) . The following are exempt fromthis requirement : (a) Acold cleaning unit with an internal volume of l liter or less; (b) Acold cleaning unit used for special and extreme solvent cleaning as defined in Subsection 36.1 .27, with the Director's approval ; (c) Acold cleaning unit which cannot be operated safely using a solvent that complies with the vapor pressure limit in 36.5.7, with the Director's approval . (d) Acold cleaning unit operated in a permanent total enclosure equipped with an air pollution control systemwith an overall VOCremoval efficiency of90% or greater, with the Director's ap roval . 36 .6 Requirements for Batch Vapor Cleaning Operations With Solvent/Air Interfaces 36.6.1 Vapor cleaning machines shall be equipped with a cover that can be easily operated without disturbing the vaporzone and that is attached to the vapor cleaning machine. Covers must be closed at all times except during parts entry and removal . Covers must be free of cracks, holes and other defects. If the batch Page 8 of 33vapor cleaning machine is equipped with a lip exhaust, the cover must be located below the lip exhaust . 36.6.2 Each vapor cleaning machine shall be equipped with a primary condenser. 36.6.3 Each vapor cleaning machine, except those exempted as specified in Section 36.12, which uses a solvent containing trichloroethylene, perchloroethylene, 1,1,1-trichloroethane, methylene chloride, chloroform, trans 1,2-dichloroethene, n-propyl bromide, or carbon tetrachloride shall be equipped with an automated parts handling system, such as, but not limited to, a hoist or conveyor, that maintains a vertical conveyor speed of less than 2 inches per second (10 feet per minute) . 36.6.4 Each vapor cleaning machine must be equipped with the following safety switches : (a) Acondenser flowswitch and thermostat to shut offthe heat to the solvent if the condenser coolant is not circulating; and (b) Avapor level control thermostat to shut offthe heat when the vapor level rises above the height ofthe primary cooling coils; and (c) If the cleaning machine is equipped with a spray apparatus, a spray safety switch to shut off the spray pump if the vapor level drops more than 4 inches (10cm) fromthe bottomofthe primary condenser coil and to prevent spraying outside the vapor level ; and (d) Alow

solvent level safety switch to shut offthe heating element if it should become exposed . 36.6.5 Each vapor cleaning machine shall have a freeboard ratio of at least 0 .75. 36.6.6 Any vapor cleaning machine that has a solvent/air interface of 13 square feet (1 .21 square meters) or less and uses a solvent containing trichloroethylene, perchloroethylene, 1,1,1-trichloroethane, methylene chloride, chloroform, trans 1 2-dichloroethene, n-propyl bromide, or carbon tetrachloride must be equipped with one of the following control combinations: (a) Refrigerated freeboard chiller and superheated vapor system ; or (b) Refrigerated freeboard chiller and freeboard ratio of at least 1 .0; or (c) Refrigerated freeboard chiller and carbon adsorber; or (d) Refrigerated freeboard chiller and dwell ; or Page 9 of 33(e) Another systemof equivalent control that is approved by the Director and the EPA . Requests for equivalency determinations for control of cleaning machines installed before November 29, 1993 must be submitted no later than June 3, 1996. Requests for equivalency determinations for control of cleaning machines installed on or after November 29, 1993 must be submitted and approved prior to startup of the cleaning machine. Requests shall include the following information: (1) Acomplete description of process and control equipment; (2) Testing procedures that will be used to demonstrate equivalency; and (3) The date, time and location of the equivalency test . 36.6.7 Any vapor cleaning machine that has a solvent/air interface of greater than 13 square feet (1 .21 square meters) and uses a solvent containing trichloroethylene, perchloroethylene, 1,1,1-trichloroethane, methylene chloride, chloroform, trans 1,2-dichloroethene, n-propyl bromide, or carbon tetrachloride must be equipped with one of the following control combinations: (a) Refrigerated freeboard chiller, freeboard ratio of at least 1 .0, and superheated vapor system ; or (b) Refrigerated freeboard chiller, superheated vapor system, and carbon adsorber ; or (c) Another systemof equivalent control that is approved by the Director and the EPA . Requests for equivalency determinations for control ofcleaning machines installed before November 29, 1993 must be submitted no later than June 3, 1996

. Requests for equivalency determinations for control of cleaning machines installed on or after November 29, 1993 must be submitted and approved prior to startup of the cleaning machine. Requests shall include the following information: (1) Acomplete description of process and control equipment; (2) Testing procedures that will be used to demonstrate equivalency; and (3) The date, time and location ofthe equivalency test . 36.6.8 Pieces shall be held in the vapor zone for at least 30 seconds or until condensation ceases, whichever is longer. Page 10 of 3336.6.9 The workload shall not occupy more than half of the cleaning machine's open top area. 36.6.10 The vapor level shall not rise or drop more than 4 inches (10 cm) when the workload enters or is removed fromthe vapor zone. 36.6.11 Sprays shall be used onlywithin the vapor zone. 36.6.12 Cleaning machines shall be operated so that water cannot be visually detected in the solvent exiting the water separator. 36.6.13 Each cleaning machine that uses a lip exhaust shall be designed and operated to route all collected solvent vapors through a properly operated and maintained carbon adsorber that meets the requirements of Subsection 36.9.5. 36.6.14 The exhaust ventilation rate shall not exceed 20 m3/min per m2 (65 cfm per ft2) of solvent/air interface, unless necessary to meet OSHA requirements. If a carbon adsorber is used to meet the requirements of Subsection 36.6.6 or 36.6.7, the exhaust ventilation rate shall be at least 15 m3/min per m2 (50 cfm per ftZ) of solvent/air interface. 36.6.15 During startup of each vapor cleaning machine, the primary condenser shall be turned on before the sump heater . 36.6.16 During shutdown of each vapor cleaning machine, the sump heater shall be turned offand the solvent vapor layer allowed to collapse before the primary condenser is turned off . 36.6.17 To minimize solvent carry-out, pieces shall be removed fromthe vapor cleaning machine at arate less than 2 inches per second (10feet per minute) . 36 .7 Requirements for In-line Cleaning Operations 36.7 .1 Cleaning machines must be equipped with covers that completely cover machine openings. Covers must be in place at all times when the conveyors and exhausts are not being operated. If the cleaning machine is equippedwith a lip exhaust, the cover must be located below the lip exhaust. 36.7 .2 Each in-line vapor cleaning machine shall have a primary condenser. 36.7.3 The automated parts handling systemshall move parts at a speed ofno more than 2 inches per second (10 feet per minute) . 36.7.4 The following safety switches must be installed and operated: Page 11 of 33(a) Acondenser flow switch to shut offthe heat if the condenser coolant is not circulating; and (b) Avapor level control thermostat to shut offthe heat when the vapor level rises above the height of the primary cooling coils; and (c) If the cleaning machine is equipped with a spray apparatus, a spray safety switch to shut offthe spray pump or conveyor if the vapor level drops more than 4inches (10 cm) fromthe bottomof the primary condenser coil and to prevent spraying outside the vapor level ; and (d) Alow

solvent level safety switch to shut offthe heating element if it should become exposed. 36.7 .5 Each in-line cleaning machine shall have a freeboard ratio of at least 0 .75 . 36.7 .6 Each in-line cleaning machine must be equipped with a drying tunnel, a rotating (tumbling) basket, or another device that prevents cleaned pieces fromcarrying solvent liquid or vapor out ofthe unit . 36.7.7 Any in-line cleaning machine installed before November 29, 1993 must be equipped with one of the following control combinations: (a) Refrigerated freeboard chiller and freeboard ratio of at least 1 .0; or (b) Refrigerated freeboard chiller and dwell ; or (c) Carbon adsorber and dwell ; or (d) Another systemof equivalent control systemthat is approved by the Director and the EPA

. Requests for equivalency determinations must be submitted no later than June 3, 1996. Requests shall include the following information: (1) Acomplete description of process and control equipment; (2) Testing procedures that will be used to demonstrate equivalency ; and (3) The date, time and location ofthe equivalency test . 36.7 .8 Any in-line cleaning machine installed on or after November 29, 1993 must be equipped with and operate one of the following control combinations: Page 12 of 33(a) Refrigerated freeboard chiller and a superheated vapor system ; or (b) Refrigerated freeboard chiller and carbon adsorber ; or (c) Another systemof equivalent control that is approved by the Director and the EPA . Requests for equivalency determinations for control of cleaning machines installed on or after November 29, 1993 must be submitted and approved prior to startup of the cleaning machine. Requests shall include the following information: (1) Acomplete description of process and control equipment; (2) Testing procedures that will be used to demonstrate equivalency; and (3) The date, time and location of the equivalency test . 36.7.9 The size of entrance and exit openings shall be minimized so that there is a clearance of no more than four inches on each side between the largest piece cleaned and the edges ofthe opening of the cleaning machine. 36.7.10 Each in-line cleaning machine that uses a lip exhaust shall be designed and operated to route all collected solvent vapors through a properly operated and maintained carbon adsorber that meets the requirements of Subsection 36.9.5. 36.7.11 The exhaust ventilation rate shall not exceed 20 m3/min per m2 (65 cfm per ft2) of solvent/air interface, unless necessary to meet OSHA requirements. If a carbon adsorber is used to meet the requirements of Subsection 36.7 .7 or 36.7.8, the exhaust ventilation rate shall be at least 15 m3/min per m2 (50 cfm per ftz) of solvent/air interface. 36.7.12 The cleaning machine shall be operated so that water cannot be visually detected in the solvent exiting the water separator. 36.7.13 During startup of each vapor in-line cleaning machine, the primary condenser shall be turned on before the sump heater . 36.7.14 During shutdown of each vapor in-line cleaning machine, the sump heater shall be turned offand the solvent vapor layer allowed to collapse before theprimary condenser is turned off. 36.7 .15 Any spraying operations shall be done onlywithin the vapor zone or within a section of the in-line cleaning machine that is not directly exposed to the room air. Page 13 of 3336.8 Requirements for Batch Vapor Cleaning Operations Without Solvent/Air

Interfaces The owner or operator of a batch vapor cleaning machine which does not have a solvent/air interface must comply with the requirements specified below . 36.8.1 A log of solvent additions and deletions shall be maintained for each cleaning machine. 36.8.2 Solvent emissions fromeach cleaning machine which does not have a solvent/air interface shall not exceed the amount calculated using Equation 1 : EL = 85.5 * (Vol)°~6 Equation 1 Where: EL =the average monthly emission limit for any three month period (pounds/month) Vol =the cleaning capacity (volume) of the cleaning machine (cubic feet) 36.8.3 The owner or operator of a batch vapor cleaning machine that does not have a solvent/air interface shall demonstrate compliance with the emission limit calculated with Equation 1 on the first operating dayof every month using the following procedure: (a) Afill-line must be marked on the first month the measurements are taken. Solvent shall be added to bring the level to the same fill-line on the first operating day of each month thereafter ; and (b) Confirm

that only clean liquid solvent is in the vapor cleaning machine; and (c) Using the records of solvent additions and deletions for the previous month required in Subsection 36.8.1 and Equation 2, determine monthly solvent emissions : E = SA - LSR- SSR Equation 2 Where: E =the total solvent emissions for the previous month (pounds) SA = the total amount of solvent added to the cleaning machine during Page 14 of 33the previous month (pounds) LSR= the total amount of liquid solvent removed fromthe cleaning machine during the previous month (pounds) SSR =the total amount of solid waste removed fromthe cleaning machine during the previous month (pounds) (d) The SSR should be determined using either engineering calculations or EPAreference method 25d. (e) The average monthly emissions for the previous three monthperiod shall be calculated according to Equation 3: E3-month = 91 ±

_ E ~ 2 + E_3 Equation 3 3 Where:

(fl E3-month = average monthly solvent emissions during the previous three month period El, E2, E3 =solvent emissions for each ofthe three most recent months, calculated using Equation 2 . The cleaning machine is in compliance with the average monthly emission limit if E3-month, calculated using Equation 3, is less than or equal to EL, calculated according to Equation 1 . 36 .9 Compliance Specifications and Monitoring Requirements The owner or operator of a solvent cleaning machine shall monitor the following parameters and record the results: 36.9.1 The cover of each batch vapor or in-line cleaning machine shall be visually inspected monthlyto confirm that it is opening and closing properly, that it completely covers the cleaning machine's openings when closed, and that it is free of cracks, holes, and other defects. 36.9.2 The speed of automated parts handling systems shall be monitored according to the following specifications : (a) Determine the speed by measuring the time it takes for the conveyor to travel a measured distance. The speed is the distance in inches divided by the time in seconds, or the distance in feet divided by the time in minutes; Page 15 of 33and (b) Monitoring shall be performed on a monthly basis. If no exceedances of the speed requirements specified in Subsection 36.6.3 and 36.7 .3 occur in a year, then future hoist speed monitoring maybe conducted on a quarterly basis; and (c) If a speed greater than that specified in Subsections 36.6.3 and 36.7.3 is measured, the automated parts handling systemmust be adjusted so that this specification is met ; and (d) If a speed greater than that specified in Subsections 36.6.3 and 36.7 .3 is measured while monitoring is being conducted on a quarterly basis, then monthly monitoring must be resumed until another year passes without any exceedances. 36.9.3 If a refrigerated freeboard chiller is used, the temperature at the coldest point of the centroid of the chilled air blanket shall be no greater than 30% of the solvent's boilingpoint, measured in °F, and shall be monitored weekly according to the following specifications: (a) The temperature shall be monitored while the batch vapor or in-line cleaning machine is operating in the idling mode; and (b) Athermometer or thermocouple shall be used to measure the temperature at the centroid of the air blanket; and (c) If the temperature at the coldest point of the centroid of the air blanket exceeds 30%

of the solvent's boiling point, measured in °F, the chiller shall be adjusted so that this specification is met. 36.9.4 If a superheated vapor systemis used, the temperature of the solvent vapor at the centroid of the superheated vapor zone shall be maintained at least 10-s°-F above the solvent's boilingpoint and shall be monitored weekly according to the following specifications: (a) The temperature shall be monitored while the batch vapor or in-line cleaning machine is operating in the idling mode; and (b) A thermometer or thermocouple shall be used to measure the temperature at the centroid ofthe superheated solvent vapor zone; and (c) If the temperature at the centroid of the air blanket is less than 10-F-°F above the solvent's boiling point, the system shall be adjusted so that this specification is met. Page 16 of 3336.9.5 If a carbon adsorber is used, the concentration of solvent in the exhaust shall not exceed 25 ppm

. Compliance with this requirement shall be determined using the following methods: (a) Within 60 days of initial startup of the carbon adsorber, the solvent concentration in the carbon adsorber exhaust shall be tested using EPA Test Method 25. Each test shall consist of 3 separate one-hour samples, and the arithmetic mean shall be used to determine initial compliance. The results shall be reported to the Office ofAir Resources within 60 days of the test . (b) Continuing compliance shall be determined weekly using the following procedure: (1) The concentration of solvent in the exhaust shall be measured while the cleaning machine is in the working mode and is exhausting to the carbon adsorber; and (2) An easily accessible sampling port shall be provided that is located on the exhaust outlet at least 8 stack or duct diameters downstreamand 2 stack or duct diameters upstreamof any flow disturbance such as abend, expansion, contraction, or outlet . The sampling port must not be downstreamof any other inlet; and (3) Solvent concentration shall be measured at the sampling port using a colorimetric detector tube capable of detecting 25 ppm with an accuracy of + 25% or better; and (4) Colorimetric detector tubes must be used according to the manufacturer's instructions; and (5) If the carbon adsorber's exhaust exceeds 25 ppm then the desorption cycle shall be adjusted or the carbon canister replaced in order to bring the exhaust concentration below 25 ppm ; and (6) If desorption of the carbon adsorber is required, the carbon adsorber shall not be bypassed during the desorption cycle. 36.9.6 If dwell or a superheated vapor systemis used, the actual dwell time shall eQual _or not exceed the minimum dwell time. Minimum and actual dwell time shall be determined using the following procedures: (a) Forunits without a superheated vapor system, the minimum dwell time shall be determined for each part type or parts basket or for the most Page 17 of 33complex part type or parts basket using the following procedure: (1) Determine the amount of time necessary for the part or parts basket to cease dripping once placed in the vapor zone. The part or parts basket used forthis determination must be at room temperature when placed in the vapor zone; and (2) The minimum

dwell time required for parts to remain in the freeboard zone above the vapor zone is calculated as 35 percent of the time determined in Paragraph (a)(1) of this subsection. (b) The minimum

dwell time for a cleaning machine equipped with a superheated vapor system shall be determined according to the specifications ofthe manufacturer of the control equipment; and (c) On a monthly basis, the actual dwell time that parts are held in the freeboard zone above the vapor zone shall be measured; and (d) Ifthe actual dwell time is less than the minimum dwell time determined using the applicable procedure in Paragraph (a) or (b) of this subsection for aparticular part or parts basket, the automatic parts handling system must be adjusted so that this specification is met. 36.9.7 Safety switches must be tested semiannually. 36.9.8 Alternative monitoring procedures maybe used ifapproved by the Director and the EPA . 36.10 Recordkeeping 36.10 .1 The owner or operator of a batch vapor or in-line organic cleaning machine shall maintain the following records for the lifetime ofthe cleaning unit : (a) Owner's manuals or written maintenance and operating procedures for the cleaning machine and air pollution control equipment; and (b) Date of installation ofthe cleaning machine and its control devices; and (c) Records of the content of each solvent used in the cleaning machine; and (d) If dwell or superheated vapor is used, the minimum dwell times determined using the procedures specified in Paragraph (a) or (b) of Subsection 36.9.6; and (e) Records of training provided to solvent cleaning machine operators. Page 18 of 3336.10 .2 The owner or operator of a batch vapor or in-line organic cleaning machine shall maintain the following records for a period of five years: (a) Amount and type of solvent used in each cleaning machine each year; and Amount of trichloroethylene perchloroeLhylene and methylene chloride used in each cleaning machine each month; and (bc) (64) Results of monitoring required under Section 36.9; and Information on the actions taken to complywith Subsections 36.9.2(c), 36.9.3(c), 36.9.4(c), 36.9.5(b)(5), and 36.9.6(d) . This includes records of written or verbal orders for replacement parts, a description ofthe repairs made, and the additional monitoring conducted to demonstrate that monitored parameters have returned to acceptable levels; and (de) The dates that carbon adsorber beds are desorbed; and (e4) The dates that the carbon adsorber bed is changed; and (-fg) The date and type of each equipment malfunction (or leak) and the date it is repaired; and (h) The date and time of each incidence where a coverwas not in place, as specified in 36.6.1 and 36.7.1 ; and (gi) (hJ~ If any safety switches are activated, the date and the reason whythe switch was triggered; The results of semiannual safety switch tests; and (ik_) For batch vapor machines which have been exempted fromthe automated parts handling systemrequirements of Subsection 36.6.3, a log of additions and deletions of solvent fromthe exempted vapor cleaning machine, as required in Subsection 36.12.4. 36.10 .3 The owner or operator of a batch vapor cleaning machine without a

solvent/air interface complying with the emission limits in Section 36.8 must maintain the following records for five years: (a) A log of solvent additions and deletions, as required in Subsection 36.8.1 ; and Page 19 of 33(b) Monthly emissions, average monthly emissions for each 3 month period, and the calculations ofthose values according to the procedure specified in Subsection 36.8.3; and (c) The amount of solvent in the solid waste removed fromthe cleaning machine, calculated using the procedure specified in Subsection 36.8.3(d) ; and (d) The method used to determine the cleaning capacity of the cleaning machine. 36.10.4 The owner or operator of a batch cold cleaning machine shall maintain

records of training provided to cleaning machine operators for the lifetime of the unit and shall maintain the following records for a period of five years: (a) Amount and type of solvent used in each cleaning machine each year and (b) The date and type of each equipment malfunction (or leak) and the date it is repaired and (c) The date and time of each incidence where a cover was not in place as specified in 36.5.1 . and (d) The amount of trichloroethylene, perchloroethylene and methylene chloride used in each cleaning machine each month. 36.10.5 The owner or operator of a cold cleaning machine shall maintain for a

period of not less than two years, written records of each purchase of solvents containing volatile organic compounds for cold cleaning, including the following information: (a) The name and address of the solvent supplier. (b) The type ofsolvent, including the product or vendor identification number . (c) The vapor pressure of the solvent measured in mm Hg at 20°C (68°F) (d) An invoice, bill of sale, certificate that corresponds to a number of sales, Material Safety Data Sheet (MSDS) or other documentation acceptable to the Department may be used to complywith this Page 20 of 33Subsection. 36.10.56 All records specified in Subsections 36.10 .1 through 36.10

.4_5 shall be made available to the Department or the EPAfor inspection upon request . 36.11 Reporting Requirements 36.11 .1 Initial Notification Report

(a) The owner or operator of an organic solvent cleaning machine installed before November 29, 1993 that uses a solvent containing trichloroethylene, perchloroethylene, 1,1,1-trichloroethane, methylene chloride, chloroform, or carbon tetrachloride must submit an Initial Notification Report to the Division no later than August 29, 1995. This report must include the following information: (1) The name and address of owner or operator ; and (2) The address of the solvent cleaning machine(s) ; and (3) The type of the solvent cleaning machine (cold, batch vapor, or in-line), the area of the solvent/air interface, and the type of existing controls; and (4) The date of installation of the solvent cleaning machine(s) and related control devices. Ifthe dates of installation are not known a letter certifying that installation was prior to, or after, November 29, 1993 is acceptable; and (5) The anticipated compliance approach for each solvent degreaser; and (6) An estimate of the amount of solvent used annually in each solvent cleaning machine. (b) The owner or operator of an organic solvent cleaning machine installed on or after November 29, 1993 that uses a solvent containing trichloroethylene, perchloroethylene, 1,1,1- trichloroethane, methylene chloride, chloroform, or carbon tetrachloride must submit an Initial Notification Report to the Division 120 days before startup of the cleaning machine or by January 31, 1995, whichever is later. This report must include the following information:

Page 21 of 33(1) The name and address of owner or operator; and (2) The address of the solvent cleaning machine(s) ; and (3) The type of solvent cleaning machine (cold, batch vapor, or in-line), the solvent/air interface area, and the type of existing controls; and (4) The facility's anticipated compliance approach for each solvent cleaning machine; and (5) The expected commencement date of the construction or reconstruction; and (6) The expected completion date of the construction or reconstruction; and (7) The anticipated date of startup of the solvent cleaning machine; and (g) An estimate of the amount ofsolvent which will be used annually in each solvent cleaning machine. (c) The owner or operator of an organic solvent cleaning machine that uses a solvent containing trans 1,2-dichloroethene or n-prop.yl bromide must submit an Initial Notification Report to the Office ofAir Resources one hundred and twenty (120Lys before startup ofthe cleaning machine using that solvent or by [the date three months after the effective date ofthis amendmenfl, whichever is later. This report must include the following information: "I (3) (4) The name and address ofthe owner or operator ; and The address of the solvent cleaning machine(s) ; and The type of solvent cleaning machine used (cold, batch vapor, or in-line), the solvent/air interface area, and the type of c_o_ntrols used; and The facility's anticipated compliance approach and the anticipated date ofcompliance for each solvent cleaning machine; and

Page 22 of 33(5) An estimate of the amount of solvent to be used annually in each solvent cleaning machine. 36.11 .2 Compliance Notification Report

(a) The owner or operator of an organic solvent cleaning machine installed before November 29, 1993 must submit a Compliance Notification Report to the Division ofAir Resources no later than March 1, 1997. Compliance Notification Reports for organic solvent cleaning machines installed on or after November 29, 1993 must be submitted no more than 60days after startup of the cleaning machine or by June 7, 1996, whichever is later. (b) The owner or operator ofan organic solvent cleaning machine that uses a solvent containing trans 1,2-dichloroethene or n-propyl bromide must submit a Compliance Notification Report to the Office ofAir Resources no later than [the date six months fromthe effective date ofthis amendment] or no more than thirty (30) days after startup ofthe cleanin machine using that solvent, whichever is later (bc) Compliance Notification Reports shall contain the following information:

(1) The name and address of the owner or operator; and (2) The address ofthe solvent cleaning machine; and (3) Astatement, signed by the owner or operator, stating that each cleaning machine is in compliance with this regulation; and (4) The control equipment used to achieve compliance for each cleaning machine; and (5) If a refrigerated freeboard chiller or superheated vapor is used, the dates and results of weekly temperature monitoring for the first month after the compliance date; and (6) If a carbon adsorber is used, the date and results of weekly measurements ofthe solvent concentration in the exhaust for the first month after the compliance date; and (7) If dwell is used, the minimum dwell times and the actual dwell times measured for the first month; and

Page 23 of 33

## (g) For vapor cleaning machines without solvent/air interfaces, a description ofthe method used to determine the cleaning capacity of the machine and the results ofthe monthly solvent emissions calculation for the month beginning with the compliance date. 36.11 .3 Exceedances and Exceedance Reports

(a) The following occurrences are considered exceedances and must be reported on the facility's Exceedance Report : (1) An exceedance has occurred if the requirement in Subsection 36.9.5(b)(6) has not been met; or (2) An exceedance has occurred if the requirements in Subsections 36.9.1, 36.9.2, 36.9.3, 36.9.4, 36.9.5 or 36.9.6 are not met of detec-tie}}. Once adjustments or repairs have been made, parameters must be remeasured to demonstrate that the parameter is within the acceptable limits ; or (3) Ifa vapor cleaning machine does not have a solvent/air interface, an exceedance has occurred if the three month average monthly emission limit is not met in any month; (4) If a vapor cleaning machine has been exempted fromthe automated parts handling systemrequirements, an exceedance has occurred ifthe three month emission limit, S, as calculated using Equation 4, is not met in any month. (5) An exceedance has occurred if emissions exceed the facility wide emission limits specified in 40CFRPart 63.471 . (b) The owner or operator of a batch vapor or in-line cleaning machine shall initially submit Exceedance Reports semiannually, except when the Department determines on a case-by-case basis that more or- less frequent reporting is necessary. (c) If an exceedance occurs, Exceedance Reports must be submitted quarterly until a request to reduce the reporting frequency as s 'f peci ied in Subsection 36.11 .3 (f) has been approved.

Page 24 of 33(d) The Exceedance Report shall be received by the thirtieth day following the end of each exceedance reporting period. Initial reporting periods are January 1 - June 30and July 1 - December 31 . (e)

(fl Exceedance Reports shall include the following information for actions taken to comply with Subsections 36.9.1, 36.9.2, 36.9.3, 36.9.4, 36.9.5, or 36.9.6: (1) Records ofwritten or verbal orders for replacement parts, a description of the repairs made, additional monitoring to demonstrate that monitored parameters have returned to acceptable levels; and (2) If an exceedance has occurred, the reason for the exceedance and a description ofthe actions taken to correct the exceedance; and (3) If an exceedance has occurred, the dates the cleaning machine or control equipment was repaired, retested, and returned to service

; and (4) If an exceedance has not occurred or the cleaning and control equipment has not been inoperative, repaired, or adjusted, this information must be stated in the report . If a facility is required to submit Exceedance Reports on a quarterly (or more frequent) basis, the submittal frequency may be reduced to semiannual with the Director's approval, if the following requirements are achieved: (1) The facility has demonstrated a full year of compliance without an exceedance; and (2) The owner or operator continues to complywith the recordkeeping and monitoring requirements specified in this regulation. 36.11 .4 Annual Compliance Reports (a) The owner or operator of a batch vapor or in-line solvent cleaning machine shall submit an annual report to the Office ofAir Resources by February 1 of each year for the previous calendar year . This report shall include the following: Page 25 of 33(al) Asigned statement fromthe facility owner or his designee stating that, "All operators of solvent cleaning machines have received training on the proper operation of solvent cleaning machines and their control devices sufficient to pass the test required in Appendix A ." (b2) An estimate of solvent consumption for each solvent cleaning machine during the reporting period. (e3) For each machine complying with Section 36.8, the average monthly solvent consumption and the average monthly emissions for each consecutive three monthperiod, calculated using Equation 3. (d4) For each batch vapor cleaning machine that has received an exemption fromthe automated parts handling systemrequirements, as specified in Section 36.12, the solvent emissions during each three month period, calculated using Equation 5 . (b) The owner or operator of a facility which uses a solvent containing trichloroethylene, perchloroethylene or methylene chloride in a solvent cleaning machine shall report its annual emissions ofthose solvents in writing to the D4visiefrOffice ofAir Resources on or before 15 April ofthe following calendar year. The report shall be signed by the owner or operator ofthe facility and can be fulfilled by submitting the reports required in Rhode Island Air Pollution Control Regulation No. 14, sections 14.2 and 14.3 If annual emissions ofthose solvents from solvent cleaning operations at a facility exceed 50% ofthe facilitywide limits established in 40CFR 63.471 in anyyear, the facility must thereafter fulfill all applicable recordkeeping and reportin requirements in 40 CFR63.460 and 40 CFR 63.471 . 36 .12 Exemption from Automated Parts Handling SystemRequirement 36.12.1 The owner or operator of a batch vapor cleaning machine may apply for

an exemption fromthe automated parts handling systemrequirement in Subsection 36.6.3. Exemptions shall limit solvent emissions fromthe cleaning machine during any three month period after the compliance date to the amount calculated using Equation 4: S = 92 * A Equation 4 Where: Page 26of 33S = The amount of solvent, in pounds, that can be emitted fromthat cleaning machine during any three month period after the compliance date specified in Section 36.3 A= The area of the solvent/air interface for that machine, in square feet. 36.12.2 Exemption requests shall be submitted to the Division by the following

dates: (a) December 1, 1996 for vapor cleaning machines that commenced construction or reconstruction before November 29, 1993, and (b) 30days prior to startup or May 8, 1996, whichever is later, for vapor cleaning machines that commenced construction or reconstruction on or after November 29, 1993. 36.12.3 Exemption requests shall include the following information:

(a) The name and address of the facility; and (b) An identification of the vapor cleaning machine for which the exemption is being requested; and (c) The area of the solvent/vapor interface, in square feet, of the vapor cleaning machine; and (d) The three month emission limit, S, calculated using Equation 4; and (e) Astatement, signed by the owner or operator of the facility, that emissions of solvent fromthe vapor cleaning machine will not exceed the three month emission limit, S, during any three month period after the compliance date in Section 36.3. 36.12.4 The owner or operator of a facilitywhich is granted an exemption to the

requirements of Subsection 36.6.3 shall maintain a log of additions and deletions of solvent fromthe exempted vapor cleaning machine. 36.12.5 The owner or operator of a facilitywhich is granted an exemption to the

requirements of Subsection 36.6.3 shall demonstrate compliance with the three month emission limit, S, calculated using Equation 4on the first operating day of every month using the following procedure: (a) Afill-line must be marked on the machine on the first month the measurements are taken; and

Page 27 of 33(b) On the first day of each month thereafter, the machine shall be filled to the fill-line with clean liquid solvent ; and (c) On the first dayof each month, using the log of solvent additions and deletions required in Subsection 36.12.4, calculate solvent emissions for the most recent three month period with Equation 5: EA = SA - SR Equation 5 Where:EA = solvent emissions during the three month period (pounds) SA = the total amount of solvent added to the cleaning machine during the three month period (pounds) SR = the total amount of solvent removed fromthe cleaning machine during the three month period (pounds) (d) The cleaning machine is in compliance with the three month emission limit if solvent emissions in the three month period, EA, calculated using Equation 5, are less than or equal to S, calculated according to Equation 4 . 36.12.6 If the three month emission limit, S, is exceeded two times, an automated

parts handling systemmust be installed within 60 days of the end of the three month period in which the second exceedance occurred. 36.13 General Provisions 36.13.1 Purpose

The purpose of this regulation is to limit emissions fromorganic solvent cleaning operations. 36.13.2 Authority

These regulations are authorized pursuant to R .I . Gen. Laws § 42-17.1- 2(s) and 23-23, as amended, and have been promulgated pursuant to the procedures set forth in the R .I . Administrative Procedures Act, R .I . Gen. Laws Chapter 42-35 36.13.3 Application Page 28 of 33The terms and provisions of this regulation shall be liberally construed to permit the Department to effectuate the purposes of state law, goals and policies. 36.13.4 Severability

If any provision of this regulation or the application thereofto anyperson or circumstance, is held invalid by a court of competentjurisdiction, the validity of the remainder of the regulation shall not be affected thereby . 36.13.5 Effective Date

The foregoing regulation, "Control of Emissions fromOrganic Solvent Cleaning", as amended, after due notice, is hereby adopted and filed with the Secretary of State this _day of - 20_to become effective twenty (20) days thereafter, in accordance with the provisions of Chapters 23-23, 42-35, 42-17.1, 42-17.6, ofthe General Laws of Rhode Island of 1956, as amended. W . Michael Sullivan, PhD ., Director Department ofEnvironmental Management

Notice Given on: Public Hearing held: Filing Date: Effective Date:

Page 29 of 33Appendix A Test of Operator Knowledge of Solvent Cleaning Procedures General Questions 1 . What is the maximum allowable speed for parts entry and removal? A . 28 feet per minute B. 10 feet per minute C . 36 feet per minute D . No limit 2 . How

do you ensure that parts enter and exit the solvent cleaning machine at the speed required in the regulation? A . Program

on computerized hoist monitors speed. B . Canjudge the speed by looking at it. C . Measure the time it takes the parts to travel a measured distance. 3 . Identify the sources of air disturbances? A . Fans B. Open doors C . Open windows D . Ventilation vents E. All of the above 4. What are the three operating modes? A . Idling, working, and downtime B . Precleaning, cleaning, and drying C . Startup, shutdown, off D . None of the above 5. When canparts or parts baskets be removed fromthe solvent cleaning machine? A . When they are clean B . At anytime C . When dripping stops D . Either A or C is correct 6. How

must parts be oriented during cleaning? A . It does not matter as long as they fit in the parts basket . B. So that the solvent pools in the cavities where the dirt is concentrated. C . So that solvent drains fromthemfreely. Page 30 of 337. During startup, what must be turned on first, the primary condenser or the sump heater? A . Primary condenser B . Sump heater C . Turn both on at same time D . Either Aor B is correct 8. During shutdown, what must be turned offfirst, the primary condenser or the sump heater? A . Primary condenser B. Sump heater C . Turn both on at same time D . Either Aor B is correct 9 . In what manner must solvent be added to and removed fromthe solvent cleaning machine? A . With leak proofcouplings B . With the end of thepipe in the solvent sump below the liquid solvent surface. C . So long as the solvent does not spill, the method does not matter. D . Aand B 10. What must be done with waste solvent, still bottoms, and sump bottoms? A . Pour down the drain B . Store in closed container C . Store in abucket D . Aor B 11 . What types of materials are prohibited frombeing cleaned in solvent cleaning machines using halogenated HAPsolvents? A . Sponges B . Fabrics C . Paper D . All of the above 12. When can a cover be open? A . While parts are in the cleaning machine B. During parts entry and removal or when an in-line conveyor is operating C . At all times D . Never 13. Covers must be maintained in what condition? A . Free of holes B . Free of cracks C . So that they completely seal cleaning opening D . All of the above Page 31 of 33Control Device Specific Questions

Freeboard Refrigerated Chiller 1 . What temperature must the freeboard refrigerated chiller achieve? A . Below

room temperature B . 50°F C . Below

the solvent boiling point D . 30percent ofthe solvent's boiling point Dwell 2. Where must the parts be held for the appropriate dwell time? A . In the vapor zone B. In the freeboard zone above the vapor zone C . Above the cleaning machine D . In the immersion sump

Page 32 of 33Answers

General Questions 1 . B 2 . Aor C 3. E 4 . A 5 . C 6 . C 7. A 8. B 9 . D 10 . B 11 . D 12. B 13. D Control Device Specific Questions 1 . D 2 . B

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