DAR File No. 41810
This rule was published in the July 1, 2017, issue (Vol. 2017, No. 13) of the Utah State Bulletin.
Environmental Quality, Air Quality
Degreasing and Solvent Cleaning Operations
Notice of Proposed Rule
DAR File No.: 41810
Filed: 06/14/2017 09:24:08 AM
Purpose of the rule or reason for the change:
The purpose of the rule change is to remove the sections related to industrial solvent cleaning. These sections are being removed because a new rule is being proposed to regulate solvent cleaning (Rule R307-304). (Editor's Note: The proposed new Rule R307-304 is under Filing No. 41809 in this issue, July 1, 2017, of the Bulletin.)
Summary of the rule or change:
The changes include the removal of everything in the rule related to industrial solvent cleaning.
Statutory or constitutional authorization for this rule:
- Section 19-2-104
Anticipated cost or savings to:
the state budget:
There are no anticipated costs or savings to the state budget because the rule is removing requirements related to solvent cleaning operations. It is not adding any new, affirmative requirements.
There are no anticipated costs or savings to local governments because the rule is removing requirements related to solvent cleaning operations. It is not adding any new, affirmative requirements.
There are no anticipated costs or savings to small businesses because the rule is removing requirements related to solvent cleaning operations. It is not adding any new, affirmative requirements.
persons other than small businesses, businesses, or local governmental entities:
There are no anticipated costs or savings to "other persons" because the rule is removing requirements related to solvent cleaning operations. It is not adding any new, affirmative requirements.
Compliance costs for affected persons:
There are no compliance costs because the rule is removing requirements related to solvent cleaning operations. It is not adding any affirmative requirements.
Comments by the department head on the fiscal impact the rule may have on businesses:
After conducting a thorough analysis, it was determined that this proposed rule will not result in a fiscal impact to businesses. There will be no fiscal impact on businesses as a result of this rule change because the rule is removing requirements related to solvent cleaning operations. It is not adding any new, affirmative requirements.
Alan Matheson, Executive Director
The full text of this rule may be inspected, during regular business hours, at the Office of Administrative Rules, or at:Environmental Quality
Air QualityRoom Fourth Floor
195 N 1950 W
SALT LAKE CITY, UT 84116-3085
Direct questions regarding this rule to:
- Ryan Stephens at the above address, by phone at 801-536-4419, by FAX at 801-536-0085, or by Internet E-mail at firstname.lastname@example.org
Interested persons may present their views on this rule by submitting written comments to the address above no later than 5:00 p.m. on:
Interested persons may attend a public hearing regarding this rule:
- 07/27/2017 01:00 PM, DEQ Bldg, 195 N 1950 W, DEQ Board Room, Salt Lake City, UT
This rule may become effective on:
Bryce Bird, Director
R307. Environmental Quality, Air Quality.
and Solvent Cleaning Operations].
The purpose of this rule is to limit
volatile organic compound (VOC) emission from degreasing [
and solvent cleaning ]operations.
R307-335 applies to [
all ]degreasing [ or solvent cleaning ]operations that use VOCs and
that are located in [ PM10 and PM2.5 nonattainment and maintenance plan areas as
defined in 40 CFR 81.345 (July 1, 2011)].
The following additional definitions apply to R307-335:
"Batch open top vapor degreasing" means the batch process of cleaning and removing grease and soils from metal surfaces by condensing hot solvent vapor on the colder metal parts.
"Cold cleaning" means the batch process of cleaning and removing soils from metal surfaces by spraying, brushing, flushing or immersing while maintaining the solvent below its boiling point.
"Conveyorized degreasing" means the continuous process of cleaning and removing greases and soils from metal surfaces by using either cold or vaporized solvents.
"Department of Defense military technical data"
means a specification that specifies design requirements, such as
materials to be used, how a requirement is to be achieved, or how
an item is to be fabricated or constructed.]
"Freeboard ratio" means the freeboard height (distance between solvent line and top of container) divided by the width of the degreaser.
"Industrial solvent cleaning" means operations
performed using a liquid that contains any VOC, or combination of
VOCs, which is used to clean parts, tools, machinery, equipment and
work areas. Cleaning operations include, but are not limited to,
spraying, wiping, flushing, and purging.]
"Open top vapor degreaser" means the batch process of cleaning and removing soils from metal surfaces by condensing low solvent vapor on the colder metal parts.
"Separation operation" means any process that
separates a mixture of compounds and solvents into two or more
components. Specific mechanisms include extraction, centrifugation,
filtration, and crystallization. "Solvent metal cleaning" means the process of
cleaning soils from metal surfaces by cold cleaning, open top vapor
degreasers, or conveyorized degreasing.]
R307-335-4. Cold Cleaning Facilities.
No owner or operator shall operate a degreasing or solvent cleaning operation unless conditions in R307-335-4(1) through (7) are met.
(1) A cover shall be installed which shall remain closed except during actual loading, unloading or handling of parts in cleaner. The cover shall be designed so that it can be easily operated with one hand if:
(a) The volatility of the solvent is greater than 2 kPa (15 mm Hg or 0.3 psi) measured at 38 degrees C (100 degrees F),
(b) The solvent is agitated, or
(c) The solvent is heated.
(2) An internal draining rack for cleaned parts shall be installed on which parts shall be drained until all dripping ceases. If the volatility of the solvent is greater than 4.3 kPa (32 mm Hg at 38 degrees C (100 degrees F)), the drainage facility must be internal, so that parts are enclosed under the cover while draining. The drainage facility may be external for applications where an internal type cannot fit into the cleaning system.
(3) Waste or used solvent shall be stored in covered containers.
(4) Tanks, containers and all associated equipment shall be maintained in good operating condition, and leaks shall be repaired immediately or the degreaser shall be shutdown.
(5) Written procedures for the operation and maintenance of the degreasing or solvent cleaning equipment shall be permanently posted in an accessible and conspicuous location near the equipment.
(6) If the solvent volatility is greater than 4.3 kPa (33 mm Hg or 0.6 psi) measured at 38 degrees C (100 degrees F), or if solvent is heated above 50 degrees C (120 degrees F), then one of the following control devices shall be used:
(a) Freeboard that gives a freeboard ratio greater than 0.7;
(b) Water cover if the solvent is insoluble in and heavier than water); or
(c) Other systems of equivalent control, such as a refrigerated chiller or carbon adsorption.
(7) If used, the solvent spray shall be a solid fluid stream at a pressure that does not cause excessive splashing and may not be a fine, atomized or shower type spray.
R307-335-5. Open Top Vapor Degreasers.
Owners or operators of open top vapor degreasers shall, in addition to meeting the requirements of R307-335-4(3), (4) and (5),
(1) Equip the vapor degreaser with a cover that can be opened and closed without disturbing the vapor zone. The cover shall be closed except when processing work loads through the degreaser;
(2) Install one of the following control devices:
(a) Equipment necessary to sustain:
(i) A freeboard ratio greater than or equal to 0.75, and
(ii) A powered cover if the degreaser opening is greater than 1 square meter (10.8 square feet),
(b) Refrigerated chiller,
(c) Enclosed design (cover or door opens only when the dry part is actually entering or exiting the degreaser),
(d) Carbon adsorption system, with ventilation greater than or equal to 15 cubic meters per minute per square meter (50 cubic feet per minute per square foot) of air/vapor area when cover is open and exhausting less than 25 parts per million of solvent averaged over one complete adsorption cycle;
(3) Minimize solvent carryout by:
(a) Racking parts to allow complete drainage,
(b) Moving parts in and out of the degreaser at less than 3.3 meters per minute (11 feet per minute),
(c) Holding the parts in the vapor zone at least 30 seconds or until condensation ceases,
(d) Tipping out any pool of solvent on the cleaned parts before removal, and
(e) Allowing the parts to dry within the degreaser for at least 15 seconds or until visibly dry.
(4) Spray parts only in or below the vapor level;
(5) Not use ventilation fans near the degreaser opening, nor provide exhaust ventilation exceeding 20 cubic meters per minute per square meter (65 cubic feet per minute per square foot) in degreaser open area, unless necessary to meet state and federal occupational, health, and safety requirements.
(6) Not degrease porous or absorbent materials, such as cloth, leather, wood or rope;
(7) Not allow work loads to occupy more than half of the degreaser's open top area;
(8) Ensure that solvent is not visually detectable in water exiting the water separator;
(9) Install safety switches on the following:
(a) Condenser flow switch and thermostat (shuts off sump heat if condenser coolant is either not circulating or too warm); and
(b) Spray switch (shuts off spray pump if the vapor level drops excessively, i.e., greater than 10 cm (4 inches).
(10) Open top vapor degreasers with an open area smaller than one square meter (10.8 square feet) are exempt from R307-335-5(2)(b) and (d).
R307-335-6. Conveyorized Degreasers.
Owners and operators of conveyorized degreasers shall, in addition to meeting the requirements of R307-335-4(3), (4) and (5) and R307-335-5(5):
(1) Install one of the following control devices for conveyorized degreasers with an air/vapor interface equal to or greater than two square meters (21.5 square feet):
(a) Refrigerated chiller; or
(b) Carbon adsorption system, with ventilation greater than or equal to 15 cubic meters per minute per square meter (50 cubic feet per minute per square foot) of air/vapor area when downtime covers are open, and exhausting less than 25 parts per million of solvent, by volume, averaged over a complete adsorption cycle.
(2) Equip the cleaner with equipment, such as a drying tunnel or rotating (tumbling) basket, sufficient to prevent cleaned parts from carrying out solvent liquid or vapor.
(3) Provide downtime covers for closing off the entrance and exit during shutdown hours. Ensure that down-time cover is placed over entrances and exits of conveyorized degreasers immediately after the conveyor and exhaust are shut down and is removed just before they are started up.
(4) Minimize carryout emissions by racking parts for best drainage and maintaining the vertical conveyor speed at less than 3.3 meters per minute (11 feet per minute).
(5) Minimize openings: Entrances and exits should silhouette work loads so that the average clearance (between parts and the edge of the degreaser opening) is either less than 10 cm (4 inches) or less than 10% of the width of the opening.
(6) Install safety switches on the following:
(a) Condenser flow switch and thermostat - shuts off sump heat if coolant is either not circulating or too warm;
(b) Spray switch - shuts off spray pump or conveyor if the vapor level drops excessively, i.e., greater than 10 cm or (4 inches); and
(c) Vapor level control thermostat - shuts off sump level if vapor level rises too high.
(7) Ensure that solvent is not visibly detectable in the water exiting the water separator.
R307-335-7. Industrial Solvent Cleaning.
(1) Exemptions. The requirements of R307-335-7 do not
apply to aerospace, wood furniture, shipbuilding and repair, flat
wood paneling, large appliance, metal furniture, paper film and
foil, plastic parts, miscellaneous metal parts coatings and light
autobody and truck assembly coatings, flexible packaging,
lithographic and letterpress printing materials, fiberglass boat
manufacturing materials, and operations that are exclusively
covered by Department of Defense military technical data and
performed by a Department of Defense contractor and/or on site at
installations owned and/or operated by the United States Armed
Forces. (2) Operators of industrial solvent cleaning that emit 15
pounds of VOCs or more per day from industrial solvent cleaning
operations, shall reduce VOC emissions from the use, handling,
storage, and disposal of cleaning solvents and shop towels by
implementing the following work practices: (a) Covering open containers; and (b) Storing used applicators and shop towels in closed
fire proof containers, and (c) Limiting VOC emissions by either: (i) Using solvents (excluding water and solvents exempt
from the definition of volatile organic compounds found in
R307-101-2) with a VOC limit in Table 1; or (ii) Installing an emission control system designed to
have an overall capture and control efficiency of at least
Solvent Cleaning VOC Limits
Solvent Cleaning Category VOC Limit (lb/gal)
Coatings, adhesives and ink manufacturing 4.2
Electronic parts and components 4.2
General miscellaneous cleaning 2.5
Medical devices and pharmaceutical
Tools, equipment and machinery 6.7
General surface cleaning 5.0
Screening printing operations 4.2
Semiconductor tools, maintenance and equipment
R307-335-8. Add-on Emission Control Systems Operations.
(1) Determination of overall capture and control
efficiency shall be determined using EPA approved methods, as
follows. (a) The capture efficiency of a VOC emission control
system's VOC collection device shall be determined according
to EPA's "Guidelines for Determining Capture
Efficiency," January 9, 1995 and 40 CFR Part 51, Appendix M,
Methods 204-204F, as applicable. (b) The control efficiency of a VOC emission control
system's VOC control device shall be determined using test
methods in Appendices A-1, A-6, and A-7 to 40 CFR Part 60, for
measuring flow rates, total gaseous organic concentrations, or
emissions of exempt compounds, as applicable. (c) An alternative test method may be substituted for the
preceding test methods after review and approval by the EPA
Administrator. (2) The owner or operator of a control system shall
provide documentation that the emission control system will
attain the requirements of R307-335-7(2)(c)(ii). (3) The owner or operator shall maintain records of key
system parameters necessary to ensure compliance with R307-335-7.
Key system parameters may include, but are not limited to,
temperature, pressure and flow rates. Operator inspection
schedule, monitoring, recordkeeping, and key parameters shall be
in accordance with the manufacturer's recommendations, and as
required to demonstrate operations are providing continuous
emission reduction from the source during all periods that the
operations cause emissions from the source. (4) The owner or operator shall maintain for a minimum of
two years records of operating and maintenance sufficient to
demonstrate that the equipment is being operated and maintained in
accordance with the manufacturer recommendations.]
The owner or operator shall maintain, for
a minimum of two years,
of the solvent VOC content applied and the physical
characteristics that] demonstrate compliance with R307-335[ -7(2)].
KEY: air pollution, degreasing[
, solvent cleaning
Date of Enactment or Last Substantive Amendment: [
December 1, 2014]
Notice of Continuation: January 27, 2017
Authorizing, and Implemented or Interpreted Law: 19-2-104(1)(a)
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For questions regarding the content or application of this rule, please contact Ryan Stephens at the above address, by phone at 801-536-4419, by FAX at 801-536-0085, or by Internet E-mail at email@example.com. For questions about the rulemaking process, please contact the Office of Administrative Rules.