DAR File No. 38676

Environmental Quality, Air Quality

Rule R307-343

Emissions Standards for Wood Furniture Manufacturing Operations

Change in Proposed Rule

DAR File No.: 38676
Filed: 10/07/2014 09:57:17 AM

RULE ANALYSIS

Purpose of the rule or reason for the change:

The EPA has indicated its intention to approve the area source coatings rules for the PM2.5 State Implementation Plan as reasonable available control technology (RACT), but not until: 1) they are amended to clarify that the amount of control removal specified in each rule is based on the entire system, and 2) the inspection and recordkeeping requirements for these systems are expanded. These changes were proposed to this and 13 other air quality area source rules, and a 30-day public comment period was held. During the public comment period, several inquiries were made regarding why the rules do not permit the use of exempt solvents for cleaning. The definition of "volatile organic compound (VOC)" found in Section R307-101-2 incorporates the definition of VOC found in 40 CFR 51.100(s)(1). This definition does permit the use of exempt compounds for cleaning; however, this allowance is not explicitly stated in this or the other proposed area source rules. The change to the proposed rule is to specify that exempt compounds are not VOC by definition.

Summary of the rule or change:

The change clarifies that exempt compounds are not VOC by definition. (DAR NOTE: The original proposed amendment upon which this change in proposed rule (CPR) was based was published in the August 1, 2014, issue of the Utah State Bulletin, on page 16. Underlining in the rule below indicates text that has been added since the publication of the proposed rule mentioned above; strike-out indicates text that has been deleted. You must view the CPR and the proposed amendment together to understand all of the changes that will be enforceable should the agency make this rule effective.)

State statutory or constitutional authorization for this rule:

• Subsection 19-2-104(1)(a)

Anticipated cost or savings to:

the state budget:

This change is to add clarifying language and does not change any of the rule requirements; therefore, there are no anticipated costs or savings to the state budget.

local governments:

This change is to add clarifying language and does not change any of the rule requirements; therefore, there are no anticipated costs or savings to local government.

small businesses:

This change is to add clarifying language and does not change any of the rule requirements; therefore, there are no anticipated costs or savings to small businesses.

persons other than small businesses, businesses, or local governmental entities:

This change is to add clarifying language and does not change any of the rule requirements; therefore, there are no anticipated costs or savings to persons other than small businesses, businesses, or local government entities.

Compliance costs for affected persons:

This change is to add language to clarify that exempt compounds are not VOC by definition. This change does not result in any additional compliance costs.

Comments by the department head on the fiscal impact the rule may have on businesses:

This change is to add language to clarify that exempt compounds are not VOC by definition. This change will not have a fiscal impact on businesses.

Amanda Smith, Executive Director

The full text of this rule may be inspected, during regular business hours, at the Division 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:

• Mark Berger at the above address, by phone at 801-536-4000, by FAX at 801-536-0085, or by Internet E-mail at mberger@utah.gov

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:

This rule may become effective on:

12/01/2014

Authorized by:

Bryce Bird, Director

R307. Environmental Quality, Air Quality.

R307-343. Emissions Standards for Wood Furniture Manufacturing Operations.

R307-343-1. Purpose.

The purpose of R307-343 is to limit volatile organic compound (VOC) emissions from wood furniture manufacturing.

 

R307-343-2. Applicability.

R307-343 applies to wood furniture manufacturing operations, including related cleaning activities, that have the potential to emit 2.7 tons or more per year of VOCs and that are located in Box Elder, Cache, Davis, Salt Lake, Utah, Tooele, and Weber counties.

 

R307-343-3. Definitions.

The following additional definitions apply to R307-343:

"Affected source" means a wood furniture manufacturing source that meets the criteria in R307-343-2.

"As applied" means the volatile organic compound and solids content of the finishing material that is actually used for coating the substrate. It includes the contribution of materials used for in-house dilution of the finishing material.

"Coating" means a protective, decorative, or functional material applied in a thin layer to a surface. Such materials may include paints, topcoats, varnishes, sealers, stains, washcoats, basecoats, inks, and temporary protective coatings.

"Compliant coating" means a finishing material or strippable booth coating that meets the emission limits specified in R307-343-4(1).

"Control system" means the combination of capture and control devices used to reduce emissions to the atmosphere.

"Conventional Air Spray" means a spray coating method in which the coating is atomized by mixing it with compressed air at an air pressure greater than ten pounds per square inch (gauge) at the point of atomization. Airless, air assisted airless spray technologies, and electrostatic spray technology are not considered conventional air spray.

"Finishing material" means a coating used in the wood furniture industry, including basecoats, stains, washcoats, sealers, and topcoats.

"Finishing Operation" means those activities in which a finishing material is applied to a substrate and is subsequently air-dried, cured in an oven, or cured by radiation.

"Sealer" means a finishing material used to seal the pores of a wood substrate before additional coats of finishing material are applied. A washcoat used to optimize aesthetics is not a sealer.

"Solids" means the part of the coating that remains after the coating is dried or cured; solids content is determined using data from EPA Method 24.

"Stain" means any color coat having a solids content by weight of no more than 8.0% that is applied in single or multiple coats directly to the substrate, including nongrain raising stains, equalizer stains, sap stains, body stains, no-wipe stains, penetrating stains, and toners.

"Topcoat" means the last film-building finishing material applied in a finishing system. Non-permanent final finishes are not topcoats.

"Touch-up and Repair" means the application of finishing materials to cover minor finishing imperfections.

"Washcoat" means a transparent special purpose coating having a solids content by weight of 12.0% or less that is applied over initial stains to protect and control color and to stiffen the wood fibers in order to aid sanding.

"Washoff operations" means those operations in which organic solvent is used to remove coating from a substrate.

"Wood furniture" means any product made of wood, a wood product such as rattan or wicker, or an engineered wood product such as particleboard that is manufactured under any of the following standard industrial classification codes: 2434, 2511, 2512, 2517, 2519, 2521, 2531, 2541, 2599, or 5712.

"Wood furniture manufacturing operations" means the finishing, cleaning, and washoff operations associated with the production of wood furniture or wood furniture components.

 

R307-343-4. VOC Content Limits.

(1) Each affected source subject to R307-343 shall limit VOC emissions by:

(a) Using the compliant coating method as described in R307-343-4(1)(a)(i) or using the control system method as described in R307-343-4(1)(a)(ii).

(i) Compliant coating method is the use of the topcoats or topcoat/sealer combinations in Table 1:

 

TABLE 1

Compliant Coating VOC Limitations
(values in pounds VOC per pound of solids, minus water and
exempt solvents (compounds not classified as VOC as defined 
in R307-101-2), as applied)


COATING CATEGORY       VOC Content Limitations

                      Effective Through    Effective Beginning
                      December 31,2014     January 1, 2015

Topcoats                         0.8                     0.4
Topcoat/Sealer combination

 Topcoat                         1.8                     0.9

 Sealer                          1.9                     0.9

Acid-cured, alkyd amino
topcoat/sealer combinations

 Acid-cured, alkyd amino topcoat  2.0                     1.0

 Acid-cured, alkyd amino vinyl    2.3                     1.2
 Sealer

 

(ii) Control system method is the use of a VOC control system achieving a 85% or greater emissions reduction.

(b) Using strippable spray booth coatings that contain no greater than 0.8 pounds VOC per pound solids as applied.

(c) Using closed containers for the storing of finishing, gluing, cleaning and washoff materials.

 

R307-343-5. Application Equipment Requirements.

(1) All coatings shall be applied using equipment having a minimum 65% transfer efficiency, except as allowed under R307-343-5(3) and operated according to the equipment manufacturer specifications. Equipment meeting the transfer efficiency requirement includes:

(a) Brush, dip, or roll coating;

(b) Electrostatic application; and

(c) High volume, low pressure (HVLP) spray equipment.

(2) Other coating application methods that achieve transfer efficiency equivalent to HVLP or electrostatic spray application methods may be used.

(3) Conventional air spray methods may be used under the following circumstances:

(a) To apply finishing materials that have no greater than 1.0 pound of VOC per pound of solids, as applied;

(b) For touch-up and repair under the following circumstances:

(i) The touchup and repair occurs after completion of the finishing operation; or

(ii) The touchup and repair occurs after the application of stain and before the application of any other type of finishing material, and the materials used for touchup and repair are applied from a container that has a volume of no more than 2.0 gallons;

(c) When the spray gun is aimed and triggered automatically, not manually;

(d) When the emissions from the finishing application station are directed to a control device;

(e) When the conventional air gun is used to apply finishing materials and the cumulative total usage of that finishing material is no more than 10% of the total gallons of finishing material used during the calendar year; or

(f) When the conventional air gun is used to apply stain on a part for which it is technically or economically infeasible to use any other spray application technology. The following criteria shall be used, either independently or in combination, to support the affected source's claim of technical or economic infeasibility:

(i) The production speed is too high or the part shape is too complex for one operator to coat the part and the application station is not large enough to accommodate an additional operator; or

(ii) The excessively large vertical spray area of the part makes it difficult to avoid sagging or runs in the stain.

 

R307-343-6. Add-on Controls Systems Operations.

(1) The owner or operator shall install and maintain an incinerator, carbon adsorption, or any other add-on emission control system, provided that the emission control system is operated and maintained in accordance with the manufacturer recommendations in order to maintain at least 85% capture and control efficiency. 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 R307-343-6(1).

(3) The owner or operator shall maintain records of key system parameters necessary to ensure compliance with R307-343-6. 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.

 

R307-343-7. Work Practices and Recordkeeping.

(1) Control techniques and work practices shall be implemented at all times to reduce VOC emissions from fugitive type sources. Control techniques and work practices shall include:

(a) Storing all VOC-containing coatings, thinners, and coating-related waste materials in closed containers;

(b) Ensuring that mixing and storage containers used for VOC-containing coatings, thinners, and coating-related waste material are kept closed at all times except when depositing or removing these materials;

(c) Minimizing spills of VOC-containing coatings, thinners, and coating-related waste materials; and

(d) Conveying VOC-containing coatings, thinners, and coating-related waste materials from one location to another in closed containers or pipes.

(2) The work practices for cleaning materials shall be implemented at all times to reduce VOC emissions from fugitive type sources. The work practices shall include:

(a) Storing all VOC-containing cleaning materials and used shop towels in closed containers;

(b) Ensuring that storage containers used for VOC-containing cleaning materials are kept closed at all times except when depositing or removing these materials;

(c) Minimizing spills of VOC-containing cleaning materials;

(d) Conveying VOC-containing cleaning materials from one location to another in closed containers or pipes; and

(e) Minimizing VOC emissions from cleaning of application, storage, mixing, and conveying equipment by ensuring that equipment cleaning is performed without atomizing the cleaning solvent and all spent solvent is captured in closed containers.

(3) All persons shall perform solvent cleaning operations with cleaning material having VOC content (excluding compounds not classified as VOC) of 0.21 pounds per gallon or less.

(4) For each calendar year, all sources subject to R307-343 shall maintain records demonstrating compliance with R307-343-4, R307-343-5 and R307-343-7.

(a) Records shall include, but shall not be limited to, inventory and product data sheets for all coatings and solvents subject to R307-343.

(b) These records shall be made available to the director upon request.

 

KEY: air pollution, wood furniture, coatings

Date of Enactment or Last Substantive Amendment: 2014

Notice of Continuation: February 1, 2012

Authorizing, and Implemented or Interpreted Law: 19-2-104(1)(a); 19-2-104(3)(e)