Okla. Admin. Code § 252:100-39-46

Current through Vol. 42, No. 1, September 16, 2024

Section 252:100-39-46 - Coating of parts and products

(a)Applicability. This Section shall apply only to industries located in Tulsa County which manufacture and/or coat metal parts and products, such as large farm machinery, small farm machinery, small appliances, commercial machinery, industrial machinery and fabricated metal products. Architectural coating, aerospace coating, and automobile refinishing are not included.

(b)Definitions. The following words and terms, when used in this Section, shall have the following meaning, unless the context clearly indicates otherwise.

(1)"Air or forced air dry coatings" means coatings that are dried by the use of air or forced warm air at temperatures up to 194°F.

(2)"Architectural coating" means coating used for residential, commercial and/or industrial buildings and their appurtenances.

(3)"Clear coat" means a coating that lacks color and opacity or is transparent and uses the undercoat as a reflectant base.

(4)"Extreme performance coatings" mean coatings designed for harsh exposure or extreme environmental conditions (e.g., exposure to the weather all of the time, temperature above 200^oF, detergents, abrasive and scouring agents, solvents, corrosive atmosphere or similar conditions).

(5)"Facility" means all emission sources located on contiguous properties under common control which are affected by the surface coating provisions of 252:100-37 and 252:100-39.

(6)"Powder" means a coating that is applied in a finely divided state by various methods, and becomes a continuous, solid film when the metal part or product is moved to an oven for curing.

(7)"Transfer efficiency" means the weight (or volume) of coating solids adhering to the surface being coated divided by the total weight (or volume) of coating solids delivered to the applicator.

(c)Existing source requirement. No owner or operator shall discharge or cause the discharge into the atmosphere from an existing coating line or individual coating operation any VOC in excess of the amounts listed in 252:100-39-46(d) as calculated by EPA method 24, 40 CFR Part 60.

(d)Standards. The following table enumerates the limitations for surface coatings in pounds of VOC per gallon of coating as applied (water and exempt compounds). If more than one limit listed in the table is applicable to a specific coating, then the least stringent limitation shall be applied.

Coating type	Limitationslbs/gal kg/l
Air or Forced Air Dry	3.5	0.42
Clear Coat	4.3	0.52
Extreme Performance	3.5	0.42
Powder	0.4	0.05
Other	3.0	0.36

(e)Emission factor. For the purposes of calculating an emission factor (EF) in pounds VOC per gallon of coating solids for use in the development of a plant-wide emission plan as described in 252:100-39-46(j)(1), the following formula will be utilized: EF = VD/l-(V+W) = VD/S where:

(1) V = volume fraction of VOC in coating.

(2) D = density of VOC in the coating.

(3) W = volume fraction of water in coating.

(4) S = l-(V+W) = volume fraction of solids in coating.

(f)Compliance. Compliance with the coating limits listed in 252:100-39-46(d) is to be calculated on a daily weighted average basis.

(g)VOC-containing materials. VOC-containing materials used for clean up shall be considered in the VOC content limits listed in 252:100-39-46(d) unless:

(1) the VOC containing materials are maintained in a closed container when not in use;

(2) closed containers are used for the disposal of cloth or paper or other materials used for surface preparation and cleanup;

(3) the spray equipment is disassembled and cleaned in a VOC vat and the vat is closed when not in use; or,

(4) the VOC containing materials used for the clean up of spray equipment are sprayed directly into closed containers.

(h)Exemptions. Facilities with a potential to emit 10 tons/year or less of VOC from coating operations are exempt from this Section. Once this limit is exceeded, the facility will always be subject to this Section.

(i)Alternate standard. Coatings with VOC contents in excess of those allowed by 252:100-39-46(d) may be used if both of the following conditions are met.

(1) Emissions are reduced to levels equivalent to those that would occur if the VOC content of the coatings met the limits contained in 252:100-39-46(d) and there is an overall control efficiency of at least:

(A) 85 percent by incineration;

(B) 85 percent by absorption; or,

(C) 85 percent by any other equipment of equivalent reliability and effectiveness.

(2) No air pollution, as defined by the Clean Air Act, results.

(j)Emission plan.

(1)Development of a plant-wide emission plan. An owner or operator may develop a plant-wide emission plan consistent with EPA's Emission Trading Policy as published in the December 4, 1986 Federal Register instead of having each coating line comply with the VOC content limitations contained in 252:100-39-46(d), if the following conditions are met.

(A) The owner or operator demonstrates by the methods prescribed in 252:100-5-2.1(d) that sufficient reductions in VOC emissions may be obtained by controlling other sources within the plant to the extent necessary to compensate for all excess emissions which result from one or more coating lines not achieving the prescribed limitation. Such demonstration shall be made in writing and shall include:

(i) a complete description of the coating line or lines that can not comply with the VOC content limitation in 252:100-39-46(d);

(ii) quantification of emissions, in terms of pounds per day of VOCs, which are in excess of the prescribed VOC content limitation for each coating line described in 252:100-39-46(j)(A)(i);

(iii) a complete description of how emissions will be decreased at specific sources to compensate for excess emissions from each coating line described in 252:100-39-46(j)(A)(i) and the date on which such reduction will be achieved;

(iv) a transfer efficiency based on a 60 percent baseline with emissions expressed in pounds of VOC per gallon of solids when transfer efficiency is used to compensate for excess emissions from spray painting operations;

(v) a demonstration of credits for improvements in transfer efficiency with in plant testing that complies with EPA methods.

(vi) quantification of emissions, in terms of pounds per day of VOCs, for each source both before and after the improvement or installation of any applicable control system, or any physical or operational changes to such a facility or facilities to reduce emissions and the date on which such reductions will be achieved; and,

(vii) a description of the procedures and methods used to determine the emissions of VOCs.

(B) The plant-wide emission reduction plan does not include decreases in emissions resulting from requirements of other applicable air pollution rules. The plant-wide emission reduction plan as described in the Emissions Trading Policy may include voluntary decreases in emissions accomplished through installation or improvement of a control system or through physical or operational changes to emission units, including permanently reduced production or closing a facility, located on the premises of a surface-coating operation.

(2)Compliance with a plant-wide emission plan. The implementation of a plant-wide emission reduction plan instead of compliance with the VOC content limitation prescribed in 252:100-39-46(d) has been expressly approved by the Executive Director and the EPA Administrator. Upon approval of a plan, any emissions in excess of those established for each facility under the plan shall be a violation of these rules.

(k)Compliance, testing, and monitoring requirements.

(1) The Division Director may require at the expense of the owner or operator a demonstration of compliance with the emission limits using EPA Methods 24, 24A, 1-4, 25, 25A, 25B in 40 CFR 60.444 or EPA Document 450/3-84-019. At a minimum, such test must show that the overall capture efficiency and destruction efficiency are equal to 85 percent (e.g., 90 percent capture efficiency multiplied by 95 percent destruction efficiency equals 85.5 percent system efficiency). The one hour bake option in Method 24 is required when doing compliance testing.

(2) Testing for plant-wide emission plans shall be conducted at the expense of the owner or operator to demonstrate compliance with the VOC content limits contained in 252:100-39-46(d).

(3) Monitoring shall be required of any owner or operator subject to this Section who uses add-on control equipment for compliance. Such monitoring shall include installation and maintenance of monitors to accurately measure and record operational parameters of all required control devices to ensure the proper functioning of those devices in accordance with design specifications, including:

(A) the exhaust temperature of direct flame incinerators and/or gas temperature immediately upstream and downstream of any catalyst bed;

(B) the total amount of VOCs recovered by carbon adsorption or other VOC recovery system during a calendar month; and,

(C) the dates and reasons for any maintenance and repair of the required control devices and the estimated quantity and duration of emissions during such activities;

(l)Reporting and recordkeeping.

(1) The owner or operator of a facility subject to this Section shall submit to the Division Director upon written request reports detailing specific VOC sources; the quantity of coatings used for a specific time period, VOC content of each coating; capture and control efficiencies; and any other information pertinent to the calculation of VOC emissions. The data necessary to supply the requested information shall be retained by the owner or operator for a minimum of two years.

(2) The owner or operator of a facility subject to this Section shall maintain records of any testing conducted at an affected facility in accordance with the provisions specified in 252:100-39-46(k), as well as all other records, for at least two years. These records shall be available to representatives of the DEQ upon request.

(m)Compliance date. The date of compliance with the requirements of this Section is December 31, 1990.

Okla. Admin. Code § 252:100-39-46

Added at 11 Ok Reg 977, eff 1-14-94 (emergency); Added at 11 Ok Reg 2031, eff 5-26-94; Amended at 16 Ok Reg 1774, eff 6-11-99; Amended at 20 Ok Reg 1576, eff 6-12-03