WSR 18-14-004

PROPOSED RULES

NORTHWEST CLEAN

AIR AGENCY

[Filed June 21, 2018, 8:32 a.m.]

Original Notice.

Proposal is exempt under RCW 70.94.141(1).

Title of Rule and Other Identifying Information: Regulation of the Northwest Clean Air Agency (NWCAA).

Hearing Location(s): On August 22, 2018, at 10:00 a.m., at the NWCAA Office, 1600 South 2nd Street, Mount Vernon, WA.

Date of Intended Adoption: September 13, 2018.

Submit Written Comments to: Mark Buford, 1600 South 2nd Street, Mount Vernon, WA 98273, email info@nwcleanairwa.gov, fax 360-428-1620, by August 22, 2018.

Assistance for Persons with Disabilities: Contact Laurie Caskey-Schreiber, phone 360-428-1617, fax 360-428-1620, email info@nwcleanairwa.gov, by August 15, 2018.

Purpose of the Proposal and Its Anticipated Effects, Including Any Changes in Existing Rules:

Spray Coating Operations (new NWCAA Section 508):

Public Records (amended NWCAA Section 106):

Definitions (amended NWCAA Section 200):

Adoption by Reference (amended NWCAA Section 104):

Amended NWCAA Section 106: Revised to reflect chapters 42.56 RCW and 44-14 WAC; subsection numbering to match current format.

Amended NWCAA Section 200 -

"Bottom Loading" definition: Copied from NWCAA Section 580 and clarified.

"Bulk Gasoline Plant" definition: Copied from NWCAA Section 580 and clarified.

"Closed Refinery System" definition: Copied from NWCAA Section 580 and clarified.

"Cutback Asphalt" definition: Copied from NWCAA Section 580 and clarified.

"Disposal System" definition: Copied from NWCAA Section 580 and clarified.

"Fuel Burning Equipment" definition: New language.

"Gasoline" definition: Copied from NWCAA Section 580 and clarified.

"Gasoline Dispensing Facility" definition: Copied from NWCAA Section 580 and clarified.

"Gasoline Loading Terminal" definition: Copied from NWCAA Section 580 and clarified.

"National Pollution Discharge Elimination System (NPDES)" definition: New language.

"Petroleum Refinery" definition: Copied from NWCAA Section 580 and clarified.

"Process Unit" definition: Copied from NWCAA Section 580 and clarified.

"Proper Attachment Fittings" definition: Copied from NWCAA Section 580 and clarified.

"Stage I Vapor Recovery" definition: New term and definition.

"Stage II Vapor Recovery" definition: Copied from NWCAA Section 580 and clarified.

"Submerged Fill Line" definition: Copied from NWCAA Section 580 and clarified.

"Submerged Loading" definition: Copied from NWCAA Section 580 and clarified.

"Suitable Closure or Suitable Cover" definition: Copied from NWCAA Section 580 and clarified

"Temporary Source" definition: New term and definition.

"Throughput" definition: Copied from NWCAA Section 580 and clarified.

"Transport Tank" definition: Copied from NWCAA Section 580 and clarified.

"Turnaround or Process Unit Turnaround" definition: Copied from NWCAA Section 580 and clarified.

"Vapor Balance System" definition: Copied from NWCAA Section 580 and clarified.

"Vapor Recovery System" definition: Copied from NWCAA Section 580 and clarified.

"Volatile Organic Compound (VOC)" definition: Revised to reference chapter 173-400 WAC.

"Waxy, Heavy Pour Crude Oil" definition: Copied from NWCAA Section 580 and clarified.

New NWCAA Section 508: New language.

Amended NWCAA Section 580.6: Revised language; subsection numbering changed to match current format.

Distributions for Section Being Replaced: Amended NWCAA Section 200 -

"Adverse Impact on Visibility" definition: Deleted as not used.

"Air Quality Standard" definition: Deleted as not used.

"Class I Area" definition: Deleted as not used.

"Combustion and Incineration Units" definition: Deleted as not used.

"Commence" definition: Deleted as not used.

"Complainant" definition: Deleted as not used.

"Existing Stationary Facility" definition: Deleted as not used.

"Federal Class I Area" definition: Deleted as not used.

"Federal Land Manager" definition: Deleted as not used.

"Fire Chief" definition: Deleted as not used.

"Hearings Board" definition: Deleted as not used.

"Hog Fuel Boiler" definition:Deleted as not used.

"Lowest Achievable Emission Rate (LAER)" definition: Deleted as not used.

"Mandatory Class I Federal Area" definition: Deleted as not used.

"Mercury" definition: Deleted as not used.

"Mercury Ore" definition: Deleted as not used.

"Natural Conditions" definition: Deleted as not used.

"Net Emissions Increase" definition: Deleted as not used.

"Non-Highway Mobile Source" definition: Deleted as not used.

"Pathological Waste" definition: Deleted as not used.

"Reasonably Attributable" definition: Deleted as not used.

"Stack Height" definition: Deleted as not used.

"Straw" definition: Deleted as not used.

Reasons Supporting Proposal: See bullet list above.

Statutory Authority for Adoption: Chapter 70.94 RCW.

Statute Being Implemented: RCW 70.94.141(1).

Rule is not necessitated by federal law, federal or state court decision.

Name of Proponent: NWCAA, governmental.

Name of Agency Personnel Responsible for Drafting, Implementation, and Enforcement: Mark Buford, 1600 South 2nd Street, Mount Vernon, WA, 360-428-1617.

A school district fiscal impact statement is not required under RCW 28A.305.135.

A cost-benefit analysis is not required under RCW 34.05.328.

This rule proposal, or portions of the proposal, is exempt from requirements of the Regulatory Fairness Act because the proposal:

Is exempt under RCW 70.94.141.

Explanation of exemptions: Not applicable under RCW 70.94.141.

June 21, 2018

Mark Buford

Executive Director

104.1 All provisions of ((State Law)) the following state rules that are in effect as of June 21, 2018 ((8, 2016, which are pertinent to the operation of the NWCAA,)) are hereby adopted by reference and made part of the Regulation of the NWCAA((. Specifically, there is adopted by reference the portions pertinent to the operation of the NWCAA of the Washington State Clean Air Act (chapter 70.94 RCW), the Administrative Procedure Act (chapter 34.05 RCW) and chapters 43.21A and 43.21B RCW and the following state rules)): chapter 173-400 WAC, (except - -025, -030, -035, -036, -040(1)((,)) & (7), -045, -075, -099, -100, -101, -102, -103, -104, -105(7), -110, -114, -115, -116, -171, -930), chapter 173-401 WAC, chapter 173-407 WAC, chapter 173-420 WAC, chapter 173-425 WAC, chapter 173-430 WAC, chapter 173-433 WAC, chapter 173-434 WAC, chapter 173-435 WAC, chapter 173-441 WAC, chapter 173-442 WAC, chapter 173-450 WAC, chapter 173-460 WAC, chapter 173-476 ((470 WAC, chapter 173-474)) WAC, chapter 173-((475))480 WAC, chapter 173-481 WAC, chapter 173-485((490)) WAC, chapter 173-491 WAC((, chapter 173-492 WAC, and chapter 173-495 WAC)). The requirements of the NWCAA Regulation apply in addition to the state-wide regulations adopted and enforced under this paragraph.

104.2 All provisions of the following federal rules that are in effect as of June 21, 2018 ((8, 2016)) are hereby adopted by reference and made part of the Regulation of the NWCAA: ((40 CFR Part 50 (National Primary and Secondary Ambient Air Quality Standards);)) 40 CFR Part 51 (Requirements for Preparation, Adoption, and Submittal of Implementation Plans) Appendix M; 40 CFR Part 60 (Standards of Performance For New Stationary Sources) subparts A, D, Da, Db, Dc, E, Ea, Eb, Ec, F, G, Ga, H, I, J, Ja, K, Ka, Kb, L, M, N, Na, O, P, Q, R, T, U, V, W, X, Y, Z, AA, AAa, CC, DD, EE, GG, HH, KK, LL, MM, NN, PP, QQ, RR, SS, TT, UU, VV, VVa, WW, XX, AAA, BBB, DDD, FFF, GGG, GGGa, HHH, III, JJJ, KKK, LLL, NNN, OOO, PPP, QQQ, RRR, SSS, TTT, UUU, VVV, WWW, XXX, AAAA, CCCC, EEEE, IIII, JJJJ, KKKK, LLLL, OOOO, OOOOa, QQQQ, and Appendix A - I; 40 CFR Part 61 (National Emission Standards For Hazardous Air Pollutants) Subparts A, C, D, E, F, J, L, M, N, O, P, V, Y, BB, FF; 40 CFR Part 62 (Approval and Promulgation of State Plans for Designated Facilities and Pollutants) Subpart LLL; 40 CFR Part 63 (National Emission Standards for Hazardous Air Pollutants for Source Categories) Subparts A, B, C, D, F, G, H, I, L, M, N, O, Q, R, T, U, W, X, Y, AA, BB, CC, DD, EE, GG, HH, II, JJ, KK, OO, PP, QQ, RR, SS, TT, UU, VV, WW, XX, YY, CCC, DDD, EEE, GGG, HHH, III, JJJ, LLL, MMM, NNN, OOO, PPP, QQQ, TTT, UUU, VVV, XXX, AAAA, CCCC, DDDD, EEEE, FFFF, GGGG, HHHH, IIII, JJJJ, KKKK, MMMM, NNNN, OOOO, PPPP, QQQQ, RRRR, SSSS, TTTT, UUUU, VVVV, WWWW, XXXX, YYYY, ZZZZ, AAAAA, BBBBB, CCCCC, DDDDD, EEEEE, FFFFF, GGGGG, HHHHH, IIIII, LLLLL, MMMMM, NNNNN, PPPPP, QQQQQ, RRRRR, SSSSS, TTTTT, UUUUU, WWWWW, YYYYY, ZZZZZ, BBBBBB, CCCCCC, EEEEEE, FFFFFF, GGGGGG, HHHHHH, JJJJJJ, MMMMMM, NNNNNN, QQQQQQ, SSSSSS, TTTTTT, VVVVVV, WWWWWW, XXXXXX, ZZZZZZ, AAAAAAA, DDDDDDD, EEEEEEE, and HHHHHHH; ((40 CFR Part 65 (Consolidated Federal Air Rule);)) and 40 CFR Parts 72, 73, 74, 75, 76, 77 and 78 (Acid Rain Program).

PASSED: July 8, 1970 AMENDED: April 14, 1993, September 8, 1993, December 8, 1993, October 13, 1994, May 11, 1995, February 8, 1996, May 9, 1996, March 13, 1997, May 14, 1998, November 12, 1998, November 12, 1999, June 14, 2001, July 10, 2003, July 14, 2005, November 8, 2007, June 10, 2010, June 9, 2011, November 17, 2011, August 9, 2012, March 14, 2013, September 11, 2014, August 13, 2015, August 11, 2016, September 13, 2018

((106.1 The purpose of this section is to implement the requirements of RCW 42.56 Public Records.

106.95 Access to file cabinets, shelves, and other storage areas is restricted to NWCAA personnel, unless other arrangements are made with the Control Officer or designee.))

PASSED: August 9, 1978 AMENDED: November 8, 2007, September 13, 2018

ACTUAL EMISSIONS - The actual rate of emissions of a pollutant from an emission unit, as determined in accordance with ((a)) (A) through ((c)) (C) of this definition.

((a)) (A) In general, the actual emissions as of a particular date shall equal the average rate, in tons per year, at which the emissions unit actually emitted the pollutant during a two-year period which precedes the particular date and which is representative of normal stationary source operation. The NWCAA shall allow the use of a different time period upon a determination by the NWCAA that it is more representative of normal stationary source operation. Actual emissions shall be calculated using the emissions unit's actual operating hours, production rates, and types of materials processed, stored, or combusted during the selected time period.

((b)) (B) The NWCAA may presume that stationary source-specific allowable emissions for the unit are equivalent to the actual emissions of the emissions unit.

((c)) (C) For any emissions unit that ((which)) has not begun normal operations on the particular date, actual emissions shall equal the potential to emit of the emissions unit on that date.

((ADVERSE IMPACT ON VISIBILITY - Adverse impact on visibility is defined in WAC 173-400-117.))

AIR CONTAMINANT or AIR POLLUTANT - Dust, fumes, mist, smoke, other particulate matter, vapor, gas, odorous substance, or any combination thereof. (("Air pollutant" means the same as "air contaminant."))

AIR POLLUTION - The presence in the outdoor atmosphere of one or more air contaminants in sufficient quantities and of such characteristics and duration as is, or is likely to be, injurious to human health, plant, or animal life, or property, or which unreasonably interfere with enjoyment of life and property. For the purposes of ((this r)) the NWCAA Regulation, air pollution shall not include air contaminants emitted in compliance with chapter 17.21 RCW, the Washington Pesticide Application Act, which regulates the application and control of the use of various pesticides.

AIR QUALITY OBJECTIVE - The concentration and exposure time of one or more air contaminants in the ambient air below which, according to available knowledge, undesirable effects will not occur.

((AIR QUALITY STANDARD - An established concentration, exposure time and frequency of occurrence of one or more air contaminants in the ambient air which shall not be exceeded.))

ALLOWABLE EMISSIONS - The emission rate of a stationary source calculated using the maximum rated capacity of the stationary source (unless the stationary source is subject to federally enforceable limits which restrict the operating rate, or hours of operation, or both) and the most stringent of the following:

((a)) (A) The applicable standards as in 40 CFR Part 60, 61 or 63;

((b)) (B) Any applicable SIP emissions limitation including those with a future compliance date; or

((c)) (C) The emissions rate specified as a federally enforceable permit condition, including those with a future compliance date.

AMBIENT AIR - The surrounding outside air.

AMBIENT AIR QUALITY STANDARD or AIR QUALITY STANDARD - An established concentration, exposure time, and frequency of occurrence of one or more air contaminants(((s))) in the ambient air which shall not be exceeded.

AMBIENT AIR MONITORING STATION - A station so designated by the Control Officer for the purpose of measuring air contaminant concentrations in the ambient air. ((The station location and sampling probe locations shall be designated by the Control Officer utilizing as a guide 40 CFR Part 58, Appendix "D" Network Design and Appendix "E" Probe Siting Criteria.))

ATTAINMENT AREA - A geographic area designated by EPA at 40 CFR Part 81 as having attained the National Ambient Air Quality Standard (NAAQS) for a given criteria pollutant.

BEGIN ACTUAL CONSTRUCTION - In general, initiation of physical on-site construction activities on an emissions unit which are of a permanent nature. Such activities include, but are not limited to, installation of building supports and foundations, laying underground pipe work, and construction of permanent storage structures. With respect to a change in method of operation, this term refers to those on-site activities other than preparatory activities which mark the initiation of the change.

BEST AVAILABLE CONTROL TECHNOLOGY (BACT) - An emission limitation based on the maximum degree of reduction for each air pollutant subject to regulation under chapter 70.94 RCW emitted from or which results from any new or modified stationary source, which the NWCAA, on a case-by-case basis, taking into account energy, environmental, and economic impacts, and other costs, determines is achievable for such stationary source or modification through application of production processes and available methods, systems, and techniques, including fuel cleaning, clean fuels, or treatment or innovative fuel combustion techniques for control of each such pollutant. In no event shall application of the (("))Best Available Control Technology((")) result in emissions of any pollutants which will exceed the emissions allowed by any applicable standard under 40 CFR Parts 60, 61, and 63. Emissions from any stationary source utilizing clean fuels, or any other means, to comply with this paragraph shall not be allowed to increase above levels that would have been required under the definition of BACT in the Federal Clean Air Act as it existed prior to enactment of the Clean Air Act Amendments of 1990.

BOARD - Board of Directors of the NWCAA.

BUBBLE - A set of emission limits which allows an increase in emissions from a given emissions unit in exchange for a decrease in emissions from another emissions unit, pursuant to RCW 70.94.155 and WAC 173-400-120.

BUSINESS ESTABLISHMENT - A facility and/or place where commercial and/or professional dealings are conducted.

CATALYTIC CRACKING UNIT - A petroleum refinery cracking unit of the fluid or compact moving bed type consisting of a reactor, regenerator, and fractionating tower and, where employed, a carbon monoxide boiler.

((CLASS I AREA - Any area designated under section 162 or 164 of the Federal Clean Air Act as a Class I area. The following areas are the Class I areas in Washington state:

i) Spokane Indian Reservation))

((COMBUSTION and INCINERATION UNITS - Units using combustion for waste disposal, steam production, chemical recovery or other process requirements; but excludes open burning.

(2) Entered into binding agreements or contractual obligations, which cannot be cancelled or modified without substantial loss to the owner or operator, to undertake a program of actual construction of the stationary source to be completed within a reasonable time.))

COMMERCIAL COMPOSTING FACILITY - A facility that is operated for the purpose of selling or off-site distribution of compost produced via the controlled biological degradation of organic material.

((COMPLAINANT - Any person who files a complaint.))

COMPLIANCE ORDER - An order issued by the NWCAA pursuant to the authority of RCW 70.94.332 and 70.94.141(3) that addresses or resolves a compliance issue regarding any requirement of chapter 70.94 RCW or the rules adopted thereunder. Compliance orders may include, but are not limited to, time schedules and/or necessary actions for preventing, abating, or controlling emissions.

CONCEALMENT - Any action taken to reduce the observed or measured concentrations of a pollutant in a gaseous effluent while, in fact, not reducing the total amount of pollutant discharged.

CONTROL FACILITY - Includes any treatment works, control devices and disposal systems, machinery equipment, structures, property or any part of accessories thereof, installed or acquired for the primary purpose of reducing, controlling, or disposing of industrial waste which, if released to the outdoor atmosphere, could cause air pollution.

CONTROL OFFICER - Air Pollution Control Officer of the NWCAA, also known as Director.

CRITERIA POLLUTANT - A pollutant for which there is established a National Ambient Air Quality Standard at 40 CFR Part 50. The criteria pollutants are carbon monoxide (CO), particulate matter, ozone (O3), sulfur dioxide (SO2), lead (Pb), and nitrogen dioxide (NO2).

DAYLIGHT HOURS - The hours between official sunrise and official sunset.

ECOLOGY - Washington State Department of Ecology (WDOE).

EMISSION - A release of air contaminants into the ambient air.

EMISSION REDUCTION CREDIT (ERC) - A credit granted pursuant to WAC 173-400-131. This is a voluntary reduction in emissions.

EMISSION POINT - The location (place in horizontal plane and vertical elevation) from which an emission enters the atmosphere.

EMISSION STANDARD, ((and)) EMISSION LIMITATION, or EMISSION LIMIT - A requirement established under the Federal Clean Air Act or chapter 70.94 RCW which limits the quantity, rate, or concentration of emissions of air contaminants on a continuous basis, including any requirement relating to the operation or maintenance of a stationary source to assure continuous emission reduction and any design, equipment work practice, or operational standard adopted under the Federal Clean Air Act or chapter 70.94 RCW.

EMISSIONS UNIT - Any part of a stationary source or source which emits or would have the potential to emit any pollutant subject to regulation under the Federal Clean Air Act, ((C)) chapter 70.94 RCW, ((C)) chapter 70.98 RCW, or the Regulation of the NWCAA.

EQUIPMENT - Any stationary or portable device or any part thereof capable of causing the emission of any contaminant into the atmosphere or ambient air.

EXCESS EMISSIONS - Emissions of an air pollutant in excess of any applicable emission standard.

((EXISTING STATIONARY FACILITY - Is defined in WAC 173-400-151.))

FEDERAL CLEAN AIR ACT (FCAA) - The Federal Clean Air Act, also known as Public Law 88-206, 77 Stat. 392, December 17, 1963, 42 U.S.C. 7401 et seq., as last amended by the Clean Air Act Amendments of 1990, P.L. 101-549, November 15, 1990.

((FEDERAL CLASS I AREA - Any federal land that is classified or reclassified Class I area. The following areas are the Class I areas in Washington state:

FEDERAL LAND MANAGER The secretary of the department with authority over federal lands in the United States. This includes, but is not limited to, the U.S. Department of the Interior - National Park Service, the U.S. Department of Agriculture - Forest Service, and/or the U.S. Department of the Interior - Bureau of Land Management.))

FEDERALLY ENFORCEABLE - All limitations and conditions which are enforceable by EPA, including those requirements developed under 40 CFR Parts 60, 61 and 63, requirements within the Washington SIP, requirements within any permit established under 40 CFR 52.21 or order of approval under a SIP-approved new source review regulation, or any voluntary limits on emissions pursuant to WAC 173-400-091.

((FIRE CHIEF - A state, county, or city fire marshal, city fire chief, chief of each County Fire Protection District or authorized forestry officials from the Washington State Department of Natural Resources.))

FUEL BURNING EQUIPMENT - ((Equipment that produces hot air, hot water, steam, or other heated fluids by external combustion of fuel.)) Any device used for the external combustion of fuel for the primary purpose of producing useful heat or power.

FUGITIVE DUST - A particulate emission made airborne by forces of wind, man's activity, or both. Unpaved roads, construction sites, and tilled land are examples of areas that generate ((originate)) fugitive dust. Fugitive dust is a type of fugitive emission.

FUGITIVE EMISSIONS - Emissions which could not reasonably pass through a stack, chimney, vent, or other functionally equivalent opening.

GREENHOUSE GASES (GHGs) - Includes carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.

HAZARDOUS AIR POLLUTANT (HAP) - Any air pollutant listed in or pursuant to Section 112(b) of the Federal Clean Air Act, 42 U.S.C. §7412.

((HEARINGS BOARD - The state Pollution Control Hearings Board or equivalent local hearings board as set forth in RCW 43.21B.))

HEAT INPUT CAPACITY - ((Is the)) The maximum actual or design heat capacity, whichever is greater, stated in British thermal units per hour (BTU/hr), generated by the stationary source and ((shall be)) expressed using the higher heating value of the fuel unless otherwise specified.

((HOG FUEL BOILER - A boiler that utilizes wood, commonly called "hog fuel", as one source of fuel.))

INCINERATOR - A furnace used primarily for the thermal destruction of waste.

INSTALLATION - The placement, assemblage, or construction of equipment or control equipment at the premises where the equipment or control equipment will be used, and includes all preparatory work at such premises.

((LOWEST ACHIEVABLE EMISSION RATE (LAER) - For any stationary source that rate of emissions which reflects the more stringent of:

In no event shall the application of this term permit a proposed new or modified stationary source to emit any pollutant in excess of the amount allowable under applicable New Source Performance Standards.))

MAJOR MODIFICATION - ((a)) (A) (("))Major modification((")) as it applies to stationary sources subject to requirements for new stationary sources in nonattainment areas, is defined in WAC 173-400-112. ((b)) (B) (("))Major modification((")) as it applies to stationary sources subject to requirements for new stationary sources in attainment or unclassified areas is defined in WAC 173-400-113.

MAJOR STATIONARY SOURCE - ((a)) (A) (("))Major stationary source((")) as it applies to stationary sources subject to requirements for new stationary sources in nonattainment areas is defined in WAC 173-400-112. ((B)) (B) (("))Major stationary source((")) as it applies to stationary sources subject to requirements for new stationary sources in attainment or unclassified areas is defined in WAC 173-400-113.

((MANDATORY CLASS I FEDERAL AREA - any area defined in Section 162(a) of the Federal Clean Air Act. The following areas are the mandatory Class I federal areas in Washington state:

h) Pasayten Wilderness))

MASKING - The mixing of a chemically nonreactive control agent with a malodorous gaseous effluent to change the perceived odor.

MATERIAL((S)) HANDLING - The handling, transporting, loading, unloading, storage, and transfer of materials with no significant chemical or physical alteration.

((MERCURY - The element mercury, excluding any associated elements and includes mercury in particulates, vapors, aerosols, and compounds.

MERCURY ORE - A mineral mined specifically for its mercury content.))

MODIFICATION - Any physical change in, or change in the method of operation of, a stationary source that increases the amount of any air contaminant emitted by such stationary source or that results in the emissions of any air contaminant not previously emitted. The term modification shall be construed consistent with the definitions of modification in Section 7411, Title 42, United States Code, and with rules implementing that section.

MULTIPLE CHAMBER INCINERATOR - Any incinerator consisting of two or more combustion chambers in series, employing adequate design parameters necessary for maximum combustion of the material to be burned.

NATIONAL AMBIENT AIR QUALITY STANDARDS (NAAQS) - An ambient air quality standard set by EPA at 40 CFR Part 50 and includes standards for carbon monoxide (CO), particulate matter, ozone (O3), sulfur dioxide (SO2), lead (Pb), and nitrogen dioxide (NO2).

NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS (NESHAP((S))) - The federal rules in 40 CFR Part 61.

NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES - The federal rules in 40 CFR Part 63.

NATIONAL POLLUTION DISCHARGE ELIMINATION SYSTEM (NPDES) - ((Shall be referred to as NPDES.)) The permit program that addresses water pollution by regulating facilities that discharge to waters of the United States.

((NATURAL CONDITIONS - Naturally occurring phenomena that reduce visibility as measured in terms of light extinction, visual range, contrast, or coloration.

NET EMISSIONS INCREASE - a) Net emissions increase as it applies to stationary sources subject to requirements for new sources in nonattainment areas, is defined in WAC 173-400-112. b) Net emissions increase as it applies to stationary sources subject to requirements for new sources in attainment or unclassified areas, is defined in WAC 173-400-113.))

NEW SOURCE - means one or more of the following:

((a)) (A) The construction or modification of a stationary source that increases the amount of any air contaminant emitted by such stationary source or that results in the emission of any air contaminant not previously emitted((,))

((b)) (B) The restart of a stationary source after permanent shutdown

((c)) (C) Any other project that constitutes a new stationary source under the Federal Clean Air Act((.))

NEW SOURCE PERFORMANCE STANDARDS (NSPS) - The federal rules in 40 CFR Part 60.

NONATTAINMENT AREA - A geographic area designated by EPA at 40 CFR Part 81 as exceeding a National Ambient Air Quality Standard (NAAQS) for a given criteria pollutant. An area is nonattainment only for the pollutants for which the area has been designated nonattainment.

((NON HIGHWAY MOBILE SOURCE - A source which is neither used on nor does ordinarily travel on the public roadways and is powered by an internal combustion or other type engine. These sources include, but are not limited to, farm tractors, bulldozers, earthmovers, ships, boats, railroad locomotives and non-commercial aircraft.))

NONROAD ENGINE - ((a)) (A) Except as discussed in ((b)) (B) of this definition, a nonroad engine is any internal combustion engine:

((1)) (1) In or on a piece of equipment that is self-propelled or serves a dual purpose by both propelling itself and performing another function (such as garden tractors, off-highway mobile cranes and bulldozers); or

((2)) (2) In or on a piece of equipment that is intended to be propelled while performing its function (such as lawnmowers and string trimmers); or

((3)) (3) That, by itself or in or on a piece of equipment, is portable or transportable, meaning designed to be and capable of being carried or moved from one location to another. Indicia of transportability include, but are not limited to, wheels, skids, carrying handles, dolly, trailer, or platform.

((b)) (B) An internal combustion engine is not a nonroad engine if:

((1)) (1) The engine is used to propel a motor vehicle or a vehicle used solely for competition, or is subject to standards promulgated under section 202 of the Federal Clean Air Act; or

((2)) (2) The engine is regulated by a New Source Performance Standard (NSPS) promulgated under section 111 of the Federal Clean Air Act; or

((3)) (3) The engine otherwise included in (((a))A) (3) of this definition remains or will remain at a location for more than ((twelve)) 12 consecutive months or a shorter period of time for an engine located at a seasonal source. A location is any single site at a building, structure, facility, or installation. Any engine (or engines) that replaces an engine at a location and that is intended to perform the same or similar function as the engine replaced will be included in calculating the consecutive time period. An engine located at a seasonal source is an engine that remains at a seasonal source during the full annual operating period of the seasonal source. ((As)) A seasonal source is a stationary source that remains in a single location on a permanent basis (i.e., at least two years) and that operates at that single location approximately three months (or more) each year. This paragraph does not apply to an engine after the engine is removed from the location.

NOTICE OF CONSTRUCTION APPLICATION - A written application to ((permit)) allow construction of a new source, modification of an existing stationary source or replacement or substantial alteration of control technology at an existing stationary source.

ODOR - That property ((or)) of a substance ((which)) that enables ((allows)) its detection((s)) by the sense of smell and/or taste.

ODOR SOURCE - Any source that incurs two verified odor nuisance complaints within a ((twelve)) 12 month time period. Odor nuisance complaints are verified by a NWCAA representative according to the criteria ((of the)) in NWCAA ((Regulation)) Sections 530((.1)) and 535((.3)).

OPACITY - The degree to which an object seen through a plume is obscured, stated as a percentage.

ORDER - Any order issued by the NWCAA pursuant to chapter 70.94 RCW, including, but not limited to RCW 70.94.332, 70.94.152, 70.94.153, and 70.94.141(3), and includes, where used in the generic sense, the terms order, compliance order, order of approval, and regulatory order.

ORDER OF APPROVAL((, APPROVAL ORDER)) or ORDER OF APPROVAL TO CONSTRUCT (OAC) - A regulatory order issued by the NWCAA to approve the notice of construction application for a proposed new source or modification or the replacement or substantial alteration of control technology at an existing stationary source.

OWNER, OPERATOR, OR AGENT - Includes the person who leases, supervises, or operates the equipment or control facility.

OZONE DEPLETING SUBSTANCE - Substance listed in Appendices A and B to Subpart A of 40 CFR Part 82.

PARTICLE - A small discrete mass of solid or liquid matter.

PARTICULATE MATTER or PARTICULATES - Any airborne finely divided solid or liquid material with an aerodynamic diameter smaller than 100 micrometers.

PARTS PER MILLION (PPM) - parts of a contaminant per million parts of gas, by volume, exclusive of water or particulates.

((PATHOLOGICAL WASTE - Human and animal remains consisting of carcasses, organs and solid organic wastes, consisting of up to 85% moisture, 5% incombustible solids.))

PERMANENT SHUTDOWN - Permanently stopping or terminating all processes at a "stationary source" or "emissions unit." Except as provided in subsections ((a)) (A) and ((b)) (B), whether a shutdown is permanent depends on the intention of the owner or operator at the time of the shutdown as determined from all facts and circumstances, including the cause of the shutdown.

((a)) (A) A shutdown is permanent if the owner or operator files a report of shutdown, as provided in NWCAA ((Regulation)) Section((s)) 325. Failure to file such a report does not mean that a shutdown was not permanent.

((b)) (B) Any shutdown lasting ((two (2))) 2 or more years is considered to be permanent.

((PERMITTING AGENCY - Ecology or the local air pollution control authority with jurisdiction over the source.))

PERSON - An individual, firm, public or private corporation, association, partnership, political subdivision, municipality, or government agency.

PETROLEUM LIQUIDS - Petroleum, condensate, and any finished or intermediate products manufactured in a petroleum refinery but does not mean Numbers 2 through ((Number)) 6 fuel oils as specified in ((A.S.T.M.)) ASTM D396-((69))78, 89, 90, 92, 96, or 98, gas turbine fuel oils Numbers 2-GT through 4-GT as specified in ((A.S.T.M.)) ASTM D2880-((71))78 or 96, or diesel fuel oils Numbers 2-D and 4-D as specified in ((A.S.T.M.)) ASTM D975-((68))78, 96, or 98a.

PM2.5 - Particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers as measured by a reference method based on 40 CFR Part 50 Appendix L and designated in accordance with 40 CFR Part 53 or by an equivalent method designated in accordance with 40 CFR Part 53.

PM2.5 EMISSIONS - Finely divided solid or liquid material, including condensable particulate matter, with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers emitted to the ambient air as measured by an applicable reference method, or an equivalent or alternate method, specified in 40 CFR Part 51 or by a test method specified in the SIP. PM2.5 emissions are also known as primary PM2.5, direct PM2.5, total PM2.5, or combined filterable PM2.5 and condensable PM. These solid particles are emitted directly from an air emissions source or activity, or are the gaseous emissions or liquid droplets from an air emissions source or activity that condense to form PM at ambient temperatures.

PM10 - Particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers as measured by a reference method based on 40 CFR Part 50 Appendix J and designated in accordance with 40 CFR Part 53 or by an equivalent method designated in accordance with 40 CFR Part 53.

PM10 EMISSIONS - Finely divided solid or liquid material, including condensible particulate matter, with an aerodynamic diameter less than or equal to a nominal 10 micrometers emitted to the ambient air as measured by an applicable reference method, or an equivalent or alternate method, specified in Appendix M of 40 CFR Part 51 or by a test method specified in the SIP.

PORTLAND CEMENT PLANT - Any facility manufacturing ((P)) portland cement by either the wet or dry process.

POTENTIAL TO EMIT (PTE) - The maximum capacity of a stationary source to emit a pollutant under its physical and operational design. Any physical or operational limitation on the capacity of the stationary source to emit a pollutant, including air pollution control equipment and restrictions on hours of operation or on the type or amount of material combusted, stored, or processed, shall be treated as part of its design only if the limitation or the effect it would have on emissions is federally enforceable. Secondary emissions do not count in determining the potential to emit of a stationary source.

PREVENTION OF SIGNIFICANT DETERIORATION (PSD) - The program in WAC 173-400-((720))700 through 750.

PROCESS - A physical and/or chemical modification or treatment of a material from its previous state or condition.

((REASONABLY ATTRIBUTABLE - Attributable by visual observation or any other technique the state deems appropriate.))

REASONABLY AVAILABLE CONTROL TECHNOLOGY (RACT) - The lowest emission limit that a particular stationary source or source category is capable of meeting by the application of control technology that is reasonably available considering technological and economic feasibility. RACT is determined on a case-by-case basis for an individual stationary source or source category taking into account the impact of the stationary source upon air quality, the availability of additional controls, the emission reduction to be achieved by additional controls, the impact of additional controls on air quality, and the capital and operating costs of the additional controls. RACT requirements for any stationary source or source category shall be adopted only after notice and opportunity for comment are afforded.

REFUSE - Putrescible and non-putrescible solid waste including garbage, rubbish, ashes, dead animals, abandoned automobiles, solid market wastes, street cleanings, and industrial wastes including waste disposal in industrial salvage.

REFUSE BURNING EQUIPMENT - Equipment designed to burn waste (refuse) material, scrap or combustion remains.

REGISTRATION - ((t)) The process of identifying, delineating, and itemizing all air contaminant sources within the jurisdiction of the NWCAA including the making of periodic reports, as required, by the persons operating or responsible for such sources and may contain information concerning location, size, height of contaminant outlets, processes employed, nature of the contaminant emissions and such other information as is relevant to air pollution and available or reasonably capable of being assembled.

REGULATORY ORDER - An ((o)) Order issued by the NWCAA to an air contaminant source or sources pursuant to chapter 70.94 RCW including, but not limited to, RCW 70.94.141(3). A ((r)) Regulatory ((o)) Order includes an ((o)) Order ((which applies to)) that ((source or sources)) requires compliance with any applicable provision of chapter 70.94 RCW ((or the)), rules adopted thereunder, or the NWCAA Regulation.

SMOKE - Gas borne particulate matter in a sufficient amount to be observable.

SOLID WASTE - All putrescible and nonputrescible solid and semisolid wastes, including but not limited to garbage, rubbish, ashes, industrial wastes, swill, demolition and construction wastes, abandoned vehicles or parts thereof, and discarded commodities. This includes all liquid, solid, and semisolid materials, which are not primary products of public, private, industrial, commercial, mining, and agricultural operations. Solid waste includes but is not limited to septage from septic tanks, dangerous waste, and problem wastes. Solid waste does not include wood waste or sludge from ((waste water)) wastewater treatment plants.

SOURCE - All of the emissions unit(s) including quantifiable fugitive emissions, that are located on one or more contiguous or adjacent properties, and are under the control of the same person or persons under common control, whose activities are ancillary to the production of a single product or functionally related groups of products. Activities shall be considered ancillary to the production of a single product or functionally related group of products if they belong to the same major group (i.e., which have the same two digit code) as described in the Standard Industrial Classification Manual, 1972, as amended by the 1977 Supplement.

SOURCE CATEGORY - All sources of the same type or classification.

STACK - Any point in a stationary source designed to emit solids, liquids, or gases into the air, including a pipe or duct.

((STACK HEIGHT - The height of an emission point measured from the ground-level elevation at the base of the stack.))

STANDARD CONDITIONS - A temperature of 20 degrees C (68 degrees F) and a pressure of 760 mm (29.92 inches) of mercury.

STANDARD CUBIC FOOT OF GAS - That amount of gas which would occupy a cube having dimensions of one foot on each side, if the gas were free of water vapor at a pressure of 14.7 psia and a temperature of 68 degrees F.

STATE ACT - Washington Clean Air Act (((RCW)) chapter 70.94 RCW) and chapter 43.21B RCW.

STATE IMPLEMENTATION PLAN (SIP) ((or WASHINGTON SIP)) - Washington and NWCAA SIP in 40 CFR Part 52, subpart WW. The SIP contains state, local, and federal regulations and orders, the state plan, and compliance schedules approved and promulgated by EPA((,)) for the purpose of implementing, maintaining, and enforcing National Ambient Air Quality Standards.

STATIONARY SOURCE - Any building, structure, facility, or installation which emits or may emit any air contaminant. This term does not include emissions resulting directly from an internal combustion engine for transportation purposes or from a nonroad engine or nonroad vehicle as defined in Section 216(11) of the Federal Clean Air Act.

((STRAW - All vegetative material of agricultural origin other than seed removed by swathing, combining or cutting.))

SULFURIC ACID PLANT - Any facility producing sulfuric acid by the contact process by burning elemental sulfur, alkylation acid, hydrogen sulfide, or acid sludge.

SYNTHETIC MINOR - Any stationary source whose potential to emit has been limited below applicable thresholds by means of a federally enforceable order, rule, or permit condition.

TON - Short ton or 2,000 pounds (a long ton is considered 2,240 pounds).

TOTAL SUSPENDED PARTICULATE - Particulate matter as measured by the method described in 40 CFR Part 50 Appendix B.

TOXIC AIR POLLUTANT (TAP) or TOXIC AIR CONTAMINANT - Any toxic air pollutant listed in WAC 173-460-150. The term toxic air pollutant may include particulate matter and volatile organic compounds if an individual substance or a group of substances within either of these classes is listed in WAC 173-460-150. The term toxic air pollutant does not include particulate matter and volatile organic compounds as generic classes of compounds.

TRUE VAPOR PRESSURE - The equilibrium partial pressure exerted by a hydrocarbon at storage conditions.

UNCLASSIFIABLE AREA - An area that cannot be designated attainment or nonattainment on the basis of available information as meeting or not meeting the National Ambient Air Quality Standard for the criteria pollutant and that is listed by EPA at 40 CFR Part 81.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY - ((Shall be referred)) Referred to as EPA.

VOLATILE ORGANIC COMPOUND (VOC) - Any carbon compound that participates in atmospheric photochemical reactions as defined in WAC 173-400-030(95). ((Any carbon compound that participates in atmospheric photochemical reactions. a) Exceptions. The following compounds are not a VOC: Acetone; carbon monoxide; carbon dioxide; carbonic acid; metallic carbides or carbonates; ammonium carbonate, methane; ethane; methylene chloride (dichloromethane); 1,1,1-trichloroethane (methyl chloroform); 1,1,2-trichloro 1,2,2-trifluoroethane (CFC-113); trichlorofluoromethane (CFC-11); dichlorodifluoromethane (CFC-12); chlorodifluoromethane (HCFC-22); trifluoromethane (HFC-23); 1,2-dichloro 1,1,2,2-tetrafluoroethane (CFC-114); chloropentafluoroethane (CFC-115); 1,1,1-trifluoro 2,2-dichloroethane (HCFC-123); 1,1,1,2-tetrafluoroethane (HFC-134a); 1,1-dichloro 1-fluoroethane (HCFC-141b); 1-chloro 1,1-difluoroethane (HCFC-142b); 2-chloro 1,1,1,2-tetrafluoroethane (HCFC- 124); pentafluoroethane (HFC-125); 1,1,2,2-tetrafluoroethane (HFC-134); 1,1,1-trifluoroethane (HFC-143a); 1,1-difluoroethane (HFC-152a); parachlorobenzotrifluoride (PCBTF); cyclic, branched, or linear completely methylated siloxanes; perchloroethylene (tetrachloroethylene); 3,3-dichloro-1,1,1,2,2-pentafluoropropane (HCFC-225ca); 1,3-dichloro-1,1,2,2,3- pentafluoropropane (HCFC-225cb); 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC 43-10mee); difluoromethane (HFC-32); ethylfluoride (HFC-161); 1,1,1,3,3,3-hexafluoropropane (HFC-236fa); 1,1,2,2,3-pentafluoropropane (HFC-245ca); 1,1,2,3,3-pentafluoropropane (HFC-245ea); 1,1,1,2,3-pentafluoropropane (HFC- 245eb); 1,1,1,3,3-pentafluoropropane (HFC-245fa); 1,1,1,2,3,3-hexafluoropropane (HFC-236ea); 1,1,1,3,3-pentafluorobutane (HFC-365mfc); chlorofluoromethane (HCFC-31); 1 chloro-1-fluoroethane (HCFC-151a); 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a); 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy-butane (C4F9OCH3); 2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)2CFCF2OCH3); 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane (C4F9OC2H5); 2-(ethoxydifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane((CF3)2CFCF2OC2H5); methyl acetate, 1,1,1,2,2,3,3-heptafluoro-3-methoxy-propane (n-C3F7OCH3 or HFE-7000); 3-ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-dodecafluoro-2-(trifluoromethyl) hexane (HFE-7500) 1,1,1,2,3,3,3-heptafluoropropane (HFC 227ea); methyl formate (HCOOCH3); 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-trifluoromethyl-pentane (HFE-7300); dimethyl carbonate; propylene carbonate; dimethyl carbonate; trans- 1,3,3,3-tetrafluoropropene; HCF2OCF2H (HFE-134); HCF2OCF2OCF2H (HFE-236cal2); HCF2OCF2CF2OCF2H (HFE-338pcc13); HCF2OCF2OCF2CF2OCF2H (H-Galden 1040x or alden ZT 130 (or 150 or 180)); trans 1-chloro-3,3,3-trifluoroprop-1-ene; 2,3,3,3-tetrafluoropropene; 2-amino-2-methyl-1-propanol; and perfluorocarbon compounds that fall into these classes:

d) The following compounds are VOC for purposes of all recordkeeping, emissions reporting, photochemical dispersion modeling and inventory requirements which apply to VOC and shall be uniquely identified in emission reports, but are not VOC for purposes of VOC emissions limitations or VOC content requirements: Tertiary-butyl acetate.))

WASHINGTON ADMINISTRATIVE CODE (WAC) - Regulations of executive branch agencies in the state of Washington, such as the Department of Ecology.

WOOD WASTE BURNER - A sheet metal or other type of enclosure to form a truncated cone or a single chamber cylindrically shaped incinerator line or constructed of suitable refractory material that ((which employs controlled fuel feed, tangential overfire and underfire air supply system, and)) is designed and used for the disposal of wood and bark wastes by incineration.

PASSED: January 8, 1969 AMENDED: October 31, 1969, September 3, 1971, June 14, 1972, July 11, 1973, February 14, 1973, January 9, 1974, October 13, 1982, November 14, 1984, October 13, 1994, February 8, 1996, May 9, 1996, March 13, 1997, November 12, 1998, June 14, 2001, July 10, 2003, July 14, 2005, November 8, 2007, November 17, 2011, March 14, 2013, August 13, 2015, August 11, 2016, September 13, 2018

This section of the NWCAA Regulation establishes a program of work practice standards and controls for spray coating operations in order to reduce particulate emissions from coating overspray, lessen public exposure to toxic air pollutants, decrease emissions of precursors to the formation of tropospheric ozone, and encourage pollution prevention.

(A) This section applies to spray coating operations at a source and at portable spray coating operations except as provided in NWCAA 508.2(B).

(B) This section does not apply to spray application of:

(1) Architectural or maintenance coatings to stationary structures (e.g., bridges, water towers, buildings, stationary machinery, mobile homes, pavement/curbs, or similar structures).

(2) Maintenance coatings to farm equipment and mining equipment for which it is not practical or feasible to move to a dedicated spray coating facility.

(3) Asphaltic or plastic liners including undercoating, sound deadening coating, and spray-on truck bed liners.

(4) Fiberglass resin and gel coat.

Unless a different meaning is clearly required by context, words and phrases used in this section shall have the following meaning:

AIRLESS or AIR-ASSISTED AIRLESS SPRAY EQUIPMENT - Any paint spray technology that relies solely on the fluid pressure of the paint to create an atomized paint spray pattern and does not apply any atomizing compressed air to the paint before it leaves the paint nozzle. Air-assisted airless spray uses compressed air to shape and distribute the fan of atomized paint, but still uses fluid pressure to create the atomized paint.

COATING - A material or formulation of materials that is applied to or impregnated into a surface in order to beautify, protect, enhance the function, or otherwise cover the surface.

CONTAINER - An individual receptacle that holds a coating or coating component for storage or distribution.

ELECTROSTATIC APPLICATION - Application of coatings where an electrostatic potential is created between the part to be coated and the paint particles.

ENCLOSED SPRAY AREA - An enclosed area used for spray coating including, but not limited to, spray booth, preparation station, or portable enclosure.

HIGH VOLUME, LOW PRESSURE (HVLP) SPRAY EQUIPMENT - Equipment used to apply coatings by means of a spray gun that is designed and operated between 0.1 and 10.0 pounds per square inch gauge air pressure measured at the nozzle.

MOBILE EQUIPMENT - Any device that may be drawn and/or driven on a roadway including, but not limited to, heavy-duty trucks, truck trailers, fleet delivery trucks, buses, mobile cranes, bulldozers, street cleaners, agriculture equipment, motor homes, and other recreational vehicles (including camping trailers and fifth wheels).

OTHER SPRAY COATING - Spray coating of items other than complete motor vehicles and complete mobile equipment.

SPRAY COATING OPERATION - Application of coatings using a hand-held device that creates an atomized mist of coating and deposits the coating on a substrate. For the purposes of this section, a spray coating operation does not include the following materials or activities:

(A) Use of air-brush spray equipment with a maximum cup capacity of 3 fluid ounces.

(B) Use of aerosol spray cans.

(C) Surface coating application using powder coating or non-atomizing application technology, including, but not limited to, paint brushes, rollers, hand wiping, flow coating, dip coating, electrodeposition coating, web coating, coil coating, touch-up markers, or marking pens.

(D) Thermal spray operations (also known as metallizing, flame spray, plasma arc spray, and electric arc spray, among other names) in which solid metallic or non-metallic material is heated to a molten or semi-molten state and propelled to the work piece or substrate by compressed air or other gas, where a bond is produced upon impact.

(A) Except as in NWCAA 508.4(B), it shall be unlawful for any person subject to this section to cause or allow spray coating unless all of the following requirements are met as applicable:

(1) Enclosures. Except as in NWCAA 508.4 (A)(1)(d) & (f), spray coating shall take place inside an enclosed spray area that is capable of capturing all visible paint overspray.

(a) Refinishing Complete Motor Vehicles and Complete Mobile Equipment. An enclosed spray area for refinishing complete motor vehicles and complete mobile equipment shall be one of the following:

(i) A negative pressure enclosure equipped with a full roof and four complete walls or complete side curtains and ventilated at a negative pressure so that air is drawn into any openings in the enclosed spray area, or

(ii) A positive pressure enclosure equipped with seals on all doors and other openings and an automatic pressure balancing system. The pressure balancing system shall be operated at a pressure not more than 0.05 inches water gauge positive pressure as measured by a functioning gauge that displays the pressure to the nearest 0.01 inches water column.

(b) Other Spray Coating. Except as in NWCAA 508.4 (A)(1)(c) through (f), an enclosed spray area for other spray coating shall be equipped with a full roof, at least three complete walls or complete side curtains, and shall be ventilated at a negative pressure so that air is drawn into the enclosed spray area. The enclosed spray area may have openings, if needed, to allow for conveyors and parts to pass through the enclosed spray area during the spray coating process.

(c) Other Spray Coating in an Existing Enclosed Spray Area Located Outdoors. Enclosed spray areas used for other spray coating with complete three-walled/curtain and a full roof located outdoors that are not equipped with a negative pressure ventilation system as of April 20, 2018 are not required to install such system provided the spray coating operation does not create a nuisance.

(d) Other Spray Coating of Large Objects. Conducting other spray coating of large objects outside an enclosed spray area is allowed when it is impractical to totally enclose the large object, provided that reasonable precautions are employed to enclose the object to the extent practicable and to avoid creating a nuisance.

(e) Portable Other Spray Coating Operations. An enclosed spray area for a portable other spray coating operation shall be equipped with a frame-and-fabric shelter consisting of a fabric roof and three fabric sides or similar shelter.

(f) Inside Exhaust. An enclosed spray area is not required if the Department of Labor & Industries and fire protection agency with jurisdiction approve inside exhaust of spray coating operations.

(2) Filtration. Except as in NWCAA 508.4 (A)(1)(c) & (e), all enclosed spray areas shall employ either:

(a) Water-wash curtains with a continuous water curtain to control the overspray or

(b) Properly-seated filter(s) that have a capture efficiency of at least 98 percent as described in NWCAA 508.4 (A)(8)(c). A gauge shall be installed, operated, and maintained that displays the pressure drop across the filter(s). The acceptable pressure drop range shall be clearly marked on the gauge or posted next to the gauge. The enclosed spray area shall be operated such that the pressure drop across the filter(s) is within the acceptable range and the filter(s) are properly seated with no holes or tears.

(3) Spray Application Methods. The spray application methods in NWCAA 508.4 (A)(3)(a) shall be used for spray coating unless the exemption in NWCAA 508.4 (A)(3)(b) applies.

(a) Required Spray Application Methods.

(i) HVLP spray equipment;

(ii) Airless or air-assisted airless spray equipment;

(iii) Electrostatic application; or

(iv) A method that has a transfer efficiency of 65% or higher using ASTM Standard D 5327-92 or a test method approved in writing by the NWCAA.

(b) If the required spray application methods under NWCAA 508.4 (A)(3)(a) cannot be used in a certain situation, the situation is exempt from using a required spray application method provided that the facility maintains appropriate records (e.g., manufacturing specifications) to demonstrate that the required spray application methods cannot be used.

(4) Vertical Unobstructed Exhaust Vent. Except as provided in NWCAA 508.4 (A)(1)(c) & (e), emissions from an enclosed spray area shall be vented to the atmosphere through an unobstructed vertical exhaust vent. If the exhaust vent exits horizontally out of the side of the building, then the exhaust vent shall bend to vent vertically above the eave of the roof. There shall be no flow obstructions that will impede upward vertical flow of the exhaust.

(5) Visible Emissions. Visible emissions from an enclosed spray area exhaust vent shall not exceed 0% opacity for more than an aggregate of 3 minutes in any consecutive 60-minute period as determined by Ecology Method 9A.

(6) Equipment Cleanup. Spray guns shall be cleaned in an enclosed cleaning device or disassembled and cleaned in a container. Each gun cleaning device and container shall be kept closed when not in use. Guns and spray equipment must not atomize solvent into the air during cleanup.

(7) Storage and Disposal. VOC-containing materials shall be kept in closed containers except when materials are actively being added or removed. Rags and paper towels contaminated with VOC-containing materials shall be collected immediately after use and kept in closed containers. Empty containers as defined in WAC 173-303-160 are exempt from this requirement.

(8) Recordkeeping. All records required by this section shall be maintained onsite for at least 3 years from the date of generation and made available to NWCAA personnel upon request. Maintain the following records as applicable:

(a) Data Sheets. Environmental data sheets (EDS) or other data sheets that clearly indicate the contents of the spray coatings and solvents used.

(b) Usages. Records of total coating and solvent purchases or usages for the calendar year.

(c) Filter Efficiency. For those facilities utilizing filter(s) pursuant to NWCAA 508.4 (A)(2)(b), documentation that demonstrates the filter(s) being used have a capture efficiency of at least 98 percent. The procedure used to demonstrate filter efficiency must be consistent with the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) Method 52.1, Method 52.2, or an alternate test method approved by the NWCAA in writing. Published filter efficiency data provided by filter vendors may be used to demonstrate compliance with this requirement.

(d) Filter Condition. For those facilities utilizing filter(s) pursuant to NWCAA 508.4 (A)(2)(b), weekly observations of the filter(s) including: date, time, confirmation that filters are properly seated and in good condition, any corrective actions taken, and initials of person making the record. Weekly observations are not required for weeks that the enclosed spray area was not operated. Instead, the record must reflect the enclosed spray area was not in operation that week.

(e) Pressure Drop. For those facilities utilizing a pressure gauge pursuant to NWCAA 508.4 (A)(1)(a)(ii) and/or NWCAA 508.4 (A)(2)(b), weekly observations of pressure drop readings while operating including: date, time, pressure drop value, corrective action taken if the pressure drop is outside of the normal range (e.g., filter change), and initials of person making the record. Weekly observations are not required for weeks that the enclosed spray area was not operated. Instead, the record must reflect the enclosed spray area was not in operation that week.

(f) Disposal. Disposal records of waste materials, including volumes of waste solvents and coatings transferred to authorized waste haulers.

(B) Compliance Date. Subject sources shall be in compliance with NWCAA 508.4 (A)(1)(a) & (b), (A)(2), and (A)(4) by no later than October 12, 2020.

PASSED: September 13, 2018

580.6 ((Gasoline Stations)) GASOLINE DISPENSING FACILITIES

(A) NWCAA 580.6(B) ((61 - Section 580.62)) shall apply to((:

580.611 All)) all gasoline ((stations)) dispensing facilities (GDF) with ((a total)) an annual 12-consecutive month gasoline throughput equal to or greater than ((seven hundred and fifty-seven thousand liters (200)) 120,000 gallons(() and)).

((580.612 All gasoline stations installed or reconstructed after January 1, 1990 with a nominal total gasoline storage capacity greater than thirty-eight thousand liters (10,000 gallons).

580.62)) (B) It shall be unlawful for any person to cause or allow the transfer of gasoline from any transport tank into any stationary storage tank, except as provided in NWCAA 580.6(C) ((63 of this section)), unless all of the following conditions are met:

((580.621)) (1) Such stationary storage tank is equipped with a permanent submerged or bottom loading fill ((pipe)) line and ((approved)) a vapor recovery system((, and)).

((580.622)) (3) Such transport tank is equipped ((to)) with a vapor balance ((vapors)) system and is maintained in a vapor-tight condition in accordance with ((Section)) NWCAA 580.10 ((and)).

((580.623)) (4) All vapor return lines are connected between the transport tank and the stationary storage tank and the vapor recovery system is functional and operating during loading.

((580.63 Notwithstanding the requirements of 580.61 of this regulation, the following)) (C) The following stationary gasoline storage tanks are exempt from the requirements of 580.6 (A), (B), (D), and (F): ((62:))

((580.631)) (1) All tanks with a capacity less than ((seven thousand five hundred liters ())2,000 gallons(())) installed before January 1, 1990.

((580.632)) (2) All tanks with offset fill lines installed before January 1, 1990.

((580.633)) (3) All tanks with a capacity less than ((one thousand liters (260)) 264 gallons(())).

((580.64 It shall be unlawful for any person to cause or allow the transfer of gasoline from a stationary tank into a motor vehicle fuel tank except as provided in WAC 173-491.))

PASSED: February 14, 1990 AMENDED: April 14, 1993, October 13, 1994, March 13, 1997, May 14, 1998, November 12, 1998, September 13, 2018