Source: http://www.nwcleanair.org/resources/
Timestamp: 2018-03-23 14:53:48
Document Index: 198733531

Matched Legal Cases: ['art 60', 'art 58', 'art 81', 'arts 60', 'art 50', 'arts 60', '§7412', 'art 50', 'art 61', 'art 63', 'art 60', 'art 81', 'art 82', 'art 50', 'art 53', 'art 53', 'art 51', 'art 50', 'art 53', 'art 53', 'art 51', 'art 52', 'art 50', 'art 81', 'art 60', 'art 60', 'art 50', 'art 58', 'art 75', 'art 75', 'art 60', 'art 60', 'art 60', 'art 60', 'art 60', 'art 60', 'art 60', 'art 60', 'art 60', 'art 60', 'art 60', 'art 60', 'art 60', 'art 60']

Submit a public records request File a complaint
Outdoor Burning: Island, Skagit & Whatcom Counties
General outdoor burning rules, permanent burn ban areas and other information.
Jan. 21, 2016 9:16 p.m.
Particulate Pollution and Your Health
Jan. 21, 2016 9:11 p.m.
Permanent Outdoor Burn Bans
Permanent statewide outdoor burn bans for residential yard debris and land-clearing burning.
Jan. 21, 2016 9:08 p.m.
Many people don’t think of the smoke from their wood stove or fireplace as air pollution.
We are committed to supporting and carrying out local, state, and federal policies and efforts to curb the human contribution of greenhouse gases to the environment. As part of those efforts, we are investing $4.7 million in local environmental projects.
Compiled information and tips into this online resource to help you keep your indoor air clean and healthy.
Columbia Valley Air Quality Improvement Project
We are active participants in this community-led effort to improve air quality by reducing wood smoke in Columbia Valley.
Click on the Regulation Sections to view listings of subsections. A link to a downloadable PDF version of the complete NWCAA Regulation is available on the bottom right. Refer to this official, legal version of the regulation in case of a discrepancy with website postings.
The multi‑county agency, consisting of Island, Skagit and Whatcom Counties, having been formed pursuant to the Washington State Clean Air Act RCW 70.94, shall be known and cited as the “Northwest Clean Air Agency”, and hereinafter may be cited as the “NWCAA” or the “Authority.”
Any reference to the Northwest Air Pollution Authority, the Authority or the NWAPA in any document previously issued by the agency, including without limitation orders, permits, judgments, letters and the like shall be deemed reference to the Northwest Clean Air Agency or the NWCAA.
AMENDED: July 14, 2005
The actual rate of emissions of a pollutant from an emission unit, as determined in accordance with a) through c) of this definition.
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) The NWCAA may presume that stationary source-specific allowable emissions for the unit are equivalent to the actual emissions of the emissions unit.
c) For any emissions unit 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.
Dust, fumes, mist, smoke, other particulate matter, vapor gas, odorous substance, or any combination thereof. “Air pollutant” means the same as “air contaminant.”
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 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.
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.
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) The applicable standards as in 40 CFR Part 60, 61 or 63;
b) Any applicable SIP emissions limitation including those with a future compliance date; or
c) The emissions rate specified as a federally enforceable permit condition, including those with a future compliance date.
The surrounding outside air.
An established concentration, exposure time and frequency of occurrence of one or more air contaminant(s) in the ambient air which shall not be exceeded.
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.
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.
In general, initiation of physical on-site construction activities on an emission 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.
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 of Directors of the NWCAA.
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.
A facility and/or place where commercial and/or professional dealings are conducted.
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.
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:
a) Alpine Lakes Wilderness;
b) Glacier Peak Wilderness;
c) Goat Rocks Wilderness;
d) Mount Adams Wilderness;
e) Mount Rainier National Park;
f) North Cascades National Park;
g) Olympic National Park;
h) Pasayten Wilderness; and
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.
As applied to construction, the owner or operator has either:
(1) Begun, or caused to begin, a continuous program of actual on-site construction of the stationary source, to be completed within a reasonable time; or
(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.
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.
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.
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.
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.
Air Pollution Control Officer of the NWCAA, also known as Director.
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).
The hours between official sunrise and official sunset.
Washington State Department of Ecology (WDOE).
A release of air contaminants into the ambient air.
A credit granted pursuant to WAC 173-400-131. This is a voluntary reduction in emissions.
The location (place in horizontal plane and vertical elevation) from which an emission enters the atmosphere.
EMISSION STANDARD and EMISSION LIMITATION
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.
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, Chapter 70.94 RCW, Chapter 70.98 RCW or Regulation of the NWCAA.
Any stationary or portable device or any part thereof capable of causing the emission of any contaminant into the atmosphere or ambient air.
Emissions of an air pollutant in excess of any applicable emission standard.
EXISTING STATIONARY FACILITY
Is defined in WAC 173-400-151.
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.
Any federal land that is classified or reclassified Class I area. The following areas are the Class I areas in Washington state:
g) Olympic National Park; and
h) Pasayten Wilderness
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.
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.
Equipment that produces hot air, hot water, steam, or other heated fluids by external combustion of fuel.
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 originate fugitive dust. Fugitive dust is a type of fugitive emission.
Includes carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.
Any air pollutant listed in or pursuant to Section 112(b) of the Federal Clean Air Act, 42 U.S.C. §7412.
The state Pollution Control Hearings Board or equivalent local hearings board as set forth in RCW 43.21B.
Is 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.
A boiler that utilizes wood, commonly called “hog fuel”, as one source of fuel.
A furnace used primarily for the thermal destruction of waste.
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.
For any stationary source that rate of emissions which reflects the more stringent of:
a) The most stringent emission limitation which is contained in the implementation plan of any state for such class or category of source, unless the owner or operator of the proposed new or modified stationary source demonstrates that such limitations are not achievable; or
b) The most stringent emission limitation which is achieved in practice by such class or category of source.
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.
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) “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.
a) “Major stationary source” as it applies stationary sources subject to requirements for new stationary sources in nonattainment areas is defined in WAC 173-400-112. b) “Major stationary source” as it applies 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:
The mixing of a chemically nonreactive control agent with a malodorous gaseous effluent to change the perceived odor.
The handling, transporting, loading, unloading, storage, and transfer of materials with no significant chemical or physical alteration.
The element mercury, excluding any associated elements and includes mercury in particulates, vapors, aerosols, and compounds.
A mineral mined specifically for its mercury content.
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.
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.
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).
The federal rules in 40 CFR Part 61.
The federal rules in 40 CFR Part 63.
Shall be referred to as NPDES.
Naturally occurring phenomena that reduce visibility as measured in terms of light extinction, visual range, contrast, or coloration.
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.
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) The restart of a stationary source after permanent shutdown
c) Any other project that constitutes a new stationary source under the Federal Clean Air Act.
The federal rules in 40 CFR Part 60.
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.
a) Except as discussed in b) of this definition, a nonroad engine is any internal combustion engine:
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) 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) 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) An internal combustion engine is not a nonroad engine if:
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) The engine is regulated by a New Source Performance Standard (NSPS) promulgated under section 111 of the Federal Clean Air Act; or
3) The engine otherwise included in (a)(3) of this definition remains or will remain at a location for more than twelve 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 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.
A written application to permit construction of a new source, modification of an existing stationary source or replacement or substantial alteration of control technology at an existing stationary source.
That property or a substance which allows its detections by the sense of smell and/or taste.
Any source that incurs two verified odor nuisance complaints within a twelve month time period. Odor nuisance complaints are verified by a NWCAA representative according to the criteria of the NWCAA Regulation Sections 530.1 and 535.3.
The degree to which an object seen through a plume is obscured, stated as a percentage.
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.
Substance listed in Appendices A and B to Subpart A of 40 CFR Part 82.
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 of a contaminant per million parts of gas, by volume, exclusive of water or particulates.
Human and animal remains consisting of carcasses, organs and solid organic wastes, consisting of up to 85% moisture, 5% incombustible solids.
Permanently stopping or terminating all processes at a “stationary source” or “emissions unit.” Except as provided in subsections a) and 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 shutdown is permanent if the owner or operator files a report of shutdown, as provided in NWCAA Regulation Sections 325. Failure to file such a report does not mean that a shutdown was not permanent.
b) Any shutdown lasting two (2) or more years is considered to be permanent.
Ecology or the local air pollution control authority with jurisdiction over the source.
An individual, firm, public or private corporation, association, partnership, political subdivision, municipality, or government agency.
Petroleum condensate, and any finished intermediate product manufactured in a petroleum refinery but does not mean Number 2 through Number 6 fuel oils as specified in A.S.T.M. D396-69, gas turbine fuel oils Numbers 2-GT through 4-GT as specified in A.S.T.M. D2880-71, or diesel fuel oils Number 2-D and 4-D as specified in A.S.T.M. D975-68.
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.
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.
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.
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.
Any facility manufacturing Portland cement by either the wet or dry process.
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.
The program in WAC 173-400-720 through 750.
A physical and/or chemical modification or treatment of a material from its previous state or condition.
Attributable by visual observation or any other technique the state deems appropriate.
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.
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.
Equipment designed to burn waste (refuse) material, scrap or combustion remains.
Registration shall mean 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.
An 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 regulatory order includes an order which applies to that source or sources any applicable provision of chapter 70.94 RCW or the rules adopted thereunder.
Gas borne particulate matter in a sufficient amount to be observable.
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 treatment plants.
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.
All sources of the same type or classification.
Any point in a stationary source designed to emit solids, liquids, or gases into the air, including a pipe or duct.
The height of an emission point measured from the ground-level elevation at the base of the stack.
A temperature of 20 degrees C (68 degrees F) and a pressure of 760 mm (29.92 inches) of mercury.
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 70.94) and 43.21B.
STATE IMPLEMENTATION PLAN (SIP) or WASHINGTON SIP
Washington 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.
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.
All vegetative material of agricultural origin other than seed removed by swathing, combining or cutting.
Any facility producing sulfuric acid by the contact process by burning elemental sulfur, alkylation acid, hydrogen sulfide, or acid sludge.
Any stationary source whose potential to emit has been limited below applicable thresholds by means of a federally enforceable order, rule, or permit condition.
Short ton or 2,000 pounds (a long ton is considered 2,240 pounds).
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.
The equilibrium 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.
Shall be referred to as EPA.
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 H-Galden 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:
1) Cyclic, branched, or linear completely fluorinated alkanes;
2) Cyclic, branched, or linear completely fluorinated ethers with no unsaturations;
3) Cyclic, branched, or linear completely fluorinated tertiary amines with no unsaturations; and
4) Sulfur containing perfluorocarbons with no unsaturations and with sulfur bonds only to carbon and fluorine.
b) For the purpose of determining compliance with emission limits, VOC will be measured by the appropriate methods in 40 CFR Part 60 Appendix A. Where the method also measures compounds with negligible photochemical reactivity, these negligibly-reactive compounds may be excluded as VOC if the amount of the compounds is accurately quantified, and the exclusion is approved by Ecology, the NWCAA, or EPA.
c) As a precondition to excluding these negligibly-reactive compounds as VOC or at any time thereafter, Ecology or the NWCAA may require an owner or operator to provide monitoring or testing methods and results demonstrating, to the satisfaction of Ecology or the NWCAA, or EPA, the amount of negligibly-reactive compounds in the source’s emissions.
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.
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 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.
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
A Notice of Construction and/or PSD permit application must be filed by the owner or operator and an Order of Approval and/or PSD permit issued by the NWCAA, or other designated permitting agency, prior to the establishment of any new source, except for:
a) Those stationary sources exempt under NWCAA 300.4 (categorical) or NWCAA 300.5 (emission thresholds); and
b) Relocation of any temporary source operating in accordance with NWCAA Section 301.
For purposes of this section “establishment” shall mean to “begin actual construction”, as that term is defined in NWCAA Section 200, and “new source” shall include any “modification” to an existing “stationary source”, as those terms are defined in NWCAA Section 200.
Regardless of any other subsection of this section, a Notice of Construction or PSD permit application must be filed and an order of approval or PSD permit issued by the NWCAA prior to establishment of any of the following new sources:
a) Any project that qualifies as construction, reconstruction or modification of an affected facility, within the meaning of 40 CFR Part 60 (New Source Performance Standards), except Subpart AAA (Wood stoves) and such provisions of Subpart IIII pertaining to owners and operators of emergency stationary compression ignition internal combustion engines;
b) Any project that qualifies as a new or modified source within the meaning of 40 CFR 61.02 (National Emission Standards for Hazardous Air Pollutants), except for asbestos demolition and renovation projects subject to 40 CFR 61.145;
c) Any project that qualifies as a new source within the meaning of 40 CFR 63.2 (National Emission Standards for Hazardous Air Pollutants for Source Categories), except Subpart M (Dry Cleaning Facilities) pertaining to area source perchloroethylene dry cleaners, and Subpart ZZZZ pertaining to emergency and limited-use stationary reciprocating internal combustion engines;
d) Any project that qualifies as a new major stationary source, or a major modification;
e) Any modification to a stationary source that requires an increase either in a plant-wide cap or in a unit specific emission limit.
New source review of a modification shall be limited to the emission unit or units proposed to be added to an existing stationary source or modified and the air contaminants whose emissions would increase as a result of the modification; provided, however, that review of a major modification must comply with WAC 173-400-112 and/or 173-400-113, as applicable.
300.4 Emission unit and activity exemptions.
Except as provided in NWCAA 300.1 and 300.2 of this section, establishment of a new emission unit that falls within one of the categories listed below is exempt from new source review. Modification of any emission unit listed below is exempt from new source review, provided that the modified unit continues to fall within one of the listed categories. The installation or modification of a unit exempt under this subsection does not require the filing of a Notice of Construction application.
a) Maintenance/construction:
1) Cleaning and sweeping of streets and paved surfaces;
2) Concrete application, and installation;
3) Dredging wet spoils handling and placement;
4) Paving application and maintenance, excluding asphalt plants;
5) Plant maintenance and upkeep activities (grounds keeping, general repairs, routine house-keeping, routine plant painting, welding, cutting, brazing, soldering, plumbing, retarring roofs, etc.);
6) Plumbing installation, plumbing protective coating application and maintenance activities;
7) Roofing application;
8) Insulation application and maintenance, excluding products for resale;
9) Janitorial services and consumer use of janitorial products.
b) Storage tanks:
Note: It can be difficult to determine requirements for storage tanks therefore it is recommended that the owner or operator contact the NWCAA to determine the exemption status of storage tanks prior to their installation.
1) Lubricating oil storage tanks except those facilities that are wholesale or retail distributors of lubricating oils;
2) Polymer tanks and storage devices and associated pumping and handling equipment, used for solids dewatering and flocculation;
3) Storage tanks, reservoirs, pumping and handling equipment of any size containing soaps, vegetable oil, grease, animal fat, and nonvolatile aqueous salt solutions;
4) Process and white water storage tanks;
5) Operation, loading and unloading of storage tanks and storage vessels, with lids or other appropriate closure and less than 260 gallon capacity (35 cft);
6) Operation, loading and unloading of storage tanks, less than or equal to 1100 gallon capacity, with lids or other appropriate closure, not for use with materials containing toxic air pollutants, as defined in chapter 173-460 WAC, max. VP 550 mm Hg @21° C;
7) Operation, loading and unloading storage of butane, propane, or liquefied petroleum gas with a vessel capacity less than 40,000 gallons;
8) Tanks, vessels and pumping equipment, with lids or other appropriate closure for storage or dispensing of aqueous solutions of inorganic salts, bases and acids.
c) A project with combined aggregate heat input capacity from combustion units, less than or equal to any of the following:
1) Less than or equal to 500,000 Btu/hr coal with less than or equal to 0.5% sulfur or other fuels with less than or equal to 0.5% sulfur;
2) Less than or equal to 500,000 Btu/hr used oil, per the requirements of RCW 70.94.610;
3) Less than or equal to 400,000 Btu/hr wood waste or paper;
4) Less than 1,000,000 Btu/hr kerosene, #1, or #2 fuel oil and with less than or equal to 0.05% sulfur;
5) Less than or equal to 10,000,000 Btu/hr natural gas, propane, or LPG.
Note: the heat input capacity of each combustion unit shall be based on the higher heating value of fuel to be used.
d) Material handling:
1) Continuous digester chip feeders;
2) Grain elevators not licensed as warehouses or dealers by either the Washington State Department of Agriculture or the U.S. Department of Agriculture;
3) Storage and handling of water based lubricants for metal working where organic content of the lubricant is less than or equal to 10%;
4) Equipment used exclusively to pump, load, unload, or store high boiling point organic material in tanks less than one million gallon, material with initial atmospheric boiling point not less than 150°C or vapor pressure not more than 5 mm Hg @21°C, with lids or other appropriate closure.
e) Water treatment:
1) Septic sewer systems, not including active wastewater treatment facilities;
2) NPDES permitted ponds and lagoons used solely for the purpose of settling suspended solids and skimming of oil and grease;
3) De-aeration (oxygen scavenging) of water where toxic air pollutants as defined in chapter 173-460 WAC are not emitted;
4) Process water filtration system and demineralizer vents;
5) Sewer manholes, junction boxes, sumps and lift stations associated with wastewater treatment systems;
6) Demineralizer tanks;
7) Alum tanks;
8) Clean water condensate tanks.
f) Environmental chambers and laboratory equipment:
1) Environmental chambers and humidity chambers not using toxic air pollutant gases, as regulated under chapter 173-460 WAC;
2) Gas cabinets using only gases that are not toxic air pollutants regulated under chapter 173-460 WAC;
3) Installation or modification of a single laboratory fume hood;
4) Laboratory calibration and maintenance equipment.
g) Monitoring/quality assurance/testing:
1) Equipment and instrumentation used for quality control/assurance or inspection purpose;
2) Hydraulic and hydrostatic testing equipment;
3) Sample gathering, preparation and management;
4) Vents from continuous emission monitors and other analyzers.
h) Dry Cleaning: Unvented, dry-to-dry, dry-cleaning equipment that is equipped with refrigerated condensers and carbon absorption to recover the cleaning solvent.
i) Emergency Stationary Compression Ignition (CI) Internal Combustion Engines (ICE): Any stationary internal combustion engine whose operation is limited to emergency situations and required testing and maintenance and operating less than 500 hours a year. Examples include stationary ICE used to produce power for critical networks or equipment (including power supplied to portions of a facility) when electric power from the local utility (or the normal power source, if the facility runs on its own power production) is interrupted, or stationary ICE used to pump water in the case of fire or flood, etc. Stationary CI ICE used to supply power to an electric grid or that supply power as part of a financial arrangement with another entity are not considered to be emergency engines.
j) Miscellaneous:
1) Single-family residences and duplexes;
2) Plastic pipe welding;
3) Primary agricultural production activities including soil preparation, planting, fertilizing, weed and pest control, and harvesting;
4) Comfort air conditioning;
5) Flares used to indicate danger to the public;
6) Natural and forced air vents and stacks for bathroom/toilet activities;
7) Personal care activities;
8) Recreational fireplaces including the use of barbecues, campfires, and ceremonial fires;
9) Tobacco smoking rooms and areas;
10) Noncommercial smokehouses;
11) Blacksmith forges for single forges;
12) Vehicle maintenance activities, not including vehicle surface coating;
13) Vehicle or equipment washing (see c) of this subsection for threshold for boilers);
14) Wax application;
15) Oxygen, nitrogen, or rare gas extraction and liquefaction equipment not including internal and external combustion equipment;
16) Ozone generators and ozonation equipment;
17) Solar simulators;
18) Ultraviolet curing processes, to the extent that toxic air pollutant gases as defined in chapter 173-460 WAC are not emitted;
19) Electrical circuit breakers, transformers, or switching equipment installation or operation;
20) Pulse capacitors;
21) Pneumatically operated equipment, including tools and hand held applicator equipment for hot melt adhesives;
22) Fire suppression equipment;
23) Recovery boiler blow-down tank;
24) Screw press vents;
25) Drop hammers or hydraulic presses for forging or metal working;
26) Production of foundry sand molds, unheated and using binders less than 0.25% free phenol by sand weight;
27) Kraft lime mud storage tanks and process vessels;
28) Lime grits washers, filters and handling;
29) Lime mud filtrate tanks;
30) Lime mud water;
31) Stock cleaning and pressurized pulp washing down process of the brown stock washer;
32) Natural gas pressure regulator vents, excluding venting at oil and gas production facilities and transportation marketing facilities;
33) Nontoxic air pollutant, as defined in chapter 173-460 WAC, solvent cleaners less than 10 square feet air-vapor interface with solvent vapor pressure not more than 30 mm Hg @21°C;
34) Surface coating, aqueous solution or suspension containing less than or equal to 1% (by weight) VOCs, and/or toxic air pollutants as defined in chapter 173-460 WAC;
35) Cleaning and stripping activities and equipment using solutions having less than or equal to 1% VOCs (by weight); on metallic substances, acid solutions are not exempt;
36) Dip coating operations, using materials less than 1% VOCs (by weight) and/or toxic air pollutants as defined in chapter 173-460 WAC.
37) Gasoline dispensing facilities subject to chapter 173-491 WAC are exempt from toxic air pollutant analysis pursuant to chapter 173-460 WAC.
300.5 Exemptions Based on Emissions Thresholds
a) Except as provided in NWCAA 300.1 and 300.2 of this section and in this subsection:
1) A new emissions unit that has an uncontrolled potential to emit below each of the threshold levels listed in the table contained in (d) of this subsection is exempt from new source review provided that the conditions of (b) of this subsection are met.
2) A modification to an existing emissions unit that increases the unit’s actual emissions by less than each of the threshold levels listed in the table contained in (d) of this subsection is exempt from new source review provided that the conditions of (b) of this subsection are met.
b) The owner or operator seeking to exempt a project from new source review under this section shall notify, and upon request, file a brief project summary with the NWCAA thirty (30) days prior to beginning actual construction on the project. If the NWCAA determines that the project will have more than a de Minimus impact on air quality as defined in 300.5 d), the NWCAA shall require the filing of a Notice of Construction or PSD permit application. The NWCAA may require the owner or operator to demonstrate that the emissions increase from the new emissions unit is smaller than all of the thresholds listed below. In accordance with NWCAA 324.2, a filing and NOC applicability determination fee shall apply when the NWCAA issues a written determination that a project is exempt for new source review.
c) The owner or operator may begin actual construction on the project thirty-one (31) days after the NWCAA receives the project summary, unless the NWCAA notifies the owner or operator within thirty (30) days that the proposed new source requires a Notice of Construction or PSD permit application.
d) Exemption threshold table:
POLLUTANT THRESHOLD LEVEL (ton per year)
1) Total Suspended Particulates: 1.25
2) PM10: 0.75
3) PM2.5: 0.5
4) Sulfur Oxides: 2.0
5) Nitrogen Oxides: 2.0
6) Volatile Organic Compounds: total 2.0
7) Carbon Monoxide: 5.0
8) Lead: 0.005
9) Ozone Depleting Substances: total 1.0 (in effect on July 1, 2000)
10) Toxic Air Pollutants: as specified in chapter 173-460 WAC.
(e) Greenhouse gas emissions are exempt from new source review under this section except to the extent required under WAC 173-400-720, prevention of significant deterioration. The owner or operator of a source or emissions unit may request that NWCAA impose emission limits and/or operation limitations for greenhouse gas in any new source review Order of Approval.
The Control Officer may require that a new source, that would otherwise be exempt under this section, submit a Notice of Construction application and be granted approval as specified in this section. This discretionary determination shall be based on the nature of air pollution emissions from the stationary source and its potential effect on health, economic and social factors, or physical effects on property. Upon request, the proponent shall submit to the Control Officer, appropriate information as necessary to make this determination.
300.7 Notice of Construction – Submittal Requirements
Each Notice of Construction application shall:
a) be submitted on forms provided by the NWCAA;
b) be accompanied by the appropriate fee specified in NWCAA 324.2;
c) be accompanied by a completed State Environmental Policy Act (SEPA) checklist consistent with NWCAA 155; and
d) include a “top down” BACT analysis, as defined at the time of submittal, except where the Federal Clean Air Act requires LAER; and
e) An applicant filing a Notice of Construction application for a project described in WAC 173-400-117(2), Special protection requirements for Class I areas, shall send a copy of the application to the responsible federal land manager.
300.8 Notice of Construction – Completeness Determination.
a) Within thirty (30) days after receiving a Notice of Construction or PSD permit application, the NWCAA shall either notify the applicant in writing that the application is complete or notify the applicant in writing of additional information necessary to complete the application.
b) For a project subject to the Special protection requirements for federal Class I areas in WAC 173-400-117(2), a completeness determination includes a determination that the application includes all information required for review of that project under WAC 173-400-117(3).
c) For a project subject to PSD review under WAC 173-400-720 through -750, a completeness determination includes a determination that the application provides all information required to conduct the PSD review.
300.9 Notice of Construction – Final Determination
a) Within sixty (60) days of receipt of a complete Notice of Construction or PSD permit application, the NWCAA shall either issue a final decision on the application or initiate public notice under NWCAA Section 305 on a proposed decision, followed as promptly as possible by a final decision.
b) A person seeking approval to construct or modify a stationary source that requires an operating permit may elect to integrate review of the operating permit application or amendment required under RCW 70.94.161 and the Notice of Construction or PSD permit application required by this section. A Notice of Construction or PSD permit application designated for integrated review shall be processed in accordance with operating permit program procedures and deadlines in chapter 173-401 WAC. A PSD permit application under WAC 173-400-720 through -750, a notice of nonattainment area construction application for a major modification in a nonattainment area, or a Notice of Construction application for a major stationary source in a nonattainment area must also comply with WAC 173-400-171.
c) Every final determination on a Notice of Construction or PSD permit application shall be reviewed and signed prior to issuance by a professional engineer or staff under the direct supervision of a professional engineer in the employ of the NWCAA.
d) If the new source is a major stationary source or the change is a major modification, the application shall be processed in accordance with the applicable sections of WAC 173-400-112, 113, 117 and 171. The permitting agency shall:
1) Submit any control technology determination included in a final Order of Approval or PSD permit to the RACT/BACT/LAER clearinghouse maintained by EPA; and
2) Send a copy of the final Order of Approval or PSD permit to EPA.
300.10 Order of Approval – Appeals
An Order of Approval or PSD permit, any conditions contained in an Order of Approval or PSD permit, or the denial of a Notice of Construction or PSD permit application may be appealed to the Pollution Control Hearings Board as provided in chapter 43.21B RCW. The NWCAA shall promptly mail copies of each order approving or denying a Notice of Construction or PSD permit application to the applicant and to any other party who submitted timely comments on the application, along with a notice advising parties of their rights of appeal to the Pollution Control Hearings Board.
300.11 Order of Approval – Time Limitations.
An Order of Approval or PSD permit becomes invalid if construction is not commenced within eighteen months after receipt of the approval, if construction is discontinued for a period of eighteen months or more, or if construction is not completed within a reasonable time. The NWCAA may extend the eighteen-month period upon a satisfactory showing that an extension is justified. An extension for a project operating under a PSD permit must also comply with public notice requirements in WAC 173-400-171. This provision does not apply to the time period between construction of the approved phases of a phased construction project. Each phase must commence construction within eighteen months of the projected and approved commencement date.
300.12 Order of Approval – Change of Conditions.
a) The owner or operator may request, at any time, a change in conditions of an Order of Approval or PSD permit and the NWCAA may approve the request provided the NWCAA finds that:
1) The change in conditions will not cause the stationary source to exceed an emissions standard;
2) No ambient air quality standard or PSD increment will be exceeded as a result of the change;
3) The change will not adversely impact the ability of Ecology or the NWCAA to determine compliance with an emissions standard;
4) The revised order will continue to require BACT, as defined at the time of the original approval, for each new source approved by the order except where the Federal Clean Air Act requires LAER; and
5) The revised order meets the requirements of this section and WAC 173- 400-110, 173-400-112, 173-400-113 and 173-400-720 through -750, as applicable.
b) Actions taken under this subsection are subject to the public involvement provisions of NWCAA Section 305 or WAC 173-400-171 as applicable.
c) This rule does not prescribe the exact form such requests must take. However, if the request is filed as a Notice of Construction application, that application must be acted upon using the timelines found in NWCAA 300.8 and NWCAA 300.9 and the fee schedule found in NWCAA 324.
300.13 Replacement or Substantial Alteration of Emission Control Technology at an Existing Stationary Source.
d) Construction shall not “commence,” as defined in NWCAA Section 200, on a project subject to review under this section until the NWCAA issues a final Order of Approval. However, any Notice of Construction application filed under this section shall be deemed to be approved without conditions if the NWCAA takes no action within thirty (30) days of receipt of a complete Notice of Construction application.
e) Approval to replace or substantially alter emission control technology shall become invalid if construction is not commenced within eighteen months after receipt of such approval, if construction is discontinued for a period of eighteen months or more, or if construction is not completed within a reasonable time. The NWCAA may extend the eighteen-month period upon a satisfactory showing that an extension is justified. This provision does not apply to the time period between construction of the approved phases of a phased construction project; each phase must commence construction within eighteen months of the projected and approved commencement date.
300.15 Order of Approval – Requirements to Comply
It shall be unlawful for an owner or operator of a source or emission unit to not abide by the operating and reporting conditions in the Order of Approval.
AMENDED: July 8, 1970, February 14, 1973, July 11, 1973, August 9, 1978, October 12, 1989, February 14, 1990, April 14, 1993, November 12, 1998, November 12, 1999, March 9, 2000, June 14, 2001, July 10, 2003, July 14, 2005, November 8, 2007, June 10, 2010, June 9, 2011, November 17, 2011, August 13, 2015
In the interest of the people within the jurisdiction of the NWCAA, it is the objective of the NWCAA to obtain and maintain the cleanest air possible, consistent with the highest and best practicable control technology.
In the areas where existing concentrations of air contaminants are lower than concentrations allowed by the standards enumerated below, degradation of the atmosphere should be minimized. The highest and best practicable control technology should be applied to all sources unless it is specifically determined that lesser technology is justified. Ambient air standards are set at levels which, according to latest knowledge, will not cause damage to health, plants or animals or degrade materials.
Section 502 - 540:
Regulated Activities and Prohibitions
Section 550 - 590:
SECTION 550 – PREVENTING PARTICULATE MATTER FROM BECOMING AIRBORNE
The owner or operator of a source or activity that generates fugitive dust, including, but not limited to, material handling, building construction or demolition, abrasive blasting, roadways and lots, shall employ reasonable precautions to prevent fugitive dust from becoming airborne and must maintain and operate the source or activity to minimize emissions.
It shall be unlawful for any person to cause or allow the emission of particulate matter which becomes deposited upon the property of others 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 interferes with enjoyment of life and property.
For this section, reasonable precautions may include, but are not limited to:
AMENDED: February 14, 1973, August 9, 1978, October 14, 1987, April 14, 1993, November 12, 1999, July 14, 2005, September 11, 2014
Objectives and Planning Criteria
Ambient air quality objectives are not to be confused with air quality standards, but are goals to be strived for. They are intended to describe a level of air quality which will:
600.11 Not degrade human health and safety.
600.12 Avoid injury to plant and animal life and property.
600.13 Be consistent with the economic and social well being of the area.
600.2 Objectives are designed to serve as a guide:
600.21 For the development of ambient and emission standards.
600.22 In the preparation of long and short range objectives for ambient and emission standards, and
600.23 For the election of air pollution control measures for existing and planned facilities which could create air pollution.
The adopted objectives are not intended to represent the ultimate in air quality achievement. As evidence accumulates on the effects of contaminants and as new and/or revised sampling and analytical procedures become available, present objectives and procedures may be revised and/or additional objectives and procedures may be established.
Appendix A: Ambient Monitoring, Emission Testing, And Continuous Emission and Opacity Monitoring
(The effective date of Appendix A is July 14, 2006.)
I. AMBIENT MONITORING
(A) METHODS AND EQUIPMENT
(1) Sulfur dioxide stations shall employ EPA’s automated equivalent method. All other monitors shall be operated and maintained as described in the appropriate Sections of 40 CFR Part 50 and 40 CFR Part 58.
(2) Sample collection lines and instrument manifolds shall be constructed of Teflon or glass. Residence time in the sampling line shall not exceed 20 seconds.
(3) Analyzers shall be designated EPA reference or EPA designated equivalent method. Sulfur dioxide monitors shall be operated in the 0 to 1 ppm range.
(4) A Quality Assurance (QA) manual and a station log book shall be kept for all stations. The station log book shall be used to record all ongoing activities associated with station operation. Upon approval by the NWCAA, electronic log books may be utilized.
(5) Strip charts shall be used for all monitors unless the data acquisition system is capable of generating trend graphs from one–minute measurement averages. Paperless strip charts are acceptable if configured to store one-minute measurement averages. For sulfur dioxide stations using data acquisition based storage, one-minute data shall be reviewed for possible 5-minute violations.
(6) All stations shall be operated on Pacific Standard Time (PST).
(1) Instruments shall be calibrated with National Institute of Standards and Technology (NIST) reference materials or NIST-traceable secondary standards, using standard reference methods and EPA-approved procedures.
(2) Each instrument shall be calibrated at least once every six (6) months and whenever span or precision checks deviate by more than 10% of the true value or the absolute value of the zero response is equal to or greater than five times the resolution of the monitor (for sulfur dioxide monitors, 0.005 ppm)
(3) Data precision shall be determined using single point precision checks performed at least once every two (2) weeks. Precision tests are performed by challenging the analyzer with a test gas of known concentration (between 0.080 and 0.100 ppm for sulfur dioxide). Precision data must be within ±10% of the true value.
(4) Data accuracy shall be assessed by performance audits and weekly span checks. All continuous analyzers are to be zeroed and spanned at least weekly at 70% to 90% of scale using a test gas of known concentration. Make appropriate calibration adjustments if the analyzer response deviates by more than 10% from the true value.
(5) All standard materials used for calibrations, precision and span checks shall be recertified every 6 months, or new standard materials shall be used.
(6) If precision and span checks are conducted at the same time, the precision test shall be conducted prior to any zero and span adjustments.
(7) Gaseous monitors shall not be zeroed or span checked manually when pollutant levels are detected at more than 50% of any applicable 5-minute or hourly short-term standard. Monitors shall not be zeroed or spanned more than twice a day.
(8) Written calibration and precision/span check procedures shall be included in the QA manual required under paragraph I(A)(4).
(1) Preventive maintenance for the ambient analyzers and calibration systems shall be performed in accordance with procedures described in the QA manual required under paragraph I(A)(4) and the methods referenced in I(A)(1).
(2) All scheduled and unscheduled maintenance shall be recorded in the station log book.
(3) Written preventive maintenance procedures shall be included in the QA manual required under paragraph I(A)(4).
(1) A station audit shall be conducted by the NWCAA at least once per year. The NWCAA audit does not fulfill any requirements specified under I(B).
(2) The NWCAA audit shall include an assessment of precision/accuracy of the instrument, a review of QA manual and other QA materials, siting parameters and operating procedures, as well as an inspection of the station log for maintenance and calibration documentation.
(3) When a monitor does not fall within defined limits or tolerances, ambient data shall be invalidated back to the most recent point in time at which measurements are known to be accurate or an event which can be identified as the probable cause of the failure.
(E) DATA RECORDING, VALIDATION AND REPORTING
(1) For each station visit, the following information shall be recorded in the station log book:
(a) Date, time, and personnel identification
(b) Room temperature minimum/maximum and current value
(c) Reason for visit
(d) Actions taken
(e) Time period for which the analyzer was offline
(2) All quality assurance procedures shall be described in detail in the QA manual, including but not limited to:
(a) General description of the monitor installation, including model and serial numbers
(b) General operating procedures
(c) Calibration, precision, span check procedures, and associated control limits
(d) Preventive maintenance procedures
(e) Corrective maintenance procedures
(f) Data recording, processing, and validation procedures
(g) Spare parts list
(h) Evidence of operator training
(i) Vendor contact information
(j) List of current station operators
(3) For reporting purposes, ambient air quality data are to be averaged for each clock hour. Strip chart recorder time shall not differ from the time of the data acquisition system by more than 10 minutes.
(4) Data shall be collected on strip chart recorders (except as noted under I(A)(5)), as well as a digital data acquisition system. Strip charts shall be reviewed, and checked against the appropriate data logger values. The strip charts shall be initialed by the station operator during each station visit.
(5) All questionable data such as significant sudden spikes, excessively noisy signals, or other unusual data patterns should be investigated, and, if appropriate, voided. For an hour/day to be considered valid, a minimum of 45 minutes/18 hours of valid data shall be collected, respectively. Data collected during span/precision checks, calibrations or maintenance shall be considered invalid. Data collected during periods of exceedance of the acceptable temperature range are invalid and shall be flagged; validation shall be subject to review by the Control Officer.
(6) Monthly diskettes containing the validated pollutant concentration data in SAROAD format shall be submitted to the NWCAA no later than thirty (30) days after the end of the reporting month. Other file formats, as well as data submittal via e-mail may be approved by the Control Officer.
(7) Whenever the ambient SO2 concentration is measured to be equal to or greater than 0.800 ppm for five (5) or more consecutive minutes, a supplemental written report shall be submitted with the monthly monitoring data, indicating the time, actual concentrations, and possible reason(s) (if known) for each period of excess SO2.
(8) Whenever monitoring equipment required by an Order of Approval to Construct, an air operating permit, or enforcement action, for any reason, fails to provide data for a continuous period of twenty-four (24) hours or longer, or if more than two (2) consecutive days with less than eighteen (18) hours of valid data occur, the NWCAA shall be notified. Notification shall be made within seventy-two (72) hours after the first invalid day occurs.
(9) For each monitoring station, the operator shall provide a supplemental report when monthly data capture falls below 90%. This report shall list the reasons for the low data capture.
(10) All data strip charts and site logs shall be kept for at least five years.
NON – CRITERIA POLLUTANTS
(F) METHODS AND EQUIPMENT
(1) Ambient measurements of pollutants not listed as criteria pollutants in the FCAA may be required by the NWCAA. Guidelines for methods, equipment, associated operations, data recording and reporting shall be approved by the NWCAA on a case by case basis.
(G) METHODS AND EQUIPMENT
(1) The meteorological system shall accurately measure wind speed and wind direction and be approved by the Control Officer. The data accuracy shall fall within the following control limits:
(a) wind speed: ±2 mph
(b) wind direction: ±10 degrees
(c) temperature: ±2 °F
(2) Instruments measuring wind direction shall be oriented to true north.
(3) A log book shall be kept for each meteorological system. Dates and description of initial installation, results of calibrations, preventive maintenance and operational checks, and operator initials shall be recorded in the log book. Upon approval by the NWCAA electronic log books may be utilized.
(4) All station installations shall meet EPA siting criteria (Quality Assurance Handbook for Air Pollution Measurement Systems – Volume IV – Meteorological Measurements) (EPA-600/4-82-060, revised 1989).
(H) AUDITING
(1) A performance audit shall be conducted once every two years (22-24 months from the last performance audit) by an independent auditor. A performance audit shall also be performed if the siting parameters or location changes or new equipment is installed. The audit shall be conducted within 90 days, if new equipment is installed or a change in siting parameters occurs, and shall evaluate the following:
(a) As-found orientation
(b) Wind speed threshold check
(c) Wind direction threshold check
(d) Wind speed accuracy check
(e) Wind direction accuracy check
(2) A system audit may be conducted periodically by the NWCAA. This audit shall include an examination of all site logs, instrument siting and installation, daily operating procedures, preventive maintenance, and calibration data and methods.
(I) DATA RECORDING AND REPORTING
(1) All meteorological data shall be reported as hourly averages. When wind speed is less than two (2) miles per hour and there is no predominant wind direction, the direction may be reported as 000 degrees. If there is a predominant wind direction, an average shall be reported.
(2) Meteorological data calibration reports and results from independent performance audits shall be submitted to the NWCAA no later than thirty (30) days after the end of the month in which they were conducted.
(3) Monthly diskettes containing the validated meteorological data in SAROAD format shall be submitted no later than thirty (30) days after the end of the reporting month. Other file formats, as well as data submittal via e-mail may be approved by the Control Officer.
II. EMISSION TESTING
(1) Unless specified in an applicable subpart, the test length for an emission test shall, whenever possible, equal or exceed the time period of the standard with which the test is to demonstrate compliance.
(2) Emission tests shall, whenever possible, employ methods with established detection limits (DL) lower than the applicable standard. Minor modifications to the test methods, designed to increase method precision, may be approved by the Control Officer, provided that such modifications do not represent a major modification to the test method, or a less stringent interpretation of applicable regulations.
(3) Where measured concentrations or emissions of pollutants are below the method detection limit, the value of the detection limit shall be used to calculate average emissions, and the results shall be reported as “less than DL” if all runs were below the DL, and “less than” the average of the runs if one or more runs were above the DL. The detection limit shall be in units of the standard and actual DLs, whether standard or calculated, must be reported. Reagent blanks below the DL shall use a value of zero. In Method 23, DLs shall be treated as written in the method. DLs for similar pollutants cannot be added or averaged.
(4) Gas dilution systems used for instrument calibration shall comply with EPA Method 205.
(B) TEST PLANS AND TEST DATES
(1) A source test plan shall be submitted for approval by the NWCAA for all compliance source tests at least thirty (30) days prior to the scheduled date, unless otherwise specified in an applicable subpart. A summary of the test shall accompany the test plan and be submitted on a template provided by the NWCAA. CGA and RATAs are not considered source tests.
(2) Once a test plan has been approved by the NWCAA, any changes in test dates or methodology shall require NWCAA approval, provided such changes do not conflict with other requirements or extend the test date beyond the date specified in a subpart.
(C) OPERATING CONDITIONS
(1) Unless otherwise specified in an applicable subpart or a permit condition, the facility shall operate at normal conditions. Normal operation shall exclude periods of startup, shutdown, or unit malfunction. Soot blowing is considered part of normal operations.
(2) If maximum capacity does not represent the condition which results in the highest emissions, the facility may be required to repeat the test at different load conditions and/or during use of a different fuel.
(3) All operating parameters, listed and approved under II(B) shall be recorded during the test.
(D) TEST STOPPAGES
(1) Once initiated, a compliance test shall be completed, except as noted in II(D)(2). Failure to complete a test shall be a violation of the requirement to test, and, in cases where the initial data indicate non-compliance with the applicable emission standard, the results may be considered a violation of that standard.
(2) A stack test may be stopped due to severe weather, tester equipment failure, unit failure, safety considerations, or other conditions beyond the control of the facility. The NWCAA observer may void a test or individual run on-site if procedures are determined to be employed incorrectly.
(3) Data generated during aborted tests shall be appended to the report of the valid repeat test. Documentation of the reasons for test stoppage shall be included in the test report. Test stoppages under II(D)(2) do not provide an extension of any test deadline.
(E) POSTPONEMENT
(1) Compliance tests shall be completed prior to the required test deadline as listed in the applicable subpart or a permit condition. Failure to conduct a timely compliance test constitutes a violation of the requirement to test.
(F) TEST REPORT
(1) A test report shall be submitted to the NWCAA no later than 60 (sixty) days after the completion of the test, unless otherwise specified by an applicable subpart.
(2) A summary of the test shall accompany the test report and submitted on a template provided by the NWCAA.
(3) All field data, operational data listed in the test plan, quality assurance information, sample calculations, and other supporting information, such as certificates for gas standards, or meter box and calibrations, shall be included in the test report.
(G) REQUIREMENTS FOR RE-TESTING
(1) A facility shall be required to repeat a test, and may be required to conduct source tests more frequently, if one or more of the following conditions are encountered:
(a) The facility exceeded the applicable standard.
(b) If the test was stopped for any reason.
(c) If operating conditions or testing methodology deviated significantly from those described in the original test plan.
(d) If the test was voided by the NWCAA.
III. CONTINUOUS EMISSION AND OPACITY MONITORING
(1) Unless subject to acid rain regulations (40 CFR Part 75), all continuous emission monitoring (CEM) systems shall be capable of meeting the appropriate EPA performance specification using procedures outlined in 40 CFR 60, Appendix B. CEMs subject to acid rain regulations shall be capable of meeting the specifications outlined in the appropriate Section of 40 CFR Part 75.
(2) All CEMs shall be operated in accordance with the appropriate Section of 40 CFR 60, Appendix F.
(3) A Quality Assurance (QA) and a station log book shall be kept for all stations. The station log book shall be used to record all ongoing activities associated with station operation.
(4) The operator shall assess the operation of each CEM daily. The date, time, operator and location shall be written on the strip chart and log book each time the monitor is checked manually. Recorder charts shall be documented with explanations for unusual traces, maintenance, invalid data, calibrations, etc. On a case-by-case basis the NWCAA may approve the use of electronic log books.
(5) For gaseous CEMs, “continuous” shall be defined as a minimum of one measurement every 15 minutes, i.e., four equally spaced data points comprising an hourly average.
(6) For continuous opacity monitors (COMs), “continuous” shall be defined as a minimum of one measurement every 15 seconds.
(7) Continuous emission rate monitors shall comply with 40 CFR Part 60, Appendix B, Specification 6. The flow portion of the system shall be checked periodically against EPA Method 2.
(1) CEM calibration drift (precision) checks shall be conducted daily in accordance with 40 CFR Part 60, Appendix F and the written operational procedures.
(2) The instrument shall be adjusted in accordance with the requirements of the applicable performance specification of 40 CFR Part 60, Appendix B.
(3) Temperature monitors shall be accurate to within 5 degrees F, unless otherwise specified in a subpart.
(4) A section on calibration check and adjustment procedures shall be included in the CEM QA document.
(5) Continuous opacity monitors shall be calibrated as outlined in 40 CFR Part 60, Appendix B, Specification 1 and the manufacturer’s procedures.
(1) Continuous opacity monitors shall be maintained according to “Recommended Quality Assurance Procedures for Opacity Continuous Emission Monitoring Systems” (EPA 340/1-86-10) and the manufacturer’s procedures.
(2) All gaseous CEMs shall be maintained using QA criteria of 40 CFR Part 60, Appendix F and the manufacturer’s procedures.
(3) Temperature monitors shall be maintained according to manufacturer’s recommendations.
(4) A section on preventive maintenance procedures shall be included in the CEM QA document.
(D) AUDITING – Continuous Opacity Monitors (COMs)
(1) Accuracy checks shall be performed according to EPA “Recommended Quality Assurance Procedures for Opacity Continuous Emission Monitoring Systems” (EPA 340/1-86-10). Testing in addition to otherwise applicable requirements shall be implemented as follows:
(a) On-stack performance audit: A calibration error check shall be conducted if accuracy or linearity of data does not comply with applicable specifications.
(b) An off-stack (clear path) zero alignment shall be conducted if the percentage difference between the simulated zero check response and the true value is greater than suggested manufacturer’s limits or standards.
(2) System audits may be conducted by the NWCAA. The audit may include an on-site inspection of the opacity monitor and a review of operating procedures, site log, documentation of data collection activity, and location criteria.
(3) Multi-performance audits may be conducted by the NWCAA to assess data accuracy and to determine if the opacity monitor meets the applicable performance specification.
(E) AUDITING – GASEOUS MONITORS
(1) Data accuracy assessments shall be performed at least once every calendar quarter and at periodic intervals determined by monitor performance and data accuracy.
Data accuracy assessments shall be conducted in accordance with procedures outlined in 40 CFR Part 60, Appendix F. The following testing methods shall be used as described in Part 60:
(a) Relative Accuracy Test Audit (RATA)
(b) Relative Accuracy Audit (RAA)
(c) Cylinder Gas Audit (CGA)
The Relative Accuracy Test Audit shall be conducted at least once every four (4) calendar quarters as described in the applicable performance specification outlined in 40 CFR Part 60, Appendix B.
(2) All RATAs shall assess accuracy in units of the applicable standard with which compliance is being determined and shall test the entire system. Accuracy calculations shall be based on the output of the CEM’s data acquisition system.
(3) Data accuracy assessments which require the CEM to be off-line shall not be performed during periods in which the CEM is measuring greater than 75% of the applicable standard without prior approval by the NWCAA.
(4) System audits may be conducted by the NWCAA. The audit may include an on-site inspection of the CEM and a review of operating procedures, site log, documentation of data collection activity, and location criteria.
(5) Multi-performance audits may be conducted by the NWCAA to assess data accuracy and to determine if the CEM meets the applicable performance specification.
(F) DATA RECORDING, VALIDATION AND REPORTING
(1) Strip charts shall be used for all monitors unless the data acquisition system is capable of generating trend graphs from one-minute averages. Paperless strip charts are acceptable if configured to store one-minute averages (15-second or better averages for opacity monitors). Strip chart times shall not deviate from the time of the data acquisition system by more than 10 minutes.
(2) All gaseous CEMs shall be able to digitally capture and store data in at least 5-minute averages, unless the data acquisition system is used to replace strip charts in which case one-minute storage shall be required. Opacity monitoring systems shall be capable of storing 15-second averages.
(3) All data shall be retained for a period of at least five (5) years and be available to the NWCAA upon request.
(4) Each CEM shall have a log book or file on site. Any work performed on any portion of CEM system shall be recorded, including the following information:
(b) Reason for station visit
(c) Action(s) taken
(d) Time period for which the analyzer was offline
(5) Each CEM shall have a QA manual on site which address all quality control requirements outlined in 40 CFR Part 60, Appendix F, Section 3. All QA procedures should be described in sufficient detail to assure that all operators carry out procedures in the same manner. At a minimum, the following shall be included:
(a) Instrument installation description including model and serial numbers
(b) Operating procedures including daily check procedures and pertinent instrument settings
(c) Procedures for calibration and calibration drift assessment
(d) Quality control limits and instrument adjustments procedures
(e) Preventive maintenance procedures
(f) Data recording, validation, backup, and reporting procedures
(g) Accuracy assessment procedures for CGAs and RATAs
(h) Corrective action plan for malfunctioning CEM, including reporting requirements
(i) List of current station operators
(j) Vendor names and addresses
(k) Spare parts inventory
(l) Evidence of operator training
(6) Data from strip chart recorders or recording devices approved under III(F)(1), shall be reviewed and, if applicable, compared to corresponding data logger values, and then signed by the station operator. At a minimum, the following information shall be checked and appropriately labeled:
(a) Zero and span/precision checks
(b) Preventive maintenance operations
(c) QA activities
(d) Unusual chart traces
(e) Time, date, and personnel identification
(7) Pre-adjustment values for automatically adjusting monitors shall be documented (40 CFR Part 60, Appendix F, Section 4.2).
(8) All unusual or questionable data shall be investigated and, if appropriate, be voided. For gaseous monitors, a minimum of 45 minutes of valid data in a 1-hour period is required for the hour to be considered valid. A minimum of 18 hours of valid data in a 24 hour period is required for the day to be considered valid.
(9) CEM data shall be considered invalid, and flagged for reporting purposes, if:
(a) The monitor is not operated and maintained in accordance with the applicable performance specifications of 40 CFR Part 60, Appendix B.
(b) Quality assurance procedures are not in accordance with 40 CFR Part 60, Appendix F.
(c) The CEM or is not operative or off line.
(d) The monitor is being zeroed or spanned.
(e) The CEM is “out-of-control” as defined in 40 CFR Part 60, Appendix F.
(10) Data generated during QA audits (e.g., CGAs), calibration, and calibration drift checks shall be excluded for purposes of compliance determination.
(11) For reporting purposes, averaging periods for CEMs are one (1) clock hour for gaseous monitors, six (6) minutes for opacity monitors, and fifteen (15) minutes for temperature monitors, unless otherwise specified by applicable limits.
(12) Missing data substitution: Missing or invalid data shall be substituted using the following procedures:
(a) Missing data from CEMs that are turned off during periods of excess emissions shall be reported as exceedances of all applicable emission standards.
(b) Parametric, engineering, or source test data may be utilized for data substitution during periods of normal operation as demonstrated by operating data.
(c) Data substitution is not required if invalid data are the result of CEMs drift checks, calibrations, audits, or preventative maintenance.
(d) If neither (a) nor (b) above apply, the following substitution scheme is to be used:
Previous 30 day data availability Up to 24 hours of missing data: Greater than 24 hours of missing data
≥ 95% Average of last and first valid hour bracketing the missing data period. The average of first and last valid hour or the 90th percentile value during the last 720 hours, whichever is greater
Previous 30 day data availability Up to 8 hours of missing data: Greater than 8 hours of missing data
≥ 90% and < 95% Average of last and first valid hour bracketing the missing data period The average of first and last valid hour or the 95th percentile value during the last 720 hours, whichever is greater
< 90% Maximum hourly average over the last 30 days Maximum hourly average over the last 30 days
(13) Data availability (in percent) shall be defined as the [(number of valid (excluding substituted) hours of CEM data in a reporting month) minus (hours of calibration/CD/QA checks)] divided by [total hours of operation of the corresponding unit in that month] times 100.
(14) CEMs are required to maintain greater than 90% data availability on a monthly basis. A supplemental report shall be submitted if during any calendar month a CEM system fails to produce 90% data availability, stating the reason(s) for the low data availability.
(15) The following data shall be submitted to the NWCAA on a monthly basis or according to the applicable standard:
(a) Time, date, magnitude, and cause of all emissions or temperatures which exceed the applicable standard(s).
(b) The cause and time periods of any bypass of the air pollution control equipment.
(c) The cause and time periods of CEM downtime not associated with routine QA or maintenance operations.
(d) Data availability for each CEM, listed by unit and parameter.
(e) Supplemental report for system with ≤90% monthly data availability.
(f) Other data or information as required by the Control Officer.
(16) Monthly reports shall be postmarked no later than thirty (30) days after the end of the reporting month.
(17) A Data Assessment Report as defined in 40 CFR Part 60 Appendix F, Section 7 shall be submitted to the NWCAA on a quarterly basis and other time interval as specified by the NWCAA.
NWCAA Regulation