Washington Administrative Code

(1) All measurements of air quality that are expressed as mass per unit volume µg/m3 must be corrected to:(a) A reference temperature of 25°C; and(b) A reference pressure of 760 millimeters of mercury (1,013.2 millibars (hectopascals)).(2) Exception for measurements of PM-2.5 and…

Disclaimer: This table is provided as an overview. See complete rule for more detail.PollutantAveraging TimeLevelRemarksMeasurement MethodInterpretation MethodParticle PollutionPM-1024-hour150 μg/m3Not to be exceeded more than once per year averaged over 3 years40 C.F.R. Part 50,…

The purpose of this chapter is to define maximum allowable levels for radionuclides in the ambient air and control emissions from specific sources.[Statutory Authority: RCW 70.94.331. WSR 86-10-053 (Order 86-04), § 173-480-010, filed 5/7/86.]

(1) The ambient air standards shall apply to the entire state. Measurements may be made at all points up to property lines of point, area and fugitive emission sources.(2) The emission limits of this chapter shall apply to all radionuclide emission units.[Statutory Authority: RCW…

Unless a different meaning is clearly required by context words and phrases used in this chapter shall have the following meanings: General terms common with other chapters as defined in chapter 173-400 WAC, and terms specific to the standards and limits of radionuclides as defin…

Emissions of radionuclides in the air shall not cause a maximum effective dose equivalent of more than 10 mrem/y to the whole body to any member of the public. Compliance with the standard shall be determined by procedures in WAC 173-480-070.[Statutory Authority: RCW 70.94.331 an…

(1) All radionuclide emission units are required to meet the emission standards in this chapter. At a minimum all emission units shall meet chapter 246-247 or 246-248 WAC (as applicable) requiring every reasonable effort to maintain radioactive materials in effluents to unrestric…

(1) Whenever the construction, installation or establishment of a new emission unit subject to this chapter is contemplated, the project shall utilize best available radionuclide control technology (BARCT).(2) Addition to, enlargement, modification, replacement, alteration of any…

(1) The procedures specified in chapter 246-247 or 246-248 WAC (as applicable) shall be used to determine compliance with the standard. Radionuclide emissions shall be determined and dose equivalents to members of the public shall be calculated using department of health approved…

(1) The department or any activated local air pollution control authority may enforce this chapter with the provisions of WAC 173-400-230, Regulatory actions; and 173-400-240, Criminal penalties.(2) The responsible person may also be subject to the provisions of RCW 34.05.350, Em…

This chapter promulgated under RCW 70.94.305 and 70.94.331 establishes fluoride standards for the protection of livestock and vegetation. Standards address the fluoride content of forage and gaseous fluorides in the ambient air.[Statutory Authority: Chapter 70.94 RCW. WSR 87-19-0…

The forage provisions of this chapter apply to all areas where livestock are grazed, and where forage is grown for livestock feed. The ambient action levels apply to areas where fluoride sensitive vegetation is grown for commercial purposes and in public land use areas, such as p…

The definitions of terms contained in chapter 173-400 WAC are incorporated into this chapter by reference. Unless a different meaning is clearly required by context, the following words and phrases as used in this chapter, shall have the following meanings:(1) "Fluorides" means c…

(1) All sampling to determine compliance with these standards shall be conducted in locations and during time periods consistent with protecting livestock.(2) The fluoride content of forage calculated by dry weight shall not exceed:(a) Forty parts per million fluoride ion (40 ppm…

(1) All sampling to determine compliance with these action levels shall be conducted in locations and during time periods consistent with protecting vegetation of the type and in areas covered by this chapter.(2) Gaseous fluorides in the ambient air calculated as HF at standard c…

(1) When requested by the department, persons emitting fluorides to the ambient air shall demonstrate their compliance with WAC 173-481-100 and 173-481-110 by conducting a monitoring program approved in writing by the department. Monitoring shall be required only in areas with fo…

Sampling and analysis shall be in accordance with techniques approved by and on file with the department. Other sampling and methods of analysis which are equivalent in accuracy, sensitivity, reproducibility and applicability under similar conditions may be used after approval by…

The purpose of this rule is to determine reasonably available control technology for emissions of greenhouse gases emitted by petroleum refineries located in Washington state. The emission standards in this rule were developed under the requirements of RCW 70.94.154.[Statutory Au…

(1) This chapter applies to all petroleum refineries in Washington state identified in WAC 173-485-030.(2) All references to federal regulations in this regulation are to the version in effect on July 1, 2013.[Statutory Authority: Chapter 70.94 RCW. WSR 14-12-038 (Order 13-03), §…

Definitions in chapter 173-400 WAC apply to this chapter. Definitions specific to this chapter include:"Baseline greenhouse gas emissions" means greenhouse gas emissions, reported to the United States Environmental Protection Agency (EPA) to comply with 40 C.F.R. Part 98. The bas…

(1) Energy efficiency standard. The owner/operator of each petroleum refinery subject to this rule shall meet the requirement to use reasonably available control technology (RACT) for greenhouse gas emissions by demonstrating the petroleum refinery has a calculated EII® equal to …

(1) Owners/operators of a petroleum refinery demonstrating compliance with the energy efficiency standard shall as part of the annual report required in WAC 173-485-090(1) submit the following information:(a) The letter from Solomon Associates certifying that the petroleum refine…

(1) Requesting credit. Owners/operators of a petroleum refinery demonstrating compliance through the emission reduction requirement in WAC 173-485-040(2) shall submit, as part of each annual report required in WAC 173-485-090(1), requests for a credit against the greenhouse gas e…

(1) To demonstrate compliance with the emission reduction requirement, each petroleum refinery must use monitoring measures that satisfy requirements for petroleum refinery owners/operators reporting greenhouse gas emissions to EPA under 40 C.F.R. Part 98. Unless additional monit…

(1) All records used for preparing submittals to Solomon Associates to support a determination of compliance with the energy efficiency standard or for preparing reports to the permitting authority shall be retained at least five years beyond the date of the last annual report re…

(1) Annual reports. Starting on October 1, 2014, and by October 1 of each year until October 1, 2025, unless compliance has been demonstrated on an earlier date, the owners/operators of a petroleum refinery subject to this standard shall submit reports to their permitting authori…

(1) It is the policy of the department of ecology (ecology) under the authority vested in it by chapter 43.21A RCW to provide for the systematic control of air pollution from air contaminant sources and for the proper development of the state's natural resources.(2) It is the pur…

The definitions of terms contained in chapter 173-400 WAC are by this reference incorporated into this chapter. Unless a different meaning is clearly required by context, the following words and phrases, as used in this chapter, shall have the following meanings:(1) "Bottom loadi…

In addition to the general applicability of chapter 173-400 WAC to all emission sources, specific emission standards listed in this chapter will take precedence over the general emission standards of chapter 173-400 WAC.(1) This chapter shall apply to the specified emission sourc…

(1) The owner or operator of a stationary emission source of VOCs in the following source categories and located in a designated ozone nonattainment area shall register the source with ecology unless registration is required by an authority or the energy facility site evaluation …

To demonstrate compliance with this chapter, refer to WAC 173-400-105.(1) Petroleum refineries.This chapter shall apply to all petroleum refineries with a crude oil or feed stock capacity greater than one million four hundred thirty thousand liters (9,000 bbl) per day.(a) Vacuum …

(1) Other emission reduction methods may be used if the source operator demonstrates to ecology that they are at least as effective as the required methods; and(2) The operation of a natural gas-fired incinerator and associated capture system installed for the purpose of complyin…

The provisions of WAC 173-400-110 shall apply to all new sources and emissions units to which this chapter is applicable.[Statutory Authority: Chapter 70.94 RCW. WSR 91-05-064 (Order 90-06), § 173-490-090, filed 2/19/91, effective 3/22/91. Statutory Authority: RCW 43.21A.080 and …

(1) Specific applicability. This section shall apply to all petroleum refineries as qualified in WAC 173-490-025.(2) Provisions for specific processes.(a) The owner(s) or operator(s) of a petroleum refinery shall:(i) Develop and conduct a monitoring program consistent with the pr…

(1) Specific applicability.(a) This section shall apply to all petroleum liquid storage vessels equipped with external floating roofs, having capacities greater than 150,000 liters (40,000 gallons), and as qualified in WAC 173-490-025.(b) This section does not apply to petroleum …

(1) Specific applicability.This section shall apply to all gasoline transport tanks equipped for gasoline vapor collection and all vapor collection systems at gasoline loading terminals, bulk gasoline plants and gasoline dispensing facilities as qualified in WAC 173-490-025 and 1…

(1) Specific applicability.(a) This section shall apply to all packaging rotogravure, publication rotogravure, specialty printing operations, and flexographic printing facilities that use more than 90 megagrams (100 tons) per year of VOCs as a component of ink, for the thinning o…

(1) Specific applicability. This section shall apply to surface coating of miscellaneous metal parts and products in the following industries, if the potential uncontrolled emissions of VOC is greater than 10 tons per year and as qualified in WAC 173-490-205 (1)(b),(c), and (d), …

(1) Specific applicability.(a) This section shall apply to all flatwood panel manufacturers and surface finishing facilities as qualified in WAC 173-490-207 (1)(b) and (c) and 173-490-025.(b) These chapters shall apply to all operations and equipment that is used to apply, convey…

(1) Specific applicability. This section shall apply to all aerospace component coating facilities that emit an annual average of eighteen kilograms (forty pounds) or more of VOCs per operating day and as qualified in WAC 173-490-025.(2) It shall be unlawful for any person to cau…

(1) It is the policy of the department of ecology (ecology) under the authority vested in it by chapters 43.21A and 70.94 RCW to provide for the systematic control of air pollution from air contaminant sources and for the proper development of the state's natural resources.(2) It…

This chapter shall apply to gasoline marketing operations, including the storage, transport, and transfer of gasoline, including the transfer from storage tanks into transport tanks, and from storage tanks into motor vehicles.[Statutory Authority: RCW 70.94.165. WSR 98-01-184 (Or…

The definitions of terms contained in chapter 173-400 WAC are by this reference incorporated into this chapter. Unless a different meaning is clearly required by context, the following words and phrases, as used in this chapter, shall have the following meanings:(1) "Bottom loadi…

(1) The owner or operator of a gasoline loading terminal, bulk gasoline plant, or gasoline dispensing facility subject to the provisions of WAC 173-491-040 (2) through (5) shall register annually the facility with ecology or local air authority. Annual registration shall be made …

(1) Fixed-roof gasoline storage tanks.(a) All fixed-roof gasoline storage tanks having a nominal capacity greater than forty thousand gallons shall comply with one of the following:(i) Meet the equipment specifications and maintenance requirements of the federal standards of perf…

[Statutory Authority: 1996 c 294. WSR 97-04-012 (Order 95-15), § 173-491-050, filed 1/27/97, effective 2/27/97. Statutory Authority: RCW 70.94.331. WSR 93-13-068 (Order 92-47), § 173-491-050, filed 6/17/93, effective 7/18/93; WSR 93-03-089 (Order 92-42), § 173-491-050, filed 1/20…

The purpose of this regulation is to reduce carbon monoxide emissions from gasoline powered motor vehicles, through the wintertime use of oxygenated gasolines.[Statutory Authority: RCW 70.94 and section 211(m) of the Federal Clean Air Act. WSR 96-19-094 (Order 96-03), § 173-492-0…

This regulation shall apply to all gasoline offered for sale in the control areas and over the control periods defined in WAC 173-492-070.[Statutory Authority: Chapter 70.94 RCW and 1990 42 U.S.C. 7545 Sec. 211(m). WSR 92-24-057 (Order 91-58), § 173-492-020, filed 11/30/92, effec…

The following words and phrases shall have the following meanings:"Authority" means an air pollution control authority activated pursuant to chapter 70.94 RCW that has jurisdiction over the subject source."Blender" means a person who owns oxygenated gasoline which is sold or disp…

(1) Retail sales. No gasoline intended as a final product for fueling of motor vehicles within the control areas and control periods as defined in WAC 173-492-070 shall be offered for sale, sold or dispensed by any person unless the gasoline has at least 2.0% oxygen content by we…