40 CFR 81.348: Washington.

Washington—TSP

Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards

Eastern Washington-Northern Idaho Interstate AQCR 62 (Washington Portion):

Spokane X

Clarkston X

Remainder of AQCR 62 (Washington Portion) X

Portland Interstate AQCR 193 (Washington Portion):

Longview—industrial area X

Vancouver—small portions of the industrial port area X

Remainder of AQCR 193 (Washington Portion) X

Northern Washington Intrastate AQCR 227 X

Olympic-Northwest Washington Intrastate AQCR 228:

Port Angeles—small area of the CBD X

Remainder of AQCR 228 X

Puget Sound Intrastate AQCR 229 Seattle—that area including the north portion of the Duwamish industrial area, and extending to the southern boundary of the CBD X

Seattle—an area of the Duwamish extending approximately 21⁄2 miles further south than the above area X

Renton X

Kent X

Tacoma—that area, including the Tide Flats industrial area, east end of the CBD and the north end of the South Tacoma Way corridor X

Remainder of AQCR 229 X

South Central Washington Intrastate AQCR 230 X

Washington—1971 Sulfur Dioxide NAAQS

[Primary and Secondary]

Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards

Eastern Washington-Northern Idaho Interstate AQCR 62 (Washington Portion) X

Portland Interstate AQCR 193 (Washington Portion) X

Northern Washington Intrastate AQCR 227 X

Olympic-Northwest Washington Intrastate AQCR 228 X

Puget Sound Intrastate AQCR 229:

Tacoma-a parabolic shaped area extending approximately 31⁄2 miles SSW from the ASARCO copper smelter X

Remainder of AQCR 229 X

South Central Washington Intrastate AQCR 230 X

Washington—2010 Sulfur Dioxide NAAQS

[Primary]

Designated area 1 Designation

Date 2 Type

Whatcom County (part) 1/16/2025 Attainment.

That portion of Whatcom County encompassed by the rectangle with the vertices using Universal Traverse Mercator (UTM) coordinates in UTM zone 10 with datum NAD83 as follows: (1) Vertices—UTM Easting (m) 519671, UTM Northing (m) 5412272; (2) Vertices—UTM Easting (m) 524091, UTM Northing (m) 5412261; (3) Vertices—UTM Easting (m) 519671, UTM Northing (m) 5409010; (1) Vertices—UTM Easting (m) 524111, UTM Northing (m) 5409044.

Lewis County Unclassifiable.

Thurston County Unclassifiable.

Rest of State:

Adams Attainment/Unclassifiable.

Asotin Attainment/Unclassifiable.

Benton Attainment/Unclassifiable.

Chelan 4/30/2021 Attainment/Unclassifiable.

Clallam Attainment/Unclassifiable.

Clark Attainment/Unclassifiable.

Columbia Attainment/Unclassifiable.

Cowlitz Attainment/Unclassifiable.

Douglas 4/30/2021 Attainment/Unclassifiable.

Ferry Attainment/Unclassifiable.

Franklin Attainment/Unclassifiable.

Garfield Attainment/Unclassifiable.

Grant Attainment/Unclassifiable.

Grays Harbor Attainment/Unclassifiable.

Island Attainment/Unclassifiable.

Jefferson Attainment/Unclassifiable.

King Attainment/Unclassifiable.

Kitsap Attainment/Unclassifiable.

Kittitas Attainment/Unclassifiable.

Klickitat Attainment/Unclassifiable.

Lincoln Attainment/Unclassifiable.

Mason Attainment/Unclassifiable.

Okanogan Attainment/Unclassifiable.

Pacific Attainment/Unclassifiable.

Pend Oreille Attainment/Unclassifiable.

Pierce Attainment/Unclassifiable.

San Juan Attainment/Unclassifiable.

Skagit Attainment/Unclassifiable.

Skamania Attainment/Unclassifiable.

Snohomish Attainment/Unclassifiable.

Spokane Attainment/Unclassifiable.

Stevens Attainment/Unclassifiable.

Wahkiakum Attainment/Unclassifiable.

Walla Walla Attainment/Unclassifiable.

Whatcom (remainder) 4/30/2021 Attainment/Unclassifiable.

Whitman Attainment/Unclassifiable.

Yakima Attainment/Unclassifiable.

1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

2 This date is April 9, 2018, unless otherwise noted.

Washington-Carbon Monoxide

Designated Area Designation Classification

Date 1 Type Date 1 Type

Seattle-Tacoma Area:

Seattle-Tacoma Urban Area (as defined by the Washington Department of Transportation urban area maps)

King County (part) Attainment

Pierce County (part) Attainment

Snohomish County (part) Attainment

Spokane Area

Spokane County (part)

Spokane urban area (as defined by the Washington Department of Transportation urban area maps) 8/29/2005 Attainment

Vancouver Area:

Clark County (part) Air Quality Maintenance Area Attainment

Yakima Area:

Yakima County (part) 12/31/2002 Attainment

Portion of the Central Business District Street intersections: S. 16th Ave. & W Mead Ave, S. 16th Ave & Hathaway Ave., E “I” St. & N 1st St., N 1st St & E “G” St., E “G” St & N 8th St., N 8th St. & Pitcher St., Pitcher St. & I-82 Interchange, Nob Hill Blvd & I-82 Interchange, Rudkin Rd & I-82 Interchange, S 1st St. & Old Town Rd., Old Town Rd & Main St., W Washington & S 1st St., E Mead Ave & S 1st St., S 16th Ave & W Mead Ave.

AQCR 062 E. Washington-N. Idaho Interstate (Remainder of) Unclassifiable/Attainment

Adams County

Asotin County

Columbia County

Garfield County

Grant County

Lincoln County

Spokane County (part)

area outside Spokane urban area

Whitman County

AQCR 193 Portland Interstate (Remainder of) Unclassifiable/Attainment

Clark County (part)

area outside of Vancouver AQMA

Cowlitz County

Lewis County

Skamania County

Wahkiakum County

AQCR 227 Northern Washington Intrastate Unclassifiable/Attainment

Chelan County

Douglas County

Ferry County

Okanogan County

Pend Oreille County

Stevens County

AQCR 228 Olympia-Northwest Washington Intrastate Unclassifiable/Attainment

Clallam County

Grays Harbor County

Island County

Jefferson County

Mason County

Pacific County

San Juan County

Skagit County

Thurston County

Whatcom County

AQCR 229 Puget Sound Intrastate (Remainder of) Unclassifiable/Attainment

King County (part)

area outside the Seattle-Tacoma Urban Area

Kitsap County

Pierce County (part)

area outside the Seattle-Tacoma Urban Area

Snohomish County (part)

area outside the Seattle-Tacoma Urban Area

AQCR 230 S. Central Washington Intrastate (Remainder of) Unclassifiable/Attainment

Benton County

Franklin County

Kittitas County

Klickitat County

Walla Walla County

Yakima County (part)

portion outside the Central Business District

1 This date is November 15, 1990, unless otherwise noted.

Washington—Ozone (1-Hour Standard)2

Designated area Designation Classification

Date 1 Type Date 1 Type

Portland-Vancouver AQMA Area:

Clark County (part) Air Quality Maintenance Area Attainment

Seattle-Tacoma Area:

The following boundary includes all of Pierce County, and all of King County except a small portion on the north-east corner and the western portion of Snohomish County: Starting at the mouth of the Nisqually river extend northwesterly along the Pierce County line to the southernmost point of the west county line of King County; thence northerly along the county line to the southernmost point of the west county line of Snohomish County; thence northerly along the county line to the intersection with SR 532; thence easterly along the north line of SR 532 to the intersection of I-5, continuing east along the same road now identified as Henning Rd., to the intersection with SR 9 at Bryant; thence continuing easterly on Bryant East Rd. and Rock Creek Rd., also identified as Grandview Rd., approximately 3 miles to the point at which it is crossed by the existing BPA electrical transmission line; thence southeasterly along the BPA transmission line approximately 8 miles to point of the crossing of the south fork of the Stillaguamish River; thence continuing in a southeasterly direction in a meander line following the bed of the River to Jordan Road; southerly along Jordan Road to the north city limits of Granite Falls; thence following the north and east city limits to 92nd St. N.E. and Menzel Lake Rd.; thence south-southeasterly along the Menzel Lake Rd. and the Lake Roesiger Rd. a distance of approximately 6 miles to the northernmost point of Lake Roesiger; thence southerly along a meander line following the middle of the Lake and Roesiger Creek to Woods Creek; thence southerly along a meander line following the bed of the Creek approximately 6 miles to the point the Creek is crossed by the existing BPA electrical transmission line; thence easterly along the BPA transmission line approximately 0.2 miles; thence southerly along the BPA Chief Joseph-Covington electrical transmission line approximately 3 miles to the north line of SR 2; thence southeasterly along SR 2 to the intersection with the east county line of King County; thence south along the county line to the northernmost point of the east county line of Pierce County; thence along the county line to the point of beginning at the mouth of the Nisqually River Attainment

AQCR 062 E Washington-N Idaho Interstate (part) Attainment

Spokane County Unclassifiable/Attainment

AQCR 062 E Washington-N Idaho Interstate (Remainder of) Unclassifiable/Attainment

Adams County

Asotin County

Columbia County

Garfield County

Grant County

Lincoln County

Whitman County

AQCR 193 Portland Interstate (Remainder of) Unclassifiable/Attainment

Clark County (part) Remainder of county

Cowlitz County

Lewis County

Skamania County

Wahkiakum County

AQCR 227 Northern Washington Intrastate Unclassifiable/Attainment

Chelan County

Douglas County

Ferry County

Okanogan County

Pend Oreille County

Stevens County

AQCR 228 Olympic-Northwest Washington Intrastate Unclassifiable/Attainment

Clallam County

Grays Harbor County

Island County

Jefferson County

Mason County

Pacific County

San Juan County

Skagit County

Thurston County

Whatcom County

AQCR 229 Puget Sound Intrastate (Remainder of) Unclassifiable/Attainment

King County (Part) Remainder of County

Kitsap County

Snohomish County (Part) Remainder of County

AQCR 230 South Central Washington Intrastate Unclassifiable/Attainment

Benton County

Franklin County

Kittitas County

Klickitat County

Walla Walla County

Yakima County

1 This date is October 18, 2000, unless otherwise noted.

2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Washington. The Portland-Vancouver AQMA and Seattle-Tacoma areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.

Washington—PM-10

Designated Area Designation Classification

Date Type Date Type

King County:

The portion of the City of Seattle bounded on the east by I-5/East Duwamish Greenbelt, on the south by 104th street, on the west by the West Duwamish Greenbelt north to Fairmont Avenue, S.W., north on Fairmont Avenue to Elliot Bay, and Dearborn Street to I-5 5/14/2001 Attainment

The City of Kent and a portion of the Green River valley bounded on the east and west by the 100 foot contour, on the north by South 212th Street, and on the south by Highway 516 5/14/2001 Attainment

Pierce County:

Tacoma metropolitan area bounded on the north by Marine View Drive from Commencement Bay east to the 100 foot contour, southeast along the 100 foot contour to 64th Avenue east, south along 64th Avenue east as extended to I-5, I-5 west to the 100 foot contour near Pacific Avenue, and north along the 100 foot contour to Commencement Bay 5/14/2001 Attainment

Spokane County:

The area bounded on the south by a line from Universal Transmercator (UTM) coordinate 489000mE, 5271000mN west to 458000mE, 5271000mN, thence north along a line to coordinate 458000mE, 5288000mN, thence east to 463000mE, 5288000mN, thence north to 463000mE, 5292000mN, thence east to 481000mE, 5292000mN, thence south to 481000mE, 5288000mN, thence east to 489000mE, 5288000mN, thence south to the beginning coordinate, 489000mE, 5271000mN 8/30/2005 Attainment

Yakima County

The area bounded on the south by a line from UTM coordinate 694000mW, 5157000mN, west to 681000mW, 5157000mN, thence north along a line to coordinate 681000mN, 5172000mN, thence east to 694000mW, 5172000mN, thence south to the beginning coordinate 694000mW, 5157000mN, excluding the area within the exterior boundary of the Yakama Indian Reservation 3/10/2005 Attainment

Thurston County

Cities of Olympia, Tumwater, and Lacey 12/04/2000 Attainment

Walla Walla and Benton Counties

Wallula:

The area bounded on the south by a line from UTM coordinate 5099975mN, 362500mE, west to 5099975mN, 342500mE, thence north along a line to coordinate 5118600mN, 342500mE, thence east to 5118600mN, 362500mE, thence south to the beginning coordinate 5099975mN, 362500mE 9/26/2005 Attainment.

Rest of State 11/15/1990 Unclassifiable

Washington—1997 Annual PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification

Date 1 Type Date Type

Portland—Vancouver AQMA:

Clark County (part) Unclassifiable/Attainment

Air quality maintenance area

Seattle—Tacoma Area: Unclassifiable/Attainment

The following boundary includes all of Pierce County, and all of King County except a small portion on the north-east corner and the western portion of Snohomish County: Starting at the mouth of the Nisqually River extend northwesterly along the Pierce County line to the southernmost point of the west county line of King County; thence northerly along the county line to the southernmost point of the west county line of Snohomish County; thence northerly along the county line to the intersection with SR 532; thence easterly along the north line of SR 532 to the intersection of I-5, continuing east along the same road now identified as Henning Rd., to the intersection with SR 9 at Bryant;

thence continuing easterly on Bryant East Rd. and Rock Creek Rd., also identified as Grandview Rd., approximately 3 miles to the point at which it is crossed by the existing BPA electrical transmission line; thence southeasterly along the BPA transmission line approximately 8 miles to point of the crossing of the south fork of the Stillaguamish River; thence continuing in a southeasterly direction in a meander line following the bed of the River to Jordan Road; southerly along Jordan Road to the north city limits of Granite Falls; thence following the north and east city limits to 92nd St. N.E. and Menzel Lake Rd.; thence south-southeasterly along the Menzel Lake Rd. and the Lake Roesiger Rd. a distance of approximately 6 miles to the northernmost point of Lake Roesiger; thence southerly along a meander line following the middle of the Lake and Roesiger Creek to Woods Creek; thence southerly along a meander line following the bed of the Creek approximately 6 miles to the point the Creek is crossed by the existing BPA electrical transmission line; thence easterly along the BPA transmission line approximately 0.2 miles; thence southerly along the BPA Chief Joseph-Covington electrical transmission line approximately 3 miles to the north line of SR 2; thence southeasterly along SR 2 to the intersection with the east county line of King County; thence south along the county line to the northernmost point of the east county line of Pierce County; thence along the county line to the point of beginning at the mouth of the Nisqually River.

AQCR 062 E Washington-N Idaho Interstate (part):

Spokane County Unclassifiable/Attainment

AQCR 062 E Washington-N Idaho Interstate (remainder of):

Adams County Unclassifiable/Attainment

Asotin County Unclassifiable/Attainment

Columbia County Unclassifiable/Attainment

Garfield County Unclassifiable/Attainment

Grant County Unclassifiable/Attainment

Lincoln County Unclassifiable/Attainment

Whitman County Unclassifiable/Attainment

AQCR 193 Portland Interstate (remainder of):

Clark County (remainder) Unclassifiable/Attainment

Cowlitz County Unclassifiable/Attainment

Lewis County Unclassifiable/Attainment

Skamania County Unclassifiable/Attainment

Wahkiakum County Unclassifiable/Attainment

AQCR 227 Northern Washington Intrastate:

Chelan County Unclassifiable/Attainment

Douglas County Unclassifiable/Attainment

Ferry County Unclassifiable/Attainment

Okanogan County Unclassifiable/Attainment

Pend Oreille County Unclassifiable/Attainment

Stevens County Unclassifiable/Attainment

AQCR 228 Olympic-Northwest Washington Intrastate:

Clallam County Unclassifiable/Attainment

Grays Harbor County Unclassifiable/Attainment

Island County Unclassifiable/Attainment

Jefferson County Unclassifiable/Attainment

Mason County Unclassifiable/Attainment

Pacific County Unclassifiable/Attainment

San Juan County Unclassifiable/Attainment

Skagit County Unclassifiable/Attainment

Thurston County Unclassifiable/Attainment

Whatcom County Unclassifiable/Attainment

AQCR 229 Puget Sound Intrastate (remainder of):

King County (remainder) Unclassifiable/Attainment

Kitsap County Unclassifiable/Attainment

Snohomish County (remainder) Unclassifiable/Attainment

AQCR 230 South Central Washington Intrastate:

Benton County Unclassifiable/Attainment

Franklin County Unclassifiable/Attainment

Kittitas County Unclassifiable/Attainment

Klickitat County Unclassifiable/Attainment

Walla Walla County Unclassifiable/Attainment

Yakima County Unclassifiable/Attainment

Seattle-Tacoma Area:

Pierce County Unclassifiable/Attainment

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after January 5, 2005, unless otherwise noted.

Washington—2012 Annual PM2.5 NAAQS

[Primary]

Designated area 1 Designation Classification

Date 2 Type Date 2 Type

Statewide:

Adams County Unclassifiable/Attainment

Asotin County Unclassifiable/Attainment

Benton County Unclassifiable/Attainment

Clark County Unclassifiable/Attainment

Clallam County Unclassifiable/Attainment

Columbia County Unclassifiable/Attainment

Cowlitz County Unclassifiable/Attainment

Douglas County Unclassifiable/Attainment

Ferry County Unclassifiable/Attainment

Franklin County Unclassifiable/Attainment

Garfield County Unclassifiable/Attainment

Grant County Unclassifiable/Attainment

Grays Harbor County Unclassifiable/Attainment

Island County Unclassifiable/Attainment

Jefferson County Unclassifiable/Attainment

King County Unclassifiable/Attainment

Kitsap County Unclassifiable/Attainment

Kittitas County Unclassifiable/Attainment

Klickitat County Unclassifiable/Attainment

Lincoln County Unclassifiable/Attainment

Mason County Unclassifiable/Attainment

Okanogan County Unclassifiable/Attainment

Pacific County Unclassifiable/Attainment

Pend Oreille County Unclassifiable/Attainment

Pierce County Unclassifiable/Attainment

San Juan County Unclassifiable/Attainment

Skagit County Unclassifiable/Attainment

Skamania County Unclassifiable/Attainment

Snohomish County Unclassifiable/Attainment

Spokane County Unclassifiable/Attainment

Stevens County Unclassifiable/Attainment

Thurston County Unclassifiable/Attainment

Wahkiakum County Unclassifiable/Attainment

Walla Walla County Unclassifiable/Attainment

Whatcom County Unclassifiable/Attainment

Whitman County Unclassifiable/Attainment

Yakima County Unclassifiable/Attainment

1 Includes areas of Indian country located in each county or area, except as otherwise specified.

2 This date is April 15, 2015, unless otherwise noted.

Washington—1997 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification

Date 1 Type Date Type

Tacoma, WA:

Pierce County (part) Unclassifiable/Attainment

Starting from where an extension of Kennedy Road Northeast would intersect Commencement Bay, proceed north to the intersection of Marine View Drive (State Route 509) and Kennedy Road Northeast. Proceed south on Marine View Drive to Hylebos Creek. Proceed south along Hylebos Creek to 12th Street East. Proceed east on 12th Street East to 70th Avenue East. Proceed south on 70th Avenue East to State Route 99 (S.R. 99). Proceed north on S.R. 99 0.1 mile north of Birch Street to a driveway to the east. Proceed east along the driveway and continue east along the same alignment to the Pierce County Line/Comprehensive Urban Growth Area (CUGA) boundary. Proceed east along the Pierce County Line/CUGA boundary to the eastern boundary of Edgewood. Proceed south along the eastern boundary of Edgewood to eastern boundary of the Sumner Urban Service Area. Proceed south along eastern boundary of the Sumner Urban Service Area to the eastern boundary of the Puyallup Urban Service Area. Proceed south along the eastern boundary of the Puyallup Urban Service Area to the eastern boundary of Puyallup/CUGA boundary.

Proceed south and then west along the CUGA boundary to the eastern boundary of McChord Air Force Base. Proceed north along the eastern boundary of McChord Air Force Base to the northernmost point on the eastern boundary. Proceed from the northernmost point on the eastern boundary of McChord Air Force Base to the south right-of-way of S.R. 512. Proceed west along the south right-of-way of S.R. 512 to the south right-of-way of I-5. Proceed south along the south right-of-way to I-5 to the point opposite the boundary between Lakewood and Camp Murray. Proceed north across I-5 to the boundary between Lakewood and Camp Murray. Proceed north along the western boundary of Lakewood to the point where the western boundary coincides with the CUGA boundary. Proceed north along the CUGA boundary to the southern boundary of Point Defiance Park. Proceed east along the southern boundary of Point Defiance Park to Commencement Bay/CUGA boundary. Proceed southeast, then northeast, and finally northwest along the CUGA boundary to the starting point.

Rest of State:

Adams County Unclassifiable/Attainment

Asotin County Unclassifiable/Attainment

Benton County Unclassifiable/Attainment

Clark County Unclassifiable/Attainment

Clallam County Unclassifiable/Attainment

Columbia County Unclassifiable/Attainment

Cowlitz County Unclassifiable/Attainment

Douglas County Unclassifiable/Attainment

Ferry County Unclassifiable/Attainment

Franklin County Unclassifiable/Attainment

Garfield County Unclassifiable/Attainment

Grant County Unclassifiable/Attainment

Grays Harbor County Unclassifiable/Attainment

Island County Unclassifiable/Attainment

Jefferson County Unclassifiable/Attainment

King County Unclassifiable/Attainment

Kitsap County Unclassifiable/Attainment

Kittitas County Unclassifiable/Attainment

Klickitat County Unclassifiable/Attainment

Lincoln County Unclassifiable/Attainment

Mason County Unclassifiable/Attainment

Okanogan County Unclassifiable/Attainment

Pacific County Unclassifiable/Attainment

Pend Oreille County Unclassifiable/Attainment

Pierce County (remainder) Unclassifiable/Attainment

San Juan County Unclassifiable/Attainment

Skagit County Unclassifiable/Attainment

Skamania County Unclassifiable/Attainment

Snohomish County Unclassifiable/Attainment

Spokane County Unclassifiable/Attainment

Stevens County Unclassifiable/Attainment

Thurston County Unclassifiable/Attainment

Wahkiakum County Unclassifiable/Attainment

Walla Walla County Unclassifiable/Attainment

Whatcom County Unclassifiable/Attainment

Whitman County Unclassifiable/Attainment

Yakima County Unclassifiable/Attainment

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after January 5, 2005, unless otherwise noted.

Washington—2006 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification

Date 1 Type Date 2 Type

Tacoma, WA

Pierce County (part) 3/12/2015 Attainment

Starting from where an extension of Kennedy Road Northeast would intersect Commencement Bay, proceed north to the intersection of Marine View Drive (State Route 509) and Kennedy Road Northeast. Proceed south on Marine View Drive to Hylebos Creek. Proceed south along Hylebos Creek to 12th Street East. Proceed east on 12th Street East to 70th Avenue East. Proceed south on 70th Avenue East to State Route 99 (S.R. 99). Proceed north on S.R. 99 0.1 mile north of Birch Street to a driveway to the east. Proceed east along the driveway and continue east along the same alignment to the Pierce County Line/Comprehensive Urban Growth Area (CUGA) boundary. Proceed east along the Pierce County Line/CUGA boundary to the eastern boundary of Edgewood. Proceed south along the eastern boundary of Edgewood to eastern boundary of the Sumner Urban Service Area. Proceed south along eastern boundary of the Sumner Urban Service Area to the eastern boundary of the Puyallup Urban Service Area. Proceed south along the eastern boundary of the Puyallup Urban Service Area to the eastern boundary of Puyallup/CUGA boundary.

Proceed south and then west along the CUGA boundary to the eastern boundary of McChord Air Force Base. Proceed north along the eastern boundary of McChord Air Force Base to the northernmost point on the eastern boundary. Proceed from the northernmost point on the eastern boundary of McChord Air Force Base to the south right-of-way of S.R. 512. Proceed west along the south right-of-way of S.R. 512 to the south right-of-way of I-5. Proceed south along the south right-of-way to I-5 to the point opposite the boundary between Lakewood and Camp Murray. Proceed north across I-5 to the boundary between Lakewood and Camp Murray. Proceed north along the western boundary of Lakewood to the point where the western boundary coincides with the CUGA boundary. Proceed north along the CUGA boundary to the southern boundary of Point Defiance Park. Proceed east along the southern boundary of Point Defiance Park to Commencement Bay/CUGA boundary. Proceed southeast, then northeast, and finally northwest along the CUGA boundary to the starting point

Rest of State:

Adams County Unclassifiable/Attainment

Asotin County Unclassifiable/Attainment

Benton County Unclassifiable/Attainment

Clark County Unclassifiable/Attainment

Clallam County Unclassifiable/Attainment

Columbia County Unclassifiable/Attainment

Cowlitz County Unclassifiable/Attainment

Douglas County Unclassifiable/Attainment

Ferry County Unclassifiable/Attainment

Franklin County Unclassifiable/Attainment

Garfield County Unclassifiable/Attainment

Grant County Unclassifiable/Attainment

Grays Harbor County Unclassifiable/Attainment

Island County Unclassifiable/Attainment

Jefferson County Unclassifiable/Attainment

King County Unclassifiable/Attainment

Kitsap County Unclassifiable/Attainment

Kittitas County Unclassifiable/Attainment

Klickitat County Unclassifiable/Attainment

Lincoln County Unclassifiable/Attainment

Mason County Unclassifiable/Attainment

Okanogan County Unclassifiable/Attainment

Pacific County Unclassifiable/Attainment

Pend Oreille County Unclassifiable/Attainment

Pierce County (remainder) Unclassifiable/Attainment

San Juan County Unclassifiable/Attainment

Skagit County Unclassifiable/Attainment

Skamania County Unclassifiable/Attainment

Snohomish County Unclassifiable/Attainment

Spokane County Unclassifiable/Attainment

Stevens County Unclassifiable/Attainment

Thurston County Unclassifiable/Attainment

Wahkiakum County Unclassifiable/Attainment

Walla Walla County Unclassifiable/Attainment

Whatcom County Unclassifiable/Attainment

Whitman County Unclassifiable/Attainment

Yakima County Unclassifiable/Attainment

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 30 days after November 13, 2009, unless otherwise noted.

2 This date is July 2, 2034, unless otherwise noted.

Washington—NO2 (1971 Annual Standard)

Designated area Does not meet primary standards Cannot be classified or better than national standards

Eastern Washington-Northern Idaho, Interstate AQCR 62 (Washington Portion) X

Portland Interstate AQCR 193 (Washington Portion) X

Northern Washington Intrastate AQCR 227 X

Olympic-Northwest Washington, Intrastate AQCR 228 X

Puget Sound Intrastate AQCR 229 X

South Central Washington Intrastate AQCR 230 X

Washington—NO2

[2010 1-Hour standard]

Designated area Designation a

Date 1 Type

Puget Sound Intrastate AQCR Unclassifiable/Attainment.

Portland (Oregon)-Southwest Washington Interstate AQCR (Washington portion) Unclassifiable/Attainment.

Eastern Washington-Northern Idaho Interstate AQCR (Washington portion) Unclassifiable/Attainment.

Northern Washington Intrastate AQCR Unclassifiable/Attainment.

Olympic-Northwest Washington Intrastate AQCR Unclassifiable/Attainment.

South Central Washington Intrastate AQCR Unclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after October 31, 2011, unless otherwise noted.

Washington—1997 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area Designation a Category/classification

Date 1 Type Date 1 Type

Portland-Vancouver AQMA Area:

Clark County (part) Unclassifiable/Attainment

Air Quality Maintenance Area

Seattle-Tacoma Area: Unclassifiable/Attainment

The following boundary includes all of Pierce County, and all of King County except a small portion on the north-east corner and the western portion of Snohomish County: Starting at the mouth of the Nisqually river extend northwesterly along the Pierce County line to the southernmost point of the west county line of King County; thence northerly along the county line to the southernmost point of the west county line of Snohomish County; thence northerly along the county line to the intersection with SR 532; thence easterly along the north line of SR 532 to the intersection of I-5, continuing east along the same road now identified as Henning Rd., to the intersection with SR 9 at Bryant; thence continuing easterly on Bryant East Rd. and Rock Creek Rd., also identified as Grandview Rd., approximately 3 miles to the point at which it is crossed by the existing BPA electrical transmission line; thence southeasterly along the BPA transmission line approximately 8 miles to point of the crossing of the south fork of the Stillaguamish River; thence continuing in a southeasterly direction in a meander line following the bed of the River to Jordan Road; southerly along Jordan Road to the north city limits of Granite Falls; thence following the north and east city limits to 92nd St. NE., and Menzel Lake Rd.; thence south-southeasterly along the Menzel Lake Rd., and the Lake Roesiger Rd., a distance of approximately 6 miles to the northernmost point of Lake Roesiger; thence southerly along a meander line following the middle of the Lake and Roesiger Creek to Woods Creek; thence southerly along a meander line following the bed of the Creek approximately 6 miles to the point the Creek is crossed by the existing BPA electrical transmission line; thence easterly along the BPA transmission line approximately 0.2 miles; thence southerly along the BPA Chief Joseph-Covington electrical transmission line approximately 3 miles to the north line of SR 2; thence southeasterly along SR 2 to the intersection with the east county line of King County; thence south along the county line to the northernmost point of the east county line of Pierce County; thence along the county line to the point of beginning at the mouth of the Nisqually River

AQCR 062 E Washington-N Idaho Interstate (part) Unclassifiable/Attainment

Spokane County Unclassifiable/Attainment

AQCR 062 E Washington-N Idaho Interstate (remainder of) Unclassifiable/Attainment

Adams County

Asotin County

Columbia County

Garfield County

Grant County

Lincoln County

Whitman County

AQCR 193 Portland Interstate (remainder of) Unclassifiable/Attainment

Clark County (part) remainder

Cowlitz County

Lewis County

Skamania County

Wahkiakum County

AQCR 227 Northern Washington Intrastate Unclassifiable/Attainment

Chelan County

Douglas County

Ferry County

Okanogan County

Pend Oreille County

Stevens County

AQCR 228 Olympic-Northwest Washington Intrastate Unclassifiable/Attainment

Clallam County

Grays Harbor County

Island County

Jefferson County

Mason County

Pacific County

San Juan County

Skagit County

Thurston County

Whatcom County

AQCR 229 Puget Sound Intrastate (remainder of) Unclassifiable/Attainment

King County (part) remainder

Kitsap County

Snohomish County (part) remainder

AQCR 230 South Central Washington Intrastate Unclassifiable/Attainment

Benton County

Franklin County

Kittitas County

Klickitat County

Walla Walla County

Yakima County

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is June 15, 2004, unless otherwise noted.

Washington—2008 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area Designation 1 Classification

Date 2 Type Date 1 Type

Clark County Unclassifiable/Attainment

King County Unclassifiable/Attainment

Pierce County Unclassifiable/Attainment

Spokane County Unclassifiable/Attainment

Thurston County Unclassifiable/Attainment

Rest of state and rest of Indian country Unclassifiable/Attainment

1 Includes any Indian country in each county or area, unless otherwise specified.

2 This date is July 20, 2012, unless otherwise noted.

Washington—2015 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area 1 Designation Classification

Date 2 Type Date 2 Type

Tri-Cities Area, WA 1/16/2018 Unclassifiable

Benton County.

Franklin County.

Walla Walla County.

Adams County 1/16/2018 Attainment/Unclassifiable

Asotin County 1/16/2018 Attainment/Unclassifiable

Chelan County 1/16/2018 Attainment/Unclassifiable

Clallam County 1/16/2018 Attainment/Unclassifiable

Clark County Attainment/Unclassifiable

Columbia County 1/16/2018 Attainment/Unclassifiable

Cowlitz County Attainment/Unclassifiable

Douglas County 1/16/2018 Attainment/Unclassifiable

Ferry County 1/16/2018 Attainment/Unclassifiable

Garfield County 1/16/2018 Attainment/Unclassifiable

Grant County 1/16/2018 Attainment/Unclassifiable

Grays Harbor County 1/16/2018 Attainment/Unclassifiable

Island County 1/16/2018 Attainment/Unclassifiable

Jefferson County 1/16/2018 Attainment/Unclassifiable

King County 1/16/2018 Attainment/Unclassifiable

Kitsap County 1/16/2018 Attainment/Unclassifiable

Kittitas County 1/16/2018 Attainment/Unclassifiable

Klickitat County 1/16/2018 Attainment/Unclassifiable

Lewis County 1/16/2018 Attainment/Unclassifiable

Lincoln County 1/16/2018 Attainment/Unclassifiable

Mason County 1/16/2018 Attainment/Unclassifiable

Okanogan County 1/16/2018 Attainment/Unclassifiable

Pacific County 1/16/2018 Attainment/Unclassifiable

Pend Oreille County 1/16/2018 Attainment/Unclassifiable

Pierce County 1/16/2018 Attainment/Unclassifiable

San Juan County 1/16/2018 Attainment/Unclassifiable

Skagit County 1/16/2018 Attainment/Unclassifiable

Skamania County Attainment/Unclassifiable

Snohomish County 1/16/2018 Attainment/Unclassifiable

Spokane County 1/16/2018 Attainment/Unclassifiable

Stevens County 1/16/2018 Attainment/Unclassifiable

Thurston County 1/16/2018 Attainment/Unclassifiable

Wahkiakum County 1/16/2018 Attainment/Unclassifiable

Whatcom County 1/16/2018 Attainment/Unclassifiable

Whitman County 1/16/2018 Attainment/Unclassifiable

Yakima County 1/16/2018 Attainment/Unclassifiable

1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

2 This date is August 3, 2018, unless otherwise noted.

Washington—2008 Lead NAAQS

Designated area Designation for the 2008 NAAQS a

Date 1 Type

Whole State Unclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 December 31, 2011 unless otherwise noted.