Designated area
| Designation
a
| Classification
|
---|
Date
1
| Type
| Date
| Type
|
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Portland—Vancouver AQMA:
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Clark County (part) | | Unclassifiable/Attainment
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Air quality maintenance area
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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;
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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
| | |