81.338—Oregon.

Oregon—SO2
Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards
Central Oregon Intrastate AQCR 190 X
Eastern Oregon Intrastate AQCR 191 X
Northwest Oregon Intrastate AQCR 192 X
Portland Interstate AQCR 193 (Oregon Portion) X
Southwest Oregon Intrastate AQCR 194 X
Oregon—Carbon Monoxide
Designated Area Designation Classification
Date 1 Type Date 1 Type
Eugene-Springfield Area
Lane County (part) 1/5/94 Attainment 1/5/94
The Eugene-Springfield Area is described as: The area within the bounds beginning at the Northwest corner of T17S, R4W; extending South to the Southwest corner of Section 6, T17S, R4W; thence East to the Northwest corner of Section 8, T17S, R4W; thence South to the Southwest corner of Section 32, T17S, R4W; thence East to the Northeast corner of Section 4, T18S, R4W; thence South to the Southwest corner of Section 3, T18S, R4W; thence East to the Northwest corner Section 12, T18S, R4W; thence South to the Southwest corner of Section 13, T18S, R4W; thence East to the Northeast corner of Section 24, T18S, R4W; thence South to the Southeast corner of Section 24, T18S, R4W; thence East to the Northeast corner of Section 21, T18S, R3W; thence North to the Northeast corner of Section 21, T18S, R3W; thence East to the Northeast corner of Section 22, T18S, R3W; thence South to the Southwest corner of Section 23, T18S, R3W; thence East to the Southeast corner of Section 24, T18S, R3W; thence North to the Southeast corner of Section 1, T18S, R3W; thence East to the Southeast corner of Section 2, T18S, R2W; thence North to the Northeast corner of Section 26, T17S, R2W; thence West to the Southwest corner of Section 20, T17S, R2W; thence North to the Northwest corner of Section 20, T17S, R2W; thence West to the Southwest corner of Section 13, T17S, R3W; thence North to the Northwest corner of Section 13, T17S, R3W; thence West to the Southwest corner of Section 11, T17S, R3W; thence North to the Northwest corner of Section 11, T17S, R3W; thence West to the Southwest corner of Section 6, T17S, R3W; thence North to the Northwest corner of Section 31, T16S, R3W; thence West to the Northwest corner of Section 34, T16S, R4W; thence South to the Southwest corner of Section 34, T16S, R4W; thence West to the point of beginning
Grants Pass Area:
Josephine County (part) Central Business District 10/30/00 Attainment
Klamath Falls Area
Klamath County (part) 11/9/01 Attainment
Urban Growth Boundary
Code of Federal Regulations 429
Medford Area
Jackson County (part) 9/23/02 Attainment
Medford Urban Growth Boundary
Portland Area
Portland Metro Service District Boundary
Clackamas County (part) Attainment
Multnomah County (part) Attainment
Washington County (part) Attainment
Salem Area:
Salem Area Transportation Study
Marion County (part) 3/2/09
Polk County (part) 3/2/09
AQCR 190 Remainder of Central Oregon Intrastate Unclassifiable/Attainment
Crook County
Deschutes County
Hood River County
Jefferson County
Klamath County (part)
area outside Urban Growth Boundary
Lake County
Sherman County
Wasco County
AQCR 191 Eastern Oregon Intrastate Unclassifiable/Attainment
Baker County
Gilliam County
Grant County
Harney County
Malheur County
Morrow County
Umatilla County
Union County
Wallowa County
Wheeler County
AQCR 192 Northwest Oregon Intrastate Unclassifiable/Attainment
Clatsop County
Lincoln County
Tillamook County
AQCR 193 Remainder of Portland Interstate Unclassifiable/Attainment
Benton County
Clackamas County (part)
area outside Portland Metro Service District Boundary
Columbia County
Lane County (part)
area outside of Air Quality Maintenance area
Linn County
Marion County (part)
area outside the city of Salem
Multnomah County (part)
area outside Portand Metro Service District Boundary
Polk County (part)
area outside of Salem
Washington County (part)
area outside Portland Metro Service District Boundary
Yamhill County
AQCR 194 Remainder of Southwest Oregon Unclassifiable/Attainment
Coos County
Curry County
Douglas County
Jackson County (part)
area outside Medford Urban growth boundary
Josephine County (part)
area outside of Central Business District
1 This date is November 15, 1990, unless otherwise noted.
Oregon—Ozone (1-Hour Standard)3
Designated area Designation Classification
Date 1 Type Date 1 Type
Portland-Vancouver AQMA Area: Attainment
Air Quality Maintenance Area
Clackamas County (part)
Multnomah County (part)
Washington County (part)
Salem Area:
Salem Area Transportation Study
Marion County (part) (2) Nonattainment (2) Incomplete Data.
Polk County (2) Nonattainment (2) Incomplete Data.
AQCR 190 Central Oregon Intrastate (Remainder of) Unclassifiable/Attainment
Crook County
Deschutes County
Hood River County
Jefferson County
Klamath County
Lake County
Sherman County
Wasco County
AQCR 191 Eastern Oregon Intrastate Unclassifiable/Attainment
Baker County
Gilliam County
Grant County
Harney County
Malheur County
Morrow County
Umatilla County
Union County
Wallowa County
Wheeler County
AQCR 192 Northwest Oregon Intrastate Unclassifiable/Attainment
Clatsop County
Lincoln County
Tillamook County
AQCR 193 Portland Interstate (part) Unclassifiable/Attainment
Lane County (part) Eugene Springfield Air Quality Maintenance Area
AQCR 193 Portland Interstate (Remainder of) Unclassifiable/Attainment
Benton County
Clackamas County (part) Remainder of county
Columbia County
Lane County (part) Remainder of county
Linn County
Marion County (part) area outside the Salem Area Transportation Study
Multnomah County (part) Remainder of county
Polk County (part) area outside the Salem Area Transportation Study
Washington County (part) Remainder of county
Yamhill County
AQCR 194 Southwest Oregon Intrastate (part)
Jackson County (part)
Medford-Ashland Air Quality Maintenance Area Unclassifiable/Attainment
AQCR 194 Southwest Oregon Intrastate (Remainder of) Unclassifiable/Attainment
Coos County
Curry County
Douglas County
Jackson County (part) Remainder of county
Josephine County
1 This date is October 18, 2000, unless otherwise noted.
2 This date is January 16, 2001.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Oregon. Portland-Vancouver AQMA is a maintenance area for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Oregon—PM-10
Designated Area Designation Classification
Date Type Date Type
Central Oregon Intrastate AQCR 190:
Lakeview (the Urban Growth Boundary area) 7/19/06 Attainment
Klamath Falls (the Urban Growth Boundary area) 12/22/03 Attainment
Remainder of AQCR 190 11/15/90 Unclassifiable
Eastern Oregon Intrastate AQCR 191:
La Grande (the Urban Growth Boundary area) 7/19/06 Attainment
Remainder of AQCR 191 11/15/90 Unclassifiable
Northwest Oregon Intrastate AQCR 192 11/15/90 Unclassifiable
Portland Interstate AQCR 193 (Oregon Portion):
Portland-Vancouver (portion of the Air Quality Maintenance Area) 11/15/90 Unclassifiable
Eugene/Springfield (the Urban Growth Boundary area) 11/15/90 Nonattainment 11/15/90 Moderate.
Oakridge (the Urban Growth Boundary area) 1/20/94 Nonattainment 1/20/94 Moderate.
Remainder of AQCR 193 (Oregon Portion) 11/15/90 Unclassifiable
Southwest Oregon Intrastate AQCR 194:
Medford Air Quality Maintenance Area (including White City) 8/18/06 Attainment
Grants Pass (the Urban Growth Boundary area) 12/26/03 Attainment
Remainder of AQCR 194 11/15/90 Unclassifiable
Oregon—NO2
Designated area Does not meet primary standards Cannot be classified or better than national standards
Central Oregon Intrastate AQCR 190 X
Eastern Oregon Intrastate AQCR 191 X
Northwest Oregon Intrastate AQCR 192 X
Portland Interstate AQCR 193 (Oregon Portion) X
Southwest Oregon Intrastate AQCR 194 X
Oregon—Ozone (8-Hour Standard)
Designated area Designation area a Category/classification
Date 1 Type Date 1 Type
Portland-Vancouver AQMA: (Air Quality Maintenance Area) Unclassifiable/Attainment
Clackamas County (part)
Multnomah County (part)
Washington County (part)
Salem Area: (Salem Area Transportation Study)
Marion County (part) Unclassifiable/Attainment
Polk County Unclassifiable/Attainment
AQCR 190Central Oregon Intrastate (remainder of) Unclassifiable/Attainment
Crook County
Deschutes County
Hood River County
Jefferson County
Klamath County
Lake County
Sherman County
Wasco County
AQCR 191Eastern Oregon Intrastate Unclassifiable/Attainment
Baker County
Gilliam County
Grant County
Harney County
Malheur County
Morrow County
Umatilla County
Union County
Wallowa County
Wheeler County
AQCR 192Northwest Oregon Intrastate Unclassifiable/Attainment
Clatsop County
Code of Federal Regulations 432
Lincoln County
Tillamook County
AQCR 193Portland Interstate (part) Unclassifiable/Attainment
Lane County (part) Eugene Springfield Air Quality Maintenance Area
AQCR 193Portland Interstate (remainder of) Unclassifiable/Attainment
Benton County
Clackamas County (part) remainder
Columbia County
Lane County (part) remainder
Linn County
Marion County (part) The area outside the Salem Area Transportation Study
Multnomah County (part) remainder
Polk County (part) The area outside the Salem Area Transportation Study
Washington County (part) remainder
Yamhill County
AQCR 194Southwest Oregon Intrastate (part)
Jackson County (part) Medford-Ashland Air Quality Maintenance Area Unclassifiable/Attainment
AQCR 194Southwest Oregon Intrastate (remainder of) Unclassifiable/Attainment
Coos County
Curry County
Douglas County
Jackson County (part) remainder
Josephine 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.
Oregon—PM2.5 (Annual NAAQS)
Designated area Designation a
Date 1 Type
Portland-Vancouver AQMA:
(Air Quality Maintenance Area)
Clackamas County (part) Unclassifiable/Attainment.
Multnomah County (part) Unclassifiable/Attainment.
Washington County (part) Unclassifiable/Attainment.
Salem Area:
(Salem Area Transportation Study):
Marion County (part) Unclassifiable/Attainment.
Polk County Unclassifiable/Attainment.
AQCR 190 Central Oregon Intrastate (remainder of):
Crook County Unclassifiable/Attainment.
Deschutes County Unclassifiable/Attainment.
Hood River County Unclassifiable/Attainment.
Jefferson County Unclassifiable/Attainment.
Klamath County Unclassifiable/Attainment.
Lake County Unclassifiable/Attainment.
Sherman County Unclassifiable/Attainment.
Wasco County Unclassifiable/Attainment.
AQCR 191 Eastern Oregon Intrastate:
Baker County Unclassifiable/Attainment.
Gilliam County Unclassifiable/Attainment.
Grant County Unclassifiable/Attainment.
Harney County Unclassifiable/Attainment.
Malheur County Unclassifiable/Attainment.
Morrow County Unclassifiable/Attainment.
Umatilla County Unclassifiable/Attainment.
Union County Unclassifiable/Attainment.
Wallowa County Unclassifiable/Attainment.
Wheeler County Unclassifiable/Attainment.
AQCR 192 Northwest Oregon Intrastate:
Clatsop County Unclassifiable/Attainment.
Lincoln County Unclassifiable/Attainment.
Tillamook County Unclassifiable/Attainment.
AQCR 193 Portland Interstate (part):
Code of Federal Regulations 433
Lane County (part) Unclassifiable/Attainment.
Eugene Springfield Air Quality Maintenance Area
AQCR 193 Portland Interstate (remainder of):
Benton County Unclassifiable/Attainment.
Clackamas County (remainder) Unclassifiable/Attainment.
Columbia County Unclassifiable/Attainment.
Lane County (remainder) Unclassifiable/Attainment.
Linn County Unclassifiable/Attainment.
Marion County (part) Unclassifiable/Attainment.
The area outside the Salem Area Transportation Study
Multnomah County (remainder) Unclassifiable/Attainment.
Polk County (part) Unclassifiable/Attainment.
The area outside the Salem Area Transportation Study
Washington County (remainder) Unclassifiable/Attainment.
Yamhill County Unclassifiable/Attainment.
AQCR 194 Southwest Oregon Intrastate (part):
Jackson County (part) Unclassifiable/Attainment.
Medford-Ashland Air Quality Maintenance Area
AQCR 194 Southwest Oregon Intrastate (remainder of):
Coos County Unclassifiable/Attainment.
Curry County Unclassifiable/Attainment.
Douglas County Unclassifiable/Attainment.
Jackson County (remainder) Unclassifiable/Attainment.
Josephine 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.




Oregon—PM2.5 [24-hour NAAQS]
Designated area Designation for the 1997 NAAQS a Designation for the 2006 NAAQS a
Date 1 Type Date 2 Type
Klamath Falls, OR:
Klamath County (part) Unclassifiable/Attainment Nonattainment.
Townships and ranges defined by T37S R9E Sections 31-32. T38S R8E Sections 1-5, 8-16, 22-26, 35-36. T38S R9E Sections 5-8, 14-15, 17-36. T39S R8E Sections 1-2, 11-13, 24. T39S R9E Sections 1-27. T39S R10E Sections 3-10, 15-20, 29-30.
Oakridge, OR:
Lane County (part) Unclassifiable/Attainment Nonattainment.
Boundary is defined as a line from Township 21 South, Range 2 East, Section 11 (northwest corner) east to Township 21 South, Range 3 East, Section 11 (northeast corner), south to Township 21 South, Range 3 East, Section 23 (southeast corner), west to Township 21 South, Range 2 East, Section 23 (southwest corner) connecting back to Township 21 South, Range 2 East, Section 11 (northwest corner).
Rest of State:
Portland-Vancouver AQMA: (Air Quality Maintenance Area)
Code of Federal Regulations 434
Clackamas County (part) Unclassifiable/Attainment Unclassifiable/Attainment.
Multnomah County (part) Unclassifiable/Attainment Unclassifiable/Attainment.
Washington County (part) Unclassifiable/Attainment Unclassifiable/Attainment.
Salem Area: (Salem Area Transportation Study):
Marion County (part) Unclassifiable/Attainment Unclassifiable/Attainment.
Polk County Unclassifiable/Attainment Unclassifiable/Attainment.
AQCR 190Central Oregon Intrastate:
Crook County Unclassifiable/Attainment Unclassifiable/Attainment.
Deschutes County Unclassifiable/Attainment Unclassifiable/Attainment.
Hood River County Unclassifiable/Attainment Unclassifiable/Attainment.
Jefferson County Unclassifiable/Attainment Unclassifiable/Attainment.
Klamath County (remainder) Unclassifiable/Attainment Unclassifiable/Attainment.
Lake County Unclassifiable/Attainment Unclassifiable/Attainment.
Sherman County Unclassifiable/Attainment Unclassifiable/Attainment.
Wasco County Unclassifiable/Attainment Unclassifiable/Attainment.
AQCR 191Eastern Oregon Intrastate:
Baker County Unclassifiable/Attainment Unclassifiable/Attainment.
Gilliam County Unclassifiable/Attainment Unclassifiable/Attainment.
Grant County Unclassifiable/Attainment Unclassifiable/Attainment.
Harney County Unclassifiable/Attainment Unclassifiable/Attainment.
Malheur County Unclassifiable/Attainment Unclassifiable/Attainment.
Morrow County Unclassifiable/Attainment Unclassifiable/Attainment.
Umatilla County Unclassifiable/Attainment Unclassifiable/Attainment.
Union County Unclassifiable/Attainment Unclassifiable/Attainment.
Wallowa County Unclassifiable/Attainment Unclassifiable/Attainment.
Wheeler County Unclassifiable/Attainment Unclassifiable/Attainment.
AQCR 192Northwest Oregon Intrastate:
Clatsop County Unclassifiable/Attainment Unclassifiable/Attainment.
Lincoln County Unclassifiable/Attainment Unclassifiable/Attainment.
Tillamook County Unclassifiable/Attainment Unclassifiable/Attainment.
AQCR 193Portland Interstate (part):
Lane County (part) Unclassifiable/Attainment Unclassifiable/Attainment.
Eugene Springfield Air Quality Maintenance AQCR 193Portland Interstate:
Benton County Unclassifiable/Attainment Unclassifiable/Attainment.
Clackamas County (remainder) Unclassifiable/Attainment Unclassifiable/Attainment.
Columbia County Unclassifiable/Attainment Unclassifiable/Attainment.
Lane County (remainder) Unclassifiable/Attainment Unclassifiable/Attainment.
Code of Federal Regulations 435
Linn County Unclassifiable/Attainment Unclassifiable/Attainment.
Marion County (part) Unclassifiable/Attainment Unclassifiable/Attainment.
The area outside the Salem Area Transportation Study
Multnomah County (remainder)