View all text of Subpart C [§ 81.300 - § 81.356]
§ 81.338 - Oregon.
Oregon—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 | 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 |
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Oregon—2010 Sulfur Dioxide NAAQS
[Primary]
| Designated area 1 | Designation | Date 2 | Type | Entire State | Attainment/Unclassifiable. |
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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.
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 | 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 |
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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 |
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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) | 6/10/13 | Attainment | Oakridge (the Urban Growth Boundary area) | 8/22/2022 | Attainment | 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 |
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Oregon—1997 Annual PM
[Primary and Secondary]
| Designated area | Designation a | Classification | Date 1 | Type | Date | 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): | 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. |
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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—2012 Annual PM
[Primary]
| Designated area 1 | Designation | Classification | Date 2 | Type | Date 2 | Type | AQCR 190 Central Oregon Intrastate | 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 (Oregon Portion) | Benton County | Unclassifiable/Attainment | Clackamas County | Unclassifiable/Attainment | Columbia County | Unclassifiable/Attainment | Lane County | Unclassifiable/Attainment | Linn County | Unclassifiable/Attainment | Marion County | Unclassifiable/Attainment | Multnomah County | Unclassifiable/Attainment | Polk County | Unclassifiable/Attainment | Washington County | Unclassifiable/Attainment | Yamhill County | Unclassifiable/Attainment | AQCR 194 Southwest Oregon Intrastate | Coos County | Unclassifiable/Attainment | Curry County | Unclassifiable/Attainment | Douglas County | Unclassifiable/Attainment | Jackson County | Unclassifiable/Attainment | Josephine County | Unclassifiable/Attainment |
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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.
Oregon—1997 24-Hour PM
[Primary and Secondary]
| Designated area | Designation a | Classification | Date 1 | Type | Date | Type | Klamath Falls, OR: | Klamath County (part) | Unclassifiable/Attainment. | 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. | 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) | 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: | Crook County | Unclassifiable/Attainment. | Deschutes County | Unclassifiable/Attainment. | Hood River County | Unclassifiable/Attainment. | Jefferson County | Unclassifiable/Attainment. | Klamath County (remainder) | 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): | Lane County (part) | Unclassifiable/Attainment. | Eugene Springfield Air Quality Maintenance AQCR 193 Portland Interstate: | 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. |
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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—2006 24-Hour PM
[Primary and Secondary]
| Designated area | Designation a | Classification | Date 1 | Type | Date 2 | Type | Klamath Falls, OR: | Klamath County (part) | Nonattainment | Moderate. | 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) | 8/22/2022 | Attainment | 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) | 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: | Crook County | Unclassifiable/Attainment. | Deschutes County | Unclassifiable/Attainment. | Hood River County | Unclassifiable/Attainment. | Jefferson County | Unclassifiable/Attainment. | Klamath County (remainder) | 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): | Lane County (part) | Unclassifiable/Attainment. | Eugene Springfield Air Quality Maintenance AQCR 193 Portland Interstate: | 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. |
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a Includes Indian Country located in each county or area, except as otherwise specified.
1 his date is 30 days after November 13, 2009, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Oregon—NO
| 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 |
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Oregon—NO
[2010 1-Hour standard]
| Designated area | Designation a | Date 1 | Type | Statewide | Unclassifiable/Attainment. |
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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.
Oregon—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
| 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 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 | 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 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 | Josephine County |
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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—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
| Designated area | Designation | Classification | Date 1 | Type | Date 1 | Type | Statewide and Any Areas of Indian Country | Unclassifiable/Attainment |
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1 This date is July 20, 2012, unless otherwise noted.
Oregon—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
| Designated area 1 | Designation | Classification | Date 2 | Type | Date 2 | Type | Baker County | 1/16/18 | Attainment/Unclassifiable | Benton County | Attainment/Unclassifiable | Clackamas County | Attainment/Unclassifiable | Clatsop County | 1/16/18 | Attainment/Unclassifiable | Columbia County | Attainment/Unclassifiable | Coos County | 1/16/18 | Attainment/Unclassifiable | Crook County | 1/16/18 | Attainment/Unclassifiable | Curry County | 1/16/18 | Attainment/Unclassifiable | Deschutes County | 1/16/18 | Attainment/Unclassifiable | Douglas County | 1/16/18 | Attainment/Unclassifiable | Gilliam County | 1/16/18 | Attainment/Unclassifiable | Grant County | 1/16/18 | Attainment/Unclassifiable | Harney County | 1/16/18 | Attainment/Unclassifiable | Hood River County | 1/16/18 | Attainment/Unclassifiable | Jackson County | 1/16/18 | Attainment/Unclassifiable | Jefferson County | 1/16/18 | Attainment/Unclassifiable | Josephine County | 1/16/18 | Attainment/Unclassifiable | Klamath County | 1/16/18 | Attainment/Unclassifiable | Lake County | 1/16/18 | Attainment/Unclassifiable | Lane County | 1/16/18 | Attainment/Unclassifiable | Lincoln County | 1/16/18 | Attainment/Unclassifiable | Linn County | Attainment/Unclassifiable | Malheur County | 1/16/18 | Attainment/Unclassifiable | Marion County | Attainment/Unclassifiable | Morrow County | 1/16/18 | Attainment/Unclassifiable | Multnomah County | Attainment/Unclassifiable | Polk County | Attainment/Unclassifiable | Sherman County | 1/16/18 | Attainment/Unclassifiable | Tillamook County | 1/16/18 | Attainment/Unclassifiable | Umatilla County | 1/16/18 | Attainment/Unclassifiable | Union County | 1/16/18 | Attainment/Unclassifiable | Wallowa County | 1/16/18 | Attainment/Unclassifiable | Wasco County | 1/16/18 | Attainment/Unclassifiable | Washington County | Attainment/Unclassifiable | Wheeler County | 1/16/18 | Attainment/Unclassifiable | Yamhill County | Attainment/Unclassifiable |
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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.
Oregon—2008 Lead NAAQS
| Designated area | Designation for the 2008 NAAQS a | Date 1 | Type | Whole State | Unclassifiable/Attainment. |
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a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.