81.316—Iowa.
| Iowa—TSP | ||||
| Designated area | Does not meet primary standards | Does not meet secondary standards | Cannot be classified | Better than national standards |
|---|---|---|---|---|
| Central portion of Waterloo | X | |||
| Cedar Falls Township | X | |||
| East Waterloo Township | X | |||
| Remainder of Black Hawk County | X | |||
| Mason City—A portion of Cerro Gordo County contained entirely within sections 27, 28, 29, 32, 33, 34 and 35 of T97N R20W and sections 2, 3, 4 and 5 of T96N R20W | X | |||
| Mason City—two separate portions of Cerro Gordo County contained entirely within sections 13, 24 and 25 of T97N R21W; sections 18, 19, 20, 21, 30, 31 and 35 of T97N R20W; and sections 1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 15, 16 and 17 of T96N R20W | X | |||
| Falls Township | X | |||
| Lake Township | X | |||
| Lincoln Township | X | |||
| Remainder of Cerro Gordo County | X | |||
| An area around downtown Clinton | X | |||
| Comanche Township | X | |||
| Remainder of Clinton County | X | |||
| Burlington Township | X | |||
| Remainder of Des Moines County | X | |||
| Iowa City Township | X | |||
| Remainder of Johnson County | X | |||
| An area in and near Keokuk | X | |||
| Jackson Township | X | |||
| Jefferson Township | X | |||
| Madison Township | X | |||
| Remainder of Lee County | X | |||
| Cedar Rapids—a portion of Linn County contained entirely within T 82 N., R 7 W.; and T 83 N., R 7 W | X | |||
| Bertram Township | X | |||
| Clinton Township | X | |||
| College Township | X | |||
| Fairfax Township | X | |||
| Marion Township | X | |||
| Monroe Township | X | |||
| Putnam Township | X | |||
| Remainder of Linn County | X | |||
| The central portion of Marshalltown | X | |||
| Remainder of Marshall County | X | |||
| The central and southern portions of Muscatine | X | |||
| Fruitland Township | X | |||
| Sweetland Township | X | |||
| Montpelier Township | X | |||
| Remainder of Muscatine County | X | |||
| An area of central Des Moines east of U.S. Highway 65 & 69 (E. 14th Street) | X | |||
| Portions of Polk County contained entirely within T 78 N. R 23 W.; T 78 N. R 24 W.; T 78 N. R 25 W.; T 80 R 24 W.; T 79 N. R 23 W.; T 79 N. R 24 W.; and T 79 R 25 W | X | |||
| Clay Township | X | |||
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| Douglas Township | X | |||
| Jefferson Township | X | |||
| Remainder of Polk County | X | |||
| The western portion of Council Bluffs and Carter Lake | X | |||
| Lake Township | X | |||
| Lewis Township | X | |||
| Remainder of Pottawatomie County | X | |||
| Portions of Buffalo, Davenport, Bettendorf and Riverdale | X | |||
| Remainder of Scott County | X | |||
| Center Township | X | |||
| Remainder of Wapello County | X | |||
| The central portion Ft. Dodge | X | |||
| Otho Township | X | |||
| Remainder of Webster County | X | |||
| The central and southern portions of Sioux City | X | |||
| Liberty Township | X | |||
| Woodbury Township | X | |||
| Remainder of Woodbury County | X | |||
| Remainder of State | X | |||
| 1 EPA designation replaces State designation. | ||||
| Iowa—SO2 | ||||
| Designated area | Does not meet primary standards | Does not meet secondary standards | Cannot be classified | Better than national standards |
|---|---|---|---|---|
| Entire state | X | |||
| Iowa—Carbon Monoxide | ||||
| Designated Area | Designation | Classification | ||
|---|---|---|---|---|
| Date 1 | Type | Date 1 | Type | |
| Statewide | Unclassifiable/Attainment | |||
| Adair County | ||||
| Adams County | ||||
| Allamakee County | ||||
| Appanoose County | ||||
| Audubon County | ||||
| Benton County | ||||
| Black Hawk County | ||||
| Boone County | ||||
| Bremer County | ||||
| Buchanan County | ||||
| Buena Vista County | ||||
| Butler County | ||||
| Calhoun County | ||||
| Carroll County | ||||
| Cass County | ||||
| Cedar County | ||||
| Cerro Gordo County | ||||
| Cherokee County | ||||
| Chickasaw County | ||||
| Clarke County | ||||
| Clay County | ||||
| Clayton County | ||||
| Clinton County | ||||
| Crawford County | ||||
| Dallas County | ||||
| Davis County | ||||
| Decatur County | ||||
| Delaware County | ||||
| Des Moines County | ||||
| Dickinson County | ||||
| Dubuque County | ||||
| Emmet County | ||||
| Fayette County | ||||
| Floyd County | ||||
| Franklin County | ||||
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| Fremont County | ||||
| Greene County | ||||
| Grundy County | ||||
| Guthrie County | ||||
| Hamilton County | ||||
| Hancock County | ||||
| Hardin County | ||||
| Harrison County | ||||
| Henry County | ||||
| Howard County | ||||
| Humboldt County | ||||
| Ida County | ||||
| Iowa County | ||||
| Jackson County | ||||
| Jasper County | ||||
| Jefferson County | ||||
| Johnson County | ||||
| Jones County | ||||
| Keokuk County | ||||
| Kossuth County | ||||
| Lee County | ||||
| Linn County | ||||
| Louisa County | ||||
| Lucas County | ||||
| Lyon County | ||||
| Madison County | ||||
| Mahaska County | ||||
| Marion County | ||||
| Marshall County | ||||
| Mills County | ||||
| Mitchell County | ||||
| Monona County | ||||
| Monroe County | ||||
| Montgomery County | ||||
| Muscatine County | ||||
| O'Brien County | ||||
| Osceola County | ||||
| Page County | ||||
| Palo Alto County | ||||
| Plymouth County | ||||
| Pocahontas County | ||||
| Polk County | ||||
| Pottawattamie County | ||||
| Poweshiek County | ||||
| Ringgold County | ||||
| Sac County | ||||
| Scott County | ||||
| Shelby County | ||||
| Sioux County | ||||
| Story County | ||||
| Tama County | ||||
| Taylor County | ||||
| Union County | ||||
| Van Buren County | ||||
| Wapello County | ||||
| Warren County | ||||
| Washington County | ||||
| Wayne County | ||||
| Webster County | ||||
| Winnebago County | ||||
| Winneshiek County | ||||
| Woodbury County | ||||
| Worth County | ||||
| Wright County | ||||
| 1 This date is November 15, 1990, unless otherwise noted. | ||||
| Iowa—Ozone (1-Hour Standard)2 | ||||
| Designated area | Designation | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date1 | Type | |
| Statewide | Unclassifiable/Attainment | |||
| Adair County | ||||
| Adams County | ||||
| Allamakee County | ||||
| Appanoose County | ||||
| Audubon County | ||||
| Benton County | ||||
| Black Hawk County | ||||
| Boone County | ||||
| Bremer County | ||||
| Buchanan County | ||||
| Buena Vista County | ||||
| Butler County | ||||
| Calhoun County | ||||
| Carroll County | ||||
| Cass County | ||||
| Cedar County | ||||
| Cerro Gordo County | ||||
| Cherokee County | ||||
| Chickasaw County | ||||
| Clarke County | ||||
| Clay County | ||||
| Clayton County | ||||
| Clinton County | ||||
| Crawford County | ||||
| Dallas County | ||||
| Davis County | ||||
| Decatur County | ||||
| Delaware County | ||||
| Des Moines County | ||||
| Dickinson County | ||||
| Dubuque County | ||||
| Emmet County | ||||
| Fayette County | ||||
| Floyd County | ||||
| Franklin County | ||||
| Fremont County | ||||
| Greene County | ||||
| Grundy County | ||||
| Guthrie County | ||||
| Hamilton County | ||||
| Hancock County | ||||
| Hardin County | ||||
| Harrison County | ||||
| Henry County | ||||
| Howard County | ||||
| Humboldt County | ||||
| Ida County | ||||
| Iowa County | ||||
| Jackson County | ||||
| Jasper County | ||||
| Jefferson County | ||||
| Johnson County | ||||
| Jones County | ||||
| Keokuk County | ||||
| Kossuth County | ||||
| Lee County | ||||
| Linn County | ||||
| Louisa County | ||||
| Lucas County | ||||
| Lyon County | ||||
| Madison County | ||||
| Mahaska County | ||||
| Marion County | ||||
| Marshall County | ||||
| Mills County | ||||
| Mitchell County | ||||
| Monona County | ||||
| Monroe County | ||||
| Montgomery County | ||||
| Muscatine County | ||||
| O'Brien County | ||||
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| Osceola County | ||||
| Page County | ||||
| Palo Alto County | ||||
| Plymouth County | ||||
| Pocahontas County | ||||
| Polk County | ||||
| Pottawattamie County | ||||
| Poweshiek County | ||||
| Ringgold County | ||||
| Sac County | ||||
| Scott County | ||||
| Shelby County | ||||
| Sioux County | ||||
| Story County | ||||
| Tama County | ||||
| Taylor County | ||||
| Union County | ||||
| Van Buren County | ||||
| Wapello County | ||||
| Warren County | ||||
| Washington County | ||||
| Wayne County | ||||
| Webster County | ||||
| Winnebago County | ||||
| Winneshiek County | ||||
| Woodbury County | ||||
| Worth County | ||||
| Wright 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 Iowa. | ||||
| Iowa—NO2 | ||
| Designated area | Does not meet primary standards | Cannot be classified or better than national standards |
|---|---|---|
| Entire State | X | |
| Iowa—Ozone (8-Hour Standard) | ||||
| Designated area | Designation a | Category/classification | ||
|---|---|---|---|---|
| Date 1 | Type | Date 1 | Type | |
| Statewide | Unclassifiable/Attainment | |||
| Adair County | ||||
| Adams County | ||||
| Allamakee County | ||||
| Appanoose County | ||||
| Audubon County | ||||
| Benton County | ||||
| Black Hawk County | ||||
| Boone County | ||||
| Bremer County | ||||
| Buchanan County | ||||
| Buena Vista County | ||||
| Butler County | ||||
| Calhoun County | ||||
| Carroll County | ||||
| Cass County | ||||
| Cedar County | ||||
| Cerro Gordo County | ||||
| Cherokee County | ||||
| Chickasaw County | ||||
| Clarke County | ||||
| Clay County | ||||
| Clayton County | ||||
| Clinton County | ||||
| Crawford County | ||||
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| Dallas County | ||||
| Davis County | ||||
| Decatur County | ||||
| Delaware County | ||||
| Des Moines County | ||||
| Dickinson County | ||||
| Dubuque County | ||||
| Emmet County | ||||
| Fayette County | ||||
| Floyd County | ||||
| Franklin County | ||||
| Fremont County | ||||
| Greene County | ||||
| Grundy County | ||||
| Guthrie County | ||||
| Hamilton County | ||||
| Hancock County | ||||
| Hardin County | ||||
| Harrison County | ||||
| Henry County | ||||
| Howard County | ||||
| Humboldt County | ||||
| Ida County | ||||
| Iowa County | ||||
| Jackson County | ||||
| Jasper County | ||||
| Jefferson County | ||||
| Johnson County | ||||
| Jones County | ||||
| Keokuk County | ||||
| Kossuth County | ||||
| Lee County | ||||
| Linn County | ||||
| Louisa County | ||||
| Lucas County | ||||
| Lyon County | ||||
| Madison County | ||||
| Mahaska County | ||||
| Marion County | ||||
| Marshall County | ||||
| Mills County | ||||
| Mitchell County | ||||
| Monona County | ||||
| Monroe County | ||||
| Montgomery County | ||||
| Muscatine County | ||||
| O'Brien County | ||||
| Osceola County | ||||
| Page County | ||||
| Palo Alto County | ||||
| Plymouth County | ||||
| Pocahontas County | ||||
| Polk County | ||||
| Pottawattamie County | ||||
| Poweshiek County | ||||
| Ringgold County | ||||
| Sac County | ||||
| Scott County | ||||
| Shelby County | ||||
| Sioux County | ||||
| Story County | ||||
| Tama County | ||||
| Taylor County | ||||
| Union County | ||||
| Van Buren County | ||||
| Wapello County | ||||
| Warren County | ||||
| Washington County | ||||
| Wayne County | ||||
| Webster County | ||||
| Winnebago County | ||||
|
Code of Federal Regulations
245
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| Winneshiek County | ||||
| Woodbury County | ||||
| Worth County | ||||
| Wright 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. | ||||
| Iowa—PM2.5 (Annual NAAQS) | ||
| Designated area | Designation a | |
|---|---|---|
| Date 1 | Type | |
| Statewide: | ||
| Adair County | Unclassifiable/Attainment. | |
| Adams County | Unclassifiable/Attainment. | |
| Allamakee County | Unclassifiable/Attainment. | |
| Appanoose County | Unclassifiable/Attainment. | |
| Audubon County | Unclassifiable/Attainment. | |
| Benton County | Unclassifiable/Attainment. | |
| Black Hawk County | Unclassifiable/Attainment. | |
| Boone County | Unclassifiable/Attainment. | |
| Bremer County | Unclassifiable/Attainment. | |
| Buchanan County | Unclassifiable/Attainment. | |
| Buena Vista County | Unclassifiable/Attainment. | |
| Butler County | Unclassifiable/Attainment. | |
| Calhoun County | Unclassifiable/Attainment. | |
| Carroll County | Unclassifiable/Attainment. | |
| Cass County | Unclassifiable/Attainment. | |
| Cedar County | Unclassifiable/Attainment. | |
| Cerro Gordo County | Unclassifiable/Attainment. | |
| Cherokee County | Unclassifiable/Attainment. | |
| Chickasaw County | Unclassifiable/Attainment. | |
| Clarke County | Unclassifiable/Attainment. | |
| Clay County | Unclassifiable/Attainment. | |
| Clayton County | Unclassifiable/Attainment. | |
| Clinton County | Unclassifiable/Attainment. | |
| Crawford County | Unclassifiable/Attainment. | |
| Dallas County | Unclassifiable/Attainment. | |
| Davis County | Unclassifiable/Attainment. | |
| Decatur County | Unclassifiable/Attainment. | |
| Delaware County | Unclassifiable/Attainment. | |
| Des Moines County | Unclassifiable/Attainment. | |
| Dickinson County | Unclassifiable/Attainment. | |
| Dubuque County | Unclassifiable/Attainment. | |
| Emmet County | Unclassifiable/Attainment. | |
| Fayette County | Unclassifiable/Attainment. | |
| Floyd County | Unclassifiable/Attainment. | |
| Franklin County | Unclassifiable/Attainment. | |
| Fremont County | Unclassifiable/Attainment. | |
| Greene County | Unclassifiable/Attainment. | |
| Grundy County | Unclassifiable/Attainment. | |
| Guthrie County | Unclassifiable/Attainment. | |
| Hamilton County | Unclassifiable/Attainment. | |
| Hancock County | Unclassifiable/Attainment. | |
| Hardin County | Unclassifiable/Attainment. | |
| Harrison County | Unclassifiable/Attainment. | |
| Henry County | Unclassifiable/Attainment. | |
| Howard County | Unclassifiable/Attainment. | |
| Humboldt County | Unclassifiable/Attainment. | |
| Ida County | Unclassifiable/Attainment. | |
| Iowa County | Unclassifiable/Attainment. | |
| Jackson County | Unclassifiable/Attainment. | |
| Jasper County | Unclassifiable/Attainment. | |
| Jefferson County | Unclassifiable/Attainment. | |
| Johnson County | Unclassifiable/Attainment. | |
| Jones County | Unclassifiable/Attainment. | |
| Keokuk County | Unclassifiable/Attainment. | |
| Kossuth County | Unclassifiable/Attainment. | |
| Lee County | Unclassifiable/Attainment. | |
| Linn County | Unclassifiable/Attainment. | |
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Code of Federal Regulations
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