Missouri.

Missouri—TSP Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards St. Louis AQCR (070): St. Louis (an area extending west about 2 miles from the Mississippi River, north to near I-270 and south to about 1 mile beyond the city limits X Remainder of the city of St. Louis X Remainder of AQCR X Kansas City AQCR (094): Kansas City (an area extending approximately from the Kansas state line east along Red Bridge Road and 115th Street to Missouri Highway 291, then north to I-70, east to Missouri Highway 7, north to U.S. Highway 24 west to Missouri Highway 291, north to Missouri Highway 152, west to Missouri Highway 9, south to U.S. Highway FF, and due south to the state line) X St. Joseph: Within city limits X Remainder of AQCR X Northern AQCR (137): Mexico (township 51 north, range 9 west) X Remainder of AQCR X Southeastern AQCR (138) X Remainder of AQCR X Southwestern AQCR (139) X 1 EPA designation replaces State designation. Missouri—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 Northern AQCR (137): Pike County X Ralls County X Remainder of AQCR X Remainder of State X Missouri—2010 Sulfur Dioxide NAAQS [Primary] Designated area 1 Designation Date 2 Type Jackson County, MO 3/2/2022 Attainment. Jackson County (part). The portion of Jackson County bounded by I-70/I-670 and the Missouri River to the north; and, to the west of I-435 to the state line separating Missouri and Kansas Jefferson County, MO 2/28/2022 Attainment. Jefferson County (part) That portion within Jefferson County described by connecting the following four sets of UTM coordinates moving in a clockwise manner: (Herculaneum USGS Quadrangle), 718360.283, 4250477.056, 729301.869, 4250718.415, 729704.134, 4236840.30, 718762.547, 4236558.715 (Festus USGS Quadrangle), 718762.547, 4236558.715, 729704.134, 4236840.30, 730066.171, 4223042.637, 719124.585, 4222680.6 (Selma USGS Quadrangle), 729704.134, 4236840.30, 730428.209, 4236840.3, 741047.984, 4223283.996, 730066.171, 4223042.637 (Valmeyer USGS Quadrangle), 729301.869, 4250718.415, 731474.096, 4250798.868, 730428.209, 4236840.3, 729704.134, 4236840.30 New Madrid County, MO 4/30/2021 Nonattainment. New Madrid County (part). Area bounded by: East: Missouri/Kentucky and Missouri/Tennessee State lines. North: County Highway 406 East to Levee Road, following Levee Road North to County Highway 406, then extending directly East to the Missouri/Kentucky State line. West: County Highway 403 South: County Highway 408 East to the intersection with County Highway 431, then extending directly East to the Missouri/Tennessee State line. Franklin-St. Charles Counties, MO 9/12/2016 Unclassifiable. Franklin County (part) The eastern and western boundaries are Boles Township boundaries. The northern boundary is the Franklin County-St. Charles County Line. The southern boundary is Interstate 44. St. Charles County (part) The eastern and western boundaries are Boone Township boundaries. The northern boundary is Missouri Route D and Highway 94. The southern boundary is the Franklin County-St. Charles County Line. Jackson County, MO 9/12/2016 Unclassifiable. Jackson County (part) The northern boundary is the county line separating Jackson County from Clay and Ray Counties. The eastern boundary is the county line separating Jackson County from Lafayette County. The southern boundary is Interstates 70 and 470. The western boundary is Missouri Highway 291. Adair County Attainment/Unclassifiable. Andrew County Attainment/Unclassifiable. Atchison County Attainment/Unclassifiable. Audrain County Attainment/Unclassifiable. Barry County Attainment/Unclassifiable. Barton County Attainment/Unclassifiable. Bates County Attainment/Unclassifiable. Benton County Attainment/Unclassifiable. Bollinger County Attainment/Unclassifiable. Boone County Attainment/Unclassifiable. Buchanan County Attainment/Unclassifiable. Butler County Attainment/Unclassifiable. Caldwell County Attainment/Unclassifiable. Callaway County Attainment/Unclassifiable. Camden County Attainment/Unclassifiable. Cape Girardeau County Attainment/Unclassifiable. Carroll County Attainment/Unclassifiable. Carter County Attainment/Unclassifiable. Cass County Attainment/Unclassifiable. Cedar County Attainment/Unclassifiable. Chariton County Attainment/Unclassifiable. Christian County Attainment/Unclassifiable. Clark County Attainment/Unclassifiable. Clay County Attainment/Unclassifiable. Clinton County Attainment/Unclassifiable. Cole County Attainment/Unclassifiable. Cooper County Attainment/Unclassifiable. Crawford County Attainment/Unclassifiable. Dade County Attainment/Unclassifiable. Dallas County Attainment/Unclassifiable. Daviess County Attainment/Unclassifiable. DeKalb County Attainment/Unclassifiable. Dent County Attainment/Unclassifiable. Douglas County Attainment/Unclassifiable. Dunklin County Attainment/Unclassifiable. Franklin County (part) (remainder) Attainment/Unclassifiable. Gasconade County Attainment/Unclassifiable. Gentry County Attainment/Unclassifiable. Greene County Attainment/Unclassifiable. Grundy County Attainment/Unclassifiable. Harrison County Attainment/Unclassifiable. Henry County Attainment/Unclassifiable. Hickory County Attainment/Unclassifiable. Holt County Attainment/Unclassifiable. Howard County Attainment/Unclassifiable. Howell County Attainment/Unclassifiable. Iron County 4/30/2021 Attainment/Unclassifiable. Jackson County (part) (remainder) Attainment/Unclassifiable. Jasper County Attainment/Unclassifiable. Jefferson County (part) (remainder) Attainment/Unclassifiable. Johnson County Attainment/Unclassifiable. Knox County Attainment/Unclassifiable. Laclede County Attainment/Unclassifiable. Lafayette County Attainment/Unclassifiable. Lawrence County Attainment/Unclassifiable. Lewis County Attainment/Unclassifiable. Lincoln County Attainment/Unclassifiable. Linn County Attainment/Unclassifiable. Livingston County Attainment/Unclassifiable. Macon County Attainment/Unclassifiable. Madison County Attainment/Unclassifiable. Maries County Attainment/Unclassifiable. Marion County Attainment/Unclassifiable. McDonald County Attainment/Unclassifiable. Mercer County Attainment/Unclassifiable. Miller County Attainment/Unclassifiable. Mississippi County Attainment/Unclassifiable. Moniteau County Attainment/Unclassifiable. Monroe County Attainment/Unclassifiable. Montgomery County Attainment/Unclassifiable. Morgan County Attainment/Unclassifiable. New Madrid County (remainder) 4/30/2021 Attainment/Unclassifiable. Newton County Attainment/Unclassifiable. Nodaway County Attainment/Unclassifiable. Oregon County Attainment/Unclassifiable. Osage County Attainment/Unclassifiable. Ozark County Attainment/Unclassifiable. Pemiscot County Attainment/Unclassifiable. Perry County Attainment/Unclassifiable. Pettis County Attainment/Unclassifiable. Phelps County Attainment/Unclassifiable. Pike County Attainment/Unclassifiable. Platte County Attainment/Unclassifiable. Polk County Attainment/Unclassifiable. Pulaski County Attainment/Unclassifiable. Putnam County Attainment/Unclassifiable. Ralls County Attainment/Unclassifiable. Randolph County Attainment/Unclassifiable. Ray County Attainment/Unclassifiable. Reynolds County Attainment/Unclassifiable. Ripley County Attainment/Unclassifiable. St. Charles County (part) (remainder) Attainment/Unclassifiable. St. Clair County Attainment/Unclassifiable. St. Francois County Attainment/Unclassifiable. Ste. Genevieve County Attainment/Unclassifiable. St. Louis City Attainment/Unclassifiable. St. Louis County Attainment/Unclassifiable. Saline County Attainment/Unclassifiable. Schuyler County Attainment/Unclassifiable. Scotland County Attainment/Unclassifiable. Scott County 9/12/2016 Attainment/Unclassifiable. Shannon County Attainment/Unclassifiable. Shelby County Attainment/Unclassifiable. Stoddard County Attainment/Unclassifiable. Stone County Attainment/Unclassifiable. Sullivan County Attainment/Unclassifiable. Taney County Attainment/Unclassifiable. Texas County Attainment/Unclassifiable. Vernon County Attainment/Unclassifiable. Warren County Attainment/Unclassifiable. Washington County Attainment/Unclassifiable. Wayne County Attainment/Unclassifiable. Webster County Attainment/Unclassifiable. Worth County Attainment/Unclassifiable. Wright County 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. Missouri—Carbon Monoxide Designated Area Designation Classification Date 1 Type Date 1 Type St. Louis Area: St. Louis City Attainment St. Louis County (part): The area encompassed by the I-270 and the, Mississippi River. Attainment AQCR 137 Northern Missouri Intrastate: Pike County Unclassifiable/Attainment Ralls County Unclassifiable/Attainment AQCR 137 Northern Missouri Intrastate (Remainder of) Unclassifiable/Attainment Adair County Andrew County Atchison County Audrain County Boone County Caldwell County Callaway County Carroll County Chariton County Clark County Clinton County Cole County Cooper County Daviess County De Kalb County Gentry County Grundy County Harrison County Holt County Howard County Knox County Lewis County Lincoln County Linn County Livingston County Macon County Marion County Mercer County Moniteau County Monroe County Montgomery County Nodaway County Osage County Putnam County Randolph County Saline County Schuyler County Scotland County Shelby County Sullivan County Warren County Worth County Rest of State Unclassifiable/Attainment Barry County Barton County Bates County Benton County Bollinger County Buchanan County Butler County Camden County Cape Girardeau County Carter County Cass County Cedar County Christina County Clay County Crawford County Dade County Dallas County Dent County Douglas County Dunklin County Franklin County Gasconade County Greene County Henry County Hickory County Howell County Iron County Jackson County Jasper County Jefferson County Johnson County Laclede County Lafayette County Lawrence County Madison County Maries County McDonald County Miller County Mississippi County Morgan County New Madrid County Newton County Oregon County Ozark County Pemiscot County Perry County Pettis County Phelps County Platte County Polk County Pulaski County Ray County Reynolds County Ripley County Scott County Shannon County St. Charles County St. Clair County St. Francis County St. Louis County (part) Remainder of County Ste. Geevieve County Stoddard County Stone County Taney County Texas County Vernon County Washington County Wayne County Webster County Wright County 1 This date is November 15, 1990, unless otherwise noted. Missouri—Ozone (1-Hour Standard) 2 Designated area Designation Classification Date 1 Type Date 1 Type Kansas City Area: Clay County 7/23/1992 Unclassifiable/Attainment Jackson County 7/23/1992 Unclassifiable/Attainment Platte County 7/23/1992 Unclassifiable/Attainment St. Louis Area: Franklin County 5/12/2003 Attainment Jefferson County 5/12/2003 Attainment St. Charles County 5/12/2003 Attainment St. Louis 5/12/2003 Attainment St. Louis County 5/12/2003 Attainment AQCR 094 Metro Kansas City Interstate (Remainder of) Buchanan County Cass County Ray County AQCR 137 N. Missouri Intrastate (part) Pike County Unclassifiable/Attainment Ralls County Unclassifiable/Attainment AQCR 137 N. Missouri Intrastate (Remainder of) Unclassifiable/Attainment Adair County Andrew County Atchison County Audrain County Boone County Caldwell County Callaway County Carroll County Chariton County Clark County Clinton County Cole County Cooper County Daviess County DeKalb County Gentry County Grundy County Harrison County Holt County Howard County Knox County Lewis County Lincoln County Linn County Livingston County Macon County Marion County Mercer County Moniteau County Monroe County Montgomery County Nodaway County Osage County Putnam County Randolph County Saline County Schuyler County Scotland County Shelby County Sullivan County Warren County Worth County Rest of State Unclassifiable/Attainment Barry County Barton County Bates County Benton County Bollinger County Butler County Camden County Cape Girardeau County Carter County Cedar County Christian County Crawford County Dade County Dallas County Dent County Douglas County Dunklin County Gasconade County Greene County Henry County Hickory County Howell County Iron County Jasper County Johnson County Laclede County Lafayette County Lawrence County Madison County Maries County McDonald County Miller County Mississippi County Morgan County New Madrid County Newton County Oregon County Ozark County Pemiscot County Perry County Pettis County Phelps County Polk County Pulaski County Reynolds County Ripley County Scott County Shannon County St. Clair County St. Francois County Ste. Genevieve County Stoddard County Stone County Taney County Texas County Vernon County Washington County Wayne County Webster 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 Missouri. The Kansas City and St. Louis areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X. Missouri—1997 Annual PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date 2 Type St. Louis, MO-IL: Franklin County 8/3/2018 Attainment Jefferson County 8/3/2018 Attainment St. Charles County 8/3/2018 Attainment St. Louis County 8/3/2018 Attainment St. Louis City 8/3/2018 Attainment Rest of State: Adair County Unclassifiable/Attainment. Andrew County Unclassifiable/Attainment. Atchison County Unclassifiable/Attainment. Audrain County Unclassifiable/Attainment. Barry County Unclassifiable/Attainment. Barton County Unclassifiable/Attainment. Bates County Unclassifiable/Attainment. Benton County Unclassifiable/Attainment. Bollinger County Unclassifiable/Attainment. Boone County Unclassifiable/Attainment. Buchanan County Unclassifiable/Attainment. Butler County Unclassifiable/Attainment. Caldwell County Unclassifiable/Attainment. Callaway County Unclassifiable/Attainment. Camden County Unclassifiable/Attainment. Cape Girardeau County Unclassifiable/Attainment. Carroll County Unclassifiable/Attainment. Carter County Unclassifiable/Attainment. Cass County Unclassifiable/Attainment. Cedar County Unclassifiable/Attainment. Chariton County Unclassifiable/Attainment. Christian County Unclassifiable/Attainment. Clark County Unclassifiable/Attainment. Clay County Unclassifiable/Attainment. Clinton County Unclassifiable/Attainment. Cole County Unclassifiable/Attainment. Cooper County Unclassifiable/Attainment. Crawford County Unclassifiable/Attainment. Dade County Unclassifiable/Attainment. Dallas County Unclassifiable/Attainment. Daviess County Unclassifiable/Attainment. DeKalb County Unclassifiable/Attainment. Dent County Unclassifiable/Attainment. Douglas County Unclassifiable/Attainment. Dunklin County Unclassifiable/Attainment. Gasconade County Unclassifiable/Attainment. Gentry County Unclassifiable/Attainment. Greene County Unclassifiable/Attainment. Grundy County Unclassifiable/Attainment. Harrison County Unclassifiable/Attainment. Henry County Unclassifiable/Attainment. Hickory County Unclassifiable/Attainment. Holt County Unclassifiable/Attainment. Howard County Unclassifiable/Attainment. Howell County Unclassifiable/Attainment. Iron County Unclassifiable/Attainment. Jackson County Unclassifiable/Attainment. Jasper County Unclassifiable/Attainment. Johnson County Unclassifiable/Attainment. Knox County Unclassifiable/Attainment. Laclede County Unclassifiable/Attainment. Lafayette County Unclassifiable/Attainment. Lawrence County Unclassifiable/Attainment. Lewis County Unclassifiable/Attainment. Lincoln County Unclassifiable/Attainment. Linn County Unclassifiable/Attainment. Livingston County Unclassifiable/Attainment. McDonald County Unclassifiable/Attainment. Macon County Unclassifiable/Attainment. Madison County Unclassifiable/Attainment. Maries County Unclassifiable/Attainment. Marion County Unclassifiable/Attainment. Mercer County Unclassifiable/Attainment. Miller County Unclassifiable/Attainment. Mississippi County Unclassifiable/Attainment. Moniteau County Unclassifiable/Attainment. Monroe County Unclassifiable/Attainment. Montgomery County Unclassifiable/Attainment. Morgan County Unclassifiable/Attainment. New Madrid County Unclassifiable/Attainment. Newton County Unclassifiable/Attainment. Oregon County Unclassifiable/Attainment. Osage County Unclassifiable/Attainment. Ozark County Unclassifiable/Attainment. Pemiscot County Unclassifiable/Attainment. Perry County Unclassifiable/Attainment. Pettis County Unclassifiable/Attainment. Phelps County Unclassifiable/Attainment. Pike County Unclassifiable/Attainment. Platte County Unclassifiable/Attainment. Polk County Unclassifiable/Attainment. Pulaski County Unclassifiable/Attainment. Putnam County Unclassifiable/Attainment. Ralls County Unclassifiable/Attainment. Randolph County Unclassifiable/Attainment. Ray County Unclassifiable/Attainment. Reynolds County Unclassifiable/Attainment. Ripley County Unclassifiable/Attainment. St. Clair County Unclassifiable/Attainment. St. Genevieve County Unclassifiable/Attainment. St. Francois County Unclassifiable/Attainment. Saline County Unclassifiable/Attainment. Schuyler County Unclassifiable/Attainment. Scotland County Unclassifiable/Attainment. Scott County Unclassifiable/Attainment. Shannon County Unclassifiable/Attainment. Shelby County Unclassifiable/Attainment. Stoddard County Unclassifiable/Attainment. Stone County Unclassifiable/Attainment. Sullivan County Unclassifiable/Attainment. Taney County Unclassifiable/Attainment. Texas County Unclassifiable/Attainment. Vernon County Unclassifiable/Attainment. Warren County Unclassifiable/Attainment. Washington County Unclassifiable/Attainment. Wayne County Unclassifiable/Attainment. Webster County Unclassifiable/Attainment. Worth County Unclassifiable/Attainment. Wright 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. 2 This date is July 2, 2014, unless otherwise noted. Missouri—2012 Annual PM 2.5 NAAQS [Primary] Designated area 1 Designation Classification Date 2 Type Date 2 Type St. Louis Area, MO-IL: Franklin County 7/29/2019, 84 FR 36473 Unclassifiable/Attainment Jefferson County 7/29/2019, 84 FR 36473 Unclassifiable/Attainmant St. Charles County 7/29/2019, 84 FR 36473 Unclassifiable/Attainmant St. Louis County 7/29/2019, 84 FR 36473 Unclassifiable/Attainmant St. Louis City 7/29/2019, 84 FR 36473 Unclassifiable/Attainmant Rest of State: Adair County Unclassifiable/Attainment Andrew County Unclassifiable/Attainment Atchison County Unclassifiable/Attainment Audrain County Unclassifiable/Attainment Barry County Unclassifiable/Attainment Barton County Unclassifiable/Attainment Bates County Unclassifiable/Attainment Benton County Unclassifiable/Attainment Bollinger County Unclassifiable/Attainment Boone County Unclassifiable/Attainment Buchanan County Unclassifiable/Attainment Butler County Unclassifiable/Attainment Caldwell County Unclassifiable/Attainment Callaway County Unclassifiable/Attainment Camden County Unclassifiable/Attainment Cape Girardeau County Unclassifiable/Attainment Carroll County Unclassifiable/Attainment Carter County Unclassifiable/Attainment Cass County Unclassifiable/Attainment Cedar County Unclassifiable/Attainment Chariton County Unclassifiable/Attainment Christian County Unclassifiable/Attainment Clark County Unclassifiable/Attainment Clay County Unclassifiable/Attainment Clinton County Unclassifiable/Attainment Cole County Unclassifiable/Attainment Cooper County Unclassifiable/Attainment Crawford County Unclassifiable/Attainment Dade County Unclassifiable/Attainment Dallas County Unclassifiable/Attainment Daviess County Unclassifiable/Attainment DeKalb County Unclassifiable/Attainment Dent County Unclassifiable/Attainment Douglas County Unclassifiable/Attainment Dunklin County Unclassifiable/Attainment Gasconade County Unclassifiable/Attainment Gentry County Unclassifiable/Attainment Greene County Unclassifiable/Attainment Grundy County Unclassifiable/Attainment Harrison County Unclassifiable/Attainment Henry County Unclassifiable/Attainment Hickory County Unclassifiable/Attainment Holt County Unclassifiable/Attainment Howard County Unclassifiable/Attainment Howell County Unclassifiable/Attainment Iron County Unclassifiable/Attainment Jackson County Unclassifiable/Attainment Jasper County Unclassifiable/Attainment Johnson County Unclassifiable/Attainment Knox County Unclassifiable/Attainment Laclede County Unclassifiable/Attainment Lafayette County Unclassifiable/Attainment Lawrence County Unclassifiable/Attainment Lewis County Unclassifiable/Attainment Lincoln County Unclassifiable/Attainment Linn County Unclassifiable/Attainment Livingston County Unclassifiable/Attainment McDonald County Unclassifiable/Attainment Macon County Unclassifiable/Attainment Madison County Unclassifiable/Attainment Maries County Unclassifiable/Attainment Marion County Unclassifiable/Attainment Mercer County Unclassifiable/Attainment Miller County Unclassifiable/Attainment Mississippi County Unclassifiable/Attainment Moniteau County Unclassifiable/Attainment Monroe County Unclassifiable/Attainment Montgomery County Unclassifiable/Attainment Morgan County Unclassifiable/Attainment New Madrid County Unclassifiable/Attainment Newton County Unclassifiable/Attainment Nodaway County Unclassifiable/Attainment Oregon County Unclassifiable/Attainment Osage County Unclassifiable/Attainment Ozark County Unclassifiable/Attainment Pemiscot County Unclassifiable/Attainment Perry County Unclassifiable/Attainment Pettis County Unclassifiable/Attainment Phelps County Unclassifiable/Attainment Pike County Unclassifiable/Attainment Platte County Unclassifiable/Attainment Polk County Unclassifiable/Attainment Pulaski County Unclassifiable/Attainment Putnam County Unclassifiable/Attainment Ralls County Unclassifiable/Attainment Randolph County Unclassifiable/Attainment Ray County Unclassifiable/Attainment Reynolds County Unclassifiable/Attainment Ripley County Unclassifiable/Attainment St Clair County Unclassifiable/Attainment St Genevieve County Unclassifiable/Attainment St Francois County Unclassifiable/Attainment Saline County Unclassifiable/Attainment Schuyler County Unclassifiable/Attainment Scotland County Unclassifiable/Attainment Scott County Unclassifiable/Attainment Shannon County Unclassifiable/Attainment Shelby County Unclassifiable/Attainment Stoddard County Unclassifiable/Attainment Stone County Unclassifiable/Attainment Sullivan County Unclassifiable/Attainment Taney County Unclassifiable/Attainment Texas County Unclassifiable/Attainment Vernon County Unclassifiable/Attainment Warren County Unclassifiable/Attainment Washington County Unclassifiable/Attainment Wayne County Unclassifiable/Attainment Webster County Unclassifiable/Attainment Worth County Unclassifiable/Attainment Wright 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. Missouri—1997 24-Hour PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date Type Statewide: Adair County Unclassifiable/Attainment. Andrew County Unclassifiable/Attainment. Atchison County Unclassifiable/Attainment. Audrain County Unclassifiable/Attainment. Barry County Unclassifiable/Attainment. Barton County Unclassifiable/Attainment. Bates County Unclassifiable/Attainment. Benton County Unclassifiable/Attainment. Bollinger County Unclassifiable/Attainment. Boone County Unclassifiable/Attainment. Buchanan County Unclassifiable/Attainment. Butler County Unclassifiable/Attainment. Caldwell County Unclassifiable/Attainment. Callaway County Unclassifiable/Attainment. Camden County Unclassifiable/Attainment. Cape Girardeau County Unclassifiable/Attainment. Carroll County Unclassifiable/Attainment. Carter County Unclassifiable/Attainment. Cass County Unclassifiable/Attainment. Cedar County Unclassifiable/Attainment. Chariton County Unclassifiable/Attainment. Christian County Unclassifiable/Attainment. Clark County Unclassifiable/Attainment. Clay County Unclassifiable/Attainment. Clinton County Unclassifiable/Attainment. Cole County Unclassifiable/Attainment. Cooper County Unclassifiable/Attainment. Crawford County Unclassifiable/Attainment. Dade County Unclassifiable/Attainment. Dallas County Unclassifiable/Attainment. Daviess County Unclassifiable/Attainment. DeKalb County Unclassifiable/Attainment. Dent County Unclassifiable/Attainment. Douglas County Unclassifiable/Attainment. Dunklin County Unclassifiable/Attainment. Franklin County Unclassifiable/Attainment. Gasconade County Unclassifiable/Attainment. Gentry County Unclassifiable/Attainment. Greene County Unclassifiable/Attainment. Grundy County Unclassifiable/Attainment. Harrison County Unclassifiable/Attainment. Henry County Unclassifiable/Attainment. Hickory County Unclassifiable/Attainment. Holt County Unclassifiable/Attainment. Howard County Unclassifiable/Attainment. Howell County Unclassifiable/Attainment. Iron County Unclassifiable/Attainment. Jackson County Unclassifiable/Attainment. Jasper County Unclassifiable/Attainment. Jefferson County Unclassifiable/Attainment. Johnson County Unclassifiable/Attainment. Knox County Unclassifiable/Attainment. Laclede County Unclassifiable/Attainment. Lafayette County Unclassifiable/Attainment. Lawrence County Unclassifiable/Attainment. Lewis County Unclassifiable/Attainment. Lincoln County Unclassifiable/Attainment. Linn County Unclassifiable/Attainment. Livingston County Unclassifiable/Attainment. McDonald County Unclassifiable/Attainment. Macon County Unclassifiable/Attainment. Madison County Unclassifiable/Attainment. Maries County Unclassifiable/Attainment. Marion County Unclassifiable/Attainment. Mercer County Unclassifiable/Attainment. Miller County Unclassifiable/Attainment. Mississippi County Unclassifiable/Attainment. Moniteau County Unclassifiable/Attainment. Monroe County Unclassifiable/Attainment. Montgomery County Unclassifiable/Attainment. Morgan County Unclassifiable/Attainment. New Madrid County Unclassifiable/Attainment. Newton County Unclassifiable/Attainment. Nodaway County Unclassifiable/Attainment. Oregon County Unclassifiable/Attainment. Osage County Unclassifiable/Attainment. Ozark County Unclassifiable/Attainment. Pemiscot County Unclassifiable/Attainment. Perry County Unclassifiable/Attainment. Pettis County Unclassifiable/Attainment. Phelps County Unclassifiable/Attainment. Pike County Unclassifiable/Attainment. Platte County Unclassifiable/Attainment. Polk County Unclassifiable/Attainment. Pulaski County Unclassifiable/Attainment. Putnam County Unclassifiable/Attainment. Ralls County Unclassifiable/Attainment. Randolph County Unclassifiable/Attainment. Ray County Unclassifiable/Attainment. Reynolds County Unclassifiable/Attainment. Ripley County Unclassifiable/Attainment. St Charles County Unclassifiable/Attainment. St Clair County Unclassifiable/Attainment. St Genevieve County Unclassifiable/Attainment. St Francois County Unclassifiable/Attainment. St Louis City Unclassifiable/Attainment. St Louis County Unclassifiable/Attainment. Saline County Unclassifiable/Attainment. Schuyler County Unclassifiable/Attainment. Scotland County Unclassifiable/Attainment. Scott County Unclassifiable/Attainment. Shannon County Unclassifiable/Attainment. Shelby County Unclassifiable/Attainment. Stoddard County Unclassifiable/Attainment. Stone County Unclassifiable/Attainment. Sullivan County Unclassifiable/Attainment. Taney County Unclassifiable/Attainment. Texas County Unclassifiable/Attainment. Vernon County Unclassifiable/Attainment. Warren County Unclassifiable/Attainment. Washington County Unclassifiable/Attainment. Wayne County Unclassifiable/Attainment. Webster County Unclassifiable/Attainment. Worth County Unclassifiable/Attainment. Wright 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. Missouri—2006 24-Hour PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date Type Statewide: Adair County Unclassifiable/Attainment. Andrew County Unclassifiable/Attainment. Atchison County Unclassifiable/Attainment. Audrain County Unclassifiable/Attainment. Barry County Unclassifiable/Attainment. Barton County Unclassifiable/Attainment. Bates County Unclassifiable/Attainment. Benton County Unclassifiable/Attainment. Bollinger County Unclassifiable/Attainment. Boone County Unclassifiable/Attainment. Buchanan County Unclassifiable/Attainment. Butler County Unclassifiable/Attainment. Caldwell County Unclassifiable/Attainment. Callaway County Unclassifiable/Attainment. Camden County Unclassifiable/Attainment. Cape Girardeau County Unclassifiable/Attainment. Carroll County Unclassifiable/Attainment. Carter County Unclassifiable/Attainment. Cass County Unclassifiable/Attainment. Cedar County Unclassifiable/Attainment. Chariton County Unclassifiable/Attainment. Christian County Unclassifiable/Attainment. Clark County Unclassifiable/Attainment. Clay County Unclassifiable/Attainment. Clinton County Unclassifiable/Attainment. Cole County Unclassifiable/Attainment. Cooper County Unclassifiable/Attainment. Crawford County Unclassifiable/Attainment. Dade County Unclassifiable/Attainment. Dallas County Unclassifiable/Attainment. Daviess County Unclassifiable/Attainment. DeKalb County Unclassifiable/Attainment. Dent County Unclassifiable/Attainment. Douglas County Unclassifiable/Attainment. Dunklin County Unclassifiable/Attainment. Franklin County Unclassifiable/Attainment. Gasconade County Unclassifiable/Attainment. Gentry County Unclassifiable/Attainment. Greene County Unclassifiable/Attainment. Grundy County Unclassifiable/Attainment. Harrison County Unclassifiable/Attainment. Henry County Unclassifiable/Attainment. Hickory County Unclassifiable/Attainment. Holt County Unclassifiable/Attainment. Howard County Unclassifiable/Attainment. Howell County Unclassifiable/Attainment. Iron County Unclassifiable/Attainment. Jackson County Unclassifiable/Attainment. Jasper County Unclassifiable/Attainment. Jefferson County Unclassifiable/Attainment. Johnson County Unclassifiable/Attainment. Knox County Unclassifiable/Attainment. Laclede County Unclassifiable/Attainment. Lafayette County Unclassifiable/Attainment. Lawrence County Unclassifiable/Attainment. Lewis County Unclassifiable/Attainment. Lincoln County Unclassifiable/Attainment. Linn County Unclassifiable/Attainment. Livingston County Unclassifiable/Attainment. McDonald County Unclassifiable/Attainment. Macon County Unclassifiable/Attainment. Madison County Unclassifiable/Attainment. Maries County Unclassifiable/Attainment. Marion County Unclassifiable/Attainment. Mercer County Unclassifiable/Attainment. Miller County Unclassifiable/Attainment. Mississippi County Unclassifiable/Attainment. Moniteau County Unclassifiable/Attainment. Monroe County Unclassifiable/Attainment. Montgomery County Unclassifiable/Attainment. Morgan County Unclassifiable/Attainment. New Madrid County Unclassifiable/Attainment. Newton County Unclassifiable/Attainment. Nodaway County Unclassifiable/Attainment. Oregon County Unclassifiable/Attainment. Osage County Unclassifiable/Attainment. Ozark County Unclassifiable/Attainment. Pemiscot County Unclassifiable/Attainment. Perry County Unclassifiable/Attainment. Pettis County Unclassifiable/Attainment. Phelps County Unclassifiable/Attainment. Pike County Unclassifiable/Attainment. Platte County Unclassifiable/Attainment. Polk County Unclassifiable/Attainment. Pulaski County Unclassifiable/Attainment. Putnam County Unclassifiable/Attainment. Ralls County Unclassifiable/Attainment. Randolph County Unclassifiable/Attainment. Ray County Unclassifiable/Attainment. Reynolds County Unclassifiable/Attainment. Ripley County Unclassifiable/Attainment. St Charles County Unclassifiable/Attainment. St Clair County Unclassifiable/Attainment. St Genevieve County Unclassifiable/Attainment. St Francois County Unclassifiable/Attainment. St Louis City Unclassifiable/Attainment. St Louis County Unclassifiable/Attainment. Saline County Unclassifiable/Attainment. Schuyler County Unclassifiable/Attainment. Scotland County Unclassifiable/Attainment. Scott County Unclassifiable/Attainment. Shannon County Unclassifiable/Attainment. Shelby County Unclassifiable/Attainment. Stoddard County Unclassifiable/Attainment. Stone County Unclassifiable/Attainment. Sullivan County Unclassifiable/Attainment. Taney County Unclassifiable/Attainment. Texas County Unclassifiable/Attainment. Vernon County Unclassifiable/Attainment. Warren County Unclassifiable/Attainment. Washington County Unclassifiable/Attainment. Wayne County Unclassifiable/Attainment. Webster County Unclassifiable/Attainment. Worth County Unclassifiable/Attainment. Wright 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. Missouri—NO 2 (1971 Annual Standard) Designated area Does not meet primary standards Cannot be classified or better than national standards Northern AQCR (137): Pike County X Ralls County X Remainder of AQCR X Remainder of State X Missouri—NO 2 (2010 1-Hour Standard) Designated area Designation a Date 1 Type Adair County Unclassifiable/Attainment. Andrew County Unclassifiable/Attainment. Atchison County Unclassifiable/Attainment. Audrain County Unclassifiable/Attainment. Barry County Unclassifiable/Attainment. Barton County Unclassifiable/Attainment. Bates County Unclassifiable/Attainment. Benton County Unclassifiable/Attainment. Bollinger County Unclassifiable/Attainment. Boone County Unclassifiable/Attainment. Buchanan County Unclassifiable/Attainment. Butler County Unclassifiable/Attainment. Caldwell County Unclassifiable/Attainment. Callaway County Unclassifiable/Attainment. Camden County Unclassifiable/Attainment. Cape Girardeau County Unclassifiable/Attainment. Carroll County Unclassifiable/Attainment. Carter County Unclassifiable/Attainment. Cass County Unclassifiable/Attainment. Cedar County Unclassifiable/Attainment. Chariton County Unclassifiable/Attainment. Christian County Unclassifiable/Attainment. Clark County Unclassifiable/Attainment. Clay County Unclassifiable/Attainment. Clinton County Unclassifiable/Attainment. Cole County Unclassifiable/Attainment. Cooper County Unclassifiable/Attainment. Crawford County Unclassifiable/Attainment. Dade County Unclassifiable/Attainment. Dallas County Unclassifiable/Attainment. Daviess County Unclassifiable/Attainment. DeKalb County Unclassifiable/Attainment. Dent County Unclassifiable/Attainment. Douglas County Unclassifiable/Attainment. Dunklin County Unclassifiable/Attainment. Franklin County Unclassifiable/Attainment. Gasconade County Unclassifiable/Attainment. Gentry County Unclassifiable/Attainment. Greene County Unclassifiable/Attainment. Grundy County Unclassifiable/Attainment. Harrison County Unclassifiable/Attainment. Henry County Unclassifiable/Attainment. Hickory County Unclassifiable/Attainment. Holt County Unclassifiable/Attainment. Howard County Unclassifiable/Attainment. Howell County Unclassifiable/Attainment. Iron County Unclassifiable/Attainment. Jackson County Unclassifiable/Attainment. Jasper County Unclassifiable/Attainment. Jefferson County Unclassifiable/Attainment. Johnson County Unclassifiable/Attainment. Knox County Unclassifiable/Attainment. Laclede County Unclassifiable/Attainment. Lafayette County Unclassifiable/Attainment. Lawrence County Unclassifiable/Attainment. Lewis County Unclassifiable/Attainment. Lincoln County Unclassifiable/Attainment. Linn County Unclassifiable/Attainment. Livingston County Unclassifiable/Attainment. McDonald County Unclassifiable/Attainment. Macon County Unclassifiable/Attainment. Madison County Unclassifiable/Attainment. Maries County Unclassifiable/Attainment. Marion County Unclassifiable/Attainment. Mercer County Unclassifiable/Attainment. Miller County Unclassifiable/Attainment. Mississippi County Unclassifiable/Attainment. Moniteau County Unclassifiable/Attainment. Monroe County Unclassifiable/Attainment. Montgomery County Unclassifiable/Attainment. Morgan County Unclassifiable/Attainment. New Madrid County Unclassifiable/Attainment. Newton County Unclassifiable/Attainment. Nodaway County Unclassifiable/Attainment. Oregon County Unclassifiable/Attainment. Osage County Unclassifiable/Attainment. Ozark County Unclassifiable/Attainment. Pemiscot County Unclassifiable/Attainment. Perry County Unclassifiable/Attainment. Pettis County Unclassifiable/Attainment. Phelps County Unclassifiable/Attainment. Pike County Unclassifiable/Attainment. Platte County Unclassifiable/Attainment. Polk County Unclassifiable/Attainment. Pulaski County Unclassifiable/Attainment. Putnam County Unclassifiable/Attainment. Ralls County Unclassifiable/Attainment. Randolph County Unclassifiable/Attainment. Ray County Unclassifiable/Attainment. Reynolds County Unclassifiable/Attainment. Ripley County Unclassifiable/Attainment. St. Charles County Unclassifiable/Attainment. St. Clair County Unclassifiable/Attainment. St. Genevieve County Unclassifiable/Attainment. St. Francois County Unclassifiable/Attainment. St. Louis County Unclassifiable/Attainment. St. Louis City Unclassifiable/Attainment. Saline County Unclassifiable/Attainment. Schuyler County Unclassifiable/Attainment. Scotland County Unclassifiable/Attainment. Scott County Unclassifiable/Attainment. Shannon County Unclassifiable/Attainment. Shelby County Unclassifiable/Attainment. Stoddard County Unclassifiable/Attainment. Stone County Unclassifiable/Attainment. Sullivan County Unclassifiable/Attainment. Taney County Unclassifiable/Attainment. Texas County Unclassifiable/Attainment. Vernon County Unclassifiable/Attainment. Warren County Unclassifiable/Attainment. Washington County Unclassifiable/Attainment. Wayne County Unclassifiable/Attainment. Webster County Unclassifiable/Attainment. Worth County Unclassifiable/Attainment. Wright County 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. Missouri—1997 8-Hour Ozone NAAQS [Primary and Secondary] Designated area Designation a Category/classification Date 1 Type Date 1 Type Kansas City, MO-KS: Cass County 5/3/2005 Attainment. Clay County 5/3/2005 Attainment. Jackson County 5/3/2005 Attainment. Platte County 5/3/2005 Attainment. St. Louis, MO-IL Franklin County 2/20/2015 Attainment Jefferson County 2/20/2015 Attainment St. Charles County 2/20/2015 Attainment St. Louis City 2/20/2015 Attainment St. Louis County 2/20/2015 Attainment AQCR 094 Metro Kansas City Interstate Unclassifiable/Attainment. Buchanan County Ray County AQCR 137 N. Missouri Intrastate (part) Pike County Unclassifiable/Attainment. Ralls County Unclassifiable/Attainment. AQCR 137 N. Missouri Intrastate (remainder of)Unclassifiable/Attainment. Adair County Andrew County Atchison County Audrain County Boone County Caldwell County Callaway County Carroll County Chariton County Clark County Clinton County Cole County Cooper County Daviess County DeKalb County Gentry County Grundy County Harrison County Holt County Howard County Knox County Lewis County Lincoln County Linn County Livingston County Macon County Marion County Mercer County Moniteau County Monroe County Montgomery County Nodaway County Osage County Putnam County Randolph County Saline County Schuyler County Scotland County Shelby County Sullivan County Warren County Worth County Rest of State: Unclassifiable/Attainment Barry County Barton County Bates County Benton County Bollinger County Butler County Camden County Cape Girardeau County Carter County Cedar County Christian County Crawford County Dade County Dallas County Dent County Douglas County Dunklin County Gasconade County Greene County Henry County Hickory County Howell County Iron County Jasper County Johnson County Laclede County Lafayette County Lawrence County Madison County Maries County McDonald County Miller County Mississippi County Morgan County New Madrid County Newton County Oregon County Ozark County Pemiscot County Perry County Pettis County Phelps County Polk County Pulaski County Reynolds County Ripley County St. Clair County St. Francois County Ste. Genevieve County Scott County Shannon County Stoddard County Stone County Taney County Texas County Vernon County Washington County Wayne County Webster 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. Missouri—2008 8-Hour Ozone NAAQS [Primary and Secondary] Designated area Designation Classification Date 1 Type Date 1 Type St. Louis-St. Charles-Farmington, MO-IL 2 : Franklin County 9/20/2018 Attainment Jefferson County 9/20/2018 Attainment St. Charles County 9/20/2018 Attainment St. Louis County 9/20/2018 Attainment St. Louis City 9/20/2018 Attainment Rest of State: 3 Unclassifiable/Attainment Adair County Andrew County Atchison County Audrain County Barry County Barton County Bates County Benton County Bollinger County Boone County Buchanan County Butler County Caldwell County Callaway County Camden County Cape Girardeau County Carter County Cass County Cedar County Chariton County Christian County Clark County Clay County Clinton County Cole County Cooper County Crawford County Dade County Dallas County Daviess County DeKalb County Dent County Douglas County Dunklin County Gasconade County Gentry County Greene County Grundy County Harrison County Henry County Hickory County Holt County Howard County Howell County Iron County Jackson County Jasper County Johnson County Knox County Laclede County Lafayette County Lawrence County Lewis County Lincoln County Linn County Livingston County McDonald County Macon County Madison County Maries County Marion County Mercer County Miller County Mississippi County Moniteau County Monroe County Montgomery County Morgan County New Madrid County Newton County Nodaway County Oregon County Osage County Ozark County Pemiscot County Perry County Pettis County Phelps County Pike County Platte County Polk County Pulaski County Putnam County Ralls County Randolph County Ray County Reynolds County Ripley County St. Clair County St. Genevieve County St. Francois County Saline County Schuyler County Scotland County Scott County Shannon County Shelby County Stoddard County Stone County Sullivan County Taney County Texas County Vernon County Warren County Washington County Wayne County Webster County Worth County Wright County 1 This date is July 20, 2012, unless otherwise noted. 2 Excludes Indian country located in each area, unless otherwise noted. 3 Includes any Indian country in each county or area, unless otherwise specified. 4 Attainment date is extended to July 20, 2016. Missouri—2015 8-Hour Ozone NAAQS [Primary and Secondary] Designated area 1 Designation Classification Date 2 Type Date 2 Type St. Louis, MO-IL: Nonattainment 12/31/2024 Serious. Franklin County (part). Boles Township: Jefferson County July 14, 2021 3 St. Charles County. St. Louis County. City of St. Louis. Adair County 1/16/2018 Attainment/Unclassifiable Andrew County 1/16/2018 Attainment/Unclassifiable Atchison County 1/16/2018 Attainment/Unclassifiable Audrain County 1/16/2018 Attainment/Unclassifiable Barry County 1/16/2018 Attainment/Unclassifiable Barton County 1/16/2018 Attainment/Unclassifiable Bates County 1/16/2018 Attainment/Unclassifiable Benton County 1/16/2018 Attainment/Unclassifiable Bollinger County 1/16/2018 Attainment/Unclassifiable Boone County 1/16/2018 Attainment/Unclassifiable Buchanan County 1/16/2018 Attainment/Unclassifiable Butler County 1/16/2018 Attainment/Unclassifiable Caldwell County 1/16/2018 Attainment/Unclassifiable Callaway County 1/16/2018 Attainment/Unclassifiable Camden County 1/16/2018 Attainment/Unclassifiable Cape Girardeau County 1/16/2018 Attainment/Unclassifiable Carroll County 1/16/2018 Attainment/Unclassifiable Carter County 1/16/2018 Attainment/Unclassifiable Cass County 1/16/2018 Attainment/Unclassifiable Cedar County 1/16/2018 Attainment/Unclassifiable Chariton County 1/16/2018 Attainment/Unclassifiable Christian County 1/16/2018 Attainment/Unclassifiable Clark County 1/16/2018 Attainment/Unclassifiable Clay County 1/16/2018 Attainment/Unclassifiable Clinton County 1/16/2018 Attainment/Unclassifiable Cole County 1/16/2018 Attainment/Unclassifiable Cooper County 1/16/2018 Attainment/Unclassifiable Crawford County 1/16/2018 Attainment/Unclassifiable Dade County 1/16/2018 Attainment/Unclassifiable Dallas County 1/16/2018 Attainment/Unclassifiable Daviess County 1/16/2018 Attainment/Unclassifiable DeKalb County 1/16/2018 Attainment/Unclassifiable Dent County 1/16/2018 Attainment/Unclassifiable Douglas County 1/16/2018 Attainment/Unclassifiable Dunklin County 1/16/2018 Attainment/Unclassifiable Franklin County (part) remainder Attainment/Unclassifiable Gasconade County 1/16/2018 Attainment/Unclassifiable Gentry County 1/16/2018 Attainment/Unclassifiable Greene County 1/16/2018 Attainment/Unclassifiable Grundy County 1/16/2018 Attainment/Unclassifiable Harrison County 1/16/2018 Attainment/Unclassifiable Henry County 1/16/2018 Attainment/Unclassifiable Hickory County 1/16/2018 Attainment/Unclassifiable Holt County 1/16/2018 Attainment/Unclassifiable Howard County 1/16/2018 Attainment/Unclassifiable Howell County 1/16/2018 Attainment/Unclassifiable Iron County 1/16/2018 Attainment/Unclassifiable Jackson County 1/16/2018 Attainment/Unclassifiable Jasper County 1/16/2018 Attainment/Unclassifiable Johnson County 1/16/2018 Attainment/Unclassifiable Knox County 1/16/2018 Attainment/Unclassifiable Laclede County 1/16/2018 Attainment/Unclassifiable Lafayette County 1/16/2018 Attainment/Unclassifiable Lawrence County 1/16/2018 Attainment/Unclassifiable Lewis County 1/16/2018 Attainment/Unclassifiable Lincoln County Attainment/Unclassifiable Linn County 1/16/2018 Attainment/Unclassifiable Livingston County 1/16/2018 Attainment/Unclassifiable McDonald County 1/16/2018 Attainment/Unclassifiable Macon County 1/16/2018 Attainment/Unclassifiable Madison County 1/16/2018 Attainment/Unclassifiable Maries County 1/16/2018 Attainment/Unclassifiable Marion County 1/16/2018 Attainment/Unclassifiable Mercer County 1/16/2018 Attainment/Unclassifiable Miller County 1/16/2018 Attainment/Unclassifiable Mississippi County 1/16/2018 Attainment/Unclassifiable Moniteau County 1/16/2018 Attainment/Unclassifiable Monroe County 1/16/2018 Attainment/Unclassifiable Montgomery County 1/16/2018 Attainment/Unclassifiable Morgan County 1/16/2018 Attainment/Unclassifiable New Madrid County 1/16/2018 Attainment/Unclassifiable Newton County 1/16/2018 Attainment/Unclassifiable Nodaway County 1/16/2018 Attainment/Unclassifiable Oregon County 1/16/2018 Attainment/Unclassifiable Osage County 1/16/2018 Attainment/Unclassifiable Ozark County 1/16/2018 Attainment/Unclassifiable Pemiscot County 1/16/2018 Attainment/Unclassifiable Perry County 1/16/2018 Attainment/Unclassifiable Pettis County 1/16/2018 Attainment/Unclassifiable Phelps County 1/16/2018 Attainment/Unclassifiable Pike County 1/16/2018 Attainment/Unclassifiable Platte County 1/16/2018 Attainment/Unclassifiable Polk County 1/16/2018 Attainment/Unclassifiable Pulaski County 1/16/2018 Attainment/Unclassifiable Putnam County 1/16/2018 Attainment/Unclassifiable Ralls County 1/16/2018 Attainment/Unclassifiable Randolph County 1/16/2018 Attainment/Unclassifiable Ray County 1/16/2018 Attainment/Unclassifiable Reynolds County 1/16/2018 Attainment/Unclassifiable Ripley County 1/16/2018 Attainment/Unclassifiable St. Clair County 1/16/2018 Attainment/Unclassifiable St. Francois County Attainment/Unclassifiable Ste. Genevieve County 1/16/2018 Attainment/Unclassifiable Saline County 1/16/2018 Attainment/Unclassifiable Schuyler County 1/16/2018 Attainment/Unclassifiable Scotland County 1/16/2018 Attainment/Unclassifiable Scott County 1/16/2018 Attainment/Unclassifiable Shannon County 1/16/2018 Attainment/Unclassifiable Shelby County 1/16/2018 Attainment/Unclassifiable Stoddard County 1/16/2018 Attainment/Unclassifiable Stone County 1/16/2018 Attainment/Unclassifiable Sullivan County 1/16/2018 Attainment/Unclassifiable Taney County 1/16/2018 Attainment/Unclassifiable Texas County 1/16/2018 Attainment/Unclassifiable Vernon County 1/16/2018 Attainment/Unclassifiable Warren County Attainment/Unclassifiable Washington County 1/16/2018 Attainment/Unclassifiable Wayne County 1/16/2018 Attainment/Unclassifiable Webster County 1/16/2018 Attainment/Unclassifiable Worth County 1/16/2018 Attainment/Unclassifiable Wright 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. 3 EPA revised the nonattainment boundary in response to a court decision, which did not vacate any designations for the 2015 ozone NAAQS, but which remanded the designation for the identified county. Because this additional area is part of a previously designated nonattainment area, the implementation dates for the overall nonattainment area ( e.g., the August 3, 2021 attainment date) remain unchanged regardless of this later designation date. Missouri—1978 Lead NAAQS Designated area Designation Classification Date Type Date Type Iron County (part) Within boundaries of Dent Township 10/18/2000 Attainment Iron County (part) Within boundaries of Liberty and Arcadia Townships 10/29/2004 Attainment Jefferson County (part) Within city limits of Herculaneum 1/6/1992 Nonattainment Dent County 1/6/1992 Unclassifiable Holt County 1/6/1992 Unclassifiable Rest of State Not Designated. Missouri—2008 Lead NAAQS Designated area Designation for the 2008 NAAQS a Date 1 Type Iron, Dent, and Reynolds Counties, MO: Dent County (part) 12/31/2010 Nonattainment. Sections 4, 9, 16, 21, 28, 33 of T34N, R2W Iron County (part) 12/31/2010 Nonattainment. Sections 6-7, 18-19, 30-32 of T34N, R1W and Sections 1-3, 10-15, 22-27, 34-36 of T34N, R2W. Reynolds County (part) 12/31/2010 Nonattainment. Sections 5-7 of T33N, R1W and Sections 1-3, 10-12 of T33N, R2W. Jefferson County, MO: Jefferson County (part) 12/31/2010 Nonattainment. Within city limits of Herculaneum. Rest of State Unclassifiable/Attainment. a Includes Indian Country located in each county or area, except as otherwise specified. 1 December 31, 2011 unless otherwise noted. [43 FR 8964, Mar. 3, 1978] Editorial Note: For Federal Register citations affecting § 81.326, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.