Illinois.

Illinois—TSP Designated area Does not meet primary Does not meet secondary Cannot be classified Better than national standards Cook County: a. Lyons Township X X b. The area bounded on the north by 79th Street, on the west by Interstate 57 between Sibley Boulevard and Interstate 94 and by Interstate 94 between Interstate 57 and 79th Street, on the south by Sibley Boulevard, and on the east by the Illinois/Indiana State line X X LaSalle County: Those portions of LaSalle Township located in the following Townships, ranges, and sections: T33N, R1E, S24; T33N, R1E, S25; T33N, R2E, S30; T33N, R2E, S31; and T33N, R1E, S36 X X Those portions of Deer Park Township located in the following Townships, ranges, and sections: T32N, R1E, S1; T32N, R2E, S6; T33N, R1E, S24; T33N, R1E, S25; T33N, R2E, S30; T33N, R2E, S31; and T33N, R1E, S36 X Madison County: Granite City Township and Nameoki Township X X All other portions of Illinois counties X Illinois—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 AQCR 65: Fulton County X Hancock County X Henderson County X Knox County X McDonough County X Mason County X Peoria County X Tazewell County X Warren County X Woodford County X Lee County X AQCR 66: Champaign County X Clark County X Coles County X Cumberland County X De Witt County X Douglas County X Edgar County X Ford County X Iroquois County X Livingston County X McLean County X Moultrie County X Platt County X Shelby County X Vermilion County X AQCR 67: Cook County: Bremer Twp X Calumet Twp X Thornton Twp X Worth Twp X All other Cook County twps X Will County: Channahon Twp X Du Page Twp X Joliet Twp X Lockport Twp X Troy Twp X All other Will County twps X Du Page County X Grundy County X Kane County X Kankakee County X Kendall County X Lake County X McHenry County X AQCR 68: Jo Daviess County X AQCR 69: Carroll County X Henry County X Mercer County X Rock Island County X Whiteside County X AQCR 70: Madison County: Wood River Twp X Alton Twp X All other Madison twps X Bond County X Clinton County X Monroe County X Randolph County X St. Clair County X Washington County X AQCR 71: Bureau County: Shelby Twp X All other Bureau twps X La Salle County X Lee County X Marshall County X Putnam County X Stark County X AQCR 72: Massac County X Alexander County X Johnson County X Pope County X Pulaski County X Union County X AQCR 73 Boone County X De Kalb County X Ogle County X Stephenson X Winnebago County X AQCR 74: Clay County X Crawford County X Edwards County X Effingham County X Fayette County X Franklin County X Gallatin County X Hamilton County X Hardin County X Jackson County X Jasper County X Jefferson County X Lawrence County X Marion County X Perry County X Richland County X Saline County X Wabash County X Wayne County X White County X Williamson County X AQCR 75: Christian County: South Fork Twp X All other twps X Sangamon County: Capital Twp X Cooper Twp X Cotton Hill Twp X Rochester Twp X Woodside Twp X All other twps X Adams County X Brown County X Calhoun County X Cass County X Greene County X Jersey County X Logan County X Macon County X Nacoupin County X Menard County X Montgomery County X Morgan County X Pike County X Schuyler County X Scott County X Illinois—2010 Sulfur Dioxide NAAQS [Primary] Designated area 1 Designation Date 2 Type Alton Township, IL 12/30/2024 Attainment. Madison County (part) Within Alton Township: Area east of Corporal Belchik Memorial Expressway, south of East Broadway, south of Route 3, and north of Route 143 Lemont, IL 5/26/2020 Attainment. Cook County (part) Lemont Township Will County (part) DuPage Township and Lockport Township Pekin, IL 5/26/2020 Attainment. Tazewell County (part) Cincinnati Township and Pekin Township Peoria County (part) Hollis Township Rest of State: Adams County Attainment/Unclassifiable. Alexander County Attainment/Unclassifiable. Bond County Attainment/Unclassifiable. Boone County Attainment/Unclassifiable. Brown County Attainment/Unclassifiable. Bureau County 9/12/2016 Attainment/Unclassifiable. Calhoun County Attainment/Unclassifiable. Carroll County Attainment/Unclassifiable. Cass County Attainment/Unclassifiable. Champaign County Attainment/Unclassifiable. Christian County Attainment/Unclassifiable. Clark County Attainment/Unclassifiable. Clay County Attainment/Unclassifiable. Clinton County Attainment/Unclassifiable. Coles County Attainment/Unclassifiable. Cook County (part) (remainder) Attainment/Unclassifiable. Crawford County Attainment/Unclassifiable. Cumberland County Attainment/Unclassifiable. De Kalb County Attainment/Unclassifiable. De Witt County Attainment/Unclassifiable. Douglas County Attainment/Unclassifiable. Du Page County Attainment/Unclassifiable. Edgar County Attainment/Unclassifiable. Edwards County Attainment/Unclassifiable. Effingham County Attainment/Unclassifiable. Fayette County Attainment/Unclassifiable. Ford County Attainment/Unclassifiable. Franklin County Attainment/Unclassifiable. Fulton County Attainment/Unclassifiable. Gallatin County Attainment/Unclassifiable. Greene County Attainment/Unclassifiable. Grundy County Attainment/Unclassifiable. Hamilton County Attainment/Unclassifiable. Hancock County Attainment/Unclassifiable. Hardin County Attainment/Unclassifiable. Henderson County Attainment/Unclassifiable. Henry County Attainment/Unclassifiable. Iroquois County Attainment/Unclassifiable. Jackson County Attainment/Unclassifiable. Jasper County 9/12/2016 Attainment/Unclassifiable. Jefferson County Attainment/Unclassifiable. Jersey County Attainment/Unclassifiable. Jo Daviess County Attainment/Unclassifiable. Johnson County Attainment/Unclassifiable. Kane County Attainment/Unclassifiable. Kankakee County Attainment/Unclassifiable. Kendall County Attainment/Unclassifiable. Knox County Attainment/Unclassifiable. Lake County Attainment/Unclassifiable. La Salle County Attainment/Unclassifiable. Lawrence County Attainment/Unclassifiable. Lee County Attainment/Unclassifiable. Livingston County Attainment/Unclassifiable. Logan County Attainment/Unclassifiable. McDonough County Attainment/Unclassifiable. McHenry County Attainment/Unclassifiable. McLean County Attainment/Unclassifiable. Macon County 4/30/2021 Attainment/Unclassifiable. Macoupin County Attainment/Unclassifiable. Madison County (part) (remainder) 4 Attainment/Unclassifiable. Marion County Attainment/Unclassifiable. Marshall County Attainment/Unclassifiable. Mason County Attainment/Unclassifiable. Massac County 9/12/2016 Attainment/Unclassifiable. Menard County Attainment/Unclassifiable. Mercer County Attainment/Unclassifiable. Monroe County Attainment/Unclassifiable. Montgomery County Attainment/Unclassifiable. Morgan County Attainment/Unclassifiable. Moultrie County Attainment/Unclassifiable. Ogle County Attainment/Unclassifiable. Peoria County (part) (remainder) Attainment/Unclassifiable. Perry County Attainment/Unclassifiable. Piatt County Attainment/Unclassifiable. Pike County Attainment/Unclassifiable. Pope County Attainment/Unclassifiable. Pulaski County Attainment/Unclassifiable. Putnam County 9/12/2016 Attainment/Unclassifiable. Randolph County Attainment/Unclassifiable. Richland County Attainment/Unclassifiable. Rock Island County Attainment/Unclassifiable. St. Clair County Attainment/Unclassifiable. Saline County Attainment/Unclassifiable. Sangamon County Attainment/Unclassifiable. Schuyler County Attainment/Unclassifiable. Scott County Attainment/Unclassifiable. Shelby County Attainment/Unclassifiable. Stark County Attainment/Unclassifiable. Stephenson County Attainment/Unclassifiable. Tazewell County (part) (remainder) Attainment/Unclassifiable. Union County Attainment/Unclassifiable. Vermilion County Attainment/Unclassifiable. Wabash County Attainment/Unclassifiable. Warren County Attainment/Unclassifiable. Washington County Attainment/Unclassifiable. Wayne County Attainment/Unclassifiable. White County Attainment/Unclassifiable. Whiteside County Attainment/Unclassifiable. Will County (part) (remainder) Attainment/Unclassifiable. Williamson County 3 10/15/2019 Attainment/Unclassifiable. Winnebago County Attainment/Unclassifiable. Woodford 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. 3 Williamson County was initially designated on September 12, 2016. The initial designation was reconsidered and modified on October 15, 2019. 4 A portion of Madison County, specifically all of Wood River Township, and the area in Chouteau Township north of Cahokia Diversion Channel, was designated attainment/unclassifiable on 9/12/2016. Illinois—Carbon Monoxide Designated Area Designation Classification Date 1 Type Date 1 Type Adams County Unclassifiable/Attainment Alexander County Unclassifiable/Attainment Bond County Unclassifiable/Attainment Boone County Unclassifiable/Attainment Brown County Unclassifiable/Attainment Bureau County Unclassifiable/Attainment Calhoun County Unclassifiable/Attainment Carroll County Unclassifiable/Attainment Cass County Unclassifiable/Attainment Champaign County Unclassifiable/Attainment Christian County Unclassifiable/Attainment Clark County Unclassifiable/Attainment Clay County Unclassifiable/Attainment Clinton County Unclassifiable/Attainment Coles County Unclassifiable/Attainment Cook County Unclassifiable/Attainment Crawford County Unclassifiable/Attainment Cumberland County Unclassifiable/Attainment De Kalb County Unclassifiable/Attainment De Witt County Unclassifiable/Attainment Douglas County Unclassifiable/Attainment Du Page County Unclassifiable/Attainment Edgar County Unclassifiable/Attainment Edwards County Unclassifiable/Attainment Effingham County Unclassifiable/Attainment Fayette County Unclassifiable/Attainment Ford County Unclassifiable/Attainment Franklin County Unclassifiable/Attainment Fulton County Unclassifiable/Attainment Gallatin County Unclassifiable/Attainment Greene County Unclassifiable/Attainment Grundy County Unclassifiable/Attainment Hamilton County Unclassifiable/Attainment Hancock County Unclassifiable/Attainment Hardin County Unclassifiable/Attainment Henderson County Unclassifiable/Attainment Henry County Unclassifiable/Attainment Iroquois County Unclassifiable/Attainment Jackson County Unclassifiable/Attainment Jasper County Unclassifiable/Attainment Jefferson County Unclassifiable/Attainment Jersey County Unclassifiable/Attainment Jo Daviess County Unclassifiable/Attainment Johnson County Unclassifiable/Attainment Kane County Unclassifiable/Attainment Kankakee County Unclassifiable/Attainment Kendall County Unclassifiable/Attainment Knox County Unclassifiable/Attainment Lake County Unclassifiable/Attainment La Salle County Unclassifiable/Attainment Lawrence County Unclassifiable/Attainment Lee County Unclassifiable/Attainment Livingston County Unclassifiable/Attainment Logan County Unclassifiable/Attainment Macon County Unclassifiable/Attainment Macoupin County Unclassifiable/Attainment Madison County Unclassifiable/Attainment Marion County Unclassifiable/Attainment Marshall County Unclassifiable/Attainment Mason County Unclassifiable/Attainment Massac County Unclassifiable/Attainment McDonough County Unclassifiable/Attainment McHenry County Unclassifiable/Attainment McLean County Unclassifiable/Attainment Menard County Unclassifiable/Attainment Mercer County Unclassifiable/Attainment Monroe County Unclassifiable/Attainment Montgomery County Unclassifiable/Attainment Morgan County Unclassifiable/Attainment Moultrie County Unclassifiable/Attainment Ogle County Unclassifiable/Attainment Peoria County Unclassifiable/Attainment Perry County Unclassifiable/Attainment Piatt County Unclassifiable/Attainment Pike County Unclassifiable/Attainment Pope County Unclassifiable/Attainment Pulaski County Unclassifiable/Attainment Putnam County Unclassifiable/Attainment Randolph County Unclassifiable/Attainment Richland County Unclassifiable/Attainment Rock Island County Unclassifiable/Attainment St. Clair County Unclassifiable/Attainment Saline County Unclassifiable/Attainment Sangamon County Unclassifiable/Attainment Schuyler County Unclassifiable/Attainment Scott County Unclassifiable/Attainment Shelby County Unclassifiable/Attainment Stark County Unclassifiable/Attainment Stephenson County Unclassifiable/Attainment Tazewell County Unclassifiable/Attainment Union County Unclassifiable/Attainment Vermilion County Unclassifiable/Attainment Wabash County Unclassifiable/Attainment Warren County Unclassifiable/Attainment Washington County Unclassifiable/Attainment Wayne County Unclassifiable/Attainment White County Unclassifiable/Attainment Whiteside County Unclassifiable/Attainment Will County Unclassifiable/Attainment Williamson County Unclassifiable/Attainment Winnebago County Unclassifiable/Attainment Woodford County Unclassifiable/Attainment 1 This date is November 15, 1990, unless otherwise noted. Illinois—Ozone (1-Hour Standard) 3 Designated area Designation Classification Date 1 Type Date 1 Type Chicago-Gary-Lake County Area: Cook County 11/15/1990 Nonattainment 11/15/1990 Severe-17. Du Page County 11/15/1990 Nonattainment 11/15/1990 Severe-17. Grundy County (part) Aux Sable Township 11/15/1990 Nonattainment 11/15/1990 Severe-17. Goose Lake Township 11/15/1990 Nonattainment 11/15/1990 Severe-17. Kane County 11/15/1990 Nonattainment 11/15/1990 Severe-17. Kendall County (part) Oswego Township 11/15/1990 Nonattainment 11/15/1990 Severe-17. Lake County 11/15/1990 Nonattainment 11/15/1990 Severe-17. McHenry County 11/15/1990 Nonattainment 11/15/1990 Severe-17. Will County 11/15/1990 Nonattainment 11/15/1990 Severe-17. Jersey County Area: Jersey County Attainment 2 St. Louis Area: Madison County 5/12/2003 Attainment Monroe County 5/12/2003 Attainment St. Clair County 5/12/2003 Attainment Adams County Unclassifiable/Attainment Alexander County Unclassifiable/Attainment Bond County Unclassifiable/Attainment Boone County Unclassifiable/Attainment Brown County Unclassifiable/Attainment Bureau County Unclassifiable/Attainment Calhoun County Unclassifiable/Attainment Carroll County Unclassifiable/Attainment Cass County Unclassifiable/Attainment Champaign County Unclassifiable/Attainment Christian County Unclassifiable/Attainment Clark County Unclassifiable/Attainment Clay County Unclassifiable/Attainment Clinton County Unclassifiable/Attainment Coles County Unclassifiable/Attainment Crawford County Unclassifiable/Attainment Cumberland County Unclassifiable/Attainment De Kalb County Unclassifiable/Attainment De Witt County Unclassifiable/Attainment Douglas County Unclassifiable/Attainment Edgar County Unclassifiable/Attainment Edwards County Unclassifiable/Attainment Effingham County Unclassifiable/Attainment Fayette County Unclassifiable/Attainment Ford County Unclassifiable/Attainment Franklin County Unclassifiable/Attainment Fulton County Unclassifiable/Attainment Gallatin County Unclassifiable/Attainment Greene County Unclassifiable/Attainment Grundy County (part) All townships except Aux Sable and Goose Lake Unclassifiable/Attainment Hamilton County Unclassifiable/Attainment Hancock County Unclassifiable/Attainment Hardin County Unclassifiable/Attainment Henderson County Unclassifiable/Attainment Henry County Unclassifiable/Attainment Iroquois County Unclassifiable/Attainment Jackson County Unclassifiable/Attainment Jasper County Unclassifiable/Attainment Jefferson County Unclassifiable/Attainment Jo Daviess County Unclassifiable/Attainment Johnson County Unclassifiable/Attainment Kankakee County Unclassifiable/Attainment Kendall County (part) All townships except Oswego Unclassifiable/Attainment Knox County Unclassifiable/Attainment La Salle County Unclassifiable/Attainment Lawrence County Unclassifiable/Attainment Lee County Unclassifiable/Attainment Livingston County Unclassifiable/Attainment Logan County Unclassifiable/Attainment Macon County Unclassifiable/Attainment Macoupin County Unclassifiable/Attainment Marion County Unclassifiable/Attainment Marshall County Unclassifiable/Attainment Mason County Unclassifiable/Attainment Massac County Unclassifiable/Attainment McDonough County Unclassifiable/Attainment McLean County Unclassifiable/Attainment Menard County Unclassifiable/Attainment Mercer County Unclassifiable/Attainment Montgomery County Unclassifiable/Attainment Morgan County Unclassifiable/Attainment Moultrie County Unclassifiable/Attainment Ogle County Unclassifiable/Attainment Peoria County Unclassifiable/Attainment Perry County Unclassifiable/Attainment Piatt County Unclassifiable/Attainment Pike County Unclassifiable/Attainment Pope County Unclassifiable/Attainment Pulaski County Unclassifiable/Attainment Putnam County Unclassifiable/Attainment Randolph County Unclassifiable/Attainment Richland County Unclassifiable/Attainment Rock Island County Unclassifiable/Attainment Saline County Unclassifiable/Attainment Sangamon County Unclassifiable/Attainment Schuyler County Unclassifiable/Attainment Scott County Unclassifiable/Attainment Shelby County Unclassifiable/Attainment Stark County Unclassifiable/Attainment Stephenson County Unclassifiable/Attainment Tazewell County Unclassifiable/Attainment Union County Unclassifiable/Attainment Vermilion County Unclassifiable/Attainment Wabash County Unclassifiable/Attainment Warren County Unclassifiable/Attainment Washington County Unclassifiable/Attainment Wayne County Unclassifiable/Attainment White County Unclassifiable/Attainment Whiteside County Unclassifiable/Attainment Williamson County Unclassifiable/Attainment Winnebago County Unclassifiable/Attainment Woodford County Unclassifiable/Attainment 1 This date is October 18, 2000, unless otherwise noted. 2 April 13, 1995. 3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Illinois. The Jersey Co. and St. Louis areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X. Illinois—PM-10 Designated area Designation Classification Date Type Date Type Cook County a. Lyons Township 11/21/2005 Attainment b. The area bounded on the north by 79th Street, on the west by Interstate 57 between Sibley Boulevard and Interstate 94 and by Interstate 94 between Interstate 57 and 79th Street, on the south by Sibley Boulevard, and on the east by the Illinois/Indiana State line 11/21/2005 Attainment LaSalle County 10/7/1996 Attainment Oglesby including the following Townships, ranges, and sections: T32N, R1E, S1; T32N, R2E, S6; T33N, R1E, S24; T33N, R1E, S25; T33N, R2E, S30; T33N, R2E, S31; and T33N, R1E, S36 Madison County Granite City Township and Nameoki Township 5/11/1998 Attainment Rest of State 11/15/1990 Unclassifiable Illinois—1997 Annual PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date 2 Type Chicago-Gary-Lake County, IL-IN: 10/2/2013 Attainment. Cook County DuPage County Grundy County (part): Goose Lake and Aux Sable Townships Kane County Kendall County (part): Oswego Township Lake County McHenry County Will County St. Louis, MO-IL: Madison County 5/28/2019 Attainment Monroe County 5/28/2019 Attainment Randolph County (part): Baldwin Village 5/28/2019 Attainment St. Clair County 5/28/2019 Attainment Rest of State: Adams County Unclassifiable/Attainment. Alexander County Unclassifiable/Attainment. Bond County Unclassifiable/Attainment. Boone County Unclassifiable/Attainment. Brown County Unclassifiable/Attainment. Bureau County Unclassifiable/Attainment. Calhoun County Unclassifiable/Attainment. Carroll County Unclassifiable/Attainment. Cass County Unclassifiable/Attainment. Champaign County Unclassifiable/Attainment. Christian County Unclassifiable/Attainment. Clark County Unclassifiable/Attainment. Clay County Unclassifiable/Attainment. Clinton County Unclassifiable/Attainment. Coles County Unclassifiable/Attainment. Crawford County Unclassifiable/Attainment. Cumberland County Unclassifiable/Attainment. DeKalb County Unclassifiable/Attainment. De Witt County Unclassifiable/Attainment. Douglas County Unclassifiable/Attainment. Edgar County Unclassifiable/Attainment. Edwards County Unclassifiable/Attainment. Effingham County Unclassifiable/Attainment. Fayette County Unclassifiable/Attainment. Ford County Unclassifiable/Attainment. Franklin County Unclassifiable/Attainment. Fulton County Unclassifiable/Attainment. Gallatin County Unclassifiable/Attainment. Greene County Unclassifiable/Attainment. Grundy County (remainder) Unclassifiable/Attainment. Hamilton County Unclassifiable/Attainment. Hancock County Unclassifiable/Attainment. Hardin County Unclassifiable/Attainment. Henderson County Unclassifiable/Attainment. Henry County Unclassifiable/Attainment. Iroquois County Unclassifiable/Attainment. Jackson County Unclassifiable/Attainment. Jasper County Unclassifiable/Attainment. Jefferson County Unclassifiable/Attainment. Jersey County Unclassifiable/Attainment. Jo Daviess County Unclassifiable/Attainment. Johnson County Unclassifiable/Attainment. Kankakee County Unclassifiable/Attainment. Kendall County (remainder) Unclassifiable/Attainment. Knox County Unclassifiable/Attainment. La Salle County Unclassifiable/Attainment. Lawrence County Unclassifiable/Attainment. Lee County Unclassifiable/Attainment. Livingston County Unclassifiable/Attainment. Logan County Unclassifiable/Attainment. McDonough County Unclassifiable/Attainment. McLean County Unclassifiable/Attainment. Macon County Unclassifiable/Attainment. Macoupin County Unclassifiable/Attainment. Marion County Unclassifiable/Attainment. Marshall County Unclassifiable/Attainment. Mason County Unclassifiable/Attainment. Massac County Unclassifiable/Attainment. Menard County Unclassifiable/Attainment. Mercer County Unclassifiable/Attainment. Montgomery County Unclassifiable/Attainment. Morgan County Unclassifiable/Attainment. Moultrie County Unclassifiable/Attainment. Ogle County Unclassifiable/Attainment. Peoria County Unclassifiable/Attainment. Perry County Unclassifiable/Attainment. Piatt County Unclassifiable/Attainment. Pike County Unclassifiable/Attainment. Pope County Unclassifiable/Attainment. Pulaski County Unclassifiable/Attainment. Putnam County Unclassifiable/Attainment. Randolph County (remainder) Unclassifiable/Attainment. Richland County Unclassifiable/Attainment. Rock Island County Unclassifiable/Attainment. Saline County Unclassifiable/Attainment. Sangamon County Unclassifiable/Attainment. Schuyler County Unclassifiable/Attainment. Scott County Unclassifiable/Attainment. Shelby County Unclassifiable/Attainment. Stark County Unclassifiable/Attainment. Stephenson County Unclassifiable/Attainment. Tazewell County Unclassifiable/Attainment. Union County Unclassifiable/Attainment. Vermilion County Unclassifiable/Attainment. Wabash County Unclassifiable/Attainment. Warren County Unclassifiable/Attainment. Washington County Unclassifiable/Attainment. Wayne County Unclassifiable/Attainment. White County Unclassifiable/Attainment. Whiteside County Unclassifiable/Attainment. Williamson County Unclassifiable/Attainment. Winnebago County Unclassifiable/Attainment. Woodford 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. Illinois—2012 Annual PM 2.5 NAAQS [Primary] Designated area 1 Designation Classification Date 2 Type Date 2 Type Chicago, IL-IN: Cook County Unclassifiable/Attainment. DuPage County Unclassifiable/Attainment. Grundy County (part) Unclassifiable/Attainment. Goose Lake and Aux Sable Townships Unclassifiable/Attainment. Kane County Unclassifiable/Attainment. Kendall County (part) Unclassifiable/Attainment. Oswego Township Unclassifiable/Attainment. Lake County Unclassifiable/Attainment. McHenry County Unclassifiable/Attainment. Will County Unclassifiable/Attainment. Davenport-Moline-Rock Island, IL: Rock Island County Unclassifiable/Attainment. Henry County Unclassifiable/Attainment. Mercer County Unclassifiable/Attainment. St. Louis, MO-IL: Madison County Unclassifiable/Attainment. Monroe County Unclassifiable/Attainment. Randolph County (part) Unclassifiable/Attainment. Baldwin Village Unclassifiable/Attainment. St. Clair County Unclassifiable/Attainment. Rest of State: Adams County Unclassifiable/Attainment. Alexander County Unclassifiable/Attainment. Bond County Unclassifiable/Attainment. Boone County Unclassifiable/Attainment. Brown County Unclassifiable/Attainment. Bureau County Unclassifiable/Attainment. Calhoun County Unclassifiable/Attainment. Carroll County Unclassifiable/Attainment. Cass County Unclassifiable/Attainment. Champaign County Unclassifiable/Attainment. Christian County Unclassifiable/Attainment. Clark County Unclassifiable/Attainment. Clay County Unclassifiable/Attainment. Clinton County Unclassifiable/Attainment. Coles County Unclassifiable/Attainment. Crawford County Unclassifiable/Attainment. Cumberland County Unclassifiable/Attainment. DeKalb County Unclassifiable/Attainment. De Witt County Unclassifiable/Attainment. Douglas County Unclassifiable/Attainment. Edgar County Unclassifiable/Attainment. Edwards County Unclassifiable/Attainment. Effingham County Unclassifiable/Attainment. Fayette County Unclassifiable/Attainment. Ford County Unclassifiable/Attainment. Franklin County Unclassifiable/Attainment. Fulton County Unclassifiable/Attainment. Gallatin County Unclassifiable/Attainment. Greene County Unclassifiable/Attainment. Grundy County (remainder) Unclassifiable/Attainment. Hamilton County Unclassifiable/Attainment. Hancock County Unclassifiable/Attainment. Hardin County Unclassifiable/Attainment. Henderson County Unclassifiable/Attainment. Iroquois County Unclassifiable/Attainment. Jackson County Unclassifiable/Attainment. Jasper County Unclassifiable/Attainment. Jefferson County Unclassifiable/Attainment. Jersey County Unclassifiable/Attainment. Jo Daviess County Unclassifiable/Attainment. Johnson County Unclassifiable/Attainment. Kankakee County Unclassifiable/Attainment. Kendall County (remainder) Unclassifiable/Attainment. Knox County Unclassifiable/Attainment. La Salle County Unclassifiable/Attainment. Lawrence County Unclassifiable/Attainment. Lee County Unclassifiable/Attainment. Livingston County Unclassifiable/Attainment. Logan County Unclassifiable/Attainment. McDonough County Unclassifiable/Attainment. McLean County Unclassifiable/Attainment. Macon County Unclassifiable/Attainment. Macoupin County Unclassifiable/Attainment. Marion County Unclassifiable/Attainment. Marshall County Unclassifiable/Attainment. Mason County Unclassifiable/Attainment. Massac County Unclassifiable/Attainment. Menard County Unclassifiable/Attainment. Montgomery County Unclassifiable/Attainment. Morgan County Unclassifiable/Attainment. Moultrie County Unclassifiable/Attainment. Ogle County Unclassifiable/Attainment. Peoria County Unclassifiable/Attainment. Perry County Unclassifiable/Attainment. Piatt County Unclassifiable/Attainment. Pike County Unclassifiable/Attainment. Pope County Unclassifiable/Attainment. Pulaski County Unclassifiable/Attainment. Putnam County Unclassifiable/Attainment. Randolph County (remainder) Unclassifiable/Attainment. Richland County Unclassifiable/Attainment. Saline County Unclassifiable/Attainment. Sangamon County Unclassifiable/Attainment. Schuyler County Unclassifiable/Attainment. Scott County Unclassifiable/Attainment. Shelby County Unclassifiable/Attainment. Stark County Unclassifiable/Attainment. Stephenson County Unclassifiable/Attainment. Tazewell County Unclassifiable/Attainment. Union County Unclassifiable/Attainment. Vermilion County Unclassifiable/Attainment. Wabash County Unclassifiable/Attainment. Warren County Unclassifiable/Attainment. Washington County Unclassifiable/Attainment. Wayne County Unclassifiable/Attainment. White County Unclassifiable/Attainment. Whiteside County Unclassifiable/Attainment. Williamson County Unclassifiable/Attainment. Winnebago County Unclassifiable/Attainment. Woodford County Unclassifiable/Attainment. 1 Includes Indian Country located in each county or area, except as otherwise specified. 2 This date is January 28, 2019, unless otherwise noted. Illinois—1997 24-Hour PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date Type Statewide: Adams County Unclassifiable/Attainment. Alexander County Unclassifiable/Attainment. Bond County Unclassifiable/Attainment. Boone County Unclassifiable/Attainment. Brown County Unclassifiable/Attainment. Bureau County Unclassifiable/Attainment. Calhoun County Unclassifiable/Attainment. Carroll County Unclassifiable/Attainment. Cass County Unclassifiable/Attainment. Champaign County Unclassifiable/Attainment. Christian County Unclassifiable/Attainment. Clark County Unclassifiable/Attainment. Clay County Unclassifiable/Attainment. Clinton County Unclassifiable/Attainment. Coles County Unclassifiable/Attainment. Cook County Unclassifiable/Attainment. Crawford County Unclassifiable/Attainment. Cumberland County Unclassifiable/Attainment. DeKalb County Unclassifiable/Attainment. De Witt County Unclassifiable/Attainment. Douglas County Unclassifiable/Attainment. DuPage County Unclassifiable/Attainment. Edgar County Unclassifiable/Attainment. Edwards County Unclassifiable/Attainment. Effingham County Unclassifiable/Attainment. Fayette County Unclassifiable/Attainment. Ford County Unclassifiable/Attainment. Franklin County Unclassifiable/Attainment. Fulton County Unclassifiable/Attainment. Gallatin County Unclassifiable/Attainment. Greene County Unclassifiable/Attainment. Grundy County Unclassifiable/Attainment. Hamilton County Unclassifiable/Attainment. Hancock County Unclassifiable/Attainment. Hardin County Unclassifiable/Attainment. Henderson County Unclassifiable/Attainment. Henry County Unclassifiable/Attainment. Iroquois County Unclassifiable/Attainment. Jackson County Unclassifiable/Attainment. Jasper County Unclassifiable/Attainment. Jefferson County Unclassifiable/Attainment. Jersey County Unclassifiable/Attainment. Jo Daviess County Unclassifiable/Attainment. Johnson County Unclassifiable/Attainment. Kane County Unclassifiable/Attainment. Kankakee County Unclassifiable/Attainment. Kendall County Unclassifiable/Attainment. Knox County Unclassifiable/Attainment. La Salle County Unclassifiable/Attainment. Lake County Unclassifiable/Attainment. Lawrence County Unclassifiable/Attainment. Lee County Unclassifiable/Attainment. Livingston County Unclassifiable/Attainment. Logan County Unclassifiable/Attainment. McDonough County Unclassifiable/Attainment. McHenry County Unclassifiable/Attainment. McLean County Unclassifiable/Attainment. Macon County Unclassifiable/Attainment. Macoupin County Unclassifiable/Attainment. Madison County Unclassifiable/Attainment. Marion County Unclassifiable/Attainment. Marshall County Unclassifiable/Attainment. Mason County Unclassifiable/Attainment. Massac County Unclassifiable/Attainment. Menard County Unclassifiable/Attainment. Mercer County Unclassifiable/Attainment. Monroe County Unclassifiable/Attainment. Montgomery County Unclassifiable/Attainment. Morgan County Unclassifiable/Attainment. Moultrie County Unclassifiable/Attainment. Ogle County Unclassifiable/Attainment. Peoria County Unclassifiable/Attainment. Perry County Unclassifiable/Attainment. Piatt County Unclassifiable/Attainment. Pike County Unclassifiable/Attainment. Pope County Unclassifiable/Attainment. Pulaski County Unclassifiable/Attainment. Putnam County Unclassifiable/Attainment. Randolph County Unclassifiable/Attainment. Richland County Unclassifiable/Attainment. Rock Island County Unclassifiable/Attainment. St. Clair County Unclassifiable/Attainment. Saline County Unclassifiable/Attainment. Sangamon County Unclassifiable/Attainment. Schuyler County Unclassifiable/Attainment. Scott County Unclassifiable/Attainment. Shelby County Unclassifiable/Attainment. Stark County Unclassifiable/Attainment. Stephenson County Unclassifiable/Attainment. Tazewell County Unclassifiable/Attainment. Union County Unclassifiable/Attainment. Vermilion County Unclassifiable/Attainment. Wabash County Unclassifiable/Attainment. Warren County Unclassifiable/Attainment. Washington County Unclassifiable/Attainment. Wayne County Unclassifiable/Attainment. White County Unclassifiable/Attainment. Whiteside County Unclassifiable/Attainment. Will County Unclassifiable/Attainment. Williamson County Unclassifiable/Attainment. Winnebago County Unclassifiable/Attainment. Woodford 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. Illinois—2006 24-Hour PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date Type Statewide: Adams County Unclassifiable/Attainment Alexander County Unclassifiable/Attainment Bond County Unclassifiable/Attainment Boone County Unclassifiable/Attainment Brown County Unclassifiable/Attainment Bureau County Unclassifiable/Attainment Calhoun County Unclassifiable/Attainment Carroll County Unclassifiable/Attainment Cass County Unclassifiable/Attainment Champaign County Unclassifiable/Attainment Christian County Unclassifiable/Attainment Clark County Unclassifiable/Attainment Clay County Unclassifiable/Attainment Clinton County Unclassifiable/Attainment Coles County Unclassifiable/Attainment Cook County Unclassifiable/Attainment Crawford County Unclassifiable/Attainment Cumberland County Unclassifiable/Attainment DeKalb County Unclassifiable/Attainment De Witt County Unclassifiable/Attainment Douglas County Unclassifiable/Attainment DuPage County Unclassifiable/Attainment Edgar County Unclassifiable/Attainment Edwards County Unclassifiable/Attainment Effingham County Unclassifiable/Attainment Fayette County Unclassifiable/Attainment Ford County Unclassifiable/Attainment Franklin County Unclassifiable/Attainment Fulton County Unclassifiable/Attainment Gallatin County Unclassifiable/Attainment Greene County Unclassifiable/Attainment Grundy County Unclassifiable/Attainment Hamilton County Unclassifiable/Attainment Hancock County Unclassifiable/Attainment Hardin County Unclassifiable/Attainment Henderson County Unclassifiable/Attainment Henry County Unclassifiable/Attainment Iroquois County Unclassifiable/Attainment Jackson County Unclassifiable/Attainment Jasper County Unclassifiable/Attainment Jefferson County Unclassifiable/Attainment Jersey County Unclassifiable/Attainment Jo Daviess County Unclassifiable/Attainment Johnson County Unclassifiable/Attainment Kane County Unclassifiable/Attainment Kankakee County Unclassifiable/Attainment Kendall County Unclassifiable/Attainment Knox County Unclassifiable/Attainment La Salle County Unclassifiable/Attainment Lake County Unclassifiable/Attainment Lawrence County Unclassifiable/Attainment Lee County Unclassifiable/Attainment Livingston County Unclassifiable/Attainment Logan County Unclassifiable/Attainment McDonough County Unclassifiable/Attainment McHenry County Unclassifiable/Attainment McLean County Unclassifiable/Attainment Macon County Unclassifiable/Attainment Macoupin County Unclassifiable/Attainment Madison County Unclassifiable/Attainment Marion County Unclassifiable/Attainment Marshall County Unclassifiable/Attainment Mason County Unclassifiable/Attainment Massac County Unclassifiable/Attainment Menard County Unclassifiable/Attainment Mercer County Unclassifiable/Attainment Monroe County Unclassifiable/Attainment Montgomery County Unclassifiable/Attainment Morgan County Unclassifiable/Attainment Moultrie County Unclassifiable/Attainment Ogle County Unclassifiable/Attainment Peoria County Unclassifiable/Attainment Perry County Unclassifiable/Attainment Piatt County Unclassifiable/Attainment Pike County Unclassifiable/Attainment Pope County Unclassifiable/Attainment Pulaski County Unclassifiable/Attainment Putnam County Unclassifiable/Attainment Randolph County Unclassifiable/Attainment Richland County Unclassifiable/Attainment Rock Island County Unclassifiable/Attainment St. Clair County Unclassifiable/Attainment Saline County Unclassifiable/Attainment Sangamon County Unclassifiable/Attainment Schuyler County Unclassifiable/Attainment Scott County Unclassifiable/Attainment Shelby County Unclassifiable/Attainment Stark County Unclassifiable/Attainment Stephenson County Unclassifiable/Attainment Tazewell County Unclassifiable/Attainment Union County Unclassifiable/Attainment Vermilion County Unclassifiable/Attainment Wabash County Unclassifiable/Attainment Warren County Unclassifiable/Attainment Washington County Unclassifiable/Attainment Wayne County Unclassifiable/Attainment White County Unclassifiable/Attainment Whiteside County Unclassifiable/Attainment Will County Unclassifiable/Attainment Williamson County Unclassifiable/Attainment Winnebago County Unclassifiable/Attainment Woodford 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. Illinois—NO 2 (1971 Annual Standard) Designated area Does not meet primary standards Cannot be classified or better than national standards AQCR 65: Fulton County X Hancock County X Henderson County X Knox County X McDonough County X Mason County X Peoria County X Tazewell County X Warren County X Woodford County X Lee County X AQCR 66: Champaign County X Clark County X Coles County X Cumberland County X De Witt County X Douglas County X Edgar County X Ford County X Iroquois County X Livingston County X McLean County X Moultrie County X Piatt County X Shelby County X Vermilion County X AQCR 67: Cook County X Du Page County X Grundy County X Kane County X Kankakee County X Kendall County X Lake County X McHenry County X Will County X AQCR 68: Jo Daviess County X AQCR 69: Carroll County X Henry County X Mercer County X Rock Island County X Whiteside County X AQCR 70: Bond County X Clinton County X Madison County X Monroe County X Randolph County X St. Clair County X Washington County X AQCR 71: Bureau County X La Salle County X Lee County X Marshall County X Putnam County X Stark County X AQCR 72: Alexander County X Johnson County X Massac County X Pope County X Pulaski County X Union County X AQCR 73: Boone County X De Kalb County X Ogle County X Stephenson County X Winnebago County X AQCR 74: Clay County X Crawford County X Edwards County X Effingham County X Fayette County X Franklin County X Gallatin County X Hamilton County X Hardin County X Jackson County X Jasper County X Jefferson County X Lawrence County X Marion County X Perry County X Richland County X Saline County X Wabash County X Wayne County X White County X Williamson County X AQCR 75: Adams County X Brown County X Calhoun County X Cass County X Christian County X Greene County X Jersey County X Logan County X Macon County X Macoupin County X Menard County X Montgomery County X Morgan County X Pike County X Sangamon County X Schuyler County X Scott County X Illinois—NO 2 (2010 1-Hour Standard) Designated area Designation a Date 1 Type Adams County Unclassifiable/Attainment. Alexander County Unclassifiable/Attainment. Bond County Unclassifiable/Attainment. Boone County Unclassifiable/Attainment. Brown County Unclassifiable/Attainment. Bureau County Unclassifiable/Attainment. Calhoun County Unclassifiable/Attainment. Carroll County Unclassifiable/Attainment. Cass County Unclassifiable/Attainment. Champaign County Unclassifiable/Attainment. Christian County Unclassifiable/Attainment. Clark County Unclassifiable/Attainment. Clay County Unclassifiable/Attainment. Clinton County Unclassifiable/Attainment. Coles County Unclassifiable/Attainment. Cook County Unclassifiable/Attainment. Crawford County Unclassifiable/Attainment. Cumberland County Unclassifiable/Attainment. DeKalb County Unclassifiable/Attainment. De Witt County Unclassifiable/Attainment. Douglas County Unclassifiable/Attainment. DuPage County Unclassifiable/Attainment. Edgar County Unclassifiable/Attainment. Edwards County Unclassifiable/Attainment. Effingham County Unclassifiable/Attainment. Fayette County Unclassifiable/Attainment. Ford County Unclassifiable/Attainment. Franklin County Unclassifiable/Attainment. Fulton County Unclassifiable/Attainment. Gallatin County Unclassifiable/Attainment. Greene County Unclassifiable/Attainment. Grundy County Unclassifiable/Attainment. Hamilton County Unclassifiable/Attainment. Hancock County Unclassifiable/Attainment. Hardin County Unclassifiable/Attainment. Henderson County Unclassifiable/Attainment. Henry County Unclassifiable/Attainment. Iroquois County Unclassifiable/Attainment. Jackson County Unclassifiable/Attainment. Jasper County Unclassifiable/Attainment. Jefferson County Unclassifiable/Attainment. Jersey County Unclassifiable/Attainment. Jo Daviess County Unclassifiable/Attainment. Johnson County Unclassifiable/Attainment. Kane County Unclassifiable/Attainment. Kankakee County Unclassifiable/Attainment. Kendall County Unclassifiable/Attainment. Knox County Unclassifiable/Attainment. La Salle County Unclassifiable/Attainment. Lake County Unclassifiable/Attainment. Lawrence County Unclassifiable/Attainment. Lee County Unclassifiable/Attainment. Livingston County Unclassifiable/Attainment. Logan County Unclassifiable/Attainment. Madison County Unclassifiable/Attainment. McDonough County Unclassifiable/Attainment. McLean County Unclassifiable/Attainment. Macon County Unclassifiable/Attainment. Macoupin County Unclassifiable/Attainment. Marion County Unclassifiable/Attainment. Marshall County Unclassifiable/Attainment. Mason County Unclassifiable/Attainment. Massac County Unclassifiable/Attainment. McHenry County Unclassifiable/Attainment. Menard County Unclassifiable/Attainment. Mercer County Unclassifiable/Attainment. Monroe County Unclassifiable/Attainment. Montgomery County Unclassifiable/Attainment. Morgan County Unclassifiable/Attainment. Moultrie County Unclassifiable/Attainment. Ogle County Unclassifiable/Attainment. Peoria County Unclassifiable/Attainment. Perry County Unclassifiable/Attainment. Piatt County Unclassifiable/Attainment. Pike County Unclassifiable/Attainment. Pope County Unclassifiable/Attainment. Pulaski County Unclassifiable/Attainment. Putnam County Unclassifiable/Attainment. Randolph County Unclassifiable/Attainment. Richland County Unclassifiable/Attainment. Rock Island County Unclassifiable/Attainment. St. Clair County Unclassifiable/Attainment. Saline County Unclassifiable/Attainment. Sangamon County Unclassifiable/Attainment. Schuyler County Unclassifiable/Attainment. Scott County Unclassifiable/Attainment. Shelby County Unclassifiable/Attainment. Stark County Unclassifiable/Attainment. Stephenson County Unclassifiable/Attainment. Tazewell County Unclassifiable/Attainment. Union County Unclassifiable/Attainment. Vermilion County Unclassifiable/Attainment. Wabash County Unclassifiable/Attainment. Warren County Unclassifiable/Attainment. Washington County Unclassifiable/Attainment. Wayne County Unclassifiable/Attainment. White County Unclassifiable/Attainment. Whiteside County Unclassifiable/Attainment. Will County Unclassifiable/Attainment. Williamson County Unclassifiable/Attainment. Winnebago County Unclassifiable/Attainment. Woodford 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. Illinois—1997 8-Hour Ozone NAAQS [Primary and Secondary] Designated area Designation a Category/classification Date 1 Type Date 1 Type Chicago-Gary-Lake County, IL-IN: Cook County 8/13/2012 DuPage County Attainment Grundy County (part) Aux Sable Township Goose Lake Township Kane County Kendall County (part) Oswego Township Lake County McHenry County Will County St. Louis, MO-IL: Jersey County 6/12/2012 Attainment Madison County 6/12/2012 Attainment Monroe County 6/12/2012 Attainment St. Clair County 6/12/2012 Attainment Rest of State Adams County Unclassifiable/Attainment Alexander County Unclassifiable/Attainment Bond County Unclassifiable/Attainment Boone County Unclassifiable/Attainment Brown County Unclassifiable/Attainment Bureau County Unclassifiable/Attainment Calhoun County Unclassifiable/Attainment Carroll County Unclassifiable/Attainment Cass County Unclassifiable/Attainment Champaign County Unclassifiable/Attainment Christian County Unclassifiable/Attainment Clark County Unclassifiable/Attainment Clay County Unclassifiable/Attainment Clinton County Unclassifiable/Attainment Coles County Unclassifiable/Attainment Crawford County Unclassifiable/Attainment Cumberland County Unclassifiable/Attainment De Witt County Unclassifiable/Attainment DeKalb County Unclassifiable/Attainment Douglas County Unclassifiable/Attainment Edgar County Unclassifiable/Attainment Edwards County Unclassifiable/Attainment Effingham County Unclassifiable/Attainment Fayette County Unclassifiable/Attainment Ford County Unclassifiable/Attainment Franklin County Unclassifiable/Attainment Fulton County Unclassifiable/Attainment Gallatin County Unclassifiable/Attainment Greene County Unclassifiable/Attainment Grundy County (part) Unclassifiable/Attainment All townships except Aux Sable and Goose Lake. Hamilton County Unclassifiable/Attainment Hancock County Unclassifiable/Attainment Hardin County Unclassifiable/Attainment Henderson County Unclassifiable/Attainment Henry County Unclassifiable/Attainment Iroquois County Unclassifiable/Attainment Jackson County Unclassifiable/Attainment Jasper County Unclassifiable/Attainment Jefferson County Unclassifiable/Attainment Jo Daviess County Unclassifiable/Attainment Johnson County Unclassifiable/Attainment Kankakee County Unclassifiable/Attainment Kendall County (part) Unclassifiable/Attainment All townships except Oswego Knox County Unclassifiable/Attainment La Salle County Unclassifiable/Attainment Lawrence County Unclassifiable/Attainment Lee County Unclassifiable/Attainment Livingston County Unclassifiable/Attainment Logan County Unclassifiable/Attainment Macon County Unclassifiable/Attainment Macoupin County Unclassifiable/Attainment Marion County Unclassifiable/Attainment Marshall County Unclassifiable/Attainment Mason County Unclassifiable/Attainment Massac County Unclassifiable/Attainment McDonough County Unclassifiable/Attainment McLean County Unclassifiable/Attainment Menard County Unclassifiable/Attainment Mercer County Unclassifiable/Attainment Montgomery County Unclassifiable/Attainment Morgan County Unclassifiable/Attainment Moultrie County Unclassifiable/Attainment Ogle County Unclassifiable/Attainment Peoria County Unclassifiable/Attainment Perry County Unclassifiable/Attainment Piatt County Unclassifiable/Attainment Pike County Unclassifiable/Attainment Pope County Unclassifiable/Attainment Pulaski County Unclassifiable/Attainment Putnam County Unclassifiable/Attainment Randolph County Unclassifiable/Attainment Richland County Unclassifiable/Attainment Rock Island County Unclassifiable/Attainment Saline County Unclassifiable/Attainment Sangamon County Unclassifiable/Attainment Schuyler County Unclassifiable/Attainment Scott County Unclassifiable/Attainment Shelby County Unclassifiable/Attainment Stark County Unclassifiable/Attainment Stephenson County Unclassifiable/Attainment Tazewell County Unclassifiable/Attainment Union County Unclassifiable/Attainment Vermilion County Unclassifiable/Attainment Wabash County Unclassifiable/Attainment Warren County Unclassifiable/Attainment Washington County Unclassifiable/Attainment Wayne County Unclassifiable/Attainment White County Unclassifiable/Attainment Whiteside County Unclassifiable/Attainment Williamson County Unclassifiable/Attainment Winnebago County Unclassifiable/Attainment Woodford County Unclassifiable/Attainment a Includes Indian Country located in each county or area, except as otherwise specified. 1 This date is June 15, 2004, unless otherwise noted. Illinois—2008 8-Hour Ozone NAAQS [Primary and Secondary] Designated area Designation Classification Date 1 Type Date 1 Type Chicago-Naperville, IL-IN-WI 2 May 20, 2022. Attainment Serious. Cook County. DuPage County. Grundy County (part): Aux Sable Township. Goose Lake Township. Kane County. Kendall County (part): Oswego Township. Lake County. McHenry County. Will County. St. Louis-St. Charles-Farmington, MO-IL: 2 Madison County, Monroe County, St. Clair County 3/1/2018 Attainment Adams County 3 Unclassifiable/Attainment Alexander County 3 Unclassifiable/Attainment Bond County 3 Unclassifiable/Attainment Boone County 3 Unclassifiable/Attainment Brown County 3 Unclassifiable/Attainment Bureau County 3 Unclassifiable/Attainment Calhoun County 3 Unclassifiable/Attainment Carroll County 3 Unclassifiable/Attainment Cass County 3 Unclassifiable/Attainment Champaign County 3 Unclassifiable/Attainment Christian County 3 Unclassifiable/Attainment Clark County 3 Unclassifiable/Attainment Clay County 3 Unclassifiable/Attainment Clinton County 3 Unclassifiable/Attainment Coles County 3 Unclassifiable/Attainment Crawford County 3 Unclassifiable/Attainment Cumberland County 3 Unclassifiable/Attainment DeKalb County 3 Unclassifiable/Attainment De Witt County 3 Unclassifiable/Attainment Douglas County 3 Unclassifiable/Attainment Edgar County 3 Unclassifiable/Attainment Edwards County 3 Unclassifiable/Attainment Effingham County 3 Unclassifiable/Attainment Fayette County 3 Unclassifiable/Attainment Ford County 3 Unclassifiable/Attainment Franklin County 3 Unclassifiable/Attainment Fulton County 3 Unclassifiable/Attainment Gallatin County 3 Unclassifiable/Attainment Greene County 3 Unclassifiable/Attainment Grundy County (remainder) 3 Unclassifiable/Attainment Hamilton County 3 Unclassifiable/Attainment Hancock County 3 Unclassifiable/Attainment Hardin County 3 Unclassifiable/Attainment Henderson County 3 Unclassifiable/Attainment Henry County 3 Unclassifiable/Attainment Iroquois County 3 Unclassifiable/Attainment Jackson County 3 Unclassifiable/Attainment Jasper County 3 Unclassifiable/Attainment Jefferson County 3 Unclassifiable/Attainment Jersey County 3 Unclassifiable/Attainment Jo Daviess County 3 Unclassifiable/Attainment Johnson County 3 Unclassifiable/Attainment Kankakee County 3 Unclassifiable/Attainment Kendall County (remainder) Unclassifiable/Attainment Knox County 3 Unclassifiable/Attainment La Salle County 3 Unclassifiable/Attainment Lawrence County 3 Unclassifiable/Attainment Lee County 3 Unclassifiable/Attainment Livingston County 3 Unclassifiable/Attainment Logan County 3 Unclassifiable/Attainment McDonough County 3 Unclassifiable/Attainment McLean County 3 Unclassifiable/Attainment Macon County 3 Unclassifiable/Attainment Macoupin County 3 Unclassifiable/Attainment Marion County 3 Unclassifiable/Attainment Marshall County 3 Unclassifiable/Attainment Mason County 3 Unclassifiable/Attainment Massac County 3 Unclassifiable/Attainment Menard County 3 Unclassifiable/Attainment Mercer County 3 Unclassifiable/Attainment Montgomery County 3 Unclassifiable/Attainment Morgan County 3 Unclassifiable/Attainment Moultrie County 3 Unclassifiable/Attainment Ogle County 3 Unclassifiable/Attainment Peoria County 3 Unclassifiable/Attainment Perry County 3 Unclassifiable/Attainment Piatt County 3 Unclassifiable/Attainment Pike County 3 Unclassifiable/Attainment Pope County 3 Unclassifiable/Attainment Pulaski County 3 Unclassifiable/Attainment Putnam County 3 Unclassifiable/Attainment Randolph County 3 Unclassifiable/Attainment Richland County 3 Unclassifiable/Attainment Rock Island County 3 Unclassifiable/Attainment Saline County 3 Unclassifiable/Attainment Sangamon County 3 Unclassifiable/Attainment Schuyler County 3 Unclassifiable/Attainment Scott County 3 Unclassifiable/Attainment Shelby County 3 Unclassifiable/Attainment Stark County 3 Unclassifiable/Attainment Stephenson County 3 Unclassifiable/Attainment Tazewell County 3 Unclassifiable/Attainment Union County 3 Unclassifiable/Attainment Vermilion County 3 Unclassifiable/Attainment Wabash County 3 Unclassifiable/Attainment Warren County 3 Unclassifiable/Attainment Washington County 3 Unclassifiable/Attainment Wayne County 3 Unclassifiable/Attainment White County 3 Unclassifiable/Attainment Whiteside County 3 Unclassifiable/Attainment Williamson County 3 Unclassifiable/Attainment Winnebago County 3 Unclassifiable/Attainment Woodford County 3 Unclassifiable/Attainment 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. Illinois—2015 8-Hour Ozone NAAQS [Primary and Secondary] Designated area 1 Designation Classification Date 2 Type Date 2 Type Chicago, IL-IN-WI: 3 7/14/2021 Nonattainment 1/16/2025 Serious. Cook County. DuPage County. Grundy County (part): Aux Sable Township and Goose Lake Township. Kane County. Kendall County (part): Oswego Township. Lake County. McHenry County. Will County. St. Louis, MO-IL: Madison County. Monroe County July 14, 2021. 3 St. Clair County. Adams County 1/16/2018 Attainment/Unclassifiable Alexander County 1/16/2018 Attainment/Unclassifiable Bond County Attainment/Unclassifiable Boone County 1/16/2018 Attainment/Unclassifiable Brown County 1/16/2018 Attainment/Unclassifiable Bureau County Attainment/Unclassifiable Calhoun County Attainment/Unclassifiable Carroll County 1/16/2018 Attainment/Unclassifiable Cass County 1/16/2018 Attainment/Unclassifiable Champaign 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 Attainment/Unclassifiable Coles County 1/16/2018 Attainment/Unclassifiable Crawford County 1/16/2018 Attainment/Unclassifiable Cumberland County 1/16/2018 Attainment/Unclassifiable De Kalb County Attainment/Unclassifiable De Witt County 1/16/2018 Attainment/Unclassifiable Douglas County 1/16/2018 Attainment/Unclassifiable Edgar County 1/16/2018 Attainment/Unclassifiable Edwards County 1/16/2018 Attainment/Unclassifiable Effingham County 1/16/2018 Attainment/Unclassifiable Fayette County 1/16/2018 Attainment/Unclassifiable Ford County 1/16/2018 Attainment/Unclassifiable Franklin County 1/16/2018 Attainment/Unclassifiable Fulton County 1/16/2018 Attainment/Unclassifiable Gallatin County 1/16/2018 Attainment/Unclassifiable Greene County 1/16/2018 Attainment/Unclassifiable Grundy County (part) remainder Attainment/Unclassifiable Hamilton County 1/16/2018 Attainment/Unclassifiable Hancock County 1/16/2018 Attainment/Unclassifiable Hardin County 1/16/2018 Attainment/Unclassifiable Henderson County 1/16/2018 Attainment/Unclassifiable Henry County 1/16/2018 Attainment/Unclassifiable Iroquois County 1/16/2018 Attainment/Unclassifiable Jackson County 1/16/2018 Attainment/Unclassifiable Jasper County 1/16/2018 Attainment/Unclassifiable Jefferson County 1/16/2018 Attainment/Unclassifiable Jersey County Attainment/Unclassifiable Jo Daviess County 1/16/2018 Attainment/Unclassifiable Johnson County 1/16/2018 Attainment/Unclassifiable Kankakee County Attainment/Unclassifiable Kendall County (part) remainder Attainment/Unclassifiable Knox County 1/16/2018 Attainment/Unclassifiable La Salle County Attainment/Unclassifiable Lawrence County 1/16/2018 Attainment/Unclassifiable Lee County 1/16/2018 Attainment/Unclassifiable Livingston County 1/16/2018 Attainment/Unclassifiable Logan County 1/16/2018 Attainment/Unclassifiable Macon County 1/16/2018 Attainment/Unclassifiable Macoupin County Attainment/Unclassifiable Marion County Attainment/Unclassifiable Marshall County 1/16/2018 Attainment/Unclassifiable Mason County 1/16/2018 Attainment/Unclassifiable Massac County 1/16/2018 Attainment/Unclassifiable McDonough County 1/16/2018 Attainment/Unclassifiable McLean County 1/16/2018 Attainment/Unclassifiable Menard County 1/16/2018 Attainment/Unclassifiable Mercer County 1/16/2018 Attainment/Unclassifiable Montgomery County 1/16/2018 Attainment/Unclassifiable Morgan County 1/16/2018 Attainment/Unclassifiable Moultrie County 1/16/2018 Attainment/Unclassifiable Ogle County 1/16/2018 Attainment/Unclassifiable Peoria County 1/16/2018 Attainment/Unclassifiable Perry County 1/16/2018 Attainment/Unclassifiable Piatt County 1/16/2018 Attainment/Unclassifiable Pike County 1/16/2018 Attainment/Unclassifiable Pope County 1/16/2018 Attainment/Unclassifiable Pulaski County 1/16/2018 Attainment/Unclassifiable Putnam County Attainment/Unclassifiable Randolph County 1/16/2018 Attainment/Unclassifiable Richland County 1/16/2018 Attainment/Unclassifiable Rock Island County 1/16/2018 Attainment/Unclassifiable Saline County 1/16/2018 Attainment/Unclassifiable Sangamon County 1/16/2018 Attainment/Unclassifiable Schuyler County 1/16/2018 Attainment/Unclassifiable Scott County 1/16/2018 Attainment/Unclassifiable Shelby County 1/16/2018 Attainment/Unclassifiable Stark County 1/16/2018 Attainment/Unclassifiable Stephenson County 1/16/2018 Attainment/Unclassifiable Tazewell County 1/16/2018 Attainment/Unclassifiable Union County 1/16/2018 Attainment/Unclassifiable Vermilion County 1/16/2018 Attainment/Unclassifiable Wabash County 1/16/2018 Attainment/Unclassifiable Warren County 1/16/2018 Attainment/Unclassifiable Washington County 1/16/2018 Attainment/Unclassifiable Wayne County 1/16/2018 Attainment/Unclassifiable White County 1/16/2018 Attainment/Unclassifiable Whiteside County 1/16/2018 Attainment/Unclassifiable Williamson County 1/16/2018 Attainment/Unclassifiable Winnebago County 1/16/2018 Attainment/Unclassifiable Woodford 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. Illinois—2008 Lead NAAQS Designated area Designation for the 2008 NAAQS a Date 1 Type Chicago, IL: Cook County (part) 3/28/2018 Attainment. Area bounded by Damen Ave. on the west, Roosevelt Rd. on the north, the Dan Ryan Expressway on the east, and the Stevenson Expressway on the south Granite City, IL: Madison County (part) 3/28/2018 Attainment. Area is bounded by Granite City Township and Venice Township 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 § 81.314, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.