1. Regulations
  2. title 40
  3. chapter I-i19
  4. part 81
  5. subpart C
  6. § 81.314

View all text of Subpart C [§ 81.300 - § 81.356]

§ 81.314 - Illinois.

Illinois—TSP

Designated area Does not meet primary Does not meet secondary Cannot be classified Better than national standards Cook County: a. Lyons TownshipXX 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 lineXX 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, S36XX 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, S36X Madison County: Granite City Township and Nameoki TownshipXX All other portions of Illinois countiesX

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 CountyX Hancock CountyX Henderson CountyX Knox CountyX McDonough CountyX Mason CountyX Peoria CountyX Tazewell CountyX Warren CountyX Woodford CountyX Lee CountyX AQCR 66: Champaign CountyX Clark CountyX Coles CountyX Cumberland CountyX De Witt CountyX Douglas CountyX Edgar CountyX Ford CountyX Iroquois CountyX Livingston CountyX McLean CountyX Moultrie CountyX Platt CountyX Shelby CountyX Vermilion CountyX AQCR 67: Cook County: Bremer TwpX Calumet TwpX Thornton TwpX Worth TwpX All other Cook County twpsX Will County: Channahon TwpX Du Page TwpX Joliet TwpX Lockport TwpX Troy TwpX All other Will County twpsX Du Page CountyX Grundy CountyX Kane CountyX Kankakee CountyX Kendall CountyX Lake CountyX McHenry CountyX AQCR 68: Jo Daviess CountyX AQCR 69: Carroll CountyX Henry CountyX Mercer CountyX Rock Island CountyX Whiteside CountyX AQCR 70: Madison County: Wood River TwpX Alton TwpX All other Madison twpsX Bond CountyX Clinton CountyX Monroe CountyX Randolph CountyX St. Clair CountyX Washington CountyX AQCR 71: Bureau County: Shelby TwpX All other Bureau twpsX La Salle CountyX Lee CountyX Marshall CountyX Putnam CountyX Stark CountyX AQCR 72: Massac CountyX Alexander CountyX Johnson CountyX Pope CountyX Pulaski CountyX Union CountyX AQCR 73 Boone CountyX De Kalb CountyX Ogle CountyX StephensonX Winnebago CountyX AQCR 74: Clay CountyX Crawford CountyX Edwards CountyX Effingham CountyX Fayette CountyX Franklin CountyX Gallatin CountyX Hamilton CountyX Hardin CountyX Jackson CountyX Jasper CountyX Jefferson CountyX Lawrence CountyX Marion CountyX Perry CountyX Richland CountyX Saline CountyX Wabash CountyX Wayne CountyX White CountyX Williamson CountyX AQCR 75: Christian County: South Fork TwpX All other twpsX Sangamon County: Capital TwpX Cooper TwpX Cotton Hill TwpX Rochester TwpX Woodside TwpX All other twpsX Adams CountyX Brown CountyX Calhoun CountyX Cass CountyX Greene CountyX Jersey CountyX Logan CountyX Macon CountyX Nacoupin CountyX Menard CountyX Montgomery CountyX Morgan CountyX Pike CountyX Schuyler CountyX Scott CountyX

Illinois—2010 Sulfur Dioxide NAAQS

[Primary]

Designated area 1Designation Date 2Type Alton Township, IL9/12/2016Nonattainment. 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, IL5/26/2020Attainment. Cook County (part) Lemont Township Will County (part) DuPage Township and Lockport Township Pekin, IL5/26/2020Attainment. Tazewell County (part) Cincinnati Township and Pekin Township Peoria County (part) Hollis Township Rest of State: Adams CountyAttainment/Unclassifiable. Alexander CountyAttainment/Unclassifiable. Bond CountyAttainment/Unclassifiable. Boone CountyAttainment/Unclassifiable. Brown CountyAttainment/Unclassifiable. Bureau County9/12/2016Attainment/Unclassifiable. Calhoun CountyAttainment/Unclassifiable. Carroll CountyAttainment/Unclassifiable. Cass CountyAttainment/Unclassifiable. Champaign CountyAttainment/Unclassifiable. Christian CountyAttainment/Unclassifiable. Clark CountyAttainment/Unclassifiable. Clay CountyAttainment/Unclassifiable. Clinton CountyAttainment/Unclassifiable. Coles CountyAttainment/Unclassifiable. Cook County (part) (remainder)Attainment/Unclassifiable. Crawford CountyAttainment/Unclassifiable. Cumberland CountyAttainment/Unclassifiable. De Kalb CountyAttainment/Unclassifiable. De Witt CountyAttainment/Unclassifiable. Douglas CountyAttainment/Unclassifiable. Du Page CountyAttainment/Unclassifiable. Edgar CountyAttainment/Unclassifiable. Edwards CountyAttainment/Unclassifiable. Effingham CountyAttainment/Unclassifiable. Fayette CountyAttainment/Unclassifiable. Ford CountyAttainment/Unclassifiable. Franklin CountyAttainment/Unclassifiable. Fulton CountyAttainment/Unclassifiable. Gallatin CountyAttainment/Unclassifiable. Greene CountyAttainment/Unclassifiable. Grundy CountyAttainment/Unclassifiable. Hamilton CountyAttainment/Unclassifiable. Hancock CountyAttainment/Unclassifiable. Hardin CountyAttainment/Unclassifiable. Henderson CountyAttainment/Unclassifiable. Henry CountyAttainment/Unclassifiable. Iroquois CountyAttainment/Unclassifiable. Jackson CountyAttainment/Unclassifiable. Jasper County9/12/2016Attainment/Unclassifiable. Jefferson CountyAttainment/Unclassifiable. Jersey CountyAttainment/Unclassifiable. Jo Daviess CountyAttainment/Unclassifiable. Johnson CountyAttainment/Unclassifiable. Kane CountyAttainment/Unclassifiable. Kankakee CountyAttainment/Unclassifiable. Kendall CountyAttainment/Unclassifiable. Knox CountyAttainment/Unclassifiable. Lake CountyAttainment/Unclassifiable. La Salle CountyAttainment/Unclassifiable. Lawrence CountyAttainment/Unclassifiable. Lee CountyAttainment/Unclassifiable. Livingston CountyAttainment/Unclassifiable. Logan CountyAttainment/Unclassifiable. McDonough CountyAttainment/Unclassifiable. McHenry CountyAttainment/Unclassifiable. McLean CountyAttainment/Unclassifiable. Macon County4/30/2021Attainment/Unclassifiable. Macoupin CountyAttainment/Unclassifiable. Madison County (part) (remainder) 4Attainment/Unclassifiable. Marion CountyAttainment/Unclassifiable. Marshall CountyAttainment/Unclassifiable. Mason CountyAttainment/Unclassifiable. Massac County9/12/2016Attainment/Unclassifiable. Menard CountyAttainment/Unclassifiable. Mercer CountyAttainment/Unclassifiable. Monroe CountyAttainment/Unclassifiable. Montgomery CountyAttainment/Unclassifiable. Morgan CountyAttainment/Unclassifiable. Moultrie CountyAttainment/Unclassifiable. Ogle CountyAttainment/Unclassifiable. Peoria County (part) (remainder)Attainment/Unclassifiable. Perry CountyAttainment/Unclassifiable. Piatt CountyAttainment/Unclassifiable. Pike CountyAttainment/Unclassifiable. Pope CountyAttainment/Unclassifiable. Pulaski CountyAttainment/Unclassifiable. Putnam County9/12/2016Attainment/Unclassifiable. Randolph CountyAttainment/Unclassifiable. Richland CountyAttainment/Unclassifiable. Rock Island CountyAttainment/Unclassifiable. St. Clair CountyAttainment/Unclassifiable. Saline CountyAttainment/Unclassifiable. Sangamon CountyAttainment/Unclassifiable. Schuyler CountyAttainment/Unclassifiable. Scott CountyAttainment/Unclassifiable. Shelby CountyAttainment/Unclassifiable. Stark CountyAttainment/Unclassifiable. Stephenson CountyAttainment/Unclassifiable. Tazewell County (part) (remainder)Attainment/Unclassifiable. Union CountyAttainment/Unclassifiable. Vermilion CountyAttainment/Unclassifiable. Wabash CountyAttainment/Unclassifiable. Warren CountyAttainment/Unclassifiable. Washington CountyAttainment/Unclassifiable. Wayne CountyAttainment/Unclassifiable. White CountyAttainment/Unclassifiable. Whiteside CountyAttainment/Unclassifiable. Will County (part) (remainder)Attainment/Unclassifiable. Williamson County3 10/15/2019Attainment/Unclassifiable. Winnebago CountyAttainment/Unclassifiable. Woodford CountyAttainment/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 9/12/16.

Illinois—Carbon Monoxide

Designated Area Designation Classification Date 1Type Date 1Type Adams CountyUnclassifiable/Attainment Alexander CountyUnclassifiable/Attainment Bond CountyUnclassifiable/Attainment Boone CountyUnclassifiable/Attainment Brown CountyUnclassifiable/Attainment Bureau CountyUnclassifiable/Attainment Calhoun CountyUnclassifiable/Attainment Carroll CountyUnclassifiable/Attainment Cass CountyUnclassifiable/Attainment Champaign CountyUnclassifiable/Attainment Christian CountyUnclassifiable/Attainment Clark CountyUnclassifiable/Attainment Clay CountyUnclassifiable/Attainment Clinton CountyUnclassifiable/Attainment Coles CountyUnclassifiable/Attainment Cook CountyUnclassifiable/Attainment Crawford CountyUnclassifiable/Attainment Cumberland CountyUnclassifiable/Attainment De Kalb CountyUnclassifiable/Attainment De Witt CountyUnclassifiable/Attainment Douglas CountyUnclassifiable/Attainment Du Page CountyUnclassifiable/Attainment Edgar CountyUnclassifiable/Attainment Edwards CountyUnclassifiable/Attainment Effingham CountyUnclassifiable/Attainment Fayette CountyUnclassifiable/Attainment Ford CountyUnclassifiable/Attainment Franklin CountyUnclassifiable/Attainment Fulton CountyUnclassifiable/Attainment Gallatin CountyUnclassifiable/Attainment Greene CountyUnclassifiable/Attainment Grundy CountyUnclassifiable/Attainment Hamilton CountyUnclassifiable/Attainment Hancock CountyUnclassifiable/Attainment Hardin CountyUnclassifiable/Attainment Henderson CountyUnclassifiable/Attainment Henry CountyUnclassifiable/Attainment Iroquois CountyUnclassifiable/Attainment Jackson CountyUnclassifiable/Attainment Jasper CountyUnclassifiable/Attainment Jefferson CountyUnclassifiable/Attainment Jersey CountyUnclassifiable/Attainment Jo Daviess CountyUnclassifiable/Attainment Johnson CountyUnclassifiable/Attainment Kane CountyUnclassifiable/Attainment Kankakee CountyUnclassifiable/Attainment Kendall CountyUnclassifiable/Attainment Knox CountyUnclassifiable/Attainment Lake CountyUnclassifiable/Attainment La Salle CountyUnclassifiable/Attainment Lawrence CountyUnclassifiable/Attainment Lee CountyUnclassifiable/Attainment Livingston CountyUnclassifiable/Attainment Logan CountyUnclassifiable/Attainment Macon CountyUnclassifiable/Attainment Macoupin CountyUnclassifiable/Attainment Madison CountyUnclassifiable/Attainment Marion CountyUnclassifiable/Attainment Marshall CountyUnclassifiable/Attainment Mason CountyUnclassifiable/Attainment Massac CountyUnclassifiable/Attainment McDonough CountyUnclassifiable/Attainment McHenry CountyUnclassifiable/Attainment McLean CountyUnclassifiable/Attainment Menard CountyUnclassifiable/Attainment Mercer CountyUnclassifiable/Attainment Monroe CountyUnclassifiable/Attainment Montgomery CountyUnclassifiable/Attainment Morgan CountyUnclassifiable/Attainment Moultrie CountyUnclassifiable/Attainment Ogle CountyUnclassifiable/Attainment Peoria CountyUnclassifiable/Attainment Perry CountyUnclassifiable/Attainment Piatt CountyUnclassifiable/Attainment Pike CountyUnclassifiable/Attainment Pope CountyUnclassifiable/Attainment Pulaski CountyUnclassifiable/Attainment Putnam CountyUnclassifiable/Attainment Randolph CountyUnclassifiable/Attainment Richland CountyUnclassifiable/Attainment Rock Island CountyUnclassifiable/Attainment St. Clair CountyUnclassifiable/Attainment Saline CountyUnclassifiable/Attainment Sangamon CountyUnclassifiable/Attainment Schuyler CountyUnclassifiable/Attainment Scott CountyUnclassifiable/Attainment Shelby CountyUnclassifiable/Attainment Stark CountyUnclassifiable/Attainment Stephenson CountyUnclassifiable/Attainment Tazewell CountyUnclassifiable/Attainment Union CountyUnclassifiable/Attainment Vermilion CountyUnclassifiable/Attainment Wabash CountyUnclassifiable/Attainment Warren CountyUnclassifiable/Attainment Washington CountyUnclassifiable/Attainment Wayne CountyUnclassifiable/Attainment White CountyUnclassifiable/Attainment Whiteside CountyUnclassifiable/Attainment Will CountyUnclassifiable/Attainment Williamson CountyUnclassifiable/Attainment Winnebago CountyUnclassifiable/Attainment Woodford CountyUnclassifiable/Attainment

1 This date is November 15, 1990, unless otherwise noted.

Illinois—Ozone (1-Hour Standard) 3

Designated area Designation Classification Date 1Type Date 1Type Chicago-Gary-Lake County Area: Cook County11/15/90Nonattainment11/15/90Severe-17. Du Page County11/15/90Nonattainment11/15/90Severe-17. Grundy County (part) Aux Sable Township11/15/90Nonattainment11/15/90Severe-17. Goose Lake Township11/15/90Nonattainment11/15/90Severe-17. Kane County11/15/90Nonattainment11/15/90Severe-17. Kendall County (part) Oswego Township11/15/90Nonattainment11/15/90Severe-17. Lake County11/15/90Nonattainment11/15/90Severe-17. McHenry County11/15/90Nonattainment11/15/90Severe-17. Will County11/15/90Nonattainment11/15/90Severe-17. Jersey County Area: Jersey CountyAttainment 2St. Louis Area: Madison County5/12/03Attainment Monroe County5/12/03Attainment St. Clair County5/12/03Attainment Adams CountyUnclassifiable/Attainment Alexander CountyUnclassifiable/Attainment Bond CountyUnclassifiable/Attainment Boone CountyUnclassifiable/Attainment Brown CountyUnclassifiable/Attainment Bureau CountyUnclassifiable/Attainment Calhoun CountyUnclassifiable/Attainment Carroll CountyUnclassifiable/Attainment Cass CountyUnclassifiable/Attainment Champaign CountyUnclassifiable/Attainment Christian CountyUnclassifiable/Attainment Clark CountyUnclassifiable/Attainment Clay CountyUnclassifiable/Attainment Clinton CountyUnclassifiable/Attainment Coles CountyUnclassifiable/Attainment Crawford CountyUnclassifiable/Attainment Cumberland CountyUnclassifiable/Attainment De Kalb CountyUnclassifiable/Attainment De Witt CountyUnclassifiable/Attainment Douglas CountyUnclassifiable/Attainment Edgar CountyUnclassifiable/Attainment Edwards CountyUnclassifiable/Attainment Effingham CountyUnclassifiable/Attainment Fayette CountyUnclassifiable/Attainment Ford CountyUnclassifiable/Attainment Franklin CountyUnclassifiable/Attainment Fulton CountyUnclassifiable/Attainment Gallatin CountyUnclassifiable/Attainment Greene CountyUnclassifiable/Attainment Grundy County (part) All townships except Aux Sable and Goose LakeUnclassifiable/Attainment Hamilton CountyUnclassifiable/Attainment Hancock CountyUnclassifiable/Attainment Hardin CountyUnclassifiable/Attainment Henderson CountyUnclassifiable/Attainment Henry CountyUnclassifiable/Attainment Iroquois CountyUnclassifiable/Attainment Jackson CountyUnclassifiable/Attainment Jasper CountyUnclassifiable/Attainment Jefferson CountyUnclassifiable/Attainment Jo Daviess CountyUnclassifiable/Attainment Johnson CountyUnclassifiable/Attainment Kankakee CountyUnclassifiable/Attainment Kendall County (part) All townships except OswegoUnclassifiable/Attainment Knox CountyUnclassifiable/Attainment La Salle CountyUnclassifiable/Attainment Lawrence CountyUnclassifiable/Attainment Lee CountyUnclassifiable/Attainment Livingston CountyUnclassifiable/Attainment Logan CountyUnclassifiable/Attainment Macon CountyUnclassifiable/Attainment Macoupin CountyUnclassifiable/Attainment Marion CountyUnclassifiable/Attainment Marshall CountyUnclassifiable/Attainment Mason CountyUnclassifiable/Attainment Massac CountyUnclassifiable/Attainment McDonough CountyUnclassifiable/Attainment McLean CountyUnclassifiable/Attainment Menard CountyUnclassifiable/Attainment Mercer CountyUnclassifiable/Attainment Montgomery CountyUnclassifiable/Attainment Morgan CountyUnclassifiable/Attainment Moultrie CountyUnclassifiable/Attainment Ogle CountyUnclassifiable/Attainment Peoria CountyUnclassifiable/Attainment Perry CountyUnclassifiable/Attainment Piatt CountyUnclassifiable/Attainment Pike CountyUnclassifiable/Attainment Pope CountyUnclassifiable/Attainment Pulaski CountyUnclassifiable/Attainment Putnam CountyUnclassifiable/Attainment Randolph CountyUnclassifiable/Attainment Richland CountyUnclassifiable/Attainment Rock Island CountyUnclassifiable/Attainment Saline CountyUnclassifiable/Attainment Sangamon CountyUnclassifiable/Attainment Schuyler CountyUnclassifiable/Attainment Scott CountyUnclassifiable/Attainment Shelby CountyUnclassifiable/Attainment Stark CountyUnclassifiable/Attainment Stephenson CountyUnclassifiable/Attainment Tazewell CountyUnclassifiable/Attainment Union CountyUnclassifiable/Attainment Vermilion CountyUnclassifiable/Attainment Wabash CountyUnclassifiable/Attainment Warren CountyUnclassifiable/Attainment Washington CountyUnclassifiable/Attainment Wayne CountyUnclassifiable/Attainment White CountyUnclassifiable/Attainment Whiteside CountyUnclassifiable/Attainment Williamson CountyUnclassifiable/Attainment Winnebago CountyUnclassifiable/Attainment Woodford CountyUnclassifiable/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 Township11/21/05Attainment 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 line11/21/05Attainment LaSalle County10/7/96Attainment 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 Township5/11/98Attainment Rest of State11/15/90Unclassifiable

Illinois—1997 Annual PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation aClassification Date 1Type Date 2Type Chicago-Gary-Lake County, IL-IN:10/2/13Attainment. 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 County5/28/2019AttainmentMonroe County5/28/2019AttainmentRandolph County (part): Baldwin Village5/28/2019AttainmentSt. Clair County5/28/2019Attainment Rest of State: Adams CountyUnclassifiable/Attainment. Alexander CountyUnclassifiable/Attainment. Bond CountyUnclassifiable/Attainment. Boone CountyUnclassifiable/Attainment. Brown CountyUnclassifiable/Attainment. Bureau CountyUnclassifiable/Attainment. Calhoun CountyUnclassifiable/Attainment. Carroll CountyUnclassifiable/Attainment. Cass CountyUnclassifiable/Attainment. Champaign CountyUnclassifiable/Attainment. Christian CountyUnclassifiable/Attainment. Clark CountyUnclassifiable/Attainment. Clay CountyUnclassifiable/Attainment. Clinton CountyUnclassifiable/Attainment. Coles CountyUnclassifiable/Attainment. Crawford CountyUnclassifiable/Attainment. Cumberland CountyUnclassifiable/Attainment. DeKalb CountyUnclassifiable/Attainment. De Witt CountyUnclassifiable/Attainment. Douglas CountyUnclassifiable/Attainment. Edgar CountyUnclassifiable/Attainment. Edwards CountyUnclassifiable/Attainment. Effingham CountyUnclassifiable/Attainment. Fayette CountyUnclassifiable/Attainment. Ford CountyUnclassifiable/Attainment. Franklin CountyUnclassifiable/Attainment. Fulton CountyUnclassifiable/Attainment. Gallatin CountyUnclassifiable/Attainment. Greene CountyUnclassifiable/Attainment. Grundy County (remainder)Unclassifiable/Attainment. Hamilton CountyUnclassifiable/Attainment. Hancock CountyUnclassifiable/Attainment. Hardin CountyUnclassifiable/Attainment. Henderson CountyUnclassifiable/Attainment. Henry CountyUnclassifiable/Attainment. Iroquois CountyUnclassifiable/Attainment. Jackson CountyUnclassifiable/Attainment. Jasper CountyUnclassifiable/Attainment. Jefferson CountyUnclassifiable/Attainment. Jersey CountyUnclassifiable/Attainment. Jo Daviess CountyUnclassifiable/Attainment. Johnson CountyUnclassifiable/Attainment. Kankakee CountyUnclassifiable/Attainment. Kendall County (remainder)Unclassifiable/Attainment. Knox CountyUnclassifiable/Attainment. La Salle CountyUnclassifiable/Attainment. Lawrence CountyUnclassifiable/Attainment. Lee CountyUnclassifiable/Attainment. Livingston CountyUnclassifiable/Attainment. Logan CountyUnclassifiable/Attainment. McDonough CountyUnclassifiable/Attainment. McLean CountyUnclassifiable/Attainment. Macon CountyUnclassifiable/Attainment. Macoupin CountyUnclassifiable/Attainment. Marion CountyUnclassifiable/Attainment. Marshall CountyUnclassifiable/Attainment. Mason CountyUnclassifiable/Attainment. Massac CountyUnclassifiable/Attainment. Menard CountyUnclassifiable/Attainment. Mercer CountyUnclassifiable/Attainment. Montgomery CountyUnclassifiable/Attainment. Morgan CountyUnclassifiable/Attainment. Moultrie CountyUnclassifiable/Attainment. Ogle CountyUnclassifiable/Attainment. Peoria CountyUnclassifiable/Attainment. Perry CountyUnclassifiable/Attainment. Piatt CountyUnclassifiable/Attainment. Pike CountyUnclassifiable/Attainment. Pope CountyUnclassifiable/Attainment. Pulaski CountyUnclassifiable/Attainment. Putnam CountyUnclassifiable/Attainment. Randolph County (remainder)Unclassifiable/Attainment. Richland CountyUnclassifiable/Attainment. Rock Island CountyUnclassifiable/Attainment. Saline CountyUnclassifiable/Attainment. Sangamon CountyUnclassifiable/Attainment. Schuyler CountyUnclassifiable/Attainment. Scott CountyUnclassifiable/Attainment. Shelby CountyUnclassifiable/Attainment. Stark CountyUnclassifiable/Attainment. Stephenson CountyUnclassifiable/Attainment. Tazewell CountyUnclassifiable/Attainment. Union CountyUnclassifiable/Attainment. Vermilion CountyUnclassifiable/Attainment. Wabash CountyUnclassifiable/Attainment. Warren CountyUnclassifiable/Attainment. Washington CountyUnclassifiable/Attainment. Wayne CountyUnclassifiable/Attainment. White CountyUnclassifiable/Attainment. Whiteside CountyUnclassifiable/Attainment. Williamson CountyUnclassifiable/Attainment. Winnebago CountyUnclassifiable/Attainment. Woodford CountyUnclassifiable/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 PM2.5 NAAQS

[Primary]

Designated area 1Designation Classification Date 2Type Date 2Type Chicago, IL-IN:Cook CountyUnclassifiable/Attainment. DuPage CountyUnclassifiable/Attainment. Grundy County (part)Unclassifiable/Attainment. Goose Lake and Aux Sable TownshipsUnclassifiable/Attainment. Kane CountyUnclassifiable/Attainment. Kendall County (part)Unclassifiable/Attainment. Oswego TownshipUnclassifiable/Attainment. Lake CountyUnclassifiable/Attainment. McHenry CountyUnclassifiable/Attainment. Will CountyUnclassifiable/Attainment. Davenport-Moline-Rock Island, IL:Rock Island CountyUnclassifiable/Attainment. Henry CountyUnclassifiable/Attainment. Mercer CountyUnclassifiable/Attainment. St. Louis, MO-IL:Madison CountyUnclassifiable/Attainment. Monroe CountyUnclassifiable/Attainment. Randolph County (part)Unclassifiable/Attainment. Baldwin VillageUnclassifiable/Attainment. St. Clair CountyUnclassifiable/Attainment. Rest of State:Adams CountyUnclassifiable/Attainment. Alexander CountyUnclassifiable/Attainment. Bond CountyUnclassifiable/Attainment. Boone CountyUnclassifiable/Attainment. Brown CountyUnclassifiable/Attainment. Bureau CountyUnclassifiable/Attainment. Calhoun CountyUnclassifiable/Attainment. Carroll CountyUnclassifiable/Attainment. Cass CountyUnclassifiable/Attainment. Champaign CountyUnclassifiable/Attainment. Christian CountyUnclassifiable/Attainment. Clark CountyUnclassifiable/Attainment. Clay CountyUnclassifiable/Attainment. Clinton CountyUnclassifiable/Attainment. Coles CountyUnclassifiable/Attainment. Crawford CountyUnclassifiable/Attainment. Cumberland CountyUnclassifiable/Attainment. DeKalb CountyUnclassifiable/Attainment. De Witt CountyUnclassifiable/Attainment. Douglas CountyUnclassifiable/Attainment. Edgar CountyUnclassifiable/Attainment. Edwards CountyUnclassifiable/Attainment. Effingham CountyUnclassifiable/Attainment. Fayette CountyUnclassifiable/Attainment. Ford CountyUnclassifiable/Attainment. Franklin CountyUnclassifiable/Attainment. Fulton CountyUnclassifiable/Attainment. Gallatin CountyUnclassifiable/Attainment. Greene CountyUnclassifiable/Attainment. Grundy County (remainder)Unclassifiable/Attainment. Hamilton CountyUnclassifiable/Attainment. Hancock CountyUnclassifiable/Attainment. Hardin CountyUnclassifiable/Attainment. Henderson CountyUnclassifiable/Attainment. Iroquois CountyUnclassifiable/Attainment. Jackson CountyUnclassifiable/Attainment. Jasper CountyUnclassifiable/Attainment. Jefferson CountyUnclassifiable/Attainment. Jersey CountyUnclassifiable/Attainment. Jo Daviess CountyUnclassifiable/Attainment. Johnson CountyUnclassifiable/Attainment. Kankakee CountyUnclassifiable/Attainment. Kendall County (remainder)Unclassifiable/Attainment. Knox CountyUnclassifiable/Attainment. La Salle CountyUnclassifiable/Attainment. Lawrence CountyUnclassifiable/Attainment. Lee CountyUnclassifiable/Attainment. Livingston CountyUnclassifiable/Attainment. Logan CountyUnclassifiable/Attainment. McDonough CountyUnclassifiable/Attainment. McLean CountyUnclassifiable/Attainment. Macon CountyUnclassifiable/Attainment. Macoupin CountyUnclassifiable/Attainment. Marion CountyUnclassifiable/Attainment. Marshall CountyUnclassifiable/Attainment. Mason CountyUnclassifiable/Attainment. Massac CountyUnclassifiable/Attainment. Menard CountyUnclassifiable/Attainment. Montgomery CountyUnclassifiable/Attainment. Morgan CountyUnclassifiable/Attainment. Moultrie CountyUnclassifiable/Attainment. Ogle CountyUnclassifiable/Attainment. Peoria CountyUnclassifiable/Attainment. Perry CountyUnclassifiable/Attainment. Piatt CountyUnclassifiable/Attainment. Pike CountyUnclassifiable/Attainment. Pope CountyUnclassifiable/Attainment. Pulaski CountyUnclassifiable/Attainment. Putnam CountyUnclassifiable/Attainment. Randolph County (remainder)Unclassifiable/Attainment. Richland CountyUnclassifiable/Attainment. Saline CountyUnclassifiable/Attainment. Sangamon CountyUnclassifiable/Attainment. Schuyler CountyUnclassifiable/Attainment. Scott CountyUnclassifiable/Attainment. Shelby CountyUnclassifiable/Attainment. Stark CountyUnclassifiable/Attainment. Stephenson CountyUnclassifiable/Attainment. Tazewell CountyUnclassifiable/Attainment. Union CountyUnclassifiable/Attainment. Vermilion CountyUnclassifiable/Attainment. Wabash CountyUnclassifiable/Attainment. Warren CountyUnclassifiable/Attainment. Washington CountyUnclassifiable/Attainment. Wayne CountyUnclassifiable/Attainment. White CountyUnclassifiable/Attainment. Whiteside CountyUnclassifiable/Attainment. Williamson CountyUnclassifiable/Attainment. Winnebago CountyUnclassifiable/Attainment. Woodford CountyUnclassifiable/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 PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation aClassification Date 1Type Date Type Statewide: Adams CountyUnclassifiable/Attainment. Alexander CountyUnclassifiable/Attainment. Bond CountyUnclassifiable/Attainment. Boone CountyUnclassifiable/Attainment. Brown CountyUnclassifiable/Attainment. Bureau CountyUnclassifiable/Attainment. Calhoun CountyUnclassifiable/Attainment. Carroll CountyUnclassifiable/Attainment. Cass CountyUnclassifiable/Attainment. Champaign CountyUnclassifiable/Attainment. Christian CountyUnclassifiable/Attainment. Clark CountyUnclassifiable/Attainment. Clay CountyUnclassifiable/Attainment. Clinton CountyUnclassifiable/Attainment. Coles CountyUnclassifiable/Attainment. Cook CountyUnclassifiable/Attainment. Crawford CountyUnclassifiable/Attainment. Cumberland CountyUnclassifiable/Attainment. DeKalb CountyUnclassifiable/Attainment. De Witt CountyUnclassifiable/Attainment. Douglas CountyUnclassifiable/Attainment. DuPage CountyUnclassifiable/Attainment. Edgar CountyUnclassifiable/Attainment. Edwards CountyUnclassifiable/Attainment. Effingham CountyUnclassifiable/Attainment. Fayette CountyUnclassifiable/Attainment. Ford CountyUnclassifiable/Attainment. Franklin CountyUnclassifiable/Attainment. Fulton CountyUnclassifiable/Attainment. Gallatin CountyUnclassifiable/Attainment. Greene CountyUnclassifiable/Attainment. Grundy CountyUnclassifiable/Attainment. Hamilton CountyUnclassifiable/Attainment. Hancock CountyUnclassifiable/Attainment. Hardin CountyUnclassifiable/Attainment. Henderson CountyUnclassifiable/Attainment. Henry CountyUnclassifiable/Attainment. Iroquois CountyUnclassifiable/Attainment. Jackson CountyUnclassifiable/Attainment. Jasper CountyUnclassifiable/Attainment. Jefferson CountyUnclassifiable/Attainment. Jersey CountyUnclassifiable/Attainment. Jo Daviess CountyUnclassifiable/Attainment. Johnson CountyUnclassifiable/Attainment. Kane CountyUnclassifiable/Attainment. Kankakee CountyUnclassifiable/Attainment. Kendall CountyUnclassifiable/Attainment. Knox CountyUnclassifiable/Attainment. La Salle CountyUnclassifiable/Attainment. Lake CountyUnclassifiable/Attainment. Lawrence CountyUnclassifiable/Attainment. Lee CountyUnclassifiable/Attainment. Livingston CountyUnclassifiable/Attainment. Logan CountyUnclassifiable/Attainment. McDonough CountyUnclassifiable/Attainment. McHenry CountyUnclassifiable/Attainment. McLean CountyUnclassifiable/Attainment. Macon CountyUnclassifiable/Attainment. Macoupin CountyUnclassifiable/Attainment. Madison CountyUnclassifiable/Attainment. Marion CountyUnclassifiable/Attainment. Marshall CountyUnclassifiable/Attainment. Mason CountyUnclassifiable/Attainment. Massac CountyUnclassifiable/Attainment. Menard CountyUnclassifiable/Attainment. Mercer CountyUnclassifiable/Attainment. Monroe CountyUnclassifiable/Attainment. Montgomery CountyUnclassifiable/Attainment. Morgan CountyUnclassifiable/Attainment. Moultrie CountyUnclassifiable/Attainment. Ogle CountyUnclassifiable/Attainment. Peoria CountyUnclassifiable/Attainment. Perry CountyUnclassifiable/Attainment. Piatt CountyUnclassifiable/Attainment. Pike CountyUnclassifiable/Attainment. Pope CountyUnclassifiable/Attainment. Pulaski CountyUnclassifiable/Attainment. Putnam CountyUnclassifiable/Attainment. Randolph CountyUnclassifiable/Attainment. Richland CountyUnclassifiable/Attainment. Rock Island CountyUnclassifiable/Attainment. St. Clair CountyUnclassifiable/Attainment. Saline CountyUnclassifiable/Attainment. Sangamon CountyUnclassifiable/Attainment. Schuyler CountyUnclassifiable/Attainment. Scott CountyUnclassifiable/Attainment. Shelby CountyUnclassifiable/Attainment. Stark CountyUnclassifiable/Attainment. Stephenson CountyUnclassifiable/Attainment. Tazewell CountyUnclassifiable/Attainment. Union CountyUnclassifiable/Attainment. Vermilion CountyUnclassifiable/Attainment. Wabash CountyUnclassifiable/Attainment. Warren CountyUnclassifiable/Attainment. Washington CountyUnclassifiable/Attainment. Wayne CountyUnclassifiable/Attainment. White CountyUnclassifiable/Attainment. Whiteside CountyUnclassifiable/Attainment. Will CountyUnclassifiable/Attainment. Williamson CountyUnclassifiable/Attainment. Winnebago CountyUnclassifiable/Attainment. Woodford CountyUnclassifiable/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 PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation aClassification Date 1Type Date Type Statewide: Adams CountyUnclassifiable/Attainment Alexander CountyUnclassifiable/Attainment Bond CountyUnclassifiable/Attainment Boone CountyUnclassifiable/Attainment Brown CountyUnclassifiable/Attainment Bureau CountyUnclassifiable/Attainment Calhoun CountyUnclassifiable/Attainment Carroll CountyUnclassifiable/Attainment Cass CountyUnclassifiable/Attainment Champaign CountyUnclassifiable/Attainment Christian CountyUnclassifiable/Attainment Clark CountyUnclassifiable/Attainment Clay CountyUnclassifiable/Attainment Clinton CountyUnclassifiable/Attainment Coles CountyUnclassifiable/Attainment Cook CountyUnclassifiable/Attainment Crawford CountyUnclassifiable/Attainment Cumberland CountyUnclassifiable/Attainment DeKalb CountyUnclassifiable/Attainment De Witt CountyUnclassifiable/Attainment Douglas CountyUnclassifiable/Attainment DuPage CountyUnclassifiable/Attainment Edgar CountyUnclassifiable/Attainment Edwards CountyUnclassifiable/Attainment Effingham CountyUnclassifiable/Attainment Fayette CountyUnclassifiable/Attainment Ford CountyUnclassifiable/Attainment Franklin CountyUnclassifiable/Attainment Fulton CountyUnclassifiable/Attainment Gallatin CountyUnclassifiable/Attainment Greene CountyUnclassifiable/Attainment Grundy CountyUnclassifiable/Attainment Hamilton CountyUnclassifiable/Attainment Hancock CountyUnclassifiable/Attainment Hardin CountyUnclassifiable/Attainment Henderson CountyUnclassifiable/Attainment Henry CountyUnclassifiable/Attainment Iroquois CountyUnclassifiable/Attainment Jackson CountyUnclassifiable/Attainment Jasper CountyUnclassifiable/Attainment Jefferson CountyUnclassifiable/Attainment Jersey CountyUnclassifiable/Attainment Jo Daviess CountyUnclassifiable/Attainment Johnson CountyUnclassifiable/Attainment Kane CountyUnclassifiable/Attainment Kankakee CountyUnclassifiable/Attainment Kendall CountyUnclassifiable/Attainment Knox CountyUnclassifiable/Attainment La Salle CountyUnclassifiable/Attainment Lake CountyUnclassifiable/Attainment Lawrence CountyUnclassifiable/Attainment Lee CountyUnclassifiable/Attainment Livingston CountyUnclassifiable/Attainment Logan CountyUnclassifiable/Attainment McDonough CountyUnclassifiable/Attainment McHenry CountyUnclassifiable/Attainment McLean CountyUnclassifiable/Attainment Macon CountyUnclassifiable/Attainment Macoupin CountyUnclassifiable/Attainment Madison CountyUnclassifiable/Attainment Marion CountyUnclassifiable/Attainment Marshall CountyUnclassifiable/Attainment Mason CountyUnclassifiable/Attainment Massac CountyUnclassifiable/Attainment Menard CountyUnclassifiable/Attainment Mercer CountyUnclassifiable/Attainment Monroe CountyUnclassifiable/Attainment Montgomery CountyUnclassifiable/Attainment Morgan CountyUnclassifiable/Attainment Moultrie CountyUnclassifiable/Attainment Ogle CountyUnclassifiable/Attainment Peoria CountyUnclassifiable/Attainment Perry CountyUnclassifiable/Attainment Piatt CountyUnclassifiable/Attainment Pike CountyUnclassifiable/Attainment Pope CountyUnclassifiable/Attainment Pulaski CountyUnclassifiable/Attainment Putnam CountyUnclassifiable/Attainment Randolph CountyUnclassifiable/Attainment Richland CountyUnclassifiable/Attainment Rock Island CountyUnclassifiable/Attainment St. Clair CountyUnclassifiable/Attainment Saline CountyUnclassifiable/Attainment Sangamon CountyUnclassifiable/Attainment Schuyler CountyUnclassifiable/Attainment Scott CountyUnclassifiable/Attainment Shelby CountyUnclassifiable/Attainment Stark CountyUnclassifiable/Attainment Stephenson CountyUnclassifiable/Attainment Tazewell CountyUnclassifiable/Attainment Union CountyUnclassifiable/Attainment Vermilion CountyUnclassifiable/Attainment Wabash CountyUnclassifiable/Attainment Warren CountyUnclassifiable/Attainment Washington CountyUnclassifiable/Attainment Wayne CountyUnclassifiable/Attainment White CountyUnclassifiable/Attainment Whiteside CountyUnclassifiable/Attainment Will CountyUnclassifiable/Attainment Williamson CountyUnclassifiable/Attainment Winnebago CountyUnclassifiable/Attainment Woodford CountyUnclassifiable/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—NO2 (1971 Annual Standard)

Designated area Does not meet primary standards Cannot be classified or better than national standards AQCR 65: Fulton CountyX Hancock CountyX Henderson CountyX Knox CountyX McDonough CountyX Mason CountyX Peoria CountyX Tazewell CountyX Warren CountyX Woodford CountyX Lee CountyX AQCR 66: Champaign CountyX Clark CountyX Coles CountyX Cumberland CountyX De Witt CountyX Douglas CountyX Edgar CountyX Ford CountyX Iroquois CountyX Livingston CountyX McLean CountyX Moultrie CountyX Piatt CountyX Shelby CountyX Vermilion CountyX AQCR 67: Cook CountyX Du Page CountyX Grundy CountyX Kane CountyX Kankakee CountyX Kendall CountyX Lake CountyX McHenry CountyX Will CountyX AQCR 68: Jo Daviess CountyX AQCR 69: Carroll CountyX Henry CountyX Mercer CountyX Rock Island CountyX Whiteside CountyX AQCR 70: Bond CountyX Clinton CountyX Madison CountyX Monroe CountyX Randolph CountyX St. Clair CountyX Washington CountyX AQCR 71: Bureau CountyX La Salle CountyX Lee CountyX Marshall CountyX Putnam CountyX Stark CountyX AQCR 72: Alexander CountyX Johnson CountyX Massac CountyX Pope CountyX Pulaski CountyX Union CountyX AQCR 73: Boone CountyX De Kalb CountyX Ogle CountyX Stephenson CountyX Winnebago CountyX AQCR 74: Clay CountyX Crawford CountyX Edwards CountyX Effingham CountyX Fayette CountyX Franklin CountyX Gallatin CountyX Hamilton CountyX Hardin CountyX Jackson CountyX Jasper CountyX Jefferson CountyX Lawrence CountyX Marion CountyX Perry CountyX Richland CountyX Saline CountyX Wabash CountyX Wayne CountyX White CountyX Williamson CountyX AQCR 75: Adams CountyX Brown CountyX Calhoun CountyX Cass CountyX Christian CountyX Greene CountyX Jersey CountyX Logan CountyX Macon CountyX Macoupin CountyX Menard CountyX Montgomery CountyX Morgan CountyX Pike CountyX Sangamon CountyX Schuyler CountyX Scott CountyX

Illinois—NO2 (2010 1-Hour Standard)

Designated area Designation aDate 1Type Adams CountyUnclassifiable/Attainment. Alexander CountyUnclassifiable/Attainment. Bond CountyUnclassifiable/Attainment. Boone CountyUnclassifiable/Attainment. Brown CountyUnclassifiable/Attainment. Bureau CountyUnclassifiable/Attainment. Calhoun CountyUnclassifiable/Attainment. Carroll CountyUnclassifiable/Attainment. Cass CountyUnclassifiable/Attainment. Champaign CountyUnclassifiable/Attainment. Christian CountyUnclassifiable/Attainment. Clark CountyUnclassifiable/Attainment. Clay CountyUnclassifiable/Attainment. Clinton CountyUnclassifiable/Attainment. Coles CountyUnclassifiable/Attainment. Cook CountyUnclassifiable/Attainment. Crawford CountyUnclassifiable/Attainment. Cumberland CountyUnclassifiable/Attainment. DeKalb CountyUnclassifiable/Attainment. De Witt CountyUnclassifiable/Attainment. Douglas CountyUnclassifiable/Attainment. DuPage CountyUnclassifiable/Attainment. Edgar CountyUnclassifiable/Attainment. Edwards CountyUnclassifiable/Attainment. Effingham CountyUnclassifiable/Attainment. Fayette CountyUnclassifiable/Attainment. Ford CountyUnclassifiable/Attainment. Franklin CountyUnclassifiable/Attainment. Fulton CountyUnclassifiable/Attainment. Gallatin CountyUnclassifiable/Attainment. Greene CountyUnclassifiable/Attainment. Grundy CountyUnclassifiable/Attainment. Hamilton CountyUnclassifiable/Attainment. Hancock CountyUnclassifiable/Attainment. Hardin CountyUnclassifiable/Attainment. Henderson CountyUnclassifiable/Attainment. Henry CountyUnclassifiable/Attainment. Iroquois CountyUnclassifiable/Attainment. Jackson CountyUnclassifiable/Attainment. Jasper CountyUnclassifiable/Attainment. Jefferson CountyUnclassifiable/Attainment. Jersey CountyUnclassifiable/Attainment. Jo Daviess CountyUnclassifiable/Attainment. Johnson CountyUnclassifiable/Attainment. Kane CountyUnclassifiable/Attainment. Kankakee CountyUnclassifiable/Attainment. Kendall CountyUnclassifiable/Attainment. Knox CountyUnclassifiable/Attainment. La Salle CountyUnclassifiable/Attainment. Lake CountyUnclassifiable/Attainment. Lawrence CountyUnclassifiable/Attainment. Lee CountyUnclassifiable/Attainment. Livingston CountyUnclassifiable/Attainment. Logan CountyUnclassifiable/Attainment. Madison CountyUnclassifiable/Attainment. McDonough CountyUnclassifiable/Attainment. McLean CountyUnclassifiable/Attainment. Macon CountyUnclassifiable/Attainment. Macoupin CountyUnclassifiable/Attainment. Marion CountyUnclassifiable/Attainment. Marshall CountyUnclassifiable/Attainment. Mason CountyUnclassifiable/Attainment. Massac CountyUnclassifiable/Attainment. McHenry CountyUnclassifiable/Attainment. Menard CountyUnclassifiable/Attainment. Mercer CountyUnclassifiable/Attainment. Monroe CountyUnclassifiable/Attainment. Montgomery CountyUnclassifiable/Attainment. Morgan CountyUnclassifiable/Attainment. Moultrie CountyUnclassifiable/Attainment. Ogle CountyUnclassifiable/Attainment. Peoria CountyUnclassifiable/Attainment. Perry CountyUnclassifiable/Attainment. Piatt CountyUnclassifiable/Attainment. Pike CountyUnclassifiable/Attainment. Pope CountyUnclassifiable/Attainment. Pulaski CountyUnclassifiable/Attainment. Putnam CountyUnclassifiable/Attainment. Randolph CountyUnclassifiable/Attainment. Richland CountyUnclassifiable/Attainment. Rock Island CountyUnclassifiable/Attainment. St. Clair CountyUnclassifiable/Attainment. Saline CountyUnclassifiable/Attainment. Sangamon CountyUnclassifiable/Attainment. Schuyler CountyUnclassifiable/Attainment. Scott CountyUnclassifiable/Attainment. Shelby CountyUnclassifiable/Attainment. Stark CountyUnclassifiable/Attainment. Stephenson CountyUnclassifiable/Attainment. Tazewell CountyUnclassifiable/Attainment. Union CountyUnclassifiable/Attainment. Vermilion CountyUnclassifiable/Attainment. Wabash CountyUnclassifiable/Attainment. Warren CountyUnclassifiable/Attainment. Washington CountyUnclassifiable/Attainment. Wayne CountyUnclassifiable/Attainment. White CountyUnclassifiable/Attainment. Whiteside CountyUnclassifiable/Attainment. Will CountyUnclassifiable/Attainment. Williamson CountyUnclassifiable/Attainment. Winnebago CountyUnclassifiable/Attainment. Woodford CountyUnclassifiable/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 aCategory/classification Date 1Type Date 1Type Chicago-Gary-Lake County, IL-IN: Cook County8/13/2012 DuPage CountyAttainment. 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 County6/12/2012Attainment Madison County6/12/2012Attainment Monroe County6/12/2012Attainment St. Clair County6/12/2012Attainment Rest of State Adams CountyUnclassifiable/Attainment Alexander CountyUnclassifiable/Attainment Bond CountyUnclassifiable/Attainment Boone CountyUnclassifiable/Attainment Brown CountyUnclassifiable/Attainment Bureau CountyUnclassifiable/Attainment Calhoun CountyUnclassifiable/Attainment Carroll CountyUnclassifiable/Attainment Cass CountyUnclassifiable/Attainment Champaign CountyUnclassifiable/Attainment Christian CountyUnclassifiable/Attainment Clark CountyUnclassifiable/Attainment Clay CountyUnclassifiable/Attainment Clinton CountyUnclassifiable/Attainment Coles CountyUnclassifiable/Attainment Crawford CountyUnclassifiable/Attainment Cumberland CountyUnclassifiable/Attainment De Witt CountyUnclassifiable/Attainment DeKalb CountyUnclassifiable/Attainment Douglas CountyUnclassifiable/Attainment Edgar CountyUnclassifiable/Attainment Edwards CountyUnclassifiable/Attainment Effingham CountyUnclassifiable/Attainment Fayette CountyUnclassifiable/Attainment Ford CountyUnclassifiable/Attainment Franklin CountyUnclassifiable/Attainment Fulton CountyUnclassifiable/Attainment Gallatin CountyUnclassifiable/Attainment Greene CountyUnclassifiable/Attainment Grundy County (part)Unclassifiable/Attainment All townships except Aux Sable and Goose Lake. Hamilton CountyUnclassifiable/Attainment Hancock CountyUnclassifiable/Attainment Hardin CountyUnclassifiable/Attainment Henderson CountyUnclassifiable/Attainment Henry CountyUnclassifiable/Attainment Iroquois CountyUnclassifiable/Attainment Jackson CountyUnclassifiable/Attainment Jasper CountyUnclassifiable/Attainment Jefferson CountyUnclassifiable/Attainment Jo Daviess CountyUnclassifiable/Attainment Johnson CountyUnclassifiable/Attainment Kankakee CountyUnclassifiable/Attainment Kendall County (part)Unclassifiable/Attainment All townships except Oswego Knox CountyUnclassifiable/Attainment La Salle CountyUnclassifiable/Attainment Lawrence CountyUnclassifiable/Attainment Lee CountyUnclassifiable/Attainment Livingston CountyUnclassifiable/Attainment Logan CountyUnclassifiable/Attainment Macon CountyUnclassifiable/Attainment Macoupin CountyUnclassifiable/Attainment Marion CountyUnclassifiable/Attainment Marshall CountyUnclassifiable/Attainment Mason CountyUnclassifiable/Attainment Massac CountyUnclassifiable/Attainment McDonough CountyUnclassifiable/Attainment McLean CountyUnclassifiable/Attainment Menard CountyUnclassifiable/Attainment Mercer CountyUnclassifiable/Attainment Montgomery CountyUnclassifiable/Attainment Morgan CountyUnclassifiable/Attainment Moultrie CountyUnclassifiable/Attainment Ogle CountyUnclassifiable/Attainment Peoria CountyUnclassifiable/Attainment Perry CountyUnclassifiable/Attainment Piatt CountyUnclassifiable/Attainment Pike CountyUnclassifiable/Attainment Pope CountyUnclassifiable/Attainment Pulaski CountyUnclassifiable/Attainment Putnam CountyUnclassifiable/Attainment Randolph CountyUnclassifiable/Attainment Richland CountyUnclassifiable/Attainment Rock Island CountyUnclassifiable/Attainment Saline CountyUnclassifiable/Attainment Sangamon CountyUnclassifiable/Attainment Schuyler CountyUnclassifiable/Attainment Scott CountyUnclassifiable/Attainment Shelby CountyUnclassifiable/Attainment Stark CountyUnclassifiable/Attainment Stephenson CountyUnclassifiable/Attainment Tazewell CountyUnclassifiable/Attainment Union CountyUnclassifiable/Attainment Vermilion CountyUnclassifiable/Attainment Wabash CountyUnclassifiable/Attainment Warren CountyUnclassifiable/Attainment Washington CountyUnclassifiable/Attainment Wayne CountyUnclassifiable/Attainment White CountyUnclassifiable/Attainment Whiteside CountyUnclassifiable/Attainment Williamson CountyUnclassifiable/Attainment Winnebago CountyUnclassifiable/Attainment Woodford CountyUnclassifiable/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 1Type Date 1Type Chicago-Naperville, IL-IN-WI 2May 20, 2022.AttainmentSerious. 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: 2Madison County, Monroe County, St. Clair County3/1/2018Attainment Adams County 3Unclassifiable/Attainment Alexander County 3Unclassifiable/Attainment Bond County 3Unclassifiable/Attainment Boone County 3Unclassifiable/Attainment Brown County 3Unclassifiable/Attainment Bureau County 3Unclassifiable/Attainment Calhoun County 3Unclassifiable/Attainment Carroll County 3Unclassifiable/Attainment Cass County 3Unclassifiable/Attainment Champaign County 3Unclassifiable/Attainment Christian County 3Unclassifiable/Attainment Clark County 3Unclassifiable/Attainment Clay County 3Unclassifiable/Attainment Clinton County 3Unclassifiable/Attainment Coles County 3Unclassifiable/Attainment Crawford County 3Unclassifiable/Attainment Cumberland County 3Unclassifiable/Attainment DeKalb County 3Unclassifiable/Attainment De Witt County 3Unclassifiable/Attainment Douglas County 3Unclassifiable/Attainment Edgar County 3Unclassifiable/Attainment Edwards County 3Unclassifiable/Attainment Effingham County 3Unclassifiable/Attainment Fayette County 3Unclassifiable/Attainment Ford County 3Unclassifiable/Attainment Franklin County 3Unclassifiable/Attainment Fulton County 3Unclassifiable/Attainment Gallatin County 3Unclassifiable/Attainment Greene County 3Unclassifiable/Attainment Grundy County (remainder) 3Unclassifiable/Attainment Hamilton County 3Unclassifiable/Attainment Hancock County 3Unclassifiable/Attainment Hardin County 3Unclassifiable/Attainment Henderson County 3Unclassifiable/Attainment Henry County 3Unclassifiable/Attainment Iroquois County 3Unclassifiable/Attainment Jackson County 3Unclassifiable/Attainment Jasper County 3Unclassifiable/Attainment Jefferson County 3Unclassifiable/Attainment Jersey County 3Unclassifiable/Attainment Jo Daviess County 3Unclassifiable/Attainment Johnson County 3Unclassifiable/Attainment Kankakee County 3Unclassifiable/Attainment Kendall County (remainder)Unclassifiable/Attainment Knox County 3Unclassifiable/Attainment La Salle County 3Unclassifiable/Attainment Lawrence County 3Unclassifiable/Attainment Lee County 3Unclassifiable/Attainment Livingston County 3Unclassifiable/Attainment Logan County 3Unclassifiable/Attainment McDonough County 3Unclassifiable/Attainment McLean County 3Unclassifiable/Attainment Macon County 3Unclassifiable/Attainment Macoupin County 3Unclassifiable/Attainment Marion County 3Unclassifiable/Attainment Marshall County 3Unclassifiable/Attainment Mason County 3Unclassifiable/Attainment Massac County 3Unclassifiable/Attainment Menard County 3Unclassifiable/Attainment Mercer County 3Unclassifiable/Attainment Montgomery County 3Unclassifiable/Attainment Morgan County 3Unclassifiable/Attainment Moultrie County 3Unclassifiable/Attainment Ogle County 3Unclassifiable/Attainment Peoria County 3Unclassifiable/Attainment Perry County 3Unclassifiable/Attainment Piatt County 3Unclassifiable/Attainment Pike County 3Unclassifiable/Attainment Pope County 3Unclassifiable/Attainment Pulaski County 3Unclassifiable/Attainment Putnam County 3Unclassifiable/Attainment Randolph County 3Unclassifiable/Attainment Richland County 3Unclassifiable/Attainment Rock Island County 3Unclassifiable/Attainment Saline County 3Unclassifiable/Attainment Sangamon County 3Unclassifiable/Attainment Schuyler County 3Unclassifiable/Attainment Scott County 3Unclassifiable/Attainment Shelby County 3Unclassifiable/Attainment Stark County 3Unclassifiable/Attainment Stephenson County 3Unclassifiable/Attainment Tazewell County 3Unclassifiable/Attainment Union County 3Unclassifiable/Attainment Vermilion County 3Unclassifiable/Attainment Wabash County 3Unclassifiable/Attainment Warren County 3Unclassifiable/Attainment Washington County 3Unclassifiable/Attainment Wayne County 3Unclassifiable/Attainment White County 3Unclassifiable/Attainment Whiteside County 3Unclassifiable/Attainment Williamson County 3Unclassifiable/Attainment Winnebago County 3Unclassifiable/Attainment Woodford County 3Unclassifiable/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 1Designation Classification Date 2Type Date 2Type Chicago, IL-IN-WINonattainment11/7/22Moderate. Cook County. DuPage County. Grundy County (part). Aux Sable Township and Goose Lake Township: Kane County. Kendall County (part). Oswego Township: Lake County. McHenry CountyJuly 14, 2021. 3Will County. St. Louis, MO-IL: Madison County. Monroe CountyJuly 14, 2021. 3St. Clair County. Adams County1/16/18Attainment/Unclassifiable Alexander County1/16/18Attainment/Unclassifiable Bond CountyAttainment/Unclassifiable Boone County1/16/18Attainment/Unclassifiable Brown County1/16/18Attainment/Unclassifiable Bureau CountyAttainment/Unclassifiable Calhoun CountyAttainment/Unclassifiable Carroll County1/16/18Attainment/Unclassifiable Cass County1/16/18Attainment/Unclassifiable Champaign County1/16/18Attainment/Unclassifiable Christian County1/16/18Attainment/Unclassifiable Clark County1/16/18Attainment/Unclassifiable Clay County1/16/18Attainment/Unclassifiable Clinton CountyAttainment/Unclassifiable Coles County1/16/18Attainment/Unclassifiable Crawford County1/16/18Attainment/Unclassifiable Cumberland County1/16/18Attainment/Unclassifiable De Kalb CountyAttainment/Unclassifiable De Witt County1/16/18Attainment/Unclassifiable Douglas County1/16/18Attainment/Unclassifiable Edgar County1/16/18Attainment/Unclassifiable Edwards County1/16/18Attainment/Unclassifiable Effingham County1/16/18Attainment/Unclassifiable Fayette County1/16/18Attainment/Unclassifiable Ford County1/16/18Attainment/Unclassifiable Franklin County1/16/18Attainment/Unclassifiable Fulton County1/16/18Attainment/Unclassifiable Gallatin County1/16/18Attainment/Unclassifiable Greene County1/16/18Attainment/Unclassifiable Grundy County (part) remainderAttainment/Unclassifiable Hamilton County1/16/18Attainment/Unclassifiable Hancock County1/16/18Attainment/Unclassifiable Hardin County1/16/18Attainment/Unclassifiable Henderson County1/16/18Attainment/Unclassifiable Henry County1/16/18Attainment/Unclassifiable Iroquois County1/16/18Attainment/Unclassifiable Jackson County1/16/18Attainment/Unclassifiable Jasper County1/16/18Attainment/Unclassifiable Jefferson County1/16/18Attainment/Unclassifiable Jersey CountyAttainment/Unclassifiable Jo Daviess County1/16/18Attainment/Unclassifiable Johnson County1/16/18Attainment/Unclassifiable Kankakee CountyAttainment/Unclassifiable Kendall County (part) remainderAttainment/Unclassifiable Knox County1/16/18Attainment/Unclassifiable La Salle CountyAttainment/Unclassifiable Lawrence County1/16/18Attainment/Unclassifiable Lee County1/16/18Attainment/Unclassifiable Livingston County1/16/18Attainment/Unclassifiable Logan County1/16/18Attainment/Unclassifiable Macon County1/16/18Attainment/Unclassifiable Macoupin CountyAttainment/Unclassifiable Marion CountyAttainment/Unclassifiable Marshall County1/16/18Attainment/Unclassifiable Mason County1/16/18Attainment/Unclassifiable Massac County1/16/18Attainment/Unclassifiable McDonough County1/16/18Attainment/Unclassifiable McLean County1/16/18Attainment/Unclassifiable Menard County1/16/18Attainment/Unclassifiable Mercer County1/16/18Attainment/Unclassifiable Montgomery County1/16/18Attainment/Unclassifiable Morgan County1/16/18Attainment/Unclassifiable Moultrie County1/16/18Attainment/Unclassifiable Ogle County1/16/18Attainment/Unclassifiable Peoria County1/16/18Attainment/Unclassifiable Perry County1/16/18Attainment/Unclassifiable Piatt County1/16/18Attainment/Unclassifiable Pike County1/16/18Attainment/Unclassifiable Pope County1/16/18Attainment/Unclassifiable Pulaski County1/16/18Attainment/Unclassifiable Putnam CountyAttainment/Unclassifiable Randolph County1/16/18Attainment/Unclassifiable Richland County1/16/18Attainment/Unclassifiable Rock Island County1/16/18Attainment/Unclassifiable Saline County1/16/18Attainment/Unclassifiable Sangamon County1/16/18Attainment/Unclassifiable Schuyler County1/16/18Attainment/Unclassifiable Scott County1/16/18Attainment/Unclassifiable Shelby County1/16/18Attainment/Unclassifiable Stark County1/16/18Attainment/Unclassifiable Stephenson County1/16/18Attainment/Unclassifiable Tazewell County1/16/18Attainment/Unclassifiable Union County1/16/18Attainment/Unclassifiable Vermilion County1/16/18Attainment/Unclassifiable Wabash County1/16/18Attainment/Unclassifiable Warren County1/16/18Attainment/Unclassifiable Washington County1/16/18Attainment/Unclassifiable Wayne County1/16/18Attainment/Unclassifiable White County1/16/18Attainment/Unclassifiable Whiteside County1/16/18Attainment/Unclassifiable Williamson County1/16/18Attainment/Unclassifiable Winnebago County1/16/18Attainment/Unclassifiable Woodford County1/16/18Attainment/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 aDate 1Type Chicago, IL: Cook County (part)3/28/18Attainment. 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)3/28/18Attainment. Area is bounded by Granite City Township and Venice Township Rest of StateUnclassifiable/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 Notes:1. 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.

2. At 80 FR 2233, Jan. 15, 2015, § 81.314 was amended by adding a table entitled “Illinois—2012 Annual PM2.5 NAAQS (Primary)” following the table “Illinois—1997 Annual PM2.5 NAAQS [Primary and secondary]”; however, the table appearing in the text was entitled “Illinois—2012 24-Hour PM2.5 NAAQS (Primary)”.

AUTHORITY: 42 U.S.C. 7401,

SOURCE: 36 FR 22421, Nov. 25, 1971, unless otherwise noted.

CITE AS: 40 CFR 81.314