Office of Planning, Environment, & Realty (HEP)
Planning • Environment • Real Estate
| STATE | Nonattainment or Maintence Area | COUNTY | 2002.7.1 POP. | 1-Hr O3 Class | O3 WT | CO Class | CO WT | POPULATION FINAL WTED |
|---|---|---|---|---|---|---|---|---|
| ILLINOIS | 8,927,848 | 11,321,088 | ||||||
| Chicago-Gary-Lake County | Cook | 5,377,507 | Sev | 1.3 | 6,990,759 | |||
| DuPage | 924,589 | Sev | 1.3 | 1,201,966 | ||||
| Grundy | 38,839 | Sev | 1.3 | 50,491 | ||||
| Kane | 443,041 | Sev | 1.3 | 575,953 | ||||
| Kendall | 61,222 | Sev | 1.3 | 79,589 | ||||
| Lake | 674,850 | Sev | 1.3 | 877,305 | ||||
| McHenry | 277,710 | Sev | 1.3 | 361,023 | ||||
| Will | 559,861 | Sev | 1.3 | 727,819 | ||||
| St Louis, MO | Madison | 261,409 | Mnt | 0.8 | 209,127 | |||
| Monroe | 29,058 | Mnt | 0.8 | 23,246 | ||||
| St. Clair | 257,904 | Mnt | 0.8 | 206,323 | ||||
| Jersey Co. | Jersey Co | 21,858 | Mnt | 0.8 | 17,486 |