Legend (OCR/fosregionoffices_ocr_testdev_051413)

Illinois EPA Field Operations Section Regional Offices (0) Illinois EPA Bureau of Air Field Operations Section Regional Offices by County (1) Region 1 Region 2 Region 3 Bureau of Land and Division of Water Pollution Control (2) Region 1 Region 2 Region 3 Region 4 Region 5 Region 6 Region 7 Division of Public Water Supplies (3) Region 1 Region 2 Region 3.1 Region 3.5 Region 4 Region 5 Region 6 Region 7 Counties (4)