| ANTIOCH | ANTIOCH |
| BANNOCKBURN | BANNOCKBURN |
| BARRINGTON HILLS | BARRINGTON HILLS |
| BARRINGTON | BARRINGTON |
| BEACH PARK | BEACH PARK |
| BUFFALO GROVE | BUFFALO GROVE |
| DEER PARK | DEER PARK |
| DEERFIELD | DEERFIELD |
| DELMAR WOODS SANITARY DISTRICT | UTILITIES INC |
| FOX LAKE | FOX LAKE |
| FOX RIVER GROVE | FOX RIVER GROVE |
| GRAYSLAKE | GRAYSLAKE |
| GREEN OAKS | GREEN OAKS |
| GREEN OAKS | LAKE COUNTY |
| GURNEE | GURNEE |
| HAINESVILLE | HAINESVILLE |
| HAWTHORN WOODS | HAWTHORN WOODS |
| HAWTHORN WOODS | LAKE COUNTY |
| HIGHLAND PARK | HIGHLAND PARK |
| HIGHWOOD | HIGHWOOD |
| INDIAN CREEK | LAKE COUNTY |
| ISLAND LAKE | ISLAND LAKE |
| KILDEER | KILDEER |
| LAKE BARRINGTON | LAKE BARRINGTON |
| LAKE BLUFF | LAKE BLUFF |
| LAKE COUNTY | AQUA ILLINOIS |
| LAKE COUNTY | BANNOCKBURN |
| LAKE COUNTY | DEERFIELD |
| LAKE COUNTY | FOX LAKE |
| LAKE COUNTY | GURNEE |
| LAKE COUNTY | HAWTHORN WOODS |
| LAKE COUNTY | KILDEER |
| LAKE COUNTY | LAKE COUNTY |
| LAKE COUNTY | LAKE ZURICH |
| LAKE COUNTY | LIBERTYVILLE |
| LAKE COUNTY | LONG GROVE |
| LAKE COUNTY | METTAWA |
| LAKE COUNTY | MUNDELEIN |
| LAKE COUNTY | N/A |
| LAKE COUNTY | OLD MILL CREEK |
| LAKE COUNTY | RIVERWOODS |
| LAKE COUNTY | THIRD LAKE |
| LAKE FOREST | LAKE FOREST |
| LAKE VILLA | LAKE VILLA |
| LAKE ZURICH | LAKE ZURICH |
| LAKEMOOR | LAKEMOOR |
| LAKES REGION SANITARY DISTRICT | FOX LAKE |
| LAKES REGION SANITARY DISTRICT | LAKE COUNTY |
| LAKES REGION SANITARY DISTRICT | LAKE VILLA |
| LAKES REGION SANITARY DISTRICT | LAKEMOOR |
| LAKES REGION SANITARY DISTRICT | N/A |
| LAKES REGION SANITARY DISTRICT | ROUND LAKE |
| LAKES REGION SANITARY DISTRICT | ROUND LAKE BEACH |
| LAKES REGION SANITARY DISTRICT | ROUND LAKE HEIGHTS |
| LAKES REGION SANITARY DISTRICT | VOLO |
| LIBERTYVILLE | LIBERTYVILLE |
| LINCOLNSHIRE | LINCOLNSHIRE |
| LINDENHURST | LINDENHURST |
| LONG GROVE | LONG GROVE |
| METTAWA | LAKE COUNTY |
| METTAWA | METTAWA |
| MUNDELEIN | LAKE COUNTY |
| MUNDELEIN | MUNDELEIN |
| N/A | AQUA ILLINOIS |
| N/A | LAKE COUNTY |
| N/A | LINCOLNSHIRE |
| NORTH BARRINGTON | NORTH BARRINGTON |
| NORTH CHICAGO | NORTH CHICAGO |
| NORTH SHORE SANITARY DISTRICT | LAKE BLUFF |
| NORTH SHORE SANITARY DISTRICT | LAKE COUNTY |
| NORTH SHORE SANITARY DISTRICT | N/A |
| OLD MILL CREEK | OLD MILL CREEK |
| PARK CITY | PARK CITY |
| PORT BARRINGTON | PORT BARRINGTON |
| RIVERWOODS | RIVERWOODS |
| ROUND LAKE BEACH | ROUND LAKE BEACH |
| ROUND LAKE HEIGHTS | ROUND LAKE HEIGHTS |
| ROUND LAKE PARK | ROUND LAKE PARK |
| ROUND LAKE | ROUND LAKE |
| THIRD LAKE | THIRD LAKE |
| TOWER LAKES | TOWER LAKES |
| UTILITIES INC | N/A |
| VOLO | VOLO |
| WADSWORTH | WADSWORTH |
| WAUCONDA | WAUCONDA |
| WAUKEGAN | WAUKEGAN |
| WHEELING | WHEELING |
| WINTHROP HARBOR | WINTHROP HARBOR |
| ZION | ZION |