Fragile Water Systems in Illinois

34 community drinking-water systems in Illinois currently rated Fragile (MISI 41–60).

Systems in the Fragile band (MISI 41–60) face meaningful structural challenges across multiple risk families. Typical patterns include concurrent operational stress and capital pressure, or revenue fragility paired with governance risk.

SystemPop. ServedMISIBand

CHICAGO2.7M46.104Fragile

JOLIET160K43.994Fragile

ELGIN115K46.726Fragile

CALUMET CITY37K44.147Fragile

BATAVIA26K44.549Fragile

MELROSE PARK24K40.538Fragile

MAYWOOD24K41.895Fragile

SOUTH ELGIN24K42.718Fragile

CARBONDALE22K41.912Fragile

PARK FOREST22K42.362Fragile

HOMEWOOD19K40.204Fragile

CARY18K40.788Fragile

LEMONT18K43.282Fragile

TROY17K44.149Fragile

MORRIS15K44.252Fragile

HAZEL CREST13K42.514Fragile

RICHTON PARK13K46.147Fragile

WARRENVILLE12K42.864Fragile

SUMMIT11K40.204Fragile

HIGHLAND11K46.872Fragile

STEGER10K45.203Fragile

RIVERSIDE9K45.641Fragile

DUQUOIN7K40.718Fragile

MOUNT CARMEL7K42.174Fragile

PINCKNEYVILLE6K42.961Fragile

COAL CITY6K48.205Fragile

RED BUD4K42.860Fragile

BENTON4K45.958Fragile

DIXMOOR3K44.147Fragile

FORD HEIGHTS2K40.868Fragile

MILAN14743.230Fragile

WESTCHESTER142.514Fragile

MURPHYSBORO148.692Fragile

DES PLAINES140.449Fragile