Utilities in Illinois
27,127 systems (SDWIS/Fed snapshot). Search or browse pages — open any row for PFAS monitoring, violation counts, and filter recommendations.
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ORLAND PARK EQUINE HOSPITAL B
IL0080671 · 15 served
ORLAND PARK EQUINE HOSPITAL B
IL3080671 · 25 served
ORPHANS OF THE STORM
IL3103770 · 25 served
ORSOLINI BROTHER RESTAURANT
IL3063776 · 25 served
ORSOLINI BROTHERS
IL0063776 · 25 served
ORSOLINI BROTHERS MOTEL
IL3062273 · 25 served
ORSOLINI MOTEL
IL0062273 · 25 served
OSBERNVILLE ATA 331
IL0051565 · 25 served
OSBERNVILLE ATA 331
IL3051565 · 25 served
OSCAR MAYER PLANT
IL0053652 · 25 served
OSCAR'S BARBER SHOP
IL0096404 · 25 served
OSCAR'S BARBER SHOP
IL3096404 · 25 served
OSCO DRUG WATER VENDING UNIT
IL3133611 · 30 served
OSCO MUTUAL WATER SUPPLY COMPANY, INC.
IL0735200 · 80 served
OSF ST FRANCIS HOSPITAL
IL3164020 · 10,000 served
OSF ST PAUL MEDICAL CENTER MENDOTA
IL3164913 · 225 served
OSWALDS CHANNEL INN
IL0023051 · 125 served
OSWALDS CHANNEL INN
IL3023051 · 125 served
OSWEGO
IL0930150 · 38,169 served
OSWEGO PRAIRIE METHODIST CHURC
IL0029777 · 50 served
OSWEGO PRAIRIE METHODIST CHURC
IL3029777 · 50 served
OSWEGO TWP HWY DEPT
IL0075903 · 25 served
OSWEGO TWP HWY DEPT
IL3075903 · 25 served
OSWEGOLAND PARK DISTRICT
IL3015214 · 25 served
OTHO WILLIAMS RANCH
IL8073950 · 25 served
OTTAWA
IL0990800 · 18,097 served
OTTAWA ESTATES MHP (FORMERLY DATTIS MHP)
IL0995225 · 70 served
OTTAWA FRUIT MARKET-NORTH TAP
IL3127555 · 30 served
OTTAWA FRUIT MARKET-SOUTH TAP
IL3127563 · 30 served
OTTAWA MOOSE LODGE 960
IL0096131 · 25 served
OTTAWA TR GR 1 2ND HP 4138
IL3100875 · 400 served
OTTAWA TRAIL 4108
IL3074443 · 25 served
OTTAWA TRAIL 4160
IL3074450 · 25 served
OTTAWA TRAIL 4175
IL3074435 · 25 served
OTTAWA TRAIL 4176
IL3102657 · 25 served
OTTAWA TRAIL 4108
IL0074443 · 25 served
OTTAWA TRAIL 4160
IL0074450 · 25 served
OTTAWA TRAIL 4175
IL0074435 · 25 served
OTTAWA TRAIL 4176
IL0102657 · 25 served
OTTAWA TRAIL WDS GR 3 HP 4160
IL0074468 · 400 served
OTTAWA TRAIL WDS GR 3 HP 4160
IL3074468 · 400 served
OTTAWA TRAIL WDS GR 4 HP 4161
IL0074427 · 400 served
OTTAWA TRAIL WOODS HP 4161
IL3074427 · 400 served
OTTER CREEK LAKE UTILITIES DISTRICT
IL2015320 · 2,342 served
OTTER CREEK MARKET INC
IL3138461 · 30 served
OTTER CREEK SCHOOL
IL0094615 · 25 served
OTTER CREEK SCHOOL
IL3094615 · 52 served
OTTER CREEK WATER RECLAIMATION DISTRICT
IL0890090 · 5,025 served
OTTER LAKE WATER COMMISSION
IL1175200 · 1,318 served
OUR LADY OF HUMILITY CONVENT
IL3047209 · 25 served