EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

COUNTY WATER-SYSTEM LEDGER

Lake, Illinois

Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.

Systems40active CWS · pop. 2,500+
Population served601,618reported total; may overlap
Current violation flag40.0%16 systems
Serious-violator flag5.0%2 systems

01 / SYSTEMS

Water systems serving Lake

Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.

Water systemPopulation servedPrimary sourceCurrent export status
WaukeganIL097190087,149Surface waterOther current violation flag
Vernon Hills - Lake Co PwIL097175033,207Surface water purchasedNo current violation flagged
MundeleinIL097115031,500Surface water purchasedNo current violation flagged
GurneeIL097035030,193Surface water purchasedNo current violation flagged
Highland ParkIL097050030,176Surface waterNo current violation flagged
Round Lake BeachIL097155027,200Surface water purchasedNo current violation flagged
ZionIL097200024,442Surface water purchasedOther current violation flag
Great Lakes Naval Training StationIL097522723,000Surface waterNo current violation flagged
GrayslakeIL097025021,248Surface water purchasedNo current violation flagged
LibertyvilleIL097090020,500Surface water purchasedNo current violation flagged
Lake ZurichIL097085019,759Ground waterNo current violation flagged
Lake ForestIL097080019,642Surface waterNo current violation flagged
DeerfieldIL097434019,196Surface water purchasedCurrent monitoring/reporting flag
Round LakeIL097150018,430Surface water purchasedCurrent monitoring/reporting flag
North ChicagoIL097125016,813Surface waterOther current violation flag
WaucondaIL097185015,349Surface water purchasedOther current violation flag
Wildwood Subdivision - Lake Co PwIL097735014,832Surface water purchasedOther current violation flag
LindenhurstIL097100014,500Surface water purchasedNo current violation flagged
AntiochIL097005014,175Ground waterCurrent monitoring/reporting flag
Fox LakeIL097020011,780Ground waterOther current violation flag
BarringtonIL097408010,327Ground waterNo current violation flagged
Lake VillaIL09708408,829Surface water purchasedNo current violation flagged
Beach ParkIL09701908,710Surface water purchasedNo current violation flagged
Island LakeIL09745408,066Ground waterNo current violation flagged
LincolnshireIL09709507,940Surface water purchasedOther current violation flag
VoloIL09717706,629Surface water purchasedNo current violation flagged
Winthrop HarborIL09719506,565Surface water purchasedCurrent serious-violator flag
Grandwood Park Subdivision - Lake Co PwIL09756005,751Surface water purchasedNo current violation flagged
Lake BluffIL09707505,600Surface water purchasedCurrent monitoring/reporting flag
Park CityIL09714005,425Surface water purchasedNo current violation flagged
HighwoodIL09705505,335Surface waterCurrent monitoring/reporting flag
Round Lake ParkIL09716004,900Surface water purchasedCurrent serious-violator flag
Lcpw - Pekara SubdivisionIL09759003,711Surface water purchasedNo current violation flagged
RiverwoodsIL09714503,618Surface water purchasedNo current violation flagged
HainesvilleIL09704003,528Ground waterNo current violation flagged
Aqua Illinois-Hawthorn WoodsIL09750403,065Ground waterNo current violation flagged
LakemoorIL09702702,720Ground waterOther current violation flag
Fox Lake Hills Subdivision - Lake Co PwIL09755502,628Surface water purchasedNo current violation flagged
Round Lake HeightsIL09702602,622Surface water purchasedNo current violation flagged
Saddlebrook FarmsIL09701202,558Ground waterOther current violation flag

02 / SOURCE MIX

Surface water purchased25 systems · 343,525 served
Surface water6 systems · 182,115 served
Ground water9 systems · 75,978 served
How to read the population total

It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.