Northbrook

PWSID: IL0312070

System Details

Population Served34,407
Service Connections12,740
Water SourceSurface Water
System TypeCommunity Water System
OwnerLocal Government
StatusActive
CityNorthbrook
Zip Code60062

Areas Served

  • Northbrook, Cook County

Lead & Copper Testing

ContaminantLevelEPA Action LevelStatus
Lead (90th percentile)0.0160 mg/L0.015 mg/LEXCEEDS Action Level
Lead (90th percentile)0.0057 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0045 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0042 mg/L0.015 mg/LBelow Action Level

Violation History (7 total)

ContaminantViolationDateHealth-BasedStatus
2023-07-01 MajorReturned to Compliance
2023-07-01 MajorAcknowledged
2023-07-01 MajorReturned to Compliance
2023-07-01 MajorReturned to Compliance
2020-12-30Returned to Compliance
2020-12-30Returned to Compliance
1993-01-01YesReturned to Compliance