North Chicago
IL

Is North Chicago, IL Tap Water Safe to Drink?

North Chicago, IL tap water currently meets EPA health guidelines across all monitored ZIP codes in this dataset. Contaminants including lithium have been detected at or below guideline thresholds.

3Water systems
2ZIP codes
0%ZIPs above EPA guideline
Metro areaChicago-Naperville-Elgin, IL-IN
Latest data2025-11-11

Where Does North Chicago Get Its Water?

Water in North Chicago, IL is provided by 3 public water systems: NORTH CHICAGO, CAPTAIN JAMES A LOVELL FHCC and GREAT LAKES NAVAL TRAINING STATION.

How Is North Chicago Tap Water Treated?

Treated water is disinfected using chloramines and free chlorine. Treatment includes conventional treatment (coagulation, flocculation, and filtration), in-line filtration and post-ozone biofiltration.

What's in North Chicago Tap Water?

The following contaminants were detected most frequently in North Chicago public water systems. All detected levels fall at or below EPA health guidelines in this dataset.

ContaminantPeak detectedEPA guidelineZIPs detectedStatus
lithium 9 µg/L 0 ZIPs Within guideline
PFTrDA 0.007 µg/L 0.007 µg/L 1 ZIP Within guideline
11Cl-PF3OUdS 0.005 µg/L 0 ZIPs Within guideline
8:2 FTS 0.005 µg/L 0 ZIPs Within guideline
6:2 FTS 0.005 µg/L 0 ZIPs Within guideline

Health Risk Profile for North Chicago

Current EPA monitoring data for North Chicago shows contaminant levels within guideline thresholds across all ZIP codes in this dataset. As with all public water systems, sensitive populations may choose to use a certified filter for additional peace of mind.

Best Broad-Spectrum Filters for This Water Profile

This city profile includes PFAS detections, chlorine disinfection, and other dissolved contaminants. Reverse osmosis (RO) systems certified under NSF/ANSI 58 provide broad reduction coverage; for PFAS specifically, confirm NSF/ANSI P473 or equivalent PFAS reduction certification.

Under-sink RO system

8-stage tankless RO system certified to NSF/ANSI 58, reduces 1,000+ contaminants including PFAS, lead, arsenic, fluoride, and nitrates.

See recommendations matched to your exact address: choose your ZIP code below.

Frequently Asked Questions about North Chicago Tap Water

Is North Chicago tap water safe to drink?

North Chicago tap water currently meets EPA health guidelines across all monitored ZIP codes in this dataset. Sensitive populations may still choose to use a certified filter as a precaution.

What contaminants are in North Chicago tap water?

The most commonly detected contaminants in North Chicago water systems include: lithium, PFTrDA, 11Cl-PF3OUdS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.

Where does North Chicago get its drinking water?

North Chicago receives water from 3 public water systems, including NORTH CHICAGO.

Do I need a water filter in North Chicago?

Current data does not show guideline exceedances in North Chicago. A certified filter can still reduce trace contaminants and improve taste for households that prefer filtered water.

How often is North Chicago tap water tested?

Public water systems in North Chicago are required by the EPA to test for regulated contaminants on schedules ranging from daily (for microbials and disinfectants) to annual or triennial (for many chemical contaminants). Results are published in annual Consumer Confidence Reports (CCRs). The data on this page reflects the most recent available EPA monitoring results, with the latest sample date of 2025-11-11.

Tap water reports by ZIP in North Chicago

Water utilities serving North Chicago, IL

Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.

Modeled boundaries are shown with a dashed outline.

Also covers / overlaps with