Tap Water Results

Is Niles, IL tap water safe?

Data: U.S. EPA · How we read the data · How we check it

Summary

No federal limits exceeded in EPA data for Aqua Illinois-North Maine Utilities.

3 public water systems serve parts of Niles. The largest, Aqua Illinois-North Maine Utilities, serves 30,043 people. Your water bill names your system.

Largest system

Aqua Illinois-North Maine Utilities

30,043 people · Purchased surface water · EPA ID IL0315350

Buys treated water from Niles Water System, Des Plaines Water System, Morton Grove Water System, Glenview Water System.

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
Not detected
–4 pptNot detected
PFHxS
Not detected
–10 pptNot detected
PFNA
Not detected
–10 pptNot detected
HFPO-DA (GenX)
Not detected
–10 pptNot detected

ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.

Lead: 1 ppb at the 90th percentile (Jun 2026, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0

Across Illinois, 13 of 479 water systems EPA tested had PFAS above a 2024 federal limit, and 18 systems were above the lead action level in results from the last five years. Illinois results.

Niles homes and lead pipes

77%
of homes built before 1980 (Illinois 64%, US 50%)
7%
built before 1950 (Illinois 26%)
25%
of households rent (Illinois 33%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.

Housing: Census American Community Survey 2020–2024 5-year estimates for Niles village (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Niles

  • Niles Water System
    29,350 people · Purchased surface water · Illinois · lists this city
    No PFAS above limits
  • Morton Grove – Niles Water Commission
    Wholesale supplier (sells water to other systems) · Purchased surface water · Illinois · lists this city
    Not in EPA's PFAS sample

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Park Ridge 2 mi
Park Ridge Water System
Park Ridge Water SystemNone above limits6.79 ppb
Skokie 4 mi
Skokie Water System
Skokie Water SystemNone above limits9.77 ppb
Glenview 4 mi
Glenview Water System
Glenview Water SystemNone above limits10 ppb
Des Plaines 5 mi
Des Plaines Water System
Des Plaines Water SystemNone above limits5.7 ppb
Wilmette 5 mi
Wilmette Water System
Wilmette Water SystemNone above limits6 ppb
Evanston 6 mi
Evanston Water System
Evanston Water SystemNone above limits6.5 ppb
Niles ZIP codes (1)
  • 60714

Questions

Is Niles tap water safe to drink?

Aqua Illinois-North Maine Utilities has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.

Who supplies water in Niles, IL?

3 public water systems serve parts of Niles. The largest is Aqua Illinois-North Maine Utilities (30,043 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Niles tap water have PFAS?

None detected above EPA's reporting limits. Aqua Illinois-North Maine Utilities had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.

Do Niles homes have lead pipes?

Census estimates put 77% of Niles homes as built before 1980 (Illinois: 64%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Aqua Illinois-North Maine Utilities's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.