Tap Water Results

Is Lombard, 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 Lombard Water System.

3 public water systems serve parts of Lombard. The largest, Lombard Water System, serves 44,476 people. Your water bill names your system.

Largest system

Lombard Water System

44,476 people · Purchased surface water · EPA ID IL0430600

Buys treated water from Du Page Water Commission.

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: 10.6 ppb at the 90th percentile (Jun 2026, and 9 in 10 homes sampled were at or below it) Near 2027 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.

Lombard homes and lead pipes

66%
of homes built before 1980 (Illinois 64%, US 50%)
13%
built before 1950 (Illinois 26%)
29%
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 Lombard village (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Lombard

  • Illinois American Water – Valley View
    6,721 people · Purchased surface water · Illinois · reported ZIPs here
    PFOA detected
  • Illinois American Water – Lombard Heights
    679 people · Purchased surface water · Illinois · lists this city
    Not in EPA's PFAS sample

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Glen Ellyn 2 mi
Glen Ellyn Water System
Glen Ellyn Water SystemNone above limits1.87 ppb
Addison 4 mi
Addison Water System
Addison Water SystemNone above limits2 ppb
Elmhurst 4 mi
Elmhurst Water System
Elmhurst Water SystemNone above limits5.52 ppb
Glendale Heights 4 mi
Glendale Heights Water System
Glendale Heights Water SystemNone above limits0 ppb
Wheaton 5 mi
Wheaton Water System
Wheaton Water SystemNone above limits2.32 ppb
Downers Grove 5 mi
Downers Grove Water System
Downers Grove Water SystemNone above limits4.98 ppb
Lombard ZIP codes (1)
  • 60148

Questions

Is Lombard tap water safe to drink?

Lombard Water System 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 Lombard, IL?

3 public water systems serve parts of Lombard. The largest is Lombard Water System (44,476 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Lombard tap water have PFAS?

None detected above EPA's reporting limits. Lombard Water System 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 Lombard homes have lead pipes?

Census estimates put 66% of Lombard 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. Lombard Water System'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.