Is Belleville, IL tap water safe?

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

No federal limits exceeded in EPA data for Illinois American Water – Homer Township.

7 public water systems serve parts of Belleville. The largest, Illinois American Water – Homer Township, serves 24,543 people. Your water bill names your system.

Largest system

Illinois American Water – Homer Township

24,543 people · Purchased surface water · EPA ID IL1970100

Buys treated water from Illinois American Water – Lake Water Company, Orland Park Water System.

PFAS	Highest average	Limit	Status
PFOA Not detected	–	4 ppt	Not detected
PFOS Not detected	–	4 ppt	Not detected
PFHxS Not detected	–	10 ppt	Not detected
PFNA Not detected	–	10 ppt	Not detected
HFPO-DA (GenX) Not detected	–	10 ppt	Not 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: 0 ppb at the 90th percentile (Dec 2025, 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.

Belleville homes and lead pipes

72%

of homes built before 1980 (Illinois 64%, US 50%)

35%

built before 1950 (Illinois 26%)

40%

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. Renting? Ask your landlord what the service line is made of, because it's their pipe to replace. How to check your own line.

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

Which system serves your ZIP code

Based on the ZIP codes each system reported serving. Boundaries don't follow ZIP lines exactly, so your water bill is the final word.

System	ZIP codes in Belleville
Illinois American Water – Homer Township 24,543 people	62223
Belcourt-Turtle Mountain Rural Water System 13,500 people	62220
Meadowbrook Mh Community, LLC 463 people	62226

Other water systems serving Belleville

Belcourt-Turtle Mountain Rural Water System
13,500 people · Groundwater · North Dakota · reported ZIPs here
Total trihalomethanes (TTHM) violationAlso: Lithium above screening level
Illinois American Water – Chicago Suburban
11,187 people · Purchased surface water · Illinois · reported ZIPs here
No PFAS above limits
Corinth Public Water District
3,927 people · Purchased surface water · Illinois · reported ZIPs here
No PFAS above limits
Illinois American Water – Alpine Heights
707 people · Purchased surface water · Illinois · reported ZIPs here
Not in EPA's PFAS sample
Meadowbrook Mh Community, LLC
463 people · Purchased surface water · Illinois · lists this city
Total trihalomethanes (TTHM) violationsAlso: Haloacetic acids (HAA5) violation
Arapaho Village MHP
368 people · Purchased surface water · Illinois · lists this city
Not in EPA's PFAS sample

How nearby cities compare

City	Main water system	PFAS	Lead (90th pct.)
O'Fallon 7 mi O'Fallon Water System	O'Fallon Water System	None above limits	0 ppb
Granite City 16 mi Illinois American Water – Granite City	Illinois American Water – Granite City	None above limits	6 ppb
Edwardsville 19 mi Edwardsville Water System	Edwardsville Water System	None above limits	0 ppb
Alton 28 mi Illinois American Water – Alton	Illinois American Water – Alton	None above limits	3 ppb
Springfield 90 mi Springfield Water System	Springfield Water System	None above limits	0 ppb
Decatur 109 mi Decatur Water System	Decatur Water System	None above limits	0 ppb

Questions

Is Belleville tap water safe to drink?

Illinois American Water – Homer Township 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 Belleville, IL?

7 public water systems serve parts of Belleville. The largest is Illinois American Water – Homer Township (24,543 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Belleville tap water have PFAS?

None detected above EPA's reporting limits. Illinois American Water – Homer Township 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 Belleville homes have lead pipes?

Census estimates put 72% of Belleville 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. Illinois American Water – Homer Township'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.