Tap Water Results

Is Warren, OH 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 Warren City Public Water System. 1 PFAS were detected below the limits.

3 public water systems serve parts of Warren. The largest, Warren City Public Water System, serves 49,130 people, and one system here had PFAS above a federal limit. Your water bill names your system.

Largest system

Warren City Public Water System

49,130 people · Surface water · EPA ID OH7803811

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: 3.7 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 Ohio, 35 of 331 water systems EPA tested had PFAS above a 2024 federal limit, and 3 systems were above the lead action level in results from the last five years. Ohio results.

Warren homes and lead pipes

90%
of homes built before 1980 (Ohio 63%, US 50%)
36%
built before 1950 (Ohio 25%)
44%
of households rent (Ohio 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 Warren 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.

SystemZIP codes in Warren
Warren City Public Water System
49,130 people
44483
Trumbull County – Bazetta/Champion
8,270 people
44485

Other water systems serving Warren

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Youngstown 13 mi
Youngstown City Public Water System
Youngstown City Public Water SystemNone above limits0 ppb
Kent 29 mi
Akron City Public Water System
Akron City Public Water SystemNone above limits2.67 ppb
Stow 32 mi
Akron City Public Water System
Akron City Public Water SystemNone above limits2.67 ppb
Akron 38 mi
Akron City Public Water System
Akron City Public Water SystemNone above limits2.67 ppb
Cuyahoga Falls 38 mi
Akron City Public Water System
Akron City Public Water SystemNone above limits2.67 ppb
Green 39 mi
Akron City Public Water System
Akron City Public Water SystemNone above limits2.67 ppb

Questions

Is Warren tap water safe to drink?

Warren City Public 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 Warren, OH?

3 public water systems serve parts of Warren. The largest is Warren City Public Water System (49,130 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Warren tap water have PFAS?

Warren City Public Water System had 1 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.

Do Warren homes have lead pipes?

Census estimates put 90% of Warren homes as built before 1980 (Ohio: 63%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Warren City Public 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.