Tap Water Results

Is Grove City, 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 Columbus Public Water System. 6 PFAS were detected below the limits.

2 public water systems serve parts of Grove City. The largest, Columbus Public Water System, serves 1.3 million people. Your water bill names your system.

Largest system

Columbus Public Water System

1.3 million people · Surface water · EPA ID OH2504412

PFASHighest averageLimitStatus
PFOA
One sample above limit
1.32 ppt4 pptOne sample above limit
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: 1.2 ppb at the 90th percentile (Dec 2023, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 1

Full Columbus Public Water System results

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.

Grove City homes and lead pipes

33%
of homes built before 1980 (Ohio 63%, US 50%)
6%
built before 1950 (Ohio 25%)
29%
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. Columbus Public Water System's service line inventory lists 23,512 lead lines and 17,916 galvanized lines that need replacing (as of 2026-11-06). Look up your address. How to check your own line.

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

Other water systems serving Grove City

  • Timberlake Water System
    1,600 people · Groundwater · Ohio · reported ZIPs here
    No PFAS above limitsAlso: 1 health-based violation since 2016

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Columbus 9 mi
Columbus Public Water System
Columbus Public Water SystemNone above limits1.2 ppb
Gahanna 15 mi
Gahanna City Public Water System
Gahanna City Public Water SystemNone above limits0.5 ppb
Reynoldsburg 16 mi
Reynoldsburg City Public Water System
Reynoldsburg City Public Water SystemNone above limits2.1 ppb
Pickerington 16 mi
Pickerington City Public Water System
Pickerington City Public Water SystemNone above limits0.6 ppb
Dublin 18 mi
Del-Co Water Company, Inc.
Del-Co Water Company, Inc.None above limits0.82 ppb
Westerville 20 mi
Del-Co Water Company, Inc.
Del-Co Water Company, Inc.None above limits0.82 ppb
Grove City ZIP codes (1)
  • 43123

Questions

Is Grove City tap water safe to drink?

Columbus Public Water System had 1 health-based violation 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 Grove City, OH?

2 public water systems serve parts of Grove City. The largest is Columbus Public Water System (1.3 million people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Grove City tap water have PFAS?

Columbus Public Water System had 6 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.

Do Grove City homes have lead pipes?

Census estimates put 33% of Grove City 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. Columbus Public Water System's service line inventory lists 23,512 lead lines. 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.