Tap Water Results

Is Grand Blanc charter, MI 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 Genesee County Water System.

2 public water systems serve parts of Grand Blanc charter. The largest, Genesee County Water System, serves 73,726 people. Your water bill names your system.

Largest system

Genesee County Water System

73,726 people · Purchased surface water · EPA ID MI0002615

Buys treated water from Karegnondi Water Authority.

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: 0 ppb at the 90th percentile (Dec 2024, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 1

Full Genesee County Water System results

Across Michigan, 5 of 311 water systems EPA tested had PFAS above a 2024 federal limit, and 26 systems were above the lead action level in results from the last five years. Michigan results.

Grand Blanc charter homes and lead pipes

47%
of homes built before 1980 (Michigan 62%, US 50%)
4%
built before 1950 (Michigan 22%)
30%
of households rent (Michigan 27%)

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 Grand Blanc charter township (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Grand Blanc charter

  • Charter Township of Grand Blanc Water System
    21,000 people · Purchased surface water · Michigan · reported ZIPs here
    No PFAS above limitsAlso: 1 health-based violation since 2016

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Burton 6 mi
City of Burton
City of BurtonNone above limits0 ppb
Flint 8 mi
City of Flint
City of FlintNone above limits3 ppb
Flint charter 9 mi
Genesee County Water System
Genesee County Water SystemNone above limits0 ppb
Independence charter 17 mi
Orion Township Water System
Orion Township Water SystemNone above limits0 ppb
White Lake charter 19 mi
White Lake Township Water System
White Lake Township Water SystemNone above limits3 ppb
Waterford charter 21 mi
Waterford Township
Waterford TownshipNone above limits1 ppb
Grand Blanc charter ZIP codes (1)
  • 48439

Questions

Is Grand Blanc charter tap water safe to drink?

Genesee County 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 Grand Blanc charter, MI?

2 public water systems serve parts of Grand Blanc charter. The largest is Genesee County Water System (73,726 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Grand Blanc charter tap water have PFAS?

None detected above EPA's reporting limits. Genesee County 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 Grand Blanc charter homes have lead pipes?

Census estimates put 47% of Grand Blanc charter homes as built before 1980 (Michigan: 62%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Genesee County 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.