Is Auburn Hills, 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 Auburn Hills Water System. 1 PFAS were detected below the limits.
Auburn Hills Water System supplies Auburn Hills (21,412 people).
Water system
Auburn Hills Water System
21,412 people · Purchased surface water · EPA ID MI0005450
Buys treated water from Great Lakes Water Authority.
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS Not detected | – | 4 ppt |
| PFHxS Not detected | – | 10 ppt |
| PFNA Not detected | – | 10 ppt |
| HFPO-DA (GenX) Not detected | – | 10 ppt |
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 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.
Auburn Hills homes and lead pipes
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 Auburn Hills city (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Pontiac 3 mi Pontiac Water System | None above limits | 1.6 ppb |
| Rochester Hills 4 mi Rochester Hills Water System | None above limits | 1.3 ppb |
| Orion charter 6 mi Orion Township Water System | None above limits | 0 ppb |
| Waterford charter 7 mi Waterford Township | None above limits | 1 ppb |
| Troy 8 mi Troy Water System | None above limits | 0 ppb |
| Independence charter 9 mi Orion Township Water System | None above limits | 0 ppb |
Auburn Hills ZIP codes (1)
- 48326
Questions
Is Auburn Hills tap water safe to drink?
Auburn Hills 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 Auburn Hills, MI?
Auburn Hills Water System, which serves 21,412 people.
Does Auburn Hills tap water have PFAS?
Auburn Hills Water System had 1 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.
Do Auburn Hills homes have lead pipes?
Census estimates put 34% of Auburn Hills 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. Auburn Hills 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.