Is Brownsburg, IN 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 Brownsburg Water Works. 1 PFAS were detected below the limits.
Brownsburg Water Works supplies Brownsburg (31,250 people).
Water system
Brownsburg Water Works
31,250 people · Purchased surface water · EPA ID IN5232002
Buys treated water from Citizens Water – Indianapolis.
| 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 Indiana, 6 of 219 water systems EPA tested had PFAS above a 2024 federal limit, and 6 systems were above the lead action level in results from the last five years. Indiana results.
Brownsburg homes and lead pipes
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 Brownsburg town (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Plainfield 10 mi Plainfield Water Works | None above limits | 1.14 ppb |
| Zionsville 11 mi Citizens Water – Whitestown | None above limits | 0.33 ppb |
| Indianapolis 13 mi Citizens Water – Indianapolis | None above limits | 3.44 ppb |
| Carmel 15 mi Carmel Water Department | None above limits | 2.94 ppb |
| Westfield 19 mi Carmel Water Department | None above limits | 2.94 ppb |
| Lawrence 21 mi City of Lawrence Utilities | None above limits | 0.76 ppb |
Brownsburg ZIP codes (1)
- 46112
Questions
Is Brownsburg tap water safe to drink?
Brownsburg Water Works 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 Brownsburg, IN?
Brownsburg Water Works, which serves 31,250 people.
Does Brownsburg tap water have PFAS?
Brownsburg Water Works had 1 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.
Do Brownsburg homes have lead pipes?
Census estimates put 21% of Brownsburg homes as built before 1980 (Indiana: 55%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Brownsburg Water Works'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.