Is Danville, IL 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 Aqua Illinois-Vermilion County. 1 PFAS were detected below the limits.
Aqua Illinois-Vermilion County supplies Danville (30,106 people).
Water system
Aqua Illinois-Vermilion County
30,106 people · Surface water · EPA ID IL1835120
| 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: 9 ppb at the 90th percentile (Jun 2026, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0
Across Illinois, 13 of 479 water systems EPA tested had PFAS above a 2024 federal limit, and 18 systems were above the lead action level in results from the last five years. Illinois results.
Danville 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 Danville city (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Urbana 31 mi U of I-Champaign Water System | None above limits | 2.3 ppb |
| Champaign 35 mi Illinois American Water – Champaign | None above limits | 1 ppb |
| Decatur 73 mi Decatur Water System | None above limits | 0 ppb |
| Bloomington 75 mi Bloomington Water System | None above limits | 2.5 ppb |
| Normal 77 mi Normal Water System | None above limits | 3.7 ppb |
| Chicago Heights 94 mi Chicago Heights Water System | None above limits | 5.86 ppb |
Danville ZIP codes (1)
- 61832
Questions
Is Danville tap water safe to drink?
Aqua Illinois-Vermilion County 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 Danville, IL?
Aqua Illinois-Vermilion County, which serves 30,106 people.
Does Danville tap water have PFAS?
Aqua Illinois-Vermilion County had 1 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.
Do Danville homes have lead pipes?
Census estimates put 86% of Danville homes as built before 1980 (Illinois: 64%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Aqua Illinois-Vermilion County'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.