Is Round Lake Beach, 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 Round Lake Beach Water System.
Round Lake Beach Water System supplies Round Lake Beach (27,200 people).
Water system
Round Lake Beach Water System
27,200 people · Purchased surface water · EPA ID IL0971550
Buys treated water from Central Lake County Jawa.
| 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: 4.6 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 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.
Round Lake Beach 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 Round Lake Beach village (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Gurnee 7 mi Gurnee Water System | None above limits | 0.3 ppb |
| Mundelein 9 mi Mundelein Water System | None above limits | 4.3 ppb |
| Waukegan 11 mi Waukegan Water System | None above limits | 10 ppb |
| McHenry 11 mi McHenry Water System | None above limits | 6.7 ppb |
| Vernon Hills 12 mi Vernon Hills – Lake County Public Works | None above limits | 0 ppb |
| North Chicago 12 mi Great Lakes Naval Training Station Water System | None above limits | 0 ppb |
Round Lake Beach ZIP codes (1)
- 60073
Questions
Is Round Lake Beach tap water safe to drink?
Round Lake Beach 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 Round Lake Beach, IL?
Round Lake Beach Water System, which serves 27,200 people.
Does Round Lake Beach tap water have PFAS?
None detected above EPA's reporting limits. Round Lake Beach 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 Round Lake Beach homes have lead pipes?
Census estimates put 43% of Round Lake Beach 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. Round Lake Beach 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.