Is Round Lake Beach Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Lake

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2014-07-01 → 2014-07-31
MCL	Health-based	Resolved	2014-07-01 → 2014-07-31
MCL	Health-based	Resolved	2014-07-01 → 2014-07-31
MCL	Health-based	Resolved	2014-07-01 → 2014-07-31
MCL	Health-based	Resolved	2006-07-01 → 2006-07-31
MCL	Health-based	Resolved	2006-07-01 → 2006-07-31
MCL	Health-based	Resolved	2006-07-01 → 2006-07-31
MCL	Health-based	Resolved	2006-07-01 → 2006-07-31
MCL	Health-based	Resolved	1985-12-09 → 1989-12-08
MCL	Health-based	Resolved	1985-12-09 → 1989-12-08

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Bromodichloromethane	9.93 µg/L No EPA limit set	67/67	SYR4	2012–2019
Chloroform	23.1 µg/L No EPA limit set	67/67	SYR4	2012–2019
Dibromochloromethane	6.84 µg/L No EPA limit set	67/67	SYR4	2012–2019
TTHM	39 µg/L 49% of the EPA limit 80 µg/L	67/67	SYR4	2012–2019
Bromoform	3.414 µg/L No EPA limit set	62/67	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	11.1 µg/L 19% of the EPA limit 60 µg/L	57/67	SYR4	2012–2019
Dibromoacetic Acid	2.18 µg/L No EPA limit set	36/67	SYR4	2012–2019
Copper	600 µg/L 46% of the EPA limit 1300 µg/L	33/60	SYR4	2014–2017
Trichloroacetic Acid	4.75 µg/L No EPA limit set	30/67	SYR4	2012–2019
Dichloroacetic Acid	6.7 µg/L No EPA limit set	19/67	SYR4	2012–2019
Lead	0.0046 mg/L 31% of the EPA limit 0.0150 mg/L	18/18	LCR	2025
Lead	3.4 µg/L 23% of the EPA limit 15 µg/L	4/60	SYR4	2014–2017
Monobromoacetic Acid	2.58 µg/L No EPA limit set	4/67	SYR4	2012–2019
Monochloroacetic Acid	7.8 µg/L No EPA limit set	1/67	SYR4	2012–2019

30 contaminants tested, none detected

11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaLithium

Utility contact

Contact: HILTS, SCOTT
Phone: 847-546-8752
Email: SHILTS@ROUNDLAKEBEACHIL.GOV

Frequently asked questions about Round Lake Beach

Is Round Lake Beach tap water safe to drink?

EPA monitoring detected 14 contaminants in Round Lake Beach's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Round Lake Beach's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Bromoform, and others. The full list with the level and data source for each is above.

How many people does Round Lake Beach serve?

Round Lake Beach reports serving 27,200 people in Illinois, per its EPA record.

Has Round Lake Beach had any water quality violations?

The EPA has 31 violations on file for Round Lake Beach, of which 15 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.