Is Cicero Tap Water Safe? Quality Report

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

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
TT	Health-based	Resolved	2024-10-17
TT	Health-based	Resolved	2024-10-17
TT	Health-based	Resolved	2024-10-17
TT	Health-based	Resolved	2024-10-17
MCL	Health-based	Archived	1993-03-01 → 1993-03-31
MCL	Health-based	Archived	1993-03-01 → 1993-03-31
TT	Health-based	Resolved	1992-12-07
TT	Health-based	Resolved	1992-12-07
MR	Monitoring	Unaddressed	2026-01-01
MR	Monitoring	Unaddressed	2026-01-01

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Bromodichloromethane	12.14 µg/L No EPA limit set worst single sample: 15.9 µg/L	157/157	SYR4	2012–2019
Chloroform	20.22 µg/L No EPA limit set worst single sample: 34.1 µg/L	157/157	SYR4	2012–2019
Dibromochloromethane	6.43 µg/L No EPA limit set worst single sample: 8.23 µg/L	157/157	SYR4	2012–2019
Dichloroacetic Acid	8.158 µg/L No EPA limit set worst single sample: 11.6 µg/L	157/157	SYR4	2012–2019
TTHM	38.98 µg/L 49% of the EPA limit 80 µg/L worst single sample: 57.1 µg/L	157/157	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	17.954 µg/L 30% of the EPA limit 60 µg/L worst single sample: 24.9 µg/L	157/157	SYR4	2012–2019
Trichloroacetic Acid	8.4275 µg/L No EPA limit set worst single sample: 10.5 µg/L	156/157	SYR4	2012–2019
Monobromoacetic Acid	2.076 µg/L No EPA limit set worst single sample: 2.75 µg/L	109/157	SYR4	2012–2019
Lead	15.21 µg/L 101% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 39.9 µg/L	83/180	SYR4	2014–2019
Dibromoacetic Acid	1.548 µg/L No EPA limit set worst single sample: 1.58 µg/L	45/157	SYR4	2012–2019
Lead	0.0050 mg/L 33% of the EPA limit 0.0150 mg/L	27/27	LCR	2026
Copper	347.7 µg/L 27% of the EPA limit 1300 µg/L worst single sample: 492 µg/L	14/180	SYR4	2014–2019
Monochloroacetic Acid	4.883 µg/L No EPA limit set worst single sample: 4.91 µg/L	10/157	SYR4	2012–2019

31 contaminants tested, none detected

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Utility contact

Contact: VIRRUSO, JOSEPH
Phone: 708-656-3600
Email: [email protected]

Frequently asked questions about Cicero

Is Cicero tap water safe to drink?

EPA monitoring detected 13 contaminants in Cicero'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 Cicero's water?

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

How many people does Cicero serve?

Cicero reports serving 83,000 people in Illinois, per its EPA record.

Has Cicero had any water quality violations?

The EPA has 48 violations on file for Cicero, of which 8 are health-based (a contaminant limit or required treatment was breached) and 6 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.