Is Barrington Tap Water Safe? Quality Report

Water source: Ground water
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
TT	Health-based	Resolved	1993-04-27
MR	Monitoring	Archived	1998-08-01 → 1998-08-31
MR	Monitoring	Archived	1998-08-01 → 1998-08-31
MR	Monitoring	Archived	1977-06-30 → 1981-06-29

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
Copper	1358 µg/L 104% of the EPA limit, at the 95th percentile of samples — 1300 µg/L worst single sample: 1820 µg/L	68/90	SYR4	2012–2018
Lead	0.0092 mg/L 61% of the EPA limit 0.0150 mg/L	49/49	LCR	2026
Lead	27.43 µg/L 183% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 73.9 µg/L	34/90	SYR4	2012–2018
Chloroform	1.3531 µg/L No EPA limit set worst single sample: 1.751 µg/L	27/27	SYR4	2013–2019
TTHM	2.8985 µg/L 3.6% of the EPA limit 80 µg/L worst single sample: 3.258 µg/L	27/27	SYR4	2013–2019
Bromodichloromethane	1.1326 µg/L No EPA limit set worst single sample: 1.223 µg/L	17/27	SYR4	2013–2019
Barium	93.5 µg/L 4.7% of the EPA limit 2000 µg/L worst single sample: 94 µg/L	6/6	SYR4	2012–2018
Fluoride	992.25 µg/L 25% of the EPA limit 4000 µg/L worst single sample: 1010 µg/L	6/6	SYR4	2012–2018
Total Haloacetic Acids (HAA5)	3.955 µg/L 6.6% of the EPA limit 60 µg/L worst single sample: 4.6 µg/L	6/27	SYR4	2013–2019
Lithium	12 µg/L No EPA limit set	4/4	UCMR-5	2023
Dibromoacetic Acid	1.19 µg/L No EPA limit set worst single sample: 1.2 µg/L	3/27	SYR4	2013–2019
Dibromochloromethane	0.7348 µg/L No EPA limit set worst single sample: 0.7426 µg/L	3/27	SYR4	2013–2019
Monobromoacetic Acid	4.471 µg/L No EPA limit set worst single sample: 4.6 µg/L	2/27	SYR4	2013–2019
Dichloroacetic Acid	1.02 µg/L No EPA limit set	1/27	SYR4	2013–2019

65 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBenzeneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumCombined Radium (-226 And -228)DichloromethaneEthylbenzeneHfpo-DaMercuryMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitrateNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: FECSKE, KEVIN
Phone: 847-304-3358
Email: [email protected]

Frequently asked questions about Barrington

Is Barrington tap water safe to drink?

EPA monitoring detected 14 contaminants in Barrington'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 Barrington's water?

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

How many people does Barrington serve?

Barrington reports serving 10,327 people in Illinois, per its EPA record.

Has Barrington had any water quality violations?

The EPA has 4 violations on file for Barrington, of which 1 is 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.