Is Highland Park Tap Water Safe? Quality Report

Water source: Surface 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	2005-04-01 → 2005-04-30
TT	Health-based	Resolved	2005-04-01 → 2005-04-30
TT	Health-based	Resolved	2005-04-01 → 2005-04-30
TT	Health-based	Resolved	2005-04-01 → 2005-04-30
TT	Health-based	Resolved	2005-04-01 → 2005-04-30
TT	Health-based	Resolved	2005-04-01 → 2005-04-30
TT	Health-based	Resolved	1995-01-01
TT	Health-based	Resolved	1995-01-01
TT	Health-based	Resolved	1995-01-01
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
Bromodichloromethane	12.15 µg/L No EPA limit set worst single sample: 13.5 µg/L	67/67	SYR4	2012–2019
Chloroform	33.81 µg/L No EPA limit set worst single sample: 37.9 µg/L	67/67	SYR4	2012–2019
TTHM	51.4 µg/L 64% of the EPA limit 80 µg/L worst single sample: 57.7 µg/L	67/67	SYR4	2012–2019
Dibromochloromethane	5.88575 µg/L No EPA limit set worst single sample: 6.756 µg/L	66/67	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	24.78 µg/L 41% of the EPA limit 60 µg/L worst single sample: 26.9 µg/L	63/67	SYR4	2012–2019
Trichloroacetic Acid	7.809 µg/L No EPA limit set worst single sample: 12.1 µg/L	63/67	SYR4	2012–2019
Copper	317.3 µg/L 24% of the EPA limit 1300 µg/L worst single sample: 377 µg/L	47/65	SYR4	2014–2019
Dichloroacetic Acid	15.15 µg/L No EPA limit set worst single sample: 17.6 µg/L	46/67	SYR4	2012–2019
Dibromoacetic Acid	1.888 µg/L No EPA limit set worst single sample: 2 µg/L	43/67	SYR4	2012–2019
Lead	19.3 µg/L 129% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 36.6 µg/L	37/65	SYR4	2014–2019
Lead	0.0110 mg/L 73% of the EPA limit 0.0150 mg/L	20/20	LCR	2025
Nitrate	530 µg/L 5.3% of the EPA limit 10000 µg/L	10/16	SYR4	2012–2019
Barium	23.6 µg/L 1.2% of the EPA limit 2000 µg/L worst single sample: 25 µg/L	8/8	SYR4	2012–2019
Fluoride	1200.5 µg/L 30% of the EPA limit 4000 µg/L worst single sample: 1260 µg/L	8/8	SYR4	2012–2019
Monobromoacetic Acid	4.886 µg/L No EPA limit set worst single sample: 6.02 µg/L	8/67	SYR4	2012–2019
Bromoform	1.8725 µg/L No EPA limit set worst single sample: 2.12 µg/L	6/67	SYR4	2012–2019
Monochloroacetic Acid	8.218 µg/L No EPA limit set worst single sample: 8.7 µg/L	3/67	SYR4	2012–2019
Arsenic	1.595 µg/L 16% of the EPA limit 10 µg/L worst single sample: 1.6 µg/L	2/8	SYR4	2012–2019
Nitrate-Nitrite	523 µg/L 5.2% of the EPA limit 10000 µg/L worst single sample: 530 µg/L	2/3	SYR4	2012–2018

89 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: BANNON, RON
Phone: 847-926-1144
Email: [email protected]

Frequently asked questions about Highland Park

Is Highland Park tap water safe to drink?

EPA monitoring detected 19 contaminants in Highland Park'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 Highland Park's water?

EPA monitoring detected Bromodichloromethane, Chloroform, TTHM, Dibromochloromethane, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Highland Park serve?

Highland Park reports serving 30,176 people in Illinois, per its EPA record.

Has Highland Park had any water quality violations?

The EPA has 10 violations on file for Highland Park, of which 9 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.