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Tap water quality report

Highland

EPA monitoring tested this supplier for 109 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
20
detected
10,674
people served
24
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Surface water
Ownership
Local government
Counties served
Madison

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.

24
health-based violations
47
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2010-01-01 → 2010-03-31
MCL Health-based Resolved 2010-01-01 → 2010-03-31
MCL Health-based Resolved 2010-01-01 → 2010-03-31
MCL Health-based Resolved 2010-01-01 → 2010-03-31
MCL Health-based Resolved 2010-01-01 → 2010-03-31
MCL Health-based Resolved 2010-01-01 → 2010-03-31
MCL Health-based Resolved 2009-10-01 → 2009-12-31
MCL Health-based Resolved 2009-10-01 → 2009-12-31
MCL Health-based Resolved 2009-10-01 → 2009-12-31
MCL Health-based Resolved 2009-10-01 → 2009-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0072 µg/L 3/4 2024

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
16 µg/L
No EPA limit set
 92/92 SYR4 2012–2019
Chloroform
87 µg/L
No EPA limit set
 92/92 SYR4 2012–2019
TTHM
105 µg/L 131%
of the EPA limit, in the worst sample — 80 µg/L
 92/92 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
70 µg/L 117%
of the EPA limit, in the worst sample — 60 µg/L
 85/92 SYR4 2012–2019
Trichloroacetic Acid
39 µg/L
No EPA limit set
 84/92 SYR4 2012–2019
Dichloroacetic Acid
34 µg/L
No EPA limit set
 81/92 SYR4 2012–2019
Dibromochloromethane
2.661 µg/L
No EPA limit set
 51/92 SYR4 2012–2019
Copper
590 µg/L 45%
of the EPA limit 1300 µg/L
 50/50 SYR4 2014–2017
Lead
0.0017 mg/L 11%
of the EPA limit 0.0150 mg/L
 23/23 LCR 2025
Lead
21 µg/L 140%
of the EPA limit, in the worst sample — 15 µg/L
 18/50 SYR4 2014–2017
Nitrate
2100 µg/L 21%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Monobromoacetic Acid
15.9 µg/L
No EPA limit set
 12/92 SYR4 2012–2019
Barium
58 µg/L 2.9%
of the EPA limit 2000 µg/L
 8/8 SYR4 2012–2019
Fluoride
1140 µg/L 28%
of the EPA limit 4000 µg/L
 8/8 SYR4 2012–2019
Nitrate-Nitrite
1200 µg/L 12%
of the EPA limit 10000 µg/L
 3/3 SYR4 2012–2018
Simazine
0.4600 µg/L 12%
of the EPA limit 4 µg/L
 3/21 SYR4 2012–2019
Monochloroacetic Acid
3.11 µg/L
No EPA limit set
 2/92 SYR4 2012–2019
Arsenic
1.1 µg/L 11%
of the EPA limit 10 µg/L
 1/8 SYR4 2012–2019
Combined Radium (-226 And -228)
0.8140 pCi/L 16%
of the EPA limit 5 pCi/L
 1/1 SYR4 2014
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, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GILLESPIE, WALTER (JOE) J.
Phone
618-654-6823
Email
jgillespie@highlandil.gov

Frequently asked questions about Highland

Is Highland tap water safe to drink?

EPA monitoring detected 20 contaminants in Highland'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's water?

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

How many people does Highland serve?

Highland reports serving 10,674 people in Illinois, per its EPA record.

Has Highland had any water quality violations?

The EPA has 47 violations on file for Highland, of which 24 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.