Is Montgomery Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Kane

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	Archived	1999-05-01 → 1999-05-31
MCL	Health-based	Archived	1999-05-01 → 1999-05-31
MCL	Health-based	Archived	1993-09-01 → 1993-09-30
MCL	Health-based	Archived	1993-09-01 → 1993-09-30
MCL	Health-based	Archived	1993-09-01 → 1993-09-30
MCL	Health-based	Archived	1993-09-01 → 1993-09-30
MCL	Health-based	Archived	1993-09-01 → 1993-09-30
MCL	Health-based	Archived	1993-09-01 → 1993-09-30
MCL	Health-based	Resolved	1990-12-01 → 1994-11-30
MCL	Health-based	Resolved	1990-12-01 → 1994-11-30

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	7.947 µg/L No EPA limit set worst single sample: 9.41 µg/L	35/42	SYR4	2012–2019
TTHM	26.758 µg/L 33% of the EPA limit 80 µg/L worst single sample: 30.9 µg/L	35/41	SYR4	2012–2019
Dibromochloromethane	9.3355 µg/L No EPA limit set worst single sample: 10.4 µg/L	34/41	SYR4	2012–2019
Chloroform	5.955 µg/L No EPA limit set worst single sample: 7.29 µg/L	31/42	SYR4	2012–2019
cis-1,2-Dichloroethylene	0.9150 µg/L 1.3% of the EPA limit 70 µg/L worst single sample: 1.08 µg/L	27/131	SYR4	2012–2019
Bromoform	6.975 µg/L No EPA limit set worst single sample: 9.5 µg/L	26/41	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	5 µg/L 8.3% of the EPA limit 60 µg/L worst single sample: 55.3 µg/L	25/41	SYR4	2012–2019
Copper	669 µg/L 51% of the EPA limit 1300 µg/L worst single sample: 886 µg/L	24/60	SYR4	2014–2017
Dibromoacetic Acid	2.1 µg/L No EPA limit set worst single sample: 2.2 µg/L	21/41	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	18/18	LCR	2025
Nitrate	542 µg/L 5.4% of the EPA limit 10000 µg/L	18/52	SYR4	2012–2019
Vinyl Chloride	1.323 µg/L 66% of the EPA limit 2 µg/L worst single sample: 1.34 µg/L	18/131	SYR4	2012–2019
Combined Radium (-226 And -228)	4.94 pCi/L 99% of the EPA limit 5 pCi/L worst single sample: 5.1 pCi/L	17/18	SYR4	2012–2019
Dichloroacetic Acid	2.06 µg/L No EPA limit set worst single sample: 2.2 µg/L	15/41	SYR4	2012–2019
Fluoride	1272 µg/L 32% of the EPA limit 4000 µg/L worst single sample: 1280 µg/L	9/9	SYR4	2012–2018
Lead	17.64 µg/L 118% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 19.2 µg/L	9/60	SYR4	2014–2017
Nitrate-Nitrite	493.05 µg/L 4.9% of the EPA limit 10000 µg/L worst single sample: 506 µg/L	8/18	SYR4	2012–2017
Barium	54.525 µg/L 2.7% of the EPA limit 2000 µg/L worst single sample: 57.5 µg/L	6/9	SYR4	2012–2018
Lithium	32.7 µg/L No EPA limit set	6/6	UCMR-5	2025
Xylenes, Total	2.292 µg/L 0% of the EPA limit 10000 µg/L worst single sample: 2.6 µg/L	5/131	SYR4	2012–2019
Monobromoacetic Acid	2.0455 µg/L No EPA limit set worst single sample: 2.2 µg/L	4/41	SYR4	2012–2019
Trichloroacetic Acid	2.5985 µg/L No EPA limit set worst single sample: 2.81 µg/L	4/41	SYR4	2012–2019
Arsenic	2.68 µg/L 27% of the EPA limit 10 µg/L	1/9	SYR4	2012–2018
Mercury	0.2400 µg/L 12% of the EPA limit 2 µg/L	1/9	SYR4	2012–2018
Monochloroacetic Acid	53.2 µg/L No EPA limit set	1/41	SYR4	2012–2019

83 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 TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: WOLF, MARK
Phone: 630-896-9241
Email: [email protected]

Frequently asked questions about Montgomery

Is Montgomery tap water safe to drink?

EPA monitoring detected 25 contaminants in Montgomery'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 Montgomery's water?

EPA monitoring detected Bromodichloromethane, TTHM, Dibromochloromethane, Chloroform, cis-1,2-Dichloroethylene, and others. The full list with the level and data source for each is above.

How many people does Montgomery serve?

Montgomery reports serving 28,956 people in Illinois, per its EPA record.

Has Montgomery had any water quality violations?

The EPA has 46 violations on file for Montgomery, of which 33 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.