Is Plano Tap Water Safe? Quality Report

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

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
MON	Monitoring	Resolved	2025-05-01 → 2025-05-31
MON	Monitoring	Resolved	2025-05-01 → 2025-05-31
MON	Monitoring	Resolved	2025-05-01 → 2025-05-31
MON	Monitoring	Resolved	2025-05-01 → 2025-05-31
MR	Monitoring	Resolved	2025-05-01 → 2025-05-31
MR	Monitoring	Resolved	2025-05-01 → 2025-05-31
MR	Monitoring	Resolved	2025-05-01 → 2025-05-31
MR	Monitoring	Resolved	2025-05-01 → 2025-05-31
MON	Monitoring	Resolved	2025-04-01 → 2025-04-30
MON	Monitoring	Resolved	2025-04-01 → 2025-04-30

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
Copper	442.5 µg/L 34% of the EPA limit 1300 µg/L worst single sample: 800 µg/L	60/60	SYR4	2014–2017
Lead	10 µg/L 67% of the EPA limit 15 µg/L worst single sample: 190 µg/L	41/60	SYR4	2014–2017
Nitrate	2800 µg/L 28% of the EPA limit 10000 µg/L	30/62	SYR4	2012–2019
TTHM	20.7163 µg/L 26% of the EPA limit 80 µg/L worst single sample: 22.53 µg/L	28/28	SYR4	2012–2019
Bromodichloromethane	5.6904 µg/L No EPA limit set worst single sample: 7.16 µg/L	27/28	SYR4	2012–2019
Chloroform	5.7944 µg/L No EPA limit set worst single sample: 7.37 µg/L	27/28	SYR4	2012–2019
Dibromochloromethane	7.1608 µg/L No EPA limit set worst single sample: 7.83 µg/L	27/28	SYR4	2012–2019
Bromoform	4.0675 µg/L No EPA limit set worst single sample: 5.874 µg/L	26/28	SYR4	2012–2019
Dibromoacetic Acid	3.125 µg/L No EPA limit set worst single sample: 3.39 µg/L	24/28	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	4.3 µg/L 7.2% of the EPA limit 60 µg/L worst single sample: 10.8 µg/L	24/28	SYR4	2012–2019
Lead	0.0120 mg/L 80% of the EPA limit 0.0150 mg/L	17/17	LCR	2025
Barium	90 µg/L 4.5% of the EPA limit 2000 µg/L worst single sample: 93 µg/L	13/13	SYR4	2012–2019
1,1,1-Trichloroethane	1.344 µg/L 0.7% of the EPA limit 200 µg/L worst single sample: 1.6 µg/L	9/50	SYR4	2012–2019
Combined Radium (-226 And -228)	1.126 pCi/L 23% of the EPA limit 5 pCi/L worst single sample: 1.231 pCi/L	8/9	SYR4	2013–2019
Fluoride	1459 µg/L 36% of the EPA limit 4000 µg/L worst single sample: 1570 µg/L	7/13	SYR4	2012–2019
Nitrate-Nitrite	2770 µg/L 28% of the EPA limit 10000 µg/L worst single sample: 2800 µg/L	4/9	SYR4	2012–2018
Arsenic	1.48 µg/L 15% of the EPA limit 10 µg/L worst single sample: 1.5 µg/L	3/13	SYR4	2012–2019
Selenium	2.69 µg/L 5.4% of the EPA limit 50 µg/L worst single sample: 2.7 µg/L	3/13	SYR4	2012–2019
Trichloroacetic Acid	3.391 µg/L No EPA limit set worst single sample: 3.49 µg/L	3/28	SYR4	2012–2019
Dichloroacetic Acid	2.98 µg/L No EPA limit set	1/28	SYR4	2012–2019
Monobromoacetic Acid	1.75 µg/L No EPA limit set	1/28	SYR4	2012–2019

90 contaminants tested, none detected

1,1,2-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, TotalBromateChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloriteChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: BEYER, JOSH
Phone: 630-552-8275
Email: [email protected]

Frequently asked questions about Plano

Is Plano tap water safe to drink?

EPA monitoring detected 21 contaminants in Plano'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 Plano's water?

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

How many people does Plano serve?

Plano reports serving 12,600 people in Illinois, per its EPA record.

Has Plano had any water quality violations?

The EPA has 53 violations on file for Plano, of which 0 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.