Is Plainfield Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Will

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.

142

health-based violations

179

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2004-01-01 → 2004-03-31
MCL	Health-based	Resolved	2004-01-01 → 2004-03-31
MCL	Health-based	Resolved	2004-01-01 → 2004-03-31
MCL	Health-based	Resolved	2004-01-01 → 2004-03-31
MCL	Health-based	Resolved	2004-01-01 → 2004-03-31
MCL	Health-based	Resolved	2004-01-01 → 2004-03-31
MCL	Health-based	Resolved	2003-10-01 → 2003-12-31
MCL	Health-based	Resolved	2003-10-01 → 2003-12-31
MCL	Health-based	Resolved	2003-10-01 → 2003-12-31
MCL	Health-based	Resolved	2003-10-01 → 2003-12-31

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	15.45 µg/L No EPA limit set worst single sample: 17 µg/L	119/119	SYR4	2012–2019
Chloroform	45.44 µg/L No EPA limit set worst single sample: 52.7 µg/L	119/119	SYR4	2012–2019
Dibromochloromethane	7.32 µg/L No EPA limit set worst single sample: 8.3 µg/L	119/119	SYR4	2012–2019
Dichloroacetic Acid	10.44 µg/L No EPA limit set worst single sample: 12.6 µg/L	119/119	SYR4	2012–2019
TTHM	66.74 µg/L 83% of the EPA limit 80 µg/L worst single sample: 76.8 µg/L	119/119	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	20.22 µg/L 34% of the EPA limit 60 µg/L worst single sample: 23.6 µg/L	119/119	SYR4	2012–2019
Trichloroacetic Acid	8.98 µg/L No EPA limit set worst single sample: 10.9 µg/L	105/119	SYR4	2012–2019
Dibromoacetic Acid	1.665 µg/L No EPA limit set worst single sample: 2 µg/L	68/119	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	27/27	LCR	2025
Lead	385.63 µg/L 2571% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 682 µg/L	10/90	SYR4	2012–2018
Copper	595.55 µg/L 46% of the EPA limit 1300 µg/L worst single sample: 738 µg/L	8/90	SYR4	2012–2018

33 contaminants tested, none detected

11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaBromoformHfpo-DaMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaLithium

Utility contact

Contact: THREEWITT, SCOTT R
Phone: 815-436-3577
Email: [email protected]

Frequently asked questions about Plainfield

Is Plainfield tap water safe to drink?

EPA monitoring detected 11 contaminants in Plainfield'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 Plainfield's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.

How many people does Plainfield serve?

Plainfield reports serving 50,000 people in Illinois, per its EPA record.

Has Plainfield had any water quality violations?

The EPA has 179 violations on file for Plainfield, of which 142 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.