Is Iola Waterworks Tap Water Safe? Quality Report

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

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	Resolved	2001-04-01 → 2001-04-30
MCL	Health-based	Resolved	2001-04-01 → 2001-04-30
MCL	Health-based	Resolved	2001-04-01 → 2001-04-30
MCL	Health-based	Resolved	2001-04-01 → 2001-04-30
MCL	Health-based	Resolved	1999-08-01 → 1999-08-31
MCL	Health-based	Resolved	1999-08-01 → 1999-08-31
MCL	Health-based	Resolved	1999-08-01 → 1999-08-31
MCL	Health-based	Resolved	1999-08-01 → 1999-08-31
MR	Monitoring	Resolved	2011-10-01 → 2011-12-31
MR	Monitoring	Resolved	2011-10-01 → 2011-12-31

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
Nitrate	4195 µg/L 42% of the EPA limit 10000 µg/L worst single sample: 4250 µg/L	32/32	SYR4	2012–2019
Copper	238.2 µg/L 18% of the EPA limit 1300 µg/L worst single sample: 319 µg/L	17/20	SYR4	2014–2017
Lead	0.0120 mg/L 80% of the EPA limit 0.0150 mg/L	14/14	LCR	2023
Lead	6.329 µg/L 42% of the EPA limit 15 µg/L worst single sample: 7.31 µg/L	10/20	SYR4	2014–2017
Bromodichloromethane	4.4625 µg/L No EPA limit set worst single sample: 4.9 µg/L	6/6	SYR4	2014–2019
Chloroform	4.7925 µg/L No EPA limit set worst single sample: 5.52 µg/L	6/6	SYR4	2014–2019
Monochloroacetic Acid	12.97 µg/L No EPA limit set worst single sample: 15 µg/L	6/6	SYR4	2014–2019
TTHM	12.605 µg/L 16% of the EPA limit 80 µg/L worst single sample: 13.48 µg/L	6/6	SYR4	2014–2019
Total Haloacetic Acids (HAA5)	14.799 µg/L 25% of the EPA limit 60 µg/L worst single sample: 17.005 µg/L	6/6	SYR4	2014–2019
Dibromochloromethane	6.348 µg/L No EPA limit set worst single sample: 7.14 µg/L	5/6	SYR4	2014–2019
Barium	178.765 µg/L 8.9% of the EPA limit 2000 µg/L worst single sample: 202 µg/L	4/4	SYR4	2014–2017
Nitrate-Nitrite	4167.5 µg/L 42% of the EPA limit 10000 µg/L worst single sample: 4250 µg/L	4/4	SYR4	2014–2017
Bromoform	2.0185 µg/L No EPA limit set worst single sample: 2.07 µg/L	2/6	SYR4	2014–2019
Combined Radium (-226 And -228)	1.909 pCi/L 38% of the EPA limit 5 pCi/L worst single sample: 2 pCi/L	2/2	SYR4	2014
Fluoride	308 µg/L 7.7% of the EPA limit 4000 µg/L worst single sample: 320 µg/L	2/4	SYR4	2014–2017
Gross Alpha, Excl. Radon And U	4.43 pCi/L 30% of the EPA limit 15 pCi/L worst single sample: 4.6 pCi/L	2/2	SYR4	2014
Selenium	0.9900 µg/L 2% of the EPA limit 50 µg/L worst single sample: 1 µg/L	2/4	SYR4	2014–2017
Tetrachloroethylene	0.4031 µg/L 8.1% of the EPA limit 5 µg/L worst single sample: 0.4120 µg/L	2/6	SYR4	2012–2017
Trichloroacetic Acid	0.8770 µg/L No EPA limit set worst single sample: 0.8850 µg/L	2/6	SYR4	2014–2019
Thallium, Total	0.5000 µg/L 25% of the EPA limit 2 µg/L	1/4	SYR4	2014–2017

54 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDibromoacetic AcidDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

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Frequently asked questions about Iola Waterworks

Is Iola Waterworks tap water safe to drink?

EPA monitoring detected 20 contaminants in Iola Waterworks'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 Iola Waterworks's water?

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

How many people does Iola Waterworks serve?

Iola Waterworks reports serving 1,249 people in Wisconsin, per its EPA record.

Has Iola Waterworks had any water quality violations?

The EPA has 19 violations on file for Iola Waterworks, of which 8 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.