Is Piqua City Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: Miami

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	2015-07-01 → 2015-09-30
MCL	Health-based	Resolved	2015-07-01 → 2015-09-30
MCL	Health-based	Resolved	2015-07-01 → 2015-09-30
MCL	Health-based	Resolved	2015-07-01 → 2015-09-30
MCL	Health-based	Resolved	2012-01-01 → 2012-03-31
MCL	Health-based	Resolved	2012-01-01 → 2012-03-31
MCL	Health-based	Resolved	2012-01-01 → 2012-03-31
MCL	Health-based	Resolved	2012-01-01 → 2012-03-31
MCL	Health-based	Resolved	2011-10-01 → 2011-12-31
MCL	Health-based	Resolved	2011-10-01 → 2011-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfpea	0.0031 µg/L	1/4	2025

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	4102 µg/L 41% of the EPA limit 10000 µg/L worst single sample: 7160 µg/L	188/192	SYR4	2012–2019
Copper	110.8 µg/L 8.5% of the EPA limit 1300 µg/L worst single sample: 4900 µg/L	149/214	SYR4	2012–2019
Bromodichloromethane	17.904 µg/L No EPA limit set worst single sample: 23.4 µg/L	148/148	SYR4	2012–2019
Chloroform	77.0975 µg/L No EPA limit set worst single sample: 127.45 µg/L	148/148	SYR4	2012–2019
Dichloroacetic Acid	25.23 µg/L No EPA limit set worst single sample: 31 µg/L	148/148	SYR4	2012–2019
Dibromochloromethane	7.5 µg/L No EPA limit set worst single sample: 12.6 µg/L	147/148	SYR4	2012–2019
TTHM	98.68 µg/L 123% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 146.9 µg/L	145/145	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	35.2675 µg/L 59% of the EPA limit 60 µg/L worst single sample: 45.74 µg/L	138/148	SYR4	2012–2019
Trichloroacetic Acid	5.727 µg/L No EPA limit set worst single sample: 8.13 µg/L	127/146	SYR4	2012–2019
Dibromoacetic Acid	2.993 µg/L No EPA limit set worst single sample: 3.7 µg/L	95/148	SYR4	2012–2019
Nitrate-Nitrite	4078 µg/L 41% of the EPA limit 10000 µg/L worst single sample: 7160 µg/L	94/96	SYR4	2012–2019
Bromoform	1.728 µg/L No EPA limit set worst single sample: 52.4 µg/L	54/148	SYR4	2012–2019
Lead	11.7 µg/L 78% of the EPA limit 15 µg/L worst single sample: 13.9 µg/L	27/213	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	26/26	LCR	2025
Monochloroacetic Acid	6.3775 µg/L No EPA limit set worst single sample: 51.38 µg/L	26/149	SYR4	2012–2019
Atrazine	2.322 µg/L 77% of the EPA limit 3 µg/L worst single sample: 2.52 µg/L	19/48	SYR4	2012–2019
Simazine	1.0695 µg/L 27% of the EPA limit 4 µg/L worst single sample: 1.7 µg/L	14/48	SYR4	2012–2019
Barium	172 µg/L 8.6% of the EPA limit 2000 µg/L worst single sample: 200 µg/L	8/8	SYR4	2012–2019
Fluoride	1055.5 µg/L 26% of the EPA limit 4000 µg/L worst single sample: 1080 µg/L	8/8	SYR4	2012–2019
Gross Beta Particle Activity	6.16 pCi/L No EPA limit set	1/8	SYR4	2012–2019
Monobromoacetic Acid	2.14 µg/L No EPA limit set	1/149	SYR4	2012–2019

62 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumCombined Radium (-226 And -228)DichloromethaneEthylbenzeneHfpo-DaLassoMercuryNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: STEVENS, JON
Phone: 937-778-2090
Email: [email protected]

Frequently asked questions about Piqua City

Is Piqua City tap water safe to drink?

EPA monitoring detected 22 contaminants in Piqua City'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 Piqua City's water?

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

How many people does Piqua City serve?

Piqua City reports serving 20,354 people in Ohio, per its EPA record.

Has Piqua City had any water quality violations?

The EPA has 43 violations on file for Piqua City, of which 27 are health-based (a contaminant limit or required treatment was breached) and 3 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.