Is Delaware City Tap Water Safe? Quality Report

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

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	2014-04-01 → 2014-06-30
MCL	Health-based	Resolved	2014-04-01 → 2014-06-30
MCL	Health-based	Resolved	2014-04-01 → 2014-06-30
MCL	Health-based	Resolved	2014-04-01 → 2014-06-30
MCL	Health-based	Resolved	2014-01-01 → 2014-03-31
MCL	Health-based	Resolved	2014-01-01 → 2014-03-31
MCL	Health-based	Resolved	2014-01-01 → 2014-03-31
MCL	Health-based	Resolved	2014-01-01 → 2014-03-31
MCL	Health-based	Resolved	2013-10-01 → 2013-12-31
MCL	Health-based	Resolved	2013-10-01 → 2013-12-31

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
Copper	110 µg/L 8.5% of the EPA limit 1300 µg/L worst single sample: 860 µg/L	240/260	SYR4	2012–2018
Bromodichloromethane	17.945 µg/L No EPA limit set worst single sample: 21.8 µg/L	154/154	SYR4	2012–2019
Chloroform	83.94 µg/L No EPA limit set worst single sample: 105.5 µg/L	154/154	SYR4	2012–2019
Nitrate	4400 µg/L 44% of the EPA limit 10000 µg/L worst single sample: 5200 µg/L	154/206	SYR4	2012–2019
Dibromochloromethane	5.8 µg/L No EPA limit set worst single sample: 7.1 µg/L	152/152	SYR4	2012–2019
Dichloroacetic Acid	24.345 µg/L No EPA limit set worst single sample: 33 µg/L	152/152	SYR4	2012–2019
TTHM	103.36 µg/L 129% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 127.6 µg/L	152/152	SYR4	2012–2019
Trichloroacetic Acid	13.2 µg/L No EPA limit set worst single sample: 16.8 µg/L	149/151	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	43.01 µg/L 72% of the EPA limit 60 µg/L worst single sample: 47.8 µg/L	119/152	SYR4	2012–2019
Nitrate-Nitrite	4400 µg/L 44% of the EPA limit 10000 µg/L worst single sample: 5200 µg/L	77/103	SYR4	2012–2019
Dibromoacetic Acid	2.3 µg/L No EPA limit set worst single sample: 2.4 µg/L	41/149	SYR4	2012–2019
Monochloroacetic Acid	4.66 µg/L No EPA limit set worst single sample: 11.8 µg/L	29/152	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	23/23	LCR	2024
Lead	20.7 µg/L 138% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 27 µg/L	19/260	SYR4	2012–2018
Atrazine	4.1 µg/L 137% of the EPA limit, at the 95th percentile of samples — 3 µg/L worst single sample: 6.7 µg/L	14/31	SYR4	2012–2019
Fluoride	1339 µg/L 33% of the EPA limit 4000 µg/L worst single sample: 1430 µg/L	14/14	SYR4	2012–2019
Bromoform	0.6000 µg/L No EPA limit set	12/154	SYR4	2012–2019
Barium	66 µg/L 3.3% of the EPA limit 2000 µg/L worst single sample: 68 µg/L	11/14	SYR4	2012–2019
Simazine	0.8050 µg/L 20% of the EPA limit 4 µg/L worst single sample: 1.2 µg/L	11/31	SYR4	2012–2019
Arsenic	3.095 µg/L 31% of the EPA limit 10 µg/L worst single sample: 3.1 µg/L	2/14	SYR4	2012–2019
Gross Beta Particle Activity	25 pCi/L No EPA limit set	1/6	SYR4	2012–2014
Nitrite	180 µg/L 18% of the EPA limit 1000 µg/L	1/82	SYR4	2012–2018
Toluene	1.2 µg/L 0.1% of the EPA limit 1000 µg/L	1/14	SYR4	2012–2019
Xylenes, Total	0.6900 µg/L 0% of the EPA limit 10000 µg/L	1/14	SYR4	2012–2019
Lithium	15.4 µg/L No EPA limit set	1/4	UCMR-5	2024

59 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, TotalBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumCombined Radium (-226 And -228)DichloromethaneEthylbenzeneHfpo-DaLassoMercuryMonobromoacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: HINSON, THOMAS
Phone: 740-203-1926
Email: [email protected]

Frequently asked questions about Delaware City

Is Delaware City tap water safe to drink?

EPA monitoring detected 25 contaminants in Delaware 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 Delaware City's water?

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

How many people does Delaware City serve?

Delaware City reports serving 43,895 people in Ohio, per its EPA record.

Has Delaware City had any water quality violations?

The EPA has 20 violations on file for Delaware City, of which 13 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.