Is Oxford Water Supply Tap Water Safe? Quality Report

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

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

102

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Archived	1985-10-01 → 1986-09-30
MCL	Health-based	Archived	1985-10-01 → 1986-09-30
MCL	Health-based	Archived	1985-10-01 → 1986-09-30
MCL	Health-based	Archived	1985-10-01 → 1986-09-30
MCL	Health-based	Archived	1985-02-01 → 1985-09-30
MCL	Health-based	Resolved	1985-01-01 → 1985-03-31
MCL	Health-based	Resolved	1985-01-01 → 1985-03-31
MCL	Health-based	Resolved	1985-01-01 → 1985-03-31
MCL	Health-based	Resolved	1985-01-01 → 1985-03-31
MCL	Health-based	Resolved	1985-01-01 → 1985-03-31

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	391.5 µg/L 30% of the EPA limit 1300 µg/L worst single sample: 610 µg/L	20/20	SYR4	2014–2017
Lead	0.0090 mg/L 60% of the EPA limit 0.0150 mg/L	16/16	LCR	2023
Nitrate	3400 µg/L 34% of the EPA limit 10000 µg/L	16/16	SYR4	2012–2019
Bromodichloromethane	6.95 µg/L No EPA limit set worst single sample: 7 µg/L	6/6	SYR4	2014–2019
Bromoform	2 µg/L No EPA limit set worst single sample: 2.1 µg/L	6/6	SYR4	2014–2019
Chloroform	6.225 µg/L No EPA limit set worst single sample: 6.3 µg/L	6/6	SYR4	2014–2019
Dibromoacetic Acid	2 µg/L No EPA limit set	6/6	SYR4	2014–2019
Dibromochloromethane	5.875 µg/L No EPA limit set worst single sample: 5.9 µg/L	6/6	SYR4	2014–2019
Dichloroacetic Acid	3 µg/L No EPA limit set	6/6	SYR4	2014–2019
TTHM	20 µg/L 25% of the EPA limit 80 µg/L	6/6	SYR4	2014–2019
Lead	1.9 µg/L 13% of the EPA limit 15 µg/L worst single sample: 2 µg/L	3/20	SYR4	2014–2017
Trichloroacetic Acid	1.9 µg/L No EPA limit set worst single sample: 2 µg/L	3/6	SYR4	2014–2019
Total Haloacetic Acids (HAA5)	6.95 µg/L 12% of the EPA limit 60 µg/L worst single sample: 7 µg/L	2/6	SYR4	2014–2019
Barium	100 µg/L 5% of the EPA limit 2000 µg/L	1/1	SYR4	2013
Fluoride	230 µg/L 5.8% of the EPA limit 4000 µg/L	1/1	SYR4	2013

45 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, TotalArsenicAtrazineBenzeneBenzo(A)PyreneChlorobenzeneCadmiumCarbon TetrachlorideChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylbenzeneGlyphosateLassoMercuryMonobromoacetic AcidMonochloroacetic AcidPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: OXFORD WATER SUPPLY
Phone: 319-458-2023
Email: [email protected]

Frequently asked questions about Oxford Water Supply

Is Oxford Water Supply tap water safe to drink?

EPA monitoring detected 15 contaminants in Oxford Water Supply'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 Oxford Water Supply's water?

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

How many people does Oxford Water Supply serve?

Oxford Water Supply reports serving 722 people in Iowa, per its EPA record.

Has Oxford Water Supply had any water quality violations?

The EPA has 102 violations on file for Oxford Water Supply, of which 15 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.