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Tap water quality report

Oneill, City of

EPA monitoring tested this supplier for 99 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

99
contaminants tested
14
detected
3,705
people served
67
health-based violations
Nebraska rankingsLead in NebraskaPFAS in Nebraska
Water source
Ground water
Ownership
Local government
Counties served
Holt

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.

67
health-based violations
69
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2018-05-01 → 2018-05-31
MCL Health-based Resolved 2018-05-01 → 2018-05-31
MCL Health-based Resolved 2018-05-01 → 2018-05-31
MCL Health-based Resolved 2018-05-01 → 2018-05-31
MCL Health-based Resolved 2016-09-01 → 2016-09-30
MCL Health-based Resolved 2016-09-01 → 2016-09-30
MCL Health-based Resolved 2016-09-01 → 2016-09-30
MCL Health-based Resolved 2016-09-01 → 2016-09-30
MCL Health-based Resolved 2016-09-01 → 2016-09-30
MCL Health-based Resolved 2016-09-01 → 2016-09-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Fluoride
1159 µg/L 29%
of the EPA limit 4000 µg/L
worst single sample: 1900 µg/L
103/103 SYR4 2012–2019
Copper
98.555 µg/L 7.6%
of the EPA limit 1300 µg/L
worst single sample: 182 µg/L
58/60 SYR4 2013–2019
Nitrate-Nitrite
885 µg/L 8.9%
of the EPA limit 10000 µg/L
worst single sample: 902 µg/L
54/60 SYR4 2012–2019
Lead
8.5855 µg/L 57%
of the EPA limit 15 µg/L
worst single sample: 25.9 µg/L
18/60 SYR4 2013–2019
Arsenic
7.39 µg/L 74%
of the EPA limit 10 µg/L
worst single sample: 7.46 µg/L
11/11 SYR4 2012–2019
Lead
0.0011 mg/L 7.4%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2025
Barium
98.17 µg/L 4.9%
of the EPA limit 2000 µg/L
worst single sample: 100 µg/L
7/7 SYR4 2013–2019
Lithium
11.4 µg/L
No EPA limit set
 5/6 UCMR-5 2023
Chromium
6.433 µg/L 6.4%
of the EPA limit 100 µg/L
worst single sample: 6.47 µg/L
3/7 SYR4 2013–2019
Combined Radium (-226 And -228)
1.241 pCi/L 25%
of the EPA limit 5 pCi/L
worst single sample: 1.245 pCi/L
3/7 SYR4 2012–2018
Bromodichloromethane
1.03 µg/L
No EPA limit set
 1/15 SYR4 2012–2019
Chloroform
1.55 µg/L
No EPA limit set
 1/15 SYR4 2012–2019
Dibromochloromethane
1.08 µg/L
No EPA limit set
 1/15 SYR4 2012–2019
TTHM
3.66 µg/L 4.6%
of the EPA limit 80 µg/L
 1/15 SYR4 2012–2019
85 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SIDAK, SARAH
Phone
402-336-3640
Email
[email protected]

Frequently asked questions about Oneill, City of

Is Oneill, City of tap water safe to drink?

EPA monitoring detected 14 contaminants in Oneill, City of'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 Oneill, City of's water?

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

How many people does Oneill, City of serve?

Oneill, City of reports serving 3,705 people in Nebraska, per its EPA record.

Has Oneill, City of had any water quality violations?

The EPA has 69 violations on file for Oneill, City of, of which 67 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.