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Tap water quality report

Cook, Village of

EPA monitoring tested this supplier for 69 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
11
detected
335
people served
36
health-based violations
Nebraska rankingsLead in NebraskaPFAS in Nebraska
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.

36
health-based violations
50
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2025-07-01 → 2025-09-30
MCL Health-based Resolved 2025-07-01 → 2025-09-30
MCL Health-based Resolved 2025-07-01 → 2025-09-30
MCL Health-based Resolved 2025-07-01 → 2025-09-30
MCL Health-based Resolved 2008-11-01 → 2008-11-30
MCL Health-based Resolved 2008-11-01 → 2008-11-30
MCL Health-based Resolved 2008-11-01 → 2008-11-30
MCL Health-based Resolved 2008-11-01 → 2008-11-30
MCL Health-based Resolved 2002-12-01 → 2002-12-31
MCL Health-based Resolved 2002-12-01 → 2002-12-31

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Fluoride
1150 µg/L 29%
of the EPA limit 4000 µg/L
worst single sample: 1260 µg/L
51/51 SYR4 2012–2017
Nitrate-Nitrite
761.15 µg/L 7.6%
of the EPA limit 10000 µg/L
worst single sample: 764 µg/L
24/32 SYR4 2012–2019
Copper
344.2 µg/L 26%
of the EPA limit 1300 µg/L
worst single sample: 459 µg/L
15/15 SYR4 2012–2018
Lead
12.2505 µg/L 82%
of the EPA limit 15 µg/L
worst single sample: 15.9 µg/L
10/15 SYR4 2012–2018
Lead
0.0104 mg/L 69%
of the EPA limit 0.0150 mg/L
 9/9 LCR 2024
Combined Radium (-226 And -228)
2.12 pCi/L 42%
of the EPA limit 5 pCi/L
worst single sample: 2.16 pCi/L
6/6 SYR4 2012–2018
Arsenic
4.09 µg/L 41%
of the EPA limit 10 µg/L
worst single sample: 4.15 µg/L
4/4 SYR4 2012–2018
Barium
124 µg/L 6.2%
of the EPA limit 2000 µg/L
 2/2 SYR4 2017
Chromium
1.2675 µg/L 1.3%
of the EPA limit 100 µg/L
worst single sample: 1.27 µg/L
2/2 SYR4 2017
Combined Uranium
22.0222 µg/L 73%
of the EPA limit 30 µg/L
worst single sample: 22.499 µg/L
2/2 SYR4 2012–2018
Selenium
2.505 µg/L 5%
of the EPA limit 50 µg/L
 1/2 SYR4 2017
58 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SPECKMANN, JEANNE
Phone
402-335-7467
Email
[email protected]

Frequently asked questions about Cook, Village of

Is Cook, Village of tap water safe to drink?

EPA monitoring detected 11 contaminants in Cook, Village 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 Cook, Village of's water?

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

How many people does Cook, Village of serve?

Cook, Village of reports serving 335 people in Nebraska, per its EPA record.

Has Cook, Village of had any water quality violations?

The EPA has 50 violations on file for Cook, Village of, of which 36 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.