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.
14
health-based violations
17
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-07-01 → 2025-09-30 |
| MCL | Health-based | Archived | 2025-07-01 → 2025-09-30 |
| MCL | Health-based | Archived | 2025-07-01 → 2025-09-30 |
| MCL | Health-based | Resolved | 2001-01-01 → 2001-12-31 |
| MCL | Health-based | Resolved | 2001-01-01 → 2001-12-31 |
| MCL | Health-based | Resolved | 2001-01-01 → 2001-12-31 |
| MCL | Health-based | Resolved | 2001-01-01 → 2001-12-31 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
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-Nitrite | 5999 µg/L 60% of the EPA limit 10000 µg/L
worst single sample: 6300 µg/L | 142/142 | SYR4 | 2012–2019 |
| Copper | 686.75 µg/L 53% of the EPA limit 1300 µg/L
worst single sample: 1110 µg/L | 90/90 | SYR4 | 2013–2019 |
| Dibromochloromethane | 22.2 µg/L No EPA limit set
worst single sample: 32 µg/L | 35/69 | SYR4 | 2012–2019 |
| TTHM | 54.87 µg/L 69% of the EPA limit 80 µg/L
worst single sample: 75.2 µg/L | 35/69 | SYR4 | 2012–2019 |
| Bromodichloromethane | 9.282 µg/L No EPA limit set
worst single sample: 14 µg/L | 33/69 | SYR4 | 2012–2019 |
| Bromoform | 23.44 µg/L No EPA limit set
worst single sample: 25.6 µg/L | 33/69 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 6.9795 µg/L No EPA limit set
worst single sample: 7.18 µg/L | 28/28 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 8.2595 µg/L 14% of the EPA limit 60 µg/L
worst single sample: 9.63 µg/L | 28/28 | SYR4 | 2012–2019 |
| Atrazine | 0.4804 µg/L 16% of the EPA limit 3 µg/L
worst single sample: 0.6690 µg/L | 25/59 | SYR4 | 2012–2019 |
| Combined Uranium | 25.7621 µg/L 86% of the EPA limit 30 µg/L
worst single sample: 30.098 µg/L | 23/23 | SYR4 | 2012–2017 |
| Lead | 2.307 µg/L 15% of the EPA limit 15 µg/L
worst single sample: 2.48 µg/L | 23/90 | SYR4 | 2013–2019 |
| Chloroform | 3 µg/L No EPA limit set
worst single sample: 4.2 µg/L | 21/69 | SYR4 | 2012–2019 |
| Lithium | 30.9 µg/L No EPA limit set | 16/16 | UCMR-5 | 2023 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L | 10/10 | LCR | 2025 |
| Barium | 151.5 µg/L 7.6% of the EPA limit 2000 µg/L
worst single sample: 162 µg/L | 8/8 | SYR4 | 2014–2017 |
| Combined Radium (-226 And -228) | 3.57 pCi/L 71% of the EPA limit 5 pCi/L
worst single sample: 4.2 pCi/L | 8/11 | SYR4 | 2014–2017 |
| Fluoride | 604.65 µg/L 15% of the EPA limit 4000 µg/L
worst single sample: 619 µg/L | 8/8 | SYR4 | 2014–2017 |
| Arsenic | 3.032 µg/L 30% of the EPA limit 10 µg/L
worst single sample: 3.29 µg/L | 7/8 | SYR4 | 2017 |
| Gross Alpha, Excl. Radon And U | 8.27 pCi/L 55% of the EPA limit 15 pCi/L
worst single sample: 8.3 pCi/L | 7/12 | SYR4 | 2013–2016 |
| Monobromoacetic Acid | 1.348 µg/L No EPA limit set
worst single sample: 1.39 µg/L | 5/28 | SYR4 | 2012–2019 |
| Chlorobenzene | 0.9630 µg/L 1% of the EPA limit 100 µg/L
worst single sample: 0.9900 µg/L | 3/69 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 1.1775 µg/L No EPA limit set
worst single sample: 1.18 µg/L | 2/28 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 0.7098 µg/L No EPA limit set
worst single sample: 0.7200 µg/L | 2/28 | SYR4 | 2012–2019 |
| Chromium | 2.41 µg/L 2.4% of the EPA limit 100 µg/L | 1/8 | SYR4 | 2014–2017 |
| Endrin | 0.7940 µg/L 40% of the EPA limit 2 µg/L | 1/59 | SYR4 | 2012–2019 |
| Heptachlor Epoxide | 0.2200 µg/L 110% of the EPA limit, at the 95th percentile of samples — 0.2000 µg/L | 1/59 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 3.03 µg/L No EPA limit set | 1/28 | SYR4 | 2012–2019 |
74 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, TotalBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Grand Island, City of
Is Grand Island, City of tap water safe to drink?
EPA monitoring detected 31 contaminants in Grand Island, 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 Grand Island, City of's water?
EPA monitoring detected Nitrate-Nitrite, Copper, Dibromochloromethane, TTHM, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Grand Island, City of serve?
Grand Island, City of reports serving 51,478 people in Nebraska, per its EPA record.
Has Grand Island, City of had any water quality violations?
The EPA has 17 violations on file for Grand Island, City of, of which 14 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.