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.
80
health-based violations
116
violations on file
1
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-07-01 → 2023-09-30 |
| MCL | Health-based | Resolved | 2023-07-01 → 2023-09-30 |
| MCL | Health-based | Resolved | 2023-07-01 → 2023-09-30 |
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.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 370 µg/L 28% of the EPA limit 1300 µg/L
worst single sample: 879 µg/L | 61/70 | SYR4 | 2012–2019 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L | 41/41 | LCR | 2025 |
| Lead | 42.4 µg/L 283% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 140 µg/L | 37/70 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 8.178 pCi/L 164% of the EPA limit, at the 95th percentile of samples — 5 pCi/L
worst single sample: 21.5 pCi/L | 35/38 | SYR4 | 2012–2019 |
| TTHM | 95.74 µg/L 120% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 103.6 µg/L | 23/23 | SYR4 | 2012–2019 |
| Bromoform | 50.5 µg/L No EPA limit set
worst single sample: 62.8 µg/L | 22/23 | SYR4 | 2012–2019 |
| Dibromochloromethane | 25.86 µg/L No EPA limit set
worst single sample: 37.8 µg/L | 22/23 | SYR4 | 2012–2019 |
| Nitrate | 175 µg/L 1.8% of the EPA limit 10000 µg/L | 20/30 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 23.15 µg/L No EPA limit set
worst single sample: 31.7 µg/L | 19/23 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 27.75 µg/L 46% of the EPA limit 60 µg/L
worst single sample: 39 µg/L | 19/23 | SYR4 | 2012–2019 |
| Bromodichloromethane | 10.5305 µg/L No EPA limit set
worst single sample: 13.8 µg/L | 14/23 | SYR4 | 2012–2019 |
| Fluoride | 2375 µg/L 59% of the EPA limit 4000 µg/L
worst single sample: 2540 µg/L | 12/12 | SYR4 | 2012–2019 |
| Barium | 396.9 µg/L 20% of the EPA limit 2000 µg/L
worst single sample: 420 µg/L | 8/8 | SYR4 | 2012–2018 |
| Arsenic | 30 µg/L 300% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 33.9 µg/L | 7/8 | SYR4 | 2012–2018 |
| Chloroform | 3.18 µg/L No EPA limit set
worst single sample: 3.4 µg/L | 5/23 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 171.2 µg/L 1.7% of the EPA limit 10000 µg/L
worst single sample: 175 µg/L | 5/10 | SYR4 | 2012–2017 |
| Selenium | 11.46 µg/L 23% of the EPA limit 50 µg/L
worst single sample: 12 µg/L | 3/8 | SYR4 | 2012–2018 |
| Combined Uranium | 0.0624 µg/L 0.2% of the EPA limit 30 µg/L
worst single sample: 0.0641 µg/L | 2/2 | SYR4 | 2014 |
| Dichloroacetic Acid | 2.715 µg/L No EPA limit set
worst single sample: 2.8 µg/L | 2/23 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 33.5479 pCi/L 224% of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 34.479 pCi/L | 2/2 | SYR4 | 2014 |
| Monobromoacetic Acid | 4.4905 µg/L No EPA limit set
worst single sample: 4.5 µg/L | 2/23 | SYR4 | 2012–2019 |
| 2,4-D | 7.1 µg/L 10% of the EPA limit 70 µg/L | 1/5 | SYR4 | 2014–2017 |
| Antimony, Total | 3.8 µg/L 63% of the EPA limit 6 µg/L | 1/9 | SYR4 | 2012–2018 |
| Chromium | 5.1 µg/L 5.1% of the EPA limit 100 µg/L | 1/8 | SYR4 | 2012–2018 |
57 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-TPAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Chenoa
Is Chenoa tap water safe to drink?
EPA monitoring detected 24 contaminants in Chenoa'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 Chenoa's water?
EPA monitoring detected Copper, Lead, Lead, Combined Radium (-226 And -228), TTHM, and others. The full list with the level and data source for each is above.
How many people does Chenoa serve?
Chenoa reports serving 1,785 people in Illinois, per its EPA record.
Has Chenoa had any water quality violations?
The EPA has 116 violations on file for Chenoa, of which 80 are health-based (a contaminant limit or required treatment was breached) and 1 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.