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.
4
health-based violations
33
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2011-05-01 → 2011-05-31 |
| MCL | Health-based | Resolved | 2011-05-01 → 2011-05-31 |
| MCL | Health-based | Resolved | 2011-05-01 → 2011-05-31 |
| MCL | Health-based | Resolved | 2011-05-01 → 2011-05-31 |
| Other | Monitoring | Resolved | 2011-07-16 |
| Other | Monitoring | Resolved | 2011-07-16 |
| MR | Monitoring | Resolved | 2011-06-01 → 2011-06-30 |
| MR | Monitoring | Resolved | 2011-06-01 → 2011-06-30 |
| MR | Monitoring | Resolved | 2011-06-01 → 2011-06-30 |
| MR | Monitoring | Resolved | 2011-06-01 → 2011-06-30 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| Pfba | 0.0098 µg/L | 4/4 | 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 |
|---|---|---|---|---|
| Bromodichloromethane | 22.7475 µg/L No EPA limit set
worst single sample: 24.5 µg/L | 128/128 | SYR4 | 2012–2019 |
| Chloroform | 45.2495 µg/L No EPA limit set
worst single sample: 66.1 µg/L | 128/128 | SYR4 | 2012–2019 |
| Dibromochloromethane | 14.39 µg/L No EPA limit set
worst single sample: 15.9 µg/L | 128/128 | SYR4 | 2012–2019 |
| TTHM | 80.895 µg/L 101% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 97.4 µg/L | 128/128 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 25.195 µg/L 42% of the EPA limit 60 µg/L
worst single sample: 28.6 µg/L | 128/128 | SYR4 | 2012–2019 |
| Bromoform | 3.41 µg/L No EPA limit set
worst single sample: 4.4 µg/L | 126/128 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4.935 µg/L No EPA limit set
worst single sample: 5.9 µg/L | 126/128 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 14 µg/L No EPA limit set
worst single sample: 17.5 µg/L | 124/128 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 7.1215 µg/L No EPA limit set
worst single sample: 8.9 µg/L | 112/128 | SYR4 | 2012–2019 |
| Nitrate | 1895 µg/L 19% of the EPA limit 10000 µg/L
worst single sample: 1900 µg/L | 22/28 | SYR4 | 2012–2019 |
| Copper | 7.5 µg/L 0.6% of the EPA limit 1300 µg/L
worst single sample: 19 µg/L | 21/60 | SYR4 | 2014–2017 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L | 21/21 | LCR | 2025 |
| Barium | 127 µg/L 6.4% of the EPA limit 2000 µg/L
worst single sample: 140 µg/L | 14/14 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 4.5305 µg/L No EPA limit set
worst single sample: 4.55 µg/L | 14/128 | SYR4 | 2012–2019 |
| Fluoride | 909 µg/L 23% of the EPA limit 4000 µg/L
worst single sample: 915 µg/L | 9/14 | SYR4 | 2012–2019 |
| Arsenic | 8.525 µg/L 85% of the EPA limit 10 µg/L
worst single sample: 9.4 µg/L | 8/14 | SYR4 | 2012–2019 |
| Lead | 2.25 µg/L 15% of the EPA limit 15 µg/L
worst single sample: 2.3 µg/L | 6/60 | SYR4 | 2014–2017 |
| Nitrate-Nitrite | 1375 µg/L 14% of the EPA limit 10000 µg/L
worst single sample: 1400 µg/L | 6/9 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 1.7772 pCi/L 36% of the EPA limit 5 pCi/L
worst single sample: 1.778 pCi/L | 3/3 | SYR4 | 2014–2017 |
| Monochloroacetic Acid | 3.173 µg/L No EPA limit set
worst single sample: 3.21 µg/L | 3/128 | SYR4 | 2012–2019 |
| Selenium | 3.075 µg/L 6.2% of the EPA limit 50 µg/L
worst single sample: 3.1 µg/L | 2/14 | SYR4 | 2012–2019 |
| Chromium | 5.4 µg/L 5.4% of the EPA limit 100 µg/L | 1/14 | SYR4 | 2012–2019 |
| Pentachlorophenol | 0.7200 µg/L 72% of the EPA limit 1 µg/L | 1/18 | 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Jacksonville
Is Jacksonville tap water safe to drink?
EPA monitoring detected 24 contaminants in Jacksonville'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 Jacksonville's water?
EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does Jacksonville serve?
Jacksonville reports serving 19,903 people in Illinois, per its EPA record.
Has Jacksonville had any water quality violations?
The EPA has 33 violations on file for Jacksonville, of which 4 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.