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.
19
health-based violations
132
violations on file
4
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2012-08-01 → 2012-08-31 |
| MCL | Health-based | Resolved | 2012-08-01 → 2012-08-31 |
| MCL | Health-based | Resolved | 2012-08-01 → 2012-08-31 |
| MCL | Health-based | Resolved | 2012-08-01 → 2012-08-31 |
| MCL | Health-based | Resolved | 2009-07-01 → 2009-07-31 |
| MCL | Health-based | Resolved | 2009-07-01 → 2009-07-31 |
| MCL | Health-based | Resolved | 2009-07-01 → 2009-07-31 |
| MCL | Health-based | Resolved | 2009-07-01 → 2009-07-31 |
| MCL | Health-based | Resolved | 2006-08-01 → 2006-08-31 |
| MCL | Health-based | Resolved | 2006-08-01 → 2006-08-31 |
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 |
|---|---|---|---|---|
| Bromoform | 6.094 µg/L No EPA limit set
worst single sample: 9.88 µg/L | 157/246 | SYR4 | 2012–2019 |
| Dibromochloromethane | 3.01 µg/L No EPA limit set
worst single sample: 3.93 µg/L | 141/246 | SYR4 | 2012–2019 |
| TTHM | 10.929 µg/L 14% of the EPA limit 80 µg/L
worst single sample: 13.79 µg/L | 115/128 | SYR4 | 2012–2019 |
| Copper | 170.04 µg/L 13% of the EPA limit 1300 µg/L
worst single sample: 1037 µg/L | 99/99 | SYR4 | 2012–2018 |
| Lead | 7.454 µg/L 50% of the EPA limit 15 µg/L
worst single sample: 12.8 µg/L | 69/90 | SYR4 | 2012–2018 |
| Total Haloacetic Acids (HAA5) | 4.375 µg/L 7.3% of the EPA limit 60 µg/L
worst single sample: 11.48 µg/L | 66/128 | SYR4 | 2012–2019 |
| Nitrate | 1969 µg/L 20% of the EPA limit 10000 µg/L
worst single sample: 2030 µg/L | 62/64 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 2.451 µg/L No EPA limit set
worst single sample: 2.64 µg/L | 48/128 | SYR4 | 2012–2019 |
| Bromodichloromethane | 1.832 µg/L No EPA limit set
worst single sample: 2.01 µg/L | 45/246 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 2.152 µg/L No EPA limit set
worst single sample: 3.04 µg/L | 37/128 | SYR4 | 2012–2019 |
| Chloroform | 2.87 µg/L No EPA limit set
worst single sample: 4.06 µg/L | 21/246 | SYR4 | 2012–2019 |
| Lead | 0.0026 mg/L 17% of the EPA limit 0.0150 mg/L | 16/16 | LCR | 2024 |
| Monochloroacetic Acid | 2.135 µg/L No EPA limit set
worst single sample: 2.64 µg/L | 11/128 | SYR4 | 2012–2019 |
| Carbon Tetrachloride | 0.8240 µg/L 16% of the EPA limit 5 µg/L
worst single sample: 0.8600 µg/L | 9/340 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 1.036 µg/L 21% of the EPA limit 5 µg/L
worst single sample: 1.08 µg/L | 9/340 | SYR4 | 2012–2019 |
| Arsenic | 1.53 µg/L 15% of the EPA limit 10 µg/L
worst single sample: 1.6 µg/L | 8/8 | SYR4 | 2014–2017 |
| Barium | 43.023 µg/L 2.2% of the EPA limit 2000 µg/L
worst single sample: 47.02 µg/L | 8/8 | SYR4 | 2014–2017 |
| Chromium | 3.377 µg/L 3.4% of the EPA limit 100 µg/L
worst single sample: 4 µg/L | 8/8 | SYR4 | 2014–2017 |
| Selenium | 1.3225 µg/L 2.6% of the EPA limit 50 µg/L
worst single sample: 1.34 µg/L | 8/8 | SYR4 | 2014–2017 |
| Fluoride | 80 µg/L 2% of the EPA limit 4000 µg/L | 7/8 | SYR4 | 2014–2017 |
| Monobromoacetic Acid | 1.939 µg/L No EPA limit set
worst single sample: 2.08 µg/L | 4/128 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 1.4835 pCi/L 30% of the EPA limit 5 pCi/L
worst single sample: 1.5 pCi/L | 2/6 | SYR4 | 2014–2017 |
| Toluene | 36.7345 µg/L 3.7% of the EPA limit 1000 µg/L
worst single sample: 38.64 µg/L | 2/340 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 1.1655 µg/L No EPA limit set
worst single sample: 1.17 µg/L | 2/128 | SYR4 | 2012–2019 |
| 1,2-Dichloropropane | 0.6700 µg/L 13% of the EPA limit 5 µg/L | 1/340 | SYR4 | 2012–2019 |
| Chlorobenzene | 2.61 µg/L 2.6% of the EPA limit 100 µg/L | 1/340 | SYR4 | 2012–2019 |
| Ethylbenzene | 5.06 µg/L 0.7% of the EPA limit 700 µg/L | 1/340 | SYR4 | 2012–2019 |
| Xylenes, Total | 0.5400 µg/L 0% of the EPA limit 10000 µg/L | 1/340 | SYR4 | 2012–2019 |
64 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalCyanideCadmiumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneThallium, TotalTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Madison Water Dept
Is Madison Water Dept tap water safe to drink?
EPA monitoring detected 33 contaminants in Madison Water Dept'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 Madison Water Dept's water?
EPA monitoring detected Bromoform, Dibromochloromethane, TTHM, Copper, Lead, and others. The full list with the level and data source for each is above.
How many people does Madison Water Dept serve?
Madison Water Dept reports serving 15,820 people in New Jersey, per its EPA record.
Has Madison Water Dept had any water quality violations?
The EPA has 132 violations on file for Madison Water Dept, of which 19 are health-based (a contaminant limit or required treatment was breached) and 4 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.