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Madison Water Department

EPA monitoring tested this supplier for 101 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

101
contaminants tested
17
detected
15,323
people served
4
health-based violations
Indiana rankingsLead in IndianaPFAS in Indiana
Water source
Ground water
Ownership
Local government
Counties served
Jefferson

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
155
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2000-05-01 → 2000-05-31
MCL Health-based Resolved 2000-05-01 → 2000-05-31
MCL Health-based Resolved 2000-05-01 → 2000-05-31
MCL Health-based Resolved 2000-05-01 → 2000-05-31
MON Monitoring Resolved 2025-08-01 → 2025-08-31
MON Monitoring Resolved 2025-08-01 → 2025-08-31
MON Monitoring Resolved 2025-08-01 → 2025-08-31
Other Monitoring Resolved 2025-07-01
Other Monitoring Resolved 2025-07-01
Other Monitoring Resolved 2024-07-01

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0085 µg/L 6/6 2024
PFOA 0.0046 µg/L 2/6 2024

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
TTHM
21.15 µg/L 26%
of the EPA limit 80 µg/L
worst single sample: 47.1 µg/L
111/114 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
10.94 µg/L 18%
of the EPA limit 60 µg/L
worst single sample: 19.7 µg/L
105/114 SYR4 2012–2019
Nitrate
2150 µg/L 22%
of the EPA limit 10000 µg/L
worst single sample: 2260 µg/L
32/32 SYR4 2012–2019
Copper
421.9 µg/L 32%
of the EPA limit 1300 µg/L
worst single sample: 492 µg/L
30/30 SYR4 2017
Lead
0.0018 mg/L 12%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2023
Lead
5.8 µg/L 39%
of the EPA limit 15 µg/L
worst single sample: 10.7 µg/L
15/30 SYR4 2017
Fluoride
752.15 µg/L 19%
of the EPA limit 4000 µg/L
worst single sample: 773 µg/L
4/4 SYR4 2014–2017
Bromodichloromethane
0.8850 µg/L
No EPA limit set
worst single sample: 0.9000 µg/L
2/2 SYR4 2014
Chloroform
1.18 µg/L
No EPA limit set
worst single sample: 1.2 µg/L
2/2 SYR4 2014
Dibromochloromethane
1.17 µg/L
No EPA limit set
worst single sample: 1.2 µg/L
2/2 SYR4 2014
Gross Alpha, Excl. Radon And U
1.52765 pCi/L 10%
of the EPA limit 15 pCi/L
worst single sample: 1.57 pCi/L
2/2 SYR4 2015–2017
Selenium
1.1 µg/L 2.2%
of the EPA limit 50 µg/L
 2/4 SYR4 2014–2017
Arsenic
1.4 µg/L 14%
of the EPA limit 10 µg/L
 1/4 SYR4 2014–2017
Barium
98 µg/L 4.9%
of the EPA limit 2000 µg/L
 1/4 SYR4 2014–2017
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 1/4 SYR4 2014–2017
84 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, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MITCHELL, JAMES
Phone
812-701-8833
Email
[email protected]

Frequently asked questions about Madison Water Department

Is Madison Water Department tap water safe to drink?

EPA monitoring detected 17 contaminants in Madison Water Department'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 Department's water?

EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Nitrate, Copper, Lead, and others. The full list with the level and data source for each is above.

How many people does Madison Water Department serve?

Madison Water Department reports serving 15,323 people in Indiana, per its EPA record.

Has Madison Water Department had any water quality violations?

The EPA has 155 violations on file for Madison Water Department, 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.