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Mishawaka Utilities

EPA monitoring tested this supplier for 102 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

102
contaminants tested
20
detected
49,675
people served
13
health-based violations
Indiana rankingsLead in IndianaPFAS in Indiana
Water source
Ground water
Ownership
Local government
Counties served
St. Joseph

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.

13
health-based violations
18
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2010-11-01 → 2010-11-30
TT Health-based Resolved 2010-11-01 → 2010-11-30
TT Health-based Resolved 2010-11-01 → 2010-11-30
TT Health-based Resolved 2010-10-01 → 2010-10-31
TT Health-based Resolved 2010-10-01 → 2010-10-31
TT Health-based Resolved 2010-10-01 → 2010-10-31
MCL Health-based Resolved 1995-10-01 → 1995-10-31
MCL Health-based Resolved 1995-10-01 → 1995-10-31
MCL Health-based Resolved 1995-08-01 → 1995-08-31
MCL Health-based Resolved 1995-08-01 → 1995-08-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFHXS 0.0056 µg/L 2/8 2025
Pfba 0.0052 µg/L 1/8 2025
PFBS 0.0037 µg/L 1/8 2025
PFOS 0.0042 µg/L 1/8 2025
Pfpea 0.0033 µg/L 1/8 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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
39.82 µg/L 50%
of the EPA limit 80 µg/L
worst single sample: 43.9 µg/L
82/82 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
17.995 µg/L 30%
of the EPA limit 60 µg/L
worst single sample: 24 µg/L
82/82 SYR4 2012–2019
Nitrate
1600 µg/L 16%
of the EPA limit 10000 µg/L
 32/50 SYR4 2012–2019
Copper
896.5 µg/L 69%
of the EPA limit 1300 µg/L
worst single sample: 1100 µg/L
30/30 SYR4 2017
Lead
13.75 µg/L 92%
of the EPA limit 15 µg/L
worst single sample: 15 µg/L
26/30 SYR4 2017
Lead
0.0089 mg/L 59%
of the EPA limit 0.0150 mg/L
 17/17 LCR 2023
Barium
232.5 µg/L 12%
of the EPA limit 2000 µg/L
worst single sample: 240 µg/L
6/6 SYR4 2014–2017
Fluoride
900 µg/L 23%
of the EPA limit 4000 µg/L
 6/6 SYR4 2014–2017
Bromodichloromethane
7.01 µg/L
No EPA limit set
worst single sample: 7.1 µg/L
4/6 SYR4 2014–2017
Chloroform
7.11 µg/L
No EPA limit set
worst single sample: 7.2 µg/L
4/6 SYR4 2014–2017
Dibromochloromethane
3.865 µg/L
No EPA limit set
worst single sample: 4 µg/L
4/6 SYR4 2014–2017
Nitrate-Nitrite
1455 µg/L 15%
of the EPA limit 10000 µg/L
worst single sample: 1500 µg/L
4/7 SYR4 2014–2017
Arsenic
1.49 µg/L 15%
of the EPA limit 10 µg/L
worst single sample: 1.5 µg/L
3/6 SYR4 2014–2017
Chromium
1.67 µg/L 1.7%
of the EPA limit 100 µg/L
worst single sample: 1.7 µg/L
3/6 SYR4 2014–2017
Gross Alpha, Excl. Radon And U
1.928 pCi/L 13%
of the EPA limit 15 pCi/L
worst single sample: 1.96 pCi/L
2/2 SYR4 2016
82 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 DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MAJEWSKI, DAVE
Phone
574-258-1652
Email
[email protected]

Frequently asked questions about Mishawaka Utilities

Is Mishawaka Utilities tap water safe to drink?

EPA monitoring detected 20 contaminants in Mishawaka Utilities'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 Mishawaka Utilities'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 Mishawaka Utilities serve?

Mishawaka Utilities reports serving 49,675 people in Indiana, per its EPA record.

Has Mishawaka Utilities had any water quality violations?

The EPA has 18 violations on file for Mishawaka Utilities, of which 13 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.