Is Michigan City, IN Tap Water Safe? Quality & Contaminants

What was found in Michigan City's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
Fluoride	1200 µg/L 30% of the EPA limit 4000 µg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2019	4/5	SYR4
Copper	786 µg/L 60% of the EPA limit 1300 µg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2017	5/5	SYR4
Nitrate-Nitrite	338.5 µg/L 3.4% of the EPA limit 10000 µg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2019	1/5	SYR4
Nitrate	330 µg/L 3.3% of the EPA limit 10000 µg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2015	2/5	SYR4
Barium	21.65 µg/L 1.1% of the EPA limit 2000 µg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2019 Highest in the city: 159.6 µg/L — NEIGHBORS OF BEECHWOOD LLC · 63 people · 2018	4/5	SYR4
TTHM	24.31 µg/L 30% of the EPA limit 80 µg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2019 Highest in the city: 30.35 µg/L — DUNELAND BEACH ASSOCIATION · 300 people · 2019	3/5	SYR4
Chloroform	12.6 µg/L No EPA limit set Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2019	2/5	SYR4
Lead	9.49 µg/L 63% of the EPA limit 15 µg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2017	2/5	SYR4
Bromodichloromethane	8.51 µg/L No EPA limit set Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2019	1/5	SYR4
Selenium	8.045 µg/L 16% of the EPA limit 50 µg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2019	1/5	SYR4
Total Haloacetic Acids (HAA5)	7.58 µg/L 13% of the EPA limit 60 µg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2019	2/5	SYR4
Chromium	5.085 µg/L 5.1% of the EPA limit 100 µg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2019	2/5	SYR4
Dibromochloromethane	3.865 µg/L No EPA limit set Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2019	1/5	SYR4
Gross Alpha, Excl. Radon And U	3.21 pCi/L 21% of the EPA limit 15 pCi/L Highest in the city: NEIGHBORS OF BEECHWOOD LLC · 63 people · 2016	3/5	SYR4
Thallium, Total	1.3 µg/L 65% of the EPA limit 2 µg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2019	1/5	SYR4
Lead	0.0019 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: MICHIGAN CITY DEPARTMENT OF WATER WORKS · 33,996 people · 2023 Highest in the city: 0.0064 mg/L — NEIGHBORS OF BEECHWOOD LLC · 63 people · 2024	5/5	LCR

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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Michigan City

Supplier	Population served
MICHIGAN CITY DEPARTMENT OF WATER WORKS	33,996
DUNELAND BEACH ASSOCIATION	300
COLONIAL MOBILE COURT	99
INDIAN SPRINGS TOWN HOMES	90
NEIGHBORS OF BEECHWOOD LLC	63

Frequently asked questions about Michigan City tap water

Is Michigan City tap water safe to drink?

EPA testing detected 16 contaminants in the water serving Michigan City. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Michigan City?

5 public water suppliers report drinking-water monitoring for Michigan City, Indiana to the EPA. Each is listed above with its population served.

What contaminants are in Michigan City's water?

The contaminants EPA monitoring detected in Michigan City include Fluoride, Copper, Nitrate-Nitrite, Nitrate, Barium. The full list, with the level at the main supplier and the data source, is in the table above.

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.