Is Laporte, IN Tap Water Safe? Quality & Contaminants

What was found in Laporte'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
Nitrate	5100 µg/L 51% of the EPA limit 10000 µg/L Highest in the city: KINGSBURY UTILITY CORPORATION · 240 people · 2019	1/3	SYR4
Nitrate-Nitrite	4540 µg/L 45% of the EPA limit 10000 µg/L Highest in the city: KINGSBURY UTILITY CORPORATION · 240 people · 2017	1/3	SYR4
Fluoride	900 µg/L 23% of the EPA limit 4000 µg/L Main supplier: LAPORTE WATER WORKS · 22,197 people · 2017	2/3	SYR4
Copper	264 µg/L 20% of the EPA limit 1300 µg/L Main supplier: LAPORTE WATER WORKS · 22,197 people · 2017	3/3	SYR4
Barium	125.5 µg/L 6.3% of the EPA limit 2000 µg/L Main supplier: LAPORTE WATER WORKS · 22,197 people · 2017 Highest in the city: 157.9 µg/L — J. B. WATER WORKS, INC. · 307 people · 2018	3/3	SYR4
TTHM	22.71 µg/L 28% of the EPA limit 80 µg/L Main supplier: LAPORTE WATER WORKS · 22,197 people · 2019	3/3	SYR4
Total Haloacetic Acids (HAA5)	11.9 µg/L 20% of the EPA limit 60 µg/L Main supplier: LAPORTE WATER WORKS · 22,197 people · 2019	3/3	SYR4
Lead	8.56 µg/L 57% of the EPA limit 15 µg/L Main supplier: LAPORTE WATER WORKS · 22,197 people · 2017	2/3	SYR4
Chloroform	3.485 µg/L No EPA limit set Main supplier: LAPORTE WATER WORKS · 22,197 people · 2017	2/3	SYR4
Gross Alpha, Excl. Radon And U	2.155 pCi/L 14% of the EPA limit 15 pCi/L Main supplier: LAPORTE WATER WORKS · 22,197 people · 2018 Highest in the city: 2.42 pCi/L — J. B. WATER WORKS, INC. · 307 people · 2015	3/3	SYR4
Bromodichloromethane	2.15 µg/L No EPA limit set Main supplier: LAPORTE WATER WORKS · 22,197 people · 2017	1/3	SYR4
Arsenic	1.96 µg/L 20% of the EPA limit 10 µg/L Highest in the city: KINGSBURY UTILITY CORPORATION · 240 people · 2017	2/3	SYR4
Chromium	1.48 µg/L 1.5% of the EPA limit 100 µg/L Highest in the city: KINGSBURY UTILITY CORPORATION · 240 people · 2017	1/3	SYR4
Dibromochloromethane	1.44 µg/L No EPA limit set Main supplier: LAPORTE WATER WORKS · 22,197 people · 2017	1/3	SYR4
Bromoform	0.8000 µg/L No EPA limit set Main supplier: LAPORTE WATER WORKS · 22,197 people · 2017	1/3	SYR4
PFBS	0.0074 µg/L No EPA limit set Main supplier: LAPORTE WATER WORKS · 22,197 people · 2025	1/3	UCMR-5
Lead	0.0019 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: LAPORTE WATER WORKS · 22,197 people · 2026 Highest in the city: 0.0027 mg/L — KINGSBURY UTILITY CORPORATION · 240 people · 2025	3/3	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 Laporte

Supplier	Population served
LAPORTE WATER WORKS	22,197
J. B. WATER WORKS, INC.	307
KINGSBURY UTILITY CORPORATION	240

Frequently asked questions about Laporte tap water

Is Laporte tap water safe to drink?

EPA testing detected 17 contaminants in the water serving Laporte. 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 Laporte?

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

What contaminants are in Laporte's water?

The contaminants EPA monitoring detected in Laporte include Nitrate, Nitrate-Nitrite, Fluoride, Copper, 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.