Is Ligonier, IN Tap Water Safe? Quality & Contaminants

What was found in Ligonier'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	309 µg/L 7.7% of the EPA limit 4000 µg/L Main supplier: LIGONIER WATER WORKS · 4,405 people · 2018 Highest in the city: 422.8 µg/L — EAGLES NEST ESTATES · 350 people · 2019	2/2	SYR4
Nitrate	360 µg/L 3.6% of the EPA limit 10000 µg/L Highest in the city: EAGLES NEST ESTATES · 350 people · 2019	1/2	SYR4
Copper	280 µg/L 22% of the EPA limit 1300 µg/L Main supplier: LIGONIER WATER WORKS · 4,405 people · 2017	2/2	SYR4
Barium	140 µg/L 7% of the EPA limit 2000 µg/L Main supplier: LIGONIER WATER WORKS · 4,405 people · 2018 Highest in the city: 260 µg/L — EAGLES NEST ESTATES · 350 people · 2018	2/2	SYR4
Lead	28.7 µg/L 191% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: LIGONIER WATER WORKS · 4,405 people · 2017	1/2	SYR4
TTHM	24.6 µg/L 31% of the EPA limit 80 µg/L Main supplier: LIGONIER WATER WORKS · 4,405 people · 2019	1/2	SYR4
Arsenic	2.65 µg/L 27% of the EPA limit 10 µg/L Main supplier: LIGONIER WATER WORKS · 4,405 people · 2018 Highest in the city: 7.235 µg/L — EAGLES NEST ESTATES · 350 people · 2019	2/2	SYR4
Chromium	6.9 µg/L 6.9% of the EPA limit 100 µg/L Main supplier: LIGONIER WATER WORKS · 4,405 people · 2018	1/2	SYR4
Total Haloacetic Acids (HAA5)	4.73 µg/L 7.9% of the EPA limit 60 µg/L Main supplier: LIGONIER WATER WORKS · 4,405 people · 2019	1/2	SYR4
Gross Alpha, Excl. Radon And U	2.2 pCi/L 15% of the EPA limit 15 pCi/L Highest in the city: EAGLES NEST ESTATES · 350 people · 2019	1/2	SYR4
Lead	0.0058 mg/L 39% of the EPA limit 0.0150 mg/L Main supplier: LIGONIER WATER WORKS · 4,405 people · 2023	2/2	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 Ligonier

Supplier	Population served
LIGONIER WATER WORKS	4,405
EAGLES NEST ESTATES	350

Frequently asked questions about Ligonier tap water

Is Ligonier tap water safe to drink?

EPA testing detected 11 contaminants in the water serving Ligonier. 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 Ligonier?

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

What contaminants are in Ligonier's water?

The contaminants EPA monitoring detected in Ligonier include Fluoride, Nitrate, Copper, Barium, Lead. 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.