Tap WaterIndex

← Indiana

Tap water quality report

Vincennes, IN

EPA monitoring detected 14 contaminants across the 2 water suppliers serving Vincennes. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
22,226
people served
14
contaminants found
Indiana rankings Lead in Indiana PFAS in Indiana

What was found in Vincennes'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.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
3400 µg/L 34%
of the EPA limit 10000 µg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2019
1/2 SYR4
Nitrate-Nitrite
2490 µg/L 25%
of the EPA limit 10000 µg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2014
1/2 SYR4
Fluoride
1285 µg/L 32%
of the EPA limit 4000 µg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2017
1/2 SYR4
Copper
696.5 µg/L 54%
of the EPA limit 1300 µg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2017
2/2 SYR4
TTHM
83.5 µg/L 104%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2019
2/2 SYR4
Barium
49.14 µg/L 2.5%
of the EPA limit 2000 µg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2017
1/2 SYR4
Total Haloacetic Acids (HAA5)
15.82 µg/L 26%
of the EPA limit 60 µg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2019
2/2 SYR4
Lead
5.8 µg/L 39%
of the EPA limit 15 µg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2017
Highest in the city: 9.6 µg/L — KNOX COUNTY WATER, INC. · 3,525 people · 2018
2/2 SYR4
Gross Alpha, Excl. Radon And U
2 pCi/L 13%
of the EPA limit 15 pCi/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2018
1/2 SYR4
Selenium
1.39 µg/L 2.8%
of the EPA limit 50 µg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2017
1/2 SYR4
Arsenic
1.17 µg/L 12%
of the EPA limit 10 µg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2017
1/2 SYR4
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2017
1/2 SYR4
Bromodichloromethane
0.5000 µg/L
No EPA limit set
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 people · 2017
1/2 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: VINCENNES WATER DEPARTMENT · 18,701 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 Vincennes

SupplierPopulation served
VINCENNES WATER DEPARTMENT 18,701
KNOX COUNTY WATER, INC. 3,525

Frequently asked questions about Vincennes tap water

Is Vincennes tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Vincennes. 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 Vincennes?

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

What contaminants are in Vincennes's water?

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