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Tap water quality report

Lafayette, IN

EPA monitoring detected 23 contaminants across the 6 water suppliers serving Lafayette. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

6
water suppliers
71,685
people served
23
contaminants found
Indiana rankings Lead in Indiana PFAS in Indiana

What was found in Lafayette's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
8810 µg/L 88%
of the EPA limit 10000 µg/L
 4/6 SYR4
Nitrate-Nitrite
3800 µg/L 38%
of the EPA limit 10000 µg/L
 3/6 SYR4
Copper
2020 µg/L 155%
of the EPA limit, in the worst sample — 1300 µg/L
 6/6 SYR4
Barium
926 µg/L 46%
of the EPA limit 2000 µg/L
 6/6 SYR4
Fluoride
900 µg/L 23%
of the EPA limit 4000 µg/L
 6/6 SYR4
Total Haloacetic Acids (HAA5)
29.5 µg/L 49%
of the EPA limit 60 µg/L
 3/6 SYR4
Arsenic
18 µg/L 180%
of the EPA limit, in the worst sample — 10 µg/L
 5/6 SYR4
TTHM
16 µg/L 20%
of the EPA limit 80 µg/L
 3/6 SYR4
Lithium
12.8 µg/L
No EPA limit set
 1/6 UCMR-5
Cyanide
10 µg/L 5%
of the EPA limit 200 µg/L
 1/6 SYR4
Lead
8 µg/L 53%
of the EPA limit 15 µg/L
 3/6 SYR4
Xylenes, Total
6.3 µg/L 0.1%
of the EPA limit 10000 µg/L
 1/6 SYR4
Chromium
6 µg/L 6%
of the EPA limit 100 µg/L
 3/6 SYR4
Gross Beta Particle Activity
5.19 pCi/L
No EPA limit set
 3/6 SYR4
Combined Uranium
3.2321 µg/L 11%
of the EPA limit 30 µg/L
 2/6 SYR4
Gross Alpha, Excl. Radon And U
2.55 pCi/L 17%
of the EPA limit 15 pCi/L
 4/6 SYR4
Ethylbenzene
1.2 µg/L 0.2%
of the EPA limit 700 µg/L
 1/6 SYR4
trans-1,2-Dichloroethylene
0.9000 µg/L 0.9%
of the EPA limit 100 µg/L
 1/6 SYR4
1,1,1-Trichloroethane
0.8000 µg/L 0.4%
of the EPA limit 200 µg/L
 1/6 SYR4
Trichloroethylene
0.8000 µg/L 16%
of the EPA limit 5 µg/L
 1/6 SYR4
Tetrachloroethylene
0.6000 µg/L 12%
of the EPA limit 5 µg/L
 1/6 SYR4
Bromodichloromethane
0.5000 µg/L
No EPA limit set
 1/6 SYR4
Lead
0.00063 mg/L 4.2%
of the EPA limit 0.0150 mg/L
 6/6 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 single worst sample on record — 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 Lafayette

SupplierPopulation served
LAFAYETTE WATER WORKS 70,835
WILDCAT HIGHLANDS 360
SHADELAND MOBILE HOME PARK 200
MODERNAIRE TRAILER COURT 105
ROYAL OAKS ESTATES LLC 95
KINGS RIDGE HOMEOWNERS ASSOCIATION 90

Frequently asked questions about Lafayette tap water

Is Lafayette tap water safe to drink?

EPA testing detected 23 contaminants in the water serving Lafayette. 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 Lafayette?

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

What contaminants are in Lafayette's water?

The contaminants EPA monitoring detected in Lafayette include Nitrate, Nitrate-Nitrite, Copper, Barium, Fluoride. The full list, with the highest level found 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.