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Tap water quality report

Louisville, NE

EPA monitoring detected 18 contaminants across the 2 water suppliers serving Louisville. 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
1,470
people served
18
contaminants found
Nebraska rankings Lead in Nebraska PFAS in Nebraska

What was found in Louisville'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-Nitrite
277 µg/L 2.8%
of the EPA limit 10000 µg/L
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
Highest in the city: 7766 µg/L — RAVEN'S NEST · 70 people · 2019
2/2 SYR4
Copper
1040.15 µg/L 80%
of the EPA limit 1300 µg/L
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
Highest in the city: 2829 µg/L — RAVEN'S NEST · 70 people · 2019
2/2 SYR4
Fluoride
1391 µg/L 35%
of the EPA limit 4000 µg/L
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
1/2 SYR4
Barium
249.6 µg/L 12%
of the EPA limit 2000 µg/L
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2018
2/2 SYR4
TTHM
14.19 µg/L 18%
of the EPA limit 80 µg/L
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
11.44 µg/L 19%
of the EPA limit 60 µg/L
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
1/2 SYR4
Chromium
9.2065 µg/L 9.2%
of the EPA limit 100 µg/L
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2018
2/2 SYR4
Lead
2.5225 µg/L 17%
of the EPA limit 15 µg/L
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
Highest in the city: 7.252 µg/L — RAVEN'S NEST · 70 people · 2019
2/2 SYR4
Dichloroacetic Acid
6.09 µg/L
No EPA limit set
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
1/2 SYR4
Bromodichloromethane
5.9945 µg/L
No EPA limit set
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
1/2 SYR4
Chloroform
5.706 µg/L
No EPA limit set
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
1/2 SYR4
Trichloroacetic Acid
4.48 µg/L
No EPA limit set
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
1/2 SYR4
Dibromochloromethane
4.2575 µg/L
No EPA limit set
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
1/2 SYR4
Selenium
3.2638 µg/L 6.5%
of the EPA limit 50 µg/L
Highest in the city: RAVEN'S NEST · 70 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
2.4825 pCi/L 50%
of the EPA limit 5 pCi/L
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2018
1/2 SYR4
Dibromoacetic Acid
1.5035 µg/L
No EPA limit set
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
1/2 SYR4
Bromoform
0.7280 µg/L
No EPA limit set
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2019
1/2 SYR4
Lead
0.0033 mg/L 22%
of the EPA limit 0.0150 mg/L
Main supplier: LOUISVILLE, CITY OF · 1,400 people · 2025
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 Louisville

SupplierPopulation served
LOUISVILLE, CITY OF 1,400
RAVEN'S NEST 70

Frequently asked questions about Louisville tap water

Is Louisville tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Louisville. 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 Louisville?

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

What contaminants are in Louisville's water?

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