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Tap water quality report

Gretna, NE

EPA monitoring detected 18 contaminants across the 4 water suppliers serving Gretna. 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.

4
water suppliers
10,838
people served
18
contaminants found
Nebraska rankings Lead in Nebraska PFAS in Nebraska

What was found in Gretna'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
6090 µg/L 61%
of the EPA limit 10000 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
4/4 SYR4
Fluoride
1036 µg/L 26%
of the EPA limit 4000 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
4/4 SYR4
Copper
646.5 µg/L 50%
of the EPA limit 1300 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2017
4/4 SYR4
Barium
143.75 µg/L 7.2%
of the EPA limit 2000 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
4/4 SYR4
Lithium
19.1 µg/L
No EPA limit set
Main supplier: GRETNA, CITY OF · 8,661 people · 2024
1/4 UCMR-5
Chromium
11.12 µg/L 11%
of the EPA limit 100 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
Highest in the city: 17.2435 µg/L — SARPY CO SID 34 - SARPY HEIGHTS · 125 people · 2017
4/4 SYR4
Selenium
9.4625 µg/L 19%
of the EPA limit 50 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
Highest in the city: 12.599 µg/L — SARPY CO SID 34 - SARPY HEIGHTS · 125 people · 2017
3/4 SYR4
Lead
3.698 µg/L 25%
of the EPA limit 15 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2017
Highest in the city: 10.4975 µg/L — SARPY CO SID 24 - THOUSAND OAKS · 60 people · 2017
4/4 SYR4
Dinoseb
4.4 µg/L 63%
of the EPA limit 7 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
1/4 SYR4
Cyanide
3.2 µg/L 1.6%
of the EPA limit 200 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
1/4 SYR4
Arsenic
2.576 µg/L 26%
of the EPA limit 10 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
1/4 SYR4
Combined Radium (-226 And -228)
2.015 pCi/L 40%
of the EPA limit 5 pCi/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2018
4/4 SYR4
TTHM
1.7375 µg/L 2.2%
of the EPA limit 80 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
1/4 SYR4
Bromoform
1.0619 µg/L
No EPA limit set
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
1/4 SYR4
Dibromochloromethane
0.6916 µg/L
No EPA limit set
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
1/4 SYR4
Lasso
0.2416 µg/L 12%
of the EPA limit 2 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
1/4 SYR4
Atrazine
0.0906 µg/L 3%
of the EPA limit 3 µg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2019
1/4 SYR4
Lead
0.0013 mg/L 8.7%
of the EPA limit 0.0150 mg/L
Main supplier: GRETNA, CITY OF · 8,661 people · 2023
Highest in the city: 0.0080 mg/L — SARPY CO SID 34 - SARPY HEIGHTS · 125 people · 2024
4/4 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 Gretna

SupplierPopulation served
GRETNA, CITY OF 8,661
SARPY CO SID 158 - TIBURON GOLF COURSE 1,992
SARPY CO SID 34 - SARPY HEIGHTS 125
SARPY CO SID 24 - THOUSAND OAKS 60

Frequently asked questions about Gretna tap water

Is Gretna tap water safe to drink?

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

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

What contaminants are in Gretna's water?

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