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

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
7550 µg/L 76%
of the EPA limit 10000 µg/L
 4/4 SYR4
Copper
1870 µg/L 144%
of the EPA limit, in the worst sample — 1300 µg/L
 4/4 SYR4
Fluoride
1090 µg/L 27%
of the EPA limit 4000 µg/L
 4/4 SYR4
Barium
146 µg/L 7.3%
of the EPA limit 2000 µg/L
 4/4 SYR4
Lithium
19.1 µg/L
No EPA limit set
 1/4 UCMR-5
Chromium
18.1 µg/L 18%
of the EPA limit 100 µg/L
 4/4 SYR4
Lead
15.9 µg/L 106%
of the EPA limit, in the worst sample — 15 µg/L
 4/4 SYR4
Selenium
12.8 µg/L 26%
of the EPA limit 50 µg/L
 3/4 SYR4
Dinoseb
4.4 µg/L 63%
of the EPA limit 7 µg/L
 1/4 SYR4
Cyanide
3.2 µg/L 1.6%
of the EPA limit 200 µg/L
 1/4 SYR4
Arsenic
2.63 µg/L 26%
of the EPA limit 10 µg/L
 1/4 SYR4
Combined Radium (-226 And -228)
2.3 pCi/L 46%
of the EPA limit 5 pCi/L
 4/4 SYR4
TTHM
1.79 µg/L 2.2%
of the EPA limit 80 µg/L
 1/4 SYR4
Bromoform
1.1 µg/L
No EPA limit set
 1/4 SYR4
Dibromochloromethane
0.6940 µg/L
No EPA limit set
 1/4 SYR4
Lasso
0.2560 µg/L 13%
of the EPA limit 2 µg/L
 1/4 SYR4
Atrazine
0.0910 µg/L 3%
of the EPA limit 3 µg/L
 1/4 SYR4
Lead
0.0080 mg/L 54%
of the EPA limit 0.0150 mg/L
 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 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 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, Copper, Fluoride, Barium, Lithium. 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.