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National Drinking Water Database

Nitrate & nitrite in Nebraska

Nitrate and nitrite enter water from fertilizer runoff, leaching from septic tanks, and erosion of natural deposits.

The Most Polluted Communities in Nebraska

523 water utilities reported detecting Nitrate & nitrite in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Nitrate & nitrite level

RankSystem Population Served Positive test results of total reported tests Average Level
1Village of Ragan
Ragan, NE
5620 of 2015.75 ppm
(14 to 17 ppm)
2Village of Belden
Belden, NE
14721 of 2113.17 ppm
(10.56 to 17 ppm)
3Pleasantview Mobile Village
Norfolk, NE
2009 of 912.97 ppm
(9.7 to 16 ppm)
4City of Humboldt
Humboldt, NE
98524 of 2412.44 ppm
(0.1 to 15 ppm)
5Village of Martinsburg
Allen, NE
11325 of 2512.37 ppm
(1 to 28 ppm)
6Village of Hildreth
Hildreth, NE
37023 of 2311.53 ppm
(8.3 to 18 ppm)
7Richardson Co. Rwd #1
Humbolt, NE
80520 of 2111.19 ppm
(0 to 13 ppm)
8Village of Trumbull
Trumbull, NE
22521 of 2110.74 ppm
(6 to 13 ppm)
9City of Edgar
Edgar, NE
54024 of 2410.27 ppm
(9.55 to 12 ppm)
10Lancaster Co. Sid #6
Lincoln, NE
6525 of 2510.1 ppm
(0.06 to 13 ppm)

Health Based Limits for Nitrate & nitrite

Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.10 ppm
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.10 ppm
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.10 ppm

Violation Summary for Nitrate & nitrite in Nebraska

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in Nebraska since 2004

Violation TypeNumber of Violations
Over maximum contaminant level, Single Sample180
Over maximum contaminant level, Average113
Failure to monitor regularly20