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National Drinking Water Database


Nitrate in Minnesota


Nitrate enters drinking water sources from fertilizer runoff, leaching septic tanks, and erosion of natural deposits; it is also emitted by chemical, petrochemical and metal-finishing industries. [read more]

The Most Polluted Communities in Minnesota

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

Ranked by highest average Nitrate level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Edgerton
Edgerton, MN
1,00323 of 238.34 ppm
(3.3 to 12 ppm)
2Chandler
Chandler, MN
27627 of 278.25 ppm
(6.2 to 12.2 ppm)
3Adrian
Adrian, MN
1,23427 of 278.23 ppm
(4.6 to 20 ppm)
4Mobile Manor Mobile Home Park
Shakopee, MN
14017 of 177.75 ppm
(6.15 to 8.75 ppm)
5Rockwood Estates
Rice, MN
40012 of 127.44 ppm
(0.59 to 11 ppm)
6Hastings
Hastings, MN
21,63125 of 256.96 ppm
(5.5 to 8.8 ppm)
7Elgin
Elgin, MN
8268 of 86.79 ppm
(5.5 to 8.7 ppm)
8Utica
St Charles, MN
23018 of 186.79 ppm
(4.25 to 9.55 ppm)
9Leota
Leota, MN
27514 of 146.43 ppm
(1.7 to 11 ppm)
10Battle Lake Mobile Home Park
Fergus Falls, MN
319 of 106.28 ppm
(0 to 9.2 ppm)

Health Based Limits for Nitrate

StandardDescriptionLevel
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
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.10 ppm
Children's health-based limit for 1-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.10 ppm
Children's health-based limit for 10-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.10 ppm

Violation Summary for Nitrate in Minnesota

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

Violation TypeNumber of Violations
Failure to monitor regularly11
Over maximum contaminant level, Average3