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National Drinking Water Database


Nitrate in Michigan


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 Michigan

274 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)
1Twin Lakes Trailer Court
Three Rivers, MI
483 of 312.4 ppm
(8.4 to 17.2 ppm)
2Somerset Mobile Home Park
Berkley, MI
1404 of 410.3 ppm
(9.3 to 11.6 ppm)
3Barn Swallow Apartments
Venice, MI
503 of 38.57 ppm
(8 to 9.2 ppm)
4Hylander Valley
Novi, MI
1581 of 17.9 ppm
(7.9 ppm)
5Golden Pond Estates
Vero Beach, MI
1025 of 56.93 ppm
(6 to 8.35 ppm)
6Middleville
Middleville, MI
3,2617 of 76.58 ppm
(0.8 to 12.5 ppm)
7Greenville Acres
Greenville, MI
504 of 46.43 ppm
(6.2 to 6.7 ppm)
8Gun River Estates West
Holland, MI
1524 of 46.3 ppm
(5.9 to 7.25 ppm)
9Whispering Pines
Belmont, MI
1253 of 36.13 ppm
(3 to 8.2 ppm)
10Cassopolis
Cassopolis, MI
1,9501 of 26 ppm
(0 to 12 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 Michigan

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

Violation TypeNumber of Violations
Failure to monitor regularly9
Over maximum contaminant level, Average5