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National Drinking Water Database


Manganese in Missouri


Manganese is a naturally occurring element released from mineral deposits as well as industrial use.

The Most Polluted Communities in Missouri

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

Ranked by highest average Manganese level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Advance
Advance, MO
1,2002 of 2941.06 ppb
(2.11 to 1880 ppb)
2Morley
Morley, MO
7002 of 3846.67 ppb
(0 to 1310 ppb)
3Kingston
Kingston, MO
3823 of 3844.98 ppb
(<0.01 to 2533.33 ppb)
4Caldwell Co Pwsd #1
Cowgill, MO
4831 of 3823.33 ppb
(0 to 2470 ppb)
5New Madrid
New Madrid, MO
3,3293 of 3700.02 ppb
(2.06 to 1150 ppb)
6Ste Genevieve
Ste Genevieve, MO
4,5002 of 3656.33 ppb
(0 to 1014 ppb)
7Polo
Polo, MO
5863 of 3624.98 ppb
(0.03 to 1805 ppb)
8Keytesville
Keytesville, MO
6002 of 3616.1 ppb
(0 to 1790 ppb)
9Heritage Gardens of Sikeston
Sikeston, MO
883 of 3587.87 ppb
(10.6 to 885 ppb)
10Lagrange
La Grange, MO
1,0003 of 4525.8 ppb
(0 to 1605 ppb)

Health Based Limits for Manganese

StandardDescriptionLevel
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.50 ppb
National Secondary Drinking Water RegulationsA National Secondary Drinking Water Regulation is a non-enforceable guideline regarding contaminants that may cause cosmetic effects (such as taste, odor, or color). Some states choose to adopt them as enforceable standards. Source: U.S. Environmental Protection Agency. 50 ppb
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.300 ppb
Health-Based Screening LevelA benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey.300 ppb
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.1000 ppb
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.1000 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.1600 ppb

Violation Summary for Manganese in Missouri

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

Violation TypeNumber of Violations
Failure to monitor regularly10