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National Drinking Water Database


Chlorite in Missouri


Chlorite is a disinfection byproduct resulting from water treatment with chlorine dioxide, or from the use of chlorine dioxide as a bleaching agent for cellulose, paper pulp, flour and oils. [read more]

The Most Polluted Communities in Missouri

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

Ranked by highest average Chlorite level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Cameron
Cameron, MO
9,78847 of 47570.21 ppb
(283.33 to 803.33 ppb)
2Hamilton
Hamilton, MO
1,75047 of 47545.18 ppb
(50 to 910 ppb)
3Bethany
Bethany, MO
3,16049 of 49483.2 ppb
(90 to 900 ppb)
4Smithville
Smithville, MO
9,40846 of 46446.74 ppb
(130 to 760 ppb)
5Harrisonville
Harrisonville, MO
8,18647 of 47427.8 ppb
(56.67 to 746.67 ppb)
6King City
King City, MO
1,18747 of 47413.55 ppb
(106.67 to 740 ppb)
7North Central MO Regional Water Com
MO
2528 of 28399.17 ppb
(266.67 to 686.67 ppb)
8Maryville
Maryville, MO
9,87245 of 47365.82 ppb
(0 to 803.33 ppb)
9Milan
Milan, MO
2,12519 of 19321.93 ppb
(93.33 to 470 ppb)
10Lamar
Lamar, MO
4,42547 of 49314.76 ppb
(0 to 1353.33 ppb)

Health Based Limits for Chlorite

StandardDescriptionLevel
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.800 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.800 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.840 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.840 ppb
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.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.1000 ppb

Violation Summary for Chlorite 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
Monitoring and Reporting Disinfection Byproduct Rule8