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EWG's Tap Water Database — 2021 UPDATE

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Chlorite

Manhattan Beach Water Department

Chlorite is a disinfection byproduct resulting from water treatment with chlorine dioxide. Chlorite decreases hemoglobin levels and causes other hematologic effects. Read More.

Chlorite also forms when chlorine dioxide is used as a bleaching agent for textiles, paper pulp, flour and oils, and from the use of chlorine dioxide in food and packaging.� In 2009, California published a public health goal of 50 parts per billion for chlorite in drinking water. California state scientists reported that chlorite causes red blood cell damage, affects sperm and thyroid function, and may alter behavior and neurodevelopment of rat pups exposed in the womb.

Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

88

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND160ND
2015ND120ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND120ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 50 ppb

The EWG Health Guideline of 50 ppb for chlorite was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against change in blood chemistry.

EPA Maximum Contaminant
Level (MCL) 1,000 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-099588-802-0830ND
2014-01-099588-800-0950ND
2014-01-099588-801-0930ND
2014-01-099588-803-0725ND
2014-04-309588-803-0830ND
2014-04-309588-802-1027ND
2014-04-309588-801-0922ND
2014-04-309588-800-0935ND
2014-07-189588-803-0940ND
2014-07-189588-802-0820ND
2014-07-189588-801-0915ND
2014-07-189588-800-0845ND
2014-10-229588-802-0802ND
2014-10-229588-801-1006ND
2014-10-229588-803-0821ND
2014-10-229588-800-0915ND
2015-01-079588-802-1100ND
2015-01-079588-803-1155ND
2015-01-079588-801-1030ND
2015-01-079588-800-0930ND
2015-04-079588-803-1107ND
2015-04-079588-802-1050ND
2015-04-079588-800-0839ND
2015-04-079588-801-0824ND
2015-07-169588-800-0815ND
2015-07-169588-803-0830ND
2015-07-169588-801-0830ND
2015-07-169588-802-0830ND
2016-01-219588-800-1112ND
2016-01-219588-803-0917ND
2016-01-219588-801-1215ND
2016-01-219588-802-1143ND
2016-04-149588-800-1022ND
2016-04-149588-803-0910ND
2016-04-149588-801-1110ND
2016-04-149588-802-0935ND
2016-07-141644-801-1037ND
2016-07-141644-800-1001ND
2016-07-141644-803-0855ND
2016-07-141644-802-1130ND
2016-10-259588-803-0815ND
2016-10-259588-802-0826ND
2016-10-259588-800-0850ND
2016-10-259588-801-0906ND
2017-01-189588-802-1005ND
2017-01-189588-803-1300ND
2017-01-189588-800-1045ND
2017-01-189588-801-1128ND
2017-04-209588-802-0856ND
2017-04-209588-800-0930ND
2017-04-209588-801-1012ND
2017-04-209588-803-0820ND
2017-07-199588-800-1040ND
2017-07-199588-803-0935ND
2017-07-199588-801-1050ND
2017-07-199588-802-0959ND
2017-10-259588-800-1002ND
2017-10-259588-803-0934ND
2017-10-259588-801-1025ND
2017-10-259588-802-1053ND
2018-01-129588-800-0920ND
2018-01-129588-801-0934ND
2018-01-129588-803-0843ND
2018-01-129588-802-0903ND
2018-04-189588-801-1040ND
2018-04-189588-800-1021ND
2018-04-189588-803-0917ND
2018-04-189588-802-1005ND
2018-07-259588-802-1043ND
2018-07-259588-800-1012ND
2018-07-259588-803-0952ND
2018-07-259588-801-1026ND
2018-10-189588-803-0702ND
2018-10-189588-801-1125ND
2018-10-189588-800-0856ND
2018-10-189588-802-1150ND
2019-01-299588-803-0726ND
2019-01-299588-800-0900ND
2019-01-299588-802-1107ND
2019-01-299588-801-1039ND
2019-04-169588-800-1031ND
2019-04-169588-803-1112ND
2019-04-169588-802-1055ND
2019-04-169588-801-1016ND
2019-07-169588-800-0827ND
2019-07-169588-803-0718ND
2019-07-169588-802-0808ND
2019-07-169588-801-0846ND