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EWG's Tap Water Database — 2019 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.

 

88

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND120ND
2013ND160ND
2014ND160ND
2015ND120ND
2016ND160ND
2017ND160ND

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
2012-04-309588-800-0900ND
2012-04-309588-801-0920ND
2012-04-309588-802-0830ND
2012-04-309588-803-0755ND
2012-07-269588-801-1058ND
2012-07-269588-803-0808ND
2012-07-269588-800-0854ND
2012-07-269588-802-0808ND
2012-10-249588-801-1050ND
2012-10-249588-803-0715ND
2012-10-249588-800-0927ND
2012-10-249588-802-0830ND
2013-01-239588-802-1223ND
2013-01-239588-801-0936ND
2013-01-239588-800-0836ND
2013-01-239588-803-1154ND
2013-04-249588-802-0836ND
2013-04-249588-803-1211ND
2013-04-249588-800-1000ND
2013-04-249588-801-1046ND
2013-07-129588-802-0817ND
2013-07-129588-800-0842ND
2013-07-129588-803-0750ND
2013-07-129588-801-0928ND
2013-10-119588-801-1150ND
2013-10-119588-800-1130ND
2013-10-119588-803-0945ND
2013-10-119588-802-0920ND
2014-01-099588-801-0930ND
2014-01-099588-803-0725ND
2014-01-099588-802-0830ND
2014-01-099588-800-0950ND
2014-04-309588-801-0922ND
2014-04-309588-802-1027ND
2014-04-309588-803-0830ND
2014-04-309588-800-0935ND
2014-07-189588-803-0940ND
2014-07-189588-800-0845ND
2014-07-189588-801-0915ND
2014-07-189588-802-0820ND
2014-10-229588-800-0915ND
2014-10-229588-801-1006ND
2014-10-229588-802-0802ND
2014-10-229588-803-0821ND
2015-01-079588-800-0930ND
2015-01-079588-801-1030ND
2015-01-079588-802-1100ND
2015-01-079588-803-1155ND
2015-04-079588-801-0824ND
2015-04-079588-803-1107ND
2015-04-079588-800-0839ND
2015-04-079588-802-1050ND
2015-07-169588-801-0830ND
2015-07-169588-803-0830ND
2015-07-169588-800-0815ND
2015-07-169588-802-0830ND
2016-01-219588-802-1143ND
2016-01-219588-801-1215ND
2016-01-219588-800-1112ND
2016-01-219588-803-0917ND
2016-04-149588-802-0935ND
2016-04-149588-803-0910ND
2016-04-149588-800-1022ND
2016-04-149588-801-1110ND
2016-07-141644-802-1130ND
2016-07-141644-800-1001ND
2016-07-141644-803-0855ND
2016-07-141644-801-1037ND
2016-10-259588-801-0906ND
2016-10-259588-800-0850ND
2016-10-259588-803-0815ND
2016-10-259588-802-0826ND
2017-01-189588-801-1128ND
2017-01-189588-803-1300ND
2017-01-189588-802-1005ND
2017-01-189588-800-1045ND
2017-04-209588-801-1012ND
2017-04-209588-802-0856ND
2017-04-209588-803-0820ND
2017-04-209588-800-0930ND
2017-07-199588-803-0935ND
2017-07-199588-800-1040ND
2017-07-199588-801-1050ND
2017-07-199588-802-0959ND
2017-10-259588-800-1002ND
2017-10-259588-801-1025ND
2017-10-259588-802-1053ND
2017-10-259588-803-0934ND