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EWG's Tap Water Database — 2021 UPDATE

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Chlorite

City of La Palma

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

 

144

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
2014ND240ND
2015ND320ND
2016ND320ND
2017ND240ND
2018ND320ND
2019N/A00N/A

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
2014-02-149588-801-1150ND
2014-02-149588-802-1126ND
2014-02-149588-803-1045ND
2014-02-149588-804-1108ND
2014-02-149588-805-1057ND
2014-02-149588-806-1118ND
2014-02-149588-807-1030ND
2014-02-149588-808-1137ND
2014-08-149588-801-1110ND
2014-08-149588-802-1057ND
2014-08-149588-803-1015ND
2014-08-149588-804-1037ND
2014-08-149588-805-1025ND
2014-08-149588-806-1046ND
2014-08-149588-807-1007ND
2014-08-149588-808-1120ND
2014-11-119588-801-1355ND
2014-11-119588-802-1330ND
2014-11-119588-803-1241ND
2014-11-119588-804-1303ND
2014-11-119588-805-1252ND
2014-11-119588-806-1314ND
2014-11-119588-807-1230ND
2014-11-119588-808-1342ND
2015-02-129588-801-1200ND
2015-02-129588-802-1135ND
2015-02-129588-803-1057ND
2015-02-129588-804-1120ND
2015-02-129588-805-1110ND
2015-02-129588-806-1125ND
2015-02-129588-807-1045ND
2015-02-129588-808-1145ND
2015-05-079588-801-0845ND
2015-05-079588-802-0820ND
2015-05-079588-803-0736ND
2015-05-079588-804-0810ND
2015-05-079588-805-0745ND
2015-05-079588-806-0756ND
2015-05-079588-807-0725ND
2015-05-079588-808-0832ND
2015-08-049588-801-1200ND
2015-08-049588-802-1131ND
2015-08-049588-803-1050ND
2015-08-049588-804-1112ND
2015-08-049588-805-1102ND
2015-08-049588-806-1120ND
2015-08-049588-807-1040ND
2015-08-049588-808-1142ND
2015-11-039588-801-1133ND
2015-11-039588-802-1142ND
2015-11-039588-803-1155ND
2015-11-039588-804-1210ND
2015-11-039588-805-1222ND
2015-11-039588-806-1234ND
2015-11-039588-807-1120ND
2015-11-039588-808-1245ND
2016-02-019588-801-0705ND
2016-02-019588-802-0640ND
2016-02-019588-803-0535ND
2016-02-019588-804-0600ND
2016-02-019588-805-0611ND
2016-02-019588-806-0550ND
2016-02-019588-807-0525ND
2016-02-019588-808-0655ND
2016-05-029588-801-0910ND
2016-05-029588-802-0855ND
2016-05-029588-803-0800ND
2016-05-029588-804-0810ND
2016-05-029588-805-0830ND
2016-05-029588-806-0822ND
2016-05-029588-807-0750ND
2016-05-029588-808-0905ND
2016-08-019588-801-0749ND
2016-08-019588-802-0840ND
2016-08-019588-803-0850ND
2016-08-019588-804-0800ND
2016-08-019588-805-0825ND
2016-08-019588-806-0915ND
2016-08-019588-807-0735ND
2016-08-019588-808-0925ND
2016-11-039588-801-1205ND
2016-11-039588-802-1230ND
2016-11-039588-803-1303ND
2016-11-039588-804-1241ND
2016-11-039588-805-1252ND
2016-11-039588-806-1316ND
2016-11-039588-807-1339ND
2016-11-039588-808-1221ND
2017-02-069588-801-0900ND
2017-02-069588-802-1005ND
2017-02-069588-803-1128ND
2017-02-069588-804-1024ND
2017-02-069588-805-1103ND
2017-02-069588-806-1046ND
2017-02-069588-807-1337ND
2017-02-069588-808-0942ND
2017-05-049588-801-1117ND
2017-05-049588-802-1128ND
2017-05-049588-803-1234ND
2017-05-049588-804-1205ND
2017-05-049588-805-1218ND
2017-05-049588-806-1142ND
2017-05-049588-807-1054ND
2017-05-049588-808-1156ND
2017-08-119588-801-1115ND
2017-08-119588-802-1137ND
2017-08-119588-803-1124ND
2017-08-119588-804-1148ND
2017-08-119588-805-1214ND
2017-08-119588-806-1203ND
2017-08-119588-807-1245ND
2017-08-119588-808-1127ND
2018-02-019588-801-1013ND
2018-02-019588-802-1032ND
2018-02-019588-803-1115ND
2018-02-019588-804-1051ND
2018-02-019588-805-1101ND
2018-02-019588-806-1101ND
2018-02-019588-807-1134ND
2018-02-019588-808-1023ND
2018-05-039588-801-0945ND
2018-05-039588-802-1009ND
2018-05-039588-803-1044ND
2018-05-039588-804-1020ND
2018-05-039588-805-1100ND
2018-05-039588-806-1032ND
2018-05-039588-807-1140ND
2018-05-039588-808-0958ND
2018-08-029588-801-1157ND
2018-08-029588-802-1228ND
2018-08-029588-803-1310ND
2018-08-029588-804-1256ND
2018-08-029588-805-1328ND
2018-08-029588-806-1243ND
2018-08-029588-807-1354ND
2018-08-029588-808-1214ND
2018-11-029588-801-0948ND
2018-11-029588-802-1013ND
2018-11-029588-803-1025ND
2018-11-029588-804-1107ND
2018-11-029588-805-1055ND
2018-11-029588-806-1041ND
2018-11-029588-807-1120ND
2018-11-029588-808-0959ND