Know Your Environment. Protect Your Health.

Chlorite

Greenville

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.

 

75

Samples

1

Samples exceeding legal limit (MCL)

34

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018103.7 ppb121210.00 ppb - 450.0 ppb
2019101.1 ppb1210ND - 460.0 ppb
202086.9 ppb126ND - 410.0 ppb
2021304.9 ppb1513ND - 1,400.0 ppb
202258.0 ppb126ND - 270.0 ppb
202345.7 ppb125ND - 390.0 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-02-20387649322.0 ppb
2018-02-203876491270.0 ppb
2018-02-20387649219.0 ppb
2018-04-093907083180.0 ppb
2018-04-09390708422.0 ppb
2018-04-09390708510.00 ppb
2018-09-124055067450.0 ppb
2018-09-12405506855.0 ppb
2018-09-12405506938.0 ppb
2018-10-10408497020.0 ppb
2018-10-10408496918.0 ppb
2018-10-104084971140.0 ppb
2019-01-07416675215.0 ppb
2019-01-07416675117.0 ppb
2019-01-074166750240.0 ppb
2019-06-174327124ND
2019-06-174327123ND
2019-06-17432712295.0 ppb
2019-07-16435508820.0 ppb
2019-07-16435508710.00 ppb
2019-07-164355086240.0 ppb
2019-12-04450423144.0 ppb
2019-12-04450423072.0 ppb
2019-12-044504229460.0 ppb
2020-02-184568266120.0 ppb
2020-02-184568265130.0 ppb
2020-02-184568264320.0 ppb
2020-05-194631593ND
2020-05-19463159452.0 ppb
2020-05-194631595ND
2020-08-124696885ND
2020-08-124696886ND
2020-08-124696887ND
2020-10-194753903410.0 ppb
2020-10-194753905ND
2020-10-19475390411.0 ppb
2021-02-03482719967.0 ppb
2021-02-03482719821.0 ppb
2021-02-034827197190.0 ppb
2021-05-034891202840.0 ppb
2021-05-034891203880.0 ppb
2021-05-0348912041,400.0 ppb
2021-05-204908684150.0 ppb
2021-05-204908685110.0 ppb
2021-05-204908686340.0 ppb
2021-07-144956101250.0 ppb
2021-07-144956102ND
2021-07-144956103ND
2021-11-29810-8606-2100.0 ppb
2021-11-29810-8606-1140.0 ppb
2021-11-29810-8606-385.0 ppb
2022-01-11810-11844-358.0 ppb
2022-01-11810-11844-267.0 ppb
2022-01-11810-11844-1160.0 ppb
2022-04-18810-21351-1ND
2022-04-18810-21351-211.0 ppb
2022-04-18810-21351-3ND
2022-09-14810-37537-2ND
2022-09-14810-37537-3ND
2022-09-14810-37537-1270.0 ppb
2022-10-31810-43246-3ND
2022-10-31810-43246-2ND
2022-10-31810-43246-1130.0 ppb
2023-02-13810-53430-3ND
2023-02-13810-53430-2ND
2023-02-13810-53430-142.0 ppb
2023-04-19810-60472-113.0 ppb
2023-04-19810-60472-2ND
2023-04-19810-60472-3ND
2023-09-20810-78790-1ND
2023-09-20810-78790-2ND
2023-09-20810-78790-3ND
2023-12-11810-87567-310.00 ppb
2023-12-11810-87567-293.0 ppb
2023-12-11810-87567-1390.0 ppb