Know Your Environment. Protect Your Health.

Chlorite

Colorado City Md

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.

 

195

Samples

3

Samples exceeding legal limit (MCL)

165

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018446.5 ppb127ND - 1,060.0 ppb
2019429.2 ppb393910.00 ppb - 643.0 ppb
2020639.1 ppb3634ND - 1,100.0 ppb
2021345.3 ppb3628ND - 800.0 ppb
2022303.4 ppb3634ND - 680.0 ppb
2023420.0 ppb3631ND - 890.0 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 Result
2018-01-03ND
2018-01-03ND
2018-01-03ND
2018-04-03ND
2018-04-03562.0 ppb
2018-04-03ND
2018-07-091,060.0 ppb
2018-07-091,030.0 ppb
2018-07-09956.0 ppb
2018-11-14686.0 ppb
2018-11-14594.0 ppb
2018-11-14470.0 ppb
2019-01-29389.0 ppb
2019-01-29393.0 ppb
2019-01-29359.0 ppb
2019-02-20474.0 ppb
2019-02-20415.0 ppb
2019-02-20386.0 ppb
2019-03-20445.0 ppb
2019-03-20419.0 ppb
2019-03-20436.0 ppb
2019-04-09539.0 ppb
2019-04-09542.0 ppb
2019-04-09475.0 ppb
2019-04-23583.0 ppb
2019-04-23389.0 ppb
2019-04-23363.0 ppb
2019-05-21277.0 ppb
2019-05-21336.0 ppb
2019-05-21294.0 ppb
2019-06-05561.0 ppb
2019-06-05478.0 ppb
2019-06-05198.0 ppb
2019-07-11481.0 ppb
2019-07-11489.0 ppb
2019-07-11430.0 ppb
2019-08-15643.0 ppb
2019-08-15601.0 ppb
2019-08-15558.0 ppb
2019-09-10579.0 ppb
2019-09-10472.0 ppb
2019-09-10472.0 ppb
2019-10-22480.0 ppb
2019-10-2210.00 ppb
2019-10-2210.00 ppb
2019-11-19434.0 ppb
2019-11-19371.0 ppb
2019-11-19366.0 ppb
2019-12-03525.0 ppb
2019-12-03565.0 ppb
2019-12-03500.0 ppb
2020-01-0625.0 ppb
2020-01-06175.0 ppb
2020-01-06554.0 ppb
2020-02-24814.0 ppb
2020-02-24795.0 ppb
2020-02-24648.0 ppb
2020-03-10997.0 ppb
2020-03-10958.0 ppb
2020-03-10868.0 ppb
2020-04-28854.0 ppb
2020-04-28695.0 ppb
2020-04-28739.0 ppb
2020-05-12ND
2020-05-12ND
2020-05-12232.0 ppb
2020-06-15497.0 ppb
2020-06-15465.0 ppb
2020-06-15415.0 ppb
2020-07-06564.0 ppb
2020-07-06499.0 ppb
2020-07-06399.0 ppb
2020-08-03647.0 ppb
2020-08-03507.0 ppb
2020-08-03422.0 ppb
2020-09-14850.0 ppb
2020-09-14670.0 ppb
2020-09-14800.0 ppb
2020-10-14780.0 ppb
2020-10-14710.0 ppb
2020-10-14760.0 ppb
2020-11-181,100.0 ppb
2020-11-18920.0 ppb
2020-11-18930.0 ppb
2020-12-081,000.0 ppb
2020-12-08940.0 ppb
2020-12-08780.0 ppb
2021-01-28ND
2021-01-28ND
2021-01-28ND
2021-02-23ND
2021-02-2322.0 ppb
2021-02-23ND
2021-03-16ND
2021-03-16ND
2021-03-16ND
2021-04-05620.0 ppb
2021-04-05430.0 ppb
2021-04-05540.0 ppb
2021-05-05310.0 ppb
2021-05-05250.0 ppb
2021-05-05260.0 ppb
2021-06-09450.0 ppb
2021-06-09420.0 ppb
2021-06-09480.0 ppb
2021-07-07600.0 ppb
2021-07-07530.0 ppb
2021-07-07610.0 ppb
2021-08-10420.0 ppb
2021-08-10590.0 ppb
2021-08-10350.0 ppb
2021-09-22650.0 ppb
2021-09-22160.0 ppb
2021-09-22350.0 ppb
2021-10-18640.0 ppb
2021-10-1855.0 ppb
2021-10-18600.0 ppb
2021-11-09700.0 ppb
2021-11-0952.0 ppb
2021-11-09620.0 ppb
2021-12-07800.0 ppb
2021-12-07250.0 ppb
2021-12-07670.0 ppb
2022-01-24ND
2022-01-24ND
2022-01-24630.0 ppb
2022-02-0953.0 ppb
2022-02-0924.0 ppb
2022-02-0994.0 ppb
2022-03-15350.0 ppb
2022-03-1568.0 ppb
2022-03-15300.0 ppb
2022-04-13360.0 ppb
2022-04-13110.0 ppb
2022-04-13340.0 ppb
2022-05-17470.0 ppb
2022-05-17140.0 ppb
2022-05-17460.0 ppb
2022-06-15570.0 ppb
2022-06-15140.0 ppb
2022-06-15420.0 ppb
2022-07-19560.0 ppb
2022-07-19130.0 ppb
2022-07-19500.0 ppb
2022-08-25500.0 ppb
2022-08-25150.0 ppb
2022-08-25330.0 ppb
2022-09-20580.0 ppb
2022-09-20210.0 ppb
2022-09-20540.0 ppb
2022-10-18430.0 ppb
2022-10-1879.0 ppb
2022-10-18350.0 ppb
2022-11-02680.0 ppb
2022-11-02150.0 ppb
2022-11-02330.0 ppb
2022-12-06650.0 ppb
2022-12-0624.0 ppb
2022-12-06200.0 ppb
2023-01-24680.0 ppb
2023-01-24340.0 ppb
2023-01-24460.0 ppb
2023-02-06750.0 ppb
2023-02-06ND
2023-02-06470.0 ppb
2023-03-08240.0 ppb
2023-03-08740.0 ppb
2023-03-08760.0 ppb
2023-04-04590.0 ppb
2023-04-04ND
2023-04-04520.0 ppb
2023-05-02ND
2023-05-02ND
2023-05-0211.0 ppb
2023-06-05650.0 ppb
2023-06-05100.0 ppb
2023-06-05630.0 ppb
2023-07-12630.0 ppb
2023-07-12530.0 ppb
2023-07-12670.0 ppb
2023-08-01740.0 ppb
2023-08-01510.0 ppb
2023-08-01890.0 ppb
2023-09-05810.0 ppb
2023-09-05300.0 ppb
2023-09-05550.0 ppb
2023-10-11580.0 ppb
2023-10-11430.0 ppb
2023-10-11470.0 ppb
2023-11-0819.0 ppb
2023-11-08110.0 ppb
2023-11-08ND
2023-12-19450.0 ppb
2023-12-19180.0 ppb
2023-12-19310.0 ppb