Know Your Environment. Protect Your Health.

Chlorite

City of La Villa

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.

 

213

Samples

0

Samples exceeding legal limit (MCL)

101

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018185.1 ppb3633ND - 457.0 ppb
2019209.7 ppb3631ND - 421.0 ppb
2020147.4 ppb3328ND - 538.0 ppb
202174.9 ppb3623ND - 322.0 ppb
202226.2 ppb369ND - 725.0 ppb
20237.94 ppb368ND - 68.9 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
2018-01-221655122282.0 ppb
2018-01-221655123355.0 ppb
2018-01-221655124457.0 ppb
2018-02-141661846151.0 ppb
2018-02-141661847257.0 ppb
2018-02-141661848176.0 ppb
2018-03-08166780460.8 ppb
2018-03-08166780579.3 ppb
2018-03-081667806116.0 ppb
2018-04-231678982332.0 ppb
2018-04-231678983347.0 ppb
2018-04-231678984328.0 ppb
2018-05-151685122271.0 ppb
2018-05-151685123250.0 ppb
2018-05-151685124203.0 ppb
2018-06-27169633954.9 ppb
2018-06-27169634283.5 ppb
2018-06-27169634344.3 ppb
2018-07-101699456ND
2018-07-101699457ND
2018-07-101699458ND
2018-08-15171030599.7 ppb
2018-08-15171030671.9 ppb
2018-08-15171030798.0 ppb
2018-09-111716532216.0 ppb
2018-09-111716533287.0 ppb
2018-09-111716534276.0 ppb
2018-10-11172642287.1 ppb
2018-10-11172642375.5 ppb
2018-10-111726424120.0 ppb
2018-11-071733807199.0 ppb
2018-11-071733808217.0 ppb
2018-11-071733809206.0 ppb
2018-12-051741613209.0 ppb
2018-12-051741614327.0 ppb
2018-12-051741615325.0 ppb
2019-01-151751080301.0 ppb
2019-01-151751081213.0 ppb
2019-01-151751082309.0 ppb
2019-02-061757028254.0 ppb
2019-02-061757029248.0 ppb
2019-02-061757030105.0 ppb
2019-03-131766719183.0 ppb
2019-03-131766720338.0 ppb
2019-03-131766721358.0 ppb
2019-04-101774403164.0 ppb
2019-04-101774405171.0 ppb
2019-04-101774406215.0 ppb
2019-05-081782127340.0 ppb
2019-05-081782128247.0 ppb
2019-05-081782129387.0 ppb
2019-06-221794867ND
2019-06-221794868ND
2019-06-221794869ND
2019-07-161802483ND
2019-07-16180248425.6 ppb
2019-07-16180248534.6 ppb
2019-08-131810080352.0 ppb
2019-08-13181008243.2 ppb
2019-08-131810083ND
2019-09-101818511271.0 ppb
2019-09-101818512393.0 ppb
2019-09-101818513150.0 ppb
2019-10-171830402330.0 ppb
2019-10-171830403421.0 ppb
2019-10-171830404273.0 ppb
2019-11-131837707110.0 ppb
2019-11-131837709147.0 ppb
2019-11-13183771078.0 ppb
2019-12-101845462344.0 ppb
2019-12-101845463384.0 ppb
2019-12-101845464359.0 ppb
2020-01-14185587826.6 ppb
2020-01-14185587950.4 ppb
2020-02-14186367015.7 ppb
2020-02-14186367111.6 ppb
2020-02-141863672ND
2020-03-181872501171.0 ppb
2020-03-181872502168.0 ppb
2020-04-091878781385.0 ppb
2020-04-091878783343.0 ppb
2020-05-051885712295.0 ppb
2020-05-051885714191.0 ppb
2020-05-051885715234.0 ppb
2020-06-021893679332.0 ppb
2020-06-021893681135.0 ppb
2020-06-021893682163.0 ppb
2020-07-07190310033.0 ppb
2020-07-07190310279.8 ppb
2020-07-07190310347.3 ppb
2020-08-041911108ND
2020-08-041911109ND
2020-08-041911110ND
2020-09-141923962104.0 ppb
2020-09-141923964538.0 ppb
2020-09-141923965470.0 ppb
2020-10-13193193723.8 ppb
2020-10-13193193839.7 ppb
2020-10-131931939ND
2020-11-091938777166.0 ppb
2020-11-091938778108.0 ppb
2020-11-09193877997.9 ppb
2020-12-211949934382.0 ppb
2020-12-211949935187.0 ppb
2020-12-21194993666.8 ppb
2021-01-11195422296.1 ppb
2021-01-11195422375.8 ppb
2021-01-11195422483.1 ppb
2021-02-081962994322.0 ppb
2021-02-081962995276.0 ppb
2021-02-081962996223.0 ppb
2021-03-07196833163.1 ppb
2021-03-07196833249.7 ppb
2021-03-07196833354.8 ppb
2021-04-051977716206.0 ppb
2021-04-051977717177.0 ppb
2021-04-051977718187.0 ppb
2021-05-101987715ND
2021-05-101987716ND
2021-05-101987717ND
2021-06-07199450150.4 ppb
2021-06-071994502ND
2021-06-07199450316.1 ppb
2021-07-122004464287.0 ppb
2021-07-122004467227.0 ppb
2021-07-12200446830.7 ppb
2021-08-10201416016.1 ppb
2021-08-102014161ND
2021-08-102014162ND
2021-09-13202424420.5 ppb
2021-09-132024245ND
2021-09-132024246ND
2021-10-12203270649.5 ppb
2021-10-122032707ND
2021-10-122032708ND
2021-11-0920404500ND
2021-11-092040498ND
2021-11-092040499ND
2021-12-14205024535.8 ppb
2021-12-14205024677.5 ppb
2021-12-14205024770.9 ppb
2022-01-102056838ND
2022-01-102056839ND
2022-01-102056840ND
2022-02-15206694232.2 ppb
2022-02-152066944ND
2022-02-152066945ND
2022-03-14207514840.8 ppb
2022-03-14207514955.7 ppb
2022-03-142075150725.0 ppb
2022-04-122084385ND
2022-04-122084386ND
2022-04-12208438726.9 ppb
2022-05-12209150111.9 ppb
2022-05-122091502ND
2022-05-122091503ND
2022-06-142100812ND
2022-06-142100813ND
2022-06-142100814ND
2022-07-14210873324.9 ppb
2022-07-142108734ND
2022-07-14210873510.8 ppb
2022-08-152117677ND
2022-08-152117678ND
2022-08-152117679ND
2022-09-202128967ND
2022-09-202128968ND
2022-09-202128969ND
2022-10-20213774016.7 ppb
2022-10-202137741ND
2022-10-202137742ND
2022-11-172146820ND
2022-11-172146821ND
2022-11-172146822ND
2022-12-192155482ND
2022-12-192155483ND
2022-12-192155484ND
2023-01-17216311210.00 ppb
2023-01-172163113ND
2023-01-172163114ND
2023-02-202173071ND
2023-02-202173072ND
2023-02-202173073ND
2023-03-162180503ND
2023-03-162180504ND
2023-03-162180505ND
2023-04-142189122ND
2023-04-142189123ND
2023-04-142189124ND
2023-05-16219878268.9 ppb
2023-05-162198783ND
2023-05-16219878443.6 ppb
2023-06-162207297ND
2023-06-162207298ND
2023-06-162207299ND
2023-07-182215607ND
2023-07-182215608ND
2023-07-182215609ND
2023-08-152223414ND
2023-08-152223415ND
2023-08-152223416ND
2023-09-18223251424.0 ppb
2023-09-182232515ND
2023-09-18223251616.6 ppb
2023-10-192242232ND
2023-10-192242233ND
2023-10-192242234ND
2023-11-14224922010.6 ppb
2023-11-142249222ND
2023-11-142249223ND
2023-12-192258509ND
2023-12-19225851067.6 ppb
2023-12-19225851144.4 ppb