Know Your Environment. Protect Your Health.

Monochloroacetic acid

Harris County Municipal Utility District 144

Monochloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
20191.20 ppb41ND - 4.80 ppb
2020ND40ND
2021ND40ND
2022ND40ND
20230.675 ppb41ND - 2.70 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk.a public health goal. This health guideline protects against change to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-08AE13015ND
2018-05-08AE25561ND
2018-08-01AE35297ND
2018-10-24AE44468ND
2019-01-28AE51614ND
2019-04-23AE63376ND
2019-07-30AE76384ND
2019-10-10AE862904.80 ppb
2020-01-13AE93089ND
2020-04-01AF05264ND
2020-09-21AF27873ND
2020-11-05AF33438ND
2021-03-09AF45962ND
2021-04-20AF50686ND
2021-07-23AF63233ND
2021-11-09AF76121ND
2022-03-01AF86863ND
2022-05-09AF95972ND
2022-08-10AG08518ND
2022-11-14AG18676ND
2023-02-22AG29904ND
2023-05-15AG404352.70 ppb
2023-07-17AG48736ND
2023-10-09AG58868ND