Know Your Environment. Protect Your Health.

Monochloroacetic acid

Harris County Municipal Utility District 255

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.538 ppb81ND - 4.30 ppb
20192.30 ppb83ND - 8.10 ppb
2020ND80ND
2021ND80ND
2022ND80ND
20231.28 ppb82ND - 5.30 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
2018-01-22AE09521ND
2018-01-22AE09519ND
2018-04-02AE20807ND
2018-06-05AE28826ND
2018-07-30AE34897ND
2018-07-30AE34899ND
2018-10-18AE439204.30 ppb
2018-10-18AE43921ND
2019-02-22AE55625ND
2019-02-22AE55626ND
2019-04-22AE63158ND
2019-04-22AE63160ND
2019-09-16AE83542ND
2019-09-16AE835112.30 ppb
2019-11-19AE897618.00 ppb
2019-11-19AE897648.10 ppb
2020-02-07AE97565ND
2020-02-07AE97566ND
2020-04-20AF07425ND
2020-04-20AF07426ND
2020-08-19AF24545ND
2020-08-19AF24557ND
2020-11-03AF33016ND
2020-11-03AF33018ND
2021-02-11AF43685ND
2021-02-11AF43686ND
2021-04-23AF51225ND
2021-04-23AF51229ND
2021-07-28AF63731ND
2021-07-28AF63733ND
2021-10-08AF72866ND
2021-10-08AF72868ND
2022-01-24AF81261ND
2022-01-24AF81262ND
2022-05-20AF97946ND
2022-05-20AF97960ND
2022-07-20AG05538ND
2022-07-20AG05539ND
2022-10-20AG17814ND
2022-10-20AG17815ND
2023-02-09AG28314ND
2023-02-09AG28315ND
2023-05-16AG40674ND
2023-05-16AG40675ND
2023-09-20AG570514.90 ppb
2023-09-20AG570525.30 ppb
2023-11-09AG63051ND
2023-11-09AG63052ND