Know Your Environment. Protect Your Health.

Monochloroacetic acid

Harris County Water Control and Improvement District 114

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
20181.03 ppb82ND - 5.30 ppb
20193.31 ppb86ND - 10.5 ppb
20201.20 ppb83ND - 3.70 ppb
20211.34 ppb84ND - 3.20 ppb
20220.263 ppb81ND - 2.10 ppb
20230.288 ppb81ND - 2.30 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
2018-01-09AE08319ND
2018-01-09AE08313ND
2018-04-03AE20969ND
2018-04-03AE20968ND
2018-07-09AE32585ND
2018-07-09AE32596ND
2018-10-08AE427865.30 ppb
2018-10-08AE427902.90 ppb
2019-02-12AE540632.60 ppb
2019-02-12AE540672.10 ppb
2019-05-08AE654145.50 ppb
2019-05-08AE65422ND
2019-07-15AE743883.30 ppb
2019-07-15AE743692.50 ppb
2019-10-14AE86447ND
2019-10-14AE8644910.5 ppb
2020-01-27AE952833.60 ppb
2020-01-27AE952843.70 ppb
2020-04-23AF07986ND
2020-04-23AF07987ND
2020-07-15AF19451ND
2020-07-15AF19454ND
2020-10-15AF30803ND
2020-10-15AF308052.30 ppb
2021-02-01AF41856ND
2021-02-01AF418582.40 ppb
2021-04-15AF503093.20 ppb
2021-04-15AF503153.00 ppb
2021-07-20AF62644ND
2021-07-20AF62646ND
2021-10-19AF739182.10 ppb
2021-10-19AF73922ND
2022-02-10AF84219ND
2022-02-10AF84221ND
2022-04-20AF93862ND
2022-04-20AF938692.10 ppb
2022-08-03AG07596ND
2022-08-03AG07597ND
2022-10-19AG17617ND
2022-10-19AG17618ND
2023-01-31AG26756ND
2023-01-31AG267582.30 ppb
2023-06-06AG43256ND
2023-06-06AG43259ND
2023-08-02AG51037ND
2023-08-02AG51066ND
2023-11-07AG62550ND
2023-11-07AG62565ND