Know Your Environment. Protect Your Health.

Monochloroacetic acid

City of River Oaks

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
20182.85 ppb881.20 ppb - 4.30 ppb
20191.56 ppb85ND - 4.60 ppb
20201.58 ppb85ND - 5.20 ppb
20211.19 ppb86ND - 2.30 ppb
20220.363 ppb82ND - 1.80 ppb
20232.93 ppb881.20 ppb - 5.40 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
2018-03-15Q18107540024.30 ppb
2018-03-15Q18107540014.20 ppb
2018-05-22Q18207280021.80 ppb
2018-05-22Q18207280011.90 ppb
2018-07-30Q18299950011.40 ppb
2018-07-30Q18299950021.20 ppb
2018-10-25Q18427210013.90 ppb
2018-10-25Q18427210024.10 ppb
2019-02-06Q19054950011.40 ppb
2019-02-06Q19054950021.30 ppb
2019-04-29Q19169070024.20 ppb
2019-04-29Q19169070104.60 ppb
2019-09-03Q1961526004ND
2019-09-03Q1961526003ND
2019-11-21Q1977738001ND
2019-11-21Q19777380021.000 ppb
2020-02-18Q2006086006ND
2020-02-18Q2006086007ND
2020-04-30Q20167360024.40 ppb
2020-04-30Q20167360035.20 ppb
2020-09-22Q20375390041.000 ppb
2020-09-22Q20375390051.000 ppb
2020-11-23Q2046945001ND
2020-11-23Q20469450021.000 ppb
2021-03-09Q21061200062.30 ppb
2021-03-09Q21061200072.10 ppb
2021-04-28Q21107440011.50 ppb
2021-04-28Q21107440021.50 ppb
2021-08-03Q21201870031.000 ppb
2021-08-03Q21201870041.10 ppb
2021-11-15Q2131785001ND
2021-11-15Q2131785002ND
2022-03-03Q22073630011.10 ppb
2022-03-03Q22073630021.80 ppb
2022-05-05Q2213617001ND
2022-05-05Q2213617002ND
2022-08-01Q2221890001ND
2022-08-01Q2221890002ND
2022-10-13Q2231073001ND
2022-10-13Q2231073002ND
2023-01-09Q23008130014.40 ppb
2023-01-09Q23008130023.90 ppb
2023-04-06Q23128230011.20 ppb
2023-04-06Q23128230021.20 ppb
2023-09-12Q23391170014.40 ppb
2023-09-12Q23391170025.40 ppb
2023-11-02Q23470500011.40 ppb
2023-11-02Q23470500021.50 ppb