Know Your Environment. Protect Your Health.

Monochloroacetic acid

Tom Green County Fresh Water Supply District 3

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.80 ppb32ND - 9.20 ppb
20192.60 ppb112.60 ppb
2020ND10ND
20210.500 ppb21ND - 1.000 ppb
2022ND20ND
20231.55 ppb221.40 ppb - 1.70 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
2018-02-21Q18072260022.20 ppb
2018-05-10Q1819381010ND
2018-08-09Q18320530019.20 ppb
2019-05-16Q19265160012.60 ppb
2020-05-20Q2020109002ND
2021-05-19Q2113110017ND
2021-05-19Q21131100181.000 ppb
2022-05-19Q2214829009ND
2022-05-19Q2214829010ND
2023-05-18Q23187930051.70 ppb
2023-05-18Q23187930061.40 ppb