Know Your Environment. Protect Your Health.

Monochloroacetic acid

Swansea, Town of

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
2018ND80ND
2019ND80ND
2020ND80ND
2021ND80ND
2022ND80ND
2023ND80ND

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
2018-01-302180202-25ND
2018-01-302180202-26ND
2018-05-012180502-20ND
2018-05-012180502-21ND
2018-08-022180803-02ND
2018-08-022180803-03ND
2018-10-292181101-43ND
2018-10-292181101-42ND
2019-02-042190205-23ND
2019-02-042190205-22ND
2019-04-302190501-22ND
2019-04-302190501-23ND
2019-07-312190802-23ND
2019-07-312190802-22ND
2019-11-082191113-31ND
2019-11-082191113-30ND
2020-02-042200205-13ND
2020-02-042200205-12ND
2020-05-052200506-32ND
2020-05-052200506-33ND
2020-08-032200804-13ND
2020-08-032200804-12ND
2020-11-052201106-03ND
2020-11-052201106-02ND
2021-02-022210203-13ND
2021-02-022210203-12ND
2021-05-172210518-12ND
2021-05-172210518-13ND
2021-08-042210805-12ND
2021-08-042210805-13ND
2021-11-022211103-22ND
2021-11-022211103-23ND
2022-02-012220202-12ND
2022-02-012220202-13ND
2022-05-052220506-21ND
2022-05-052220506-12ND
2022-08-012220802-13ND
2022-08-012220802-12ND
2022-11-012221102-29ND
2022-11-012221102-28ND
2023-02-022230203-12ND
2023-02-022230203-13ND
2023-05-022230503-25ND
2023-05-022230503-24ND
2023-08-102230811-18ND
2023-08-102230811-19ND
2023-10-302231031-13ND
2023-10-302231031-12ND