Know Your Environment. Protect Your Health.

Monochloroacetic acid

Truro Waterworks

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND100ND
20231.15 ppb84ND - 2.70 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
2018-08-07OE695067ND
2019-08-28OE857959ND
2020-08-24OE1196698ND
2021-08-30OE1822919ND
2022-02-08OE2040379ND
2022-02-08OE2040380ND
2022-04-05OE2077189ND
2022-04-05OE2077190ND
2022-05-16OE2100570ND
2022-05-16OE2100571ND
2022-08-04OE2149005ND
2022-08-04OE2149004ND
2022-11-16OE2206903ND
2022-11-16OE2206904ND
2023-02-221GB2096-022.70 ppb
2023-02-221GB2096-012.10 ppb
2023-05-251GE2697-022.10 ppb
2023-05-251GE2697-012.30 ppb
2023-08-241GH2419-01ND
2023-08-241GH2419-02ND
2023-11-061GK1228-01ND
2023-11-161GK1228-02ND