Know Your Environment. Protect Your Health.

Monochloroacetic acid

Valley Falls, City 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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
20191.20 ppb42ND - 2.50 ppb
20204.10 ppb42ND - 11.0 ppb
20212.20 ppb42ND - 6.20 ppb
20221.23 ppb42ND - 2.70 ppb
20230.500 ppb41ND - 2.00 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
2018-02-19907925ND
2018-05-21973332ND
2018-08-211029095ND
2018-11-191079291ND
2019-02-181122466ND
2019-05-2011577282.30 ppb
2019-08-1912256722.50 ppb
2019-11-191277508ND
2020-02-241329962ND
2020-05-19138321211.0 ppb
2020-08-181497887ND
2020-11-1816650255.40 ppb
2021-03-0117776636.20 ppb
2021-05-241844646ND
2021-08-231925891ND
2021-11-2220327002.60 ppb
2022-02-222198602ND
2022-06-092275010ND
2022-08-2223386482.20 ppb
2022-11-2124012332.70 ppb
2023-02-2024523252.00 ppb
2023-05-222503964ND
2023-08-212560618ND
2023-11-212613687ND