Know Your Environment. Protect Your Health.

Monochloroacetic acid

Chatfield Water Supply Corporation

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
20181.05 ppb85ND - 2.20 ppb
2019ND80ND
20200.875 ppb83ND - 4.00 ppb
20210.488 ppb83ND - 1.40 ppb
20221.23 ppb82ND - 7.90 ppb
20231.36 ppb84ND - 4.30 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
2018-02-08Q1805372002ND
2018-02-08Q1805372001ND
2018-04-19Q18161160031.90 ppb
2018-04-19Q18161160022.20 ppb
2018-07-19Q18287950011.000 ppb
2018-07-19Q18287950022.10 ppb
2018-10-25Q18427770011.20 ppb
2018-10-25Q1842777002ND
2019-02-26Q1908363002ND
2019-02-26Q1908363003ND
2019-05-15Q1925370001ND
2019-05-15Q1925370002ND
2019-07-31Q1949400002ND
2019-07-31Q1949400001ND
2019-10-17Q1972993001ND
2019-10-17Q1972993002ND
2020-01-29Q2003554001ND
2020-01-29Q2003554002ND
2020-04-14Q2014702002ND
2020-04-14Q2014702003ND
2020-08-04Q20303680011.000 ppb
2020-08-04Q20303680022.00 ppb
2020-10-20Q20410600014.00 ppb
2020-10-20Q2041060002ND
2021-01-21Q2101526001ND
2021-01-21Q2101526002ND
2021-04-05Q21084620011.30 ppb
2021-04-05Q21084620021.40 ppb
2021-07-14Q21184540011.20 ppb
2021-07-14Q2118454002ND
2021-10-04Q2127189001ND
2021-10-04Q2127189002ND
2022-03-15Q22088990011.90 ppb
2022-03-15Q2208899002ND
2022-05-03Q2213459001ND
2022-05-03Q2213459002ND
2022-08-17Q22243480017.90 ppb
2022-08-17Q2224348002ND
2022-11-09Q2233872002ND
2022-11-09Q2233872003ND
2023-01-26Q23037620014.30 ppb
2023-01-26Q2303762002ND
2023-05-02Q23164820012.30 ppb
2023-05-02Q2316482002ND
2023-07-31Q2330842002ND
2023-07-31Q23308420031.10 ppb
2023-10-04Q23427090013.20 ppb
2023-10-04Q2342709002ND