Know Your Environment. Protect Your Health.

Monochloroacetic acid

Zachary Water System

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.

 

128

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND320ND
2019ND320ND
2020ND160ND
2021ND160ND
20220.188 ppb163ND - 1.10 ppb
2023ND160ND

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
2018-02-0135371906001ND
2018-02-0135371906002ND
2018-02-0135371906003ND
2018-02-0135371906004ND
2018-02-0135371906001ND
2018-02-0135371906002ND
2018-02-0135371906003ND
2018-02-0135371906004ND
2018-05-0435390335001ND
2018-05-0435390335002ND
2018-05-0435390335003ND
2018-05-0435390335004ND
2018-05-0435390335001ND
2018-05-0435390335002ND
2018-05-0435390335003ND
2018-05-0435390335004ND
2018-08-1735412007001ND
2018-08-1735412007002ND
2018-08-1735412007003ND
2018-08-1735412007004ND
2018-08-1735412007001ND
2018-08-1735412007002ND
2018-08-1735412007003ND
2018-08-1735412007004ND
2018-11-0235428205001ND
2018-11-0235428205002ND
2018-11-0235428205003ND
2018-11-0235428205004ND
2018-11-0235428205001ND
2018-11-0235428205002ND
2018-11-0235428205003ND
2018-11-0235428205004ND
2019-02-0135445755001ND
2019-02-0135445755002ND
2019-02-0135445755003ND
2019-02-0135445755004ND
2019-02-0135445755001ND
2019-02-0135445755002ND
2019-02-0135445755003ND
2019-02-0135445755004ND
2019-05-0135465408001ND
2019-05-0135465408002ND
2019-05-0135465408003ND
2019-05-0135465408004ND
2019-05-0135465408001ND
2019-05-0135465408002ND
2019-05-0135465408003ND
2019-05-0135465408004ND
2019-08-1935493980001ND
2019-08-1935493980002ND
2019-08-1935493980003ND
2019-08-1935493980004ND
2019-08-1935493980001ND
2019-08-1935493980002ND
2019-08-1935493980003ND
2019-08-1935493980004ND
2019-11-0535510875001ND
2019-11-0535510875002ND
2019-11-0535510875003ND
2019-11-0535510875004ND
2019-11-0535510875001ND
2019-11-0535510875002ND
2019-11-0535510875003ND
2019-11-0535510875004ND
2020-02-0335529349001ND
2020-02-0335529349002ND
2020-02-0335529349003ND
2020-02-0335529349004ND
2020-05-0435548019001ND
2020-05-0435548019002ND
2020-05-0435548019003ND
2020-05-0435548019004ND
2020-08-0335568015001ND
2020-08-0335568015002ND
2020-08-0335568015003ND
2020-08-0335568015004ND
2020-11-0435590528001ND
2020-11-0435590528002ND
2020-11-0435590528003ND
2020-11-0435590528004ND
2021-02-0135610066001ND
2021-02-0135610066002ND
2021-02-0135610066003ND
2021-02-0135610066004ND
2021-05-0335631689001ND
2021-05-0335631689002ND
2021-05-0335631689003ND
2021-05-0335631689004ND
2021-08-0235654306001ND
2021-08-0235654306002ND
2021-08-0235654306003ND
2021-08-0235654306004ND
2021-11-0235676642001ND
2021-11-0235676642002ND
2021-11-0235676642003ND
2021-11-0235676642004ND
2022-02-0235696677001ND
2022-02-0235696677002ND
2022-02-0235696677003ND
2022-02-0235696677004ND
2022-05-02357154310010.980 ppb
2022-05-02357154310020.920 ppb
2022-05-02357154310031.10 ppb
2022-05-0235715431004ND
2022-08-0135736973001ND
2022-08-0135736973002ND
2022-08-0135736973003ND
2022-08-0135736973004ND
2022-11-0135758147001ND
2022-11-0135758147002ND
2022-11-0135758147003ND
2022-11-0135758147004ND
2023-02-0635778173001ND
2023-02-0635778173002ND
2023-02-0635778173003ND
2023-02-0635778173004ND
2023-05-0835798988001ND
2023-05-0835798988002ND
2023-05-0835798988003ND
2023-05-0835798988004ND
2023-08-0135817724001ND
2023-08-0135817724002ND
2023-08-0135817724003ND
2023-08-0135817724004ND
2023-11-0635840532001ND
2023-11-0635840532002ND
2023-11-0635840532003ND
2023-11-0635840532004ND