Know Your Environment. Protect Your Health.

Monochloroacetic acid

Hico 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.

 

64

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.328 ppb164ND - 1.70 ppb
20190.239 ppb164ND - 0.990 ppb
2020ND80ND
20210.254 ppb82ND - 1.10 ppb
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
2018-01-1135368401001ND
2018-01-1135368401002ND
2018-01-1135368401002ND
2018-01-1135368401001ND
2018-04-1235386292002ND
2018-04-12353862920011.70 ppb
2018-04-1235386292002ND
2018-04-12353862920011.70 ppb
2018-07-06354028080010.920 ppb
2018-07-0635402808002ND
2018-07-06354028080010.920 ppb
2018-07-0635402808002ND
2018-10-0435422539001ND
2018-10-0435422539001ND
2018-10-0435422539002ND
2018-10-0435422539002ND
2019-01-04354402620010.920 ppb
2019-01-0435440262002ND
2019-01-04354402620010.920 ppb
2019-01-0435440262002ND
2019-04-04354597450010.990 ppb
2019-04-0435459745002ND
2019-04-04354597450010.990 ppb
2019-04-0435459745002ND
2019-07-1135481804002ND
2019-07-1135481804001ND
2019-07-1135481804001ND
2019-07-1135481804002ND
2019-10-1035504594001ND
2019-10-1035504594002ND
2019-10-1035504594002ND
2019-10-1035504594001ND
2020-01-1735525181002ND
2020-01-1735525181001ND
2020-04-1635544591001ND
2020-04-1635544591002ND
2020-07-2435566126001ND
2020-07-2435566126002ND
2020-10-1635585705001ND
2020-10-1635585705002ND
2021-01-2135606711001ND
2021-01-2135606711002ND
2021-04-2635629199001ND
2021-04-26356291990020.930 ppb
2021-07-07356465470011.10 ppb
2021-07-0735646547002ND
2021-10-1535672644001ND
2021-10-1535672644002ND
2022-01-0635689122002ND
2022-01-0635689122001ND
2022-04-0735709675002ND
2022-04-0735709675001ND
2022-07-1435732765001ND
2022-07-1435732765002ND
2022-10-1035753738001ND
2022-10-1035753738002ND
2023-01-0335770994001ND
2023-01-0335770994002ND
2023-04-0535790898001ND
2023-04-0535790898002ND
2023-07-1035812717001ND
2023-07-1035812717002ND
2023-10-1235834675001ND
2023-10-1235834675002ND