Know Your Environment. Protect Your Health.

Monochloroacetic acid

City of Gonzales

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
2018ND80ND
20191.000 ppb82ND - 4.10 ppb
20200.250 ppb81ND - 2.00 ppb
2021ND80ND
2022ND80ND
20230.700 ppb82ND - 2.90 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
2018-02-08AE13001ND
2018-02-08AE12982ND
2018-05-03AE25005ND
2018-05-03AE24994ND
2018-08-16AE37311ND
2018-08-16AE37312ND
2018-12-12AE48631ND
2018-12-12AE48638ND
2019-03-05AE571184.10 ppb
2019-03-05AE57120ND
2019-04-02AE60852ND
2019-04-02AE60854ND
2019-07-12AE743503.90 ppb
2019-07-12AE74333ND
2019-10-14AE86435ND
2019-10-14AE86436ND
2020-01-21AE94303ND
2020-01-21AE94305ND
2020-04-13AF06458ND
2020-04-13AF06459ND
2020-07-07AF18306ND
2020-07-07AF183072.00 ppb
2020-11-13AF34875ND
2020-11-13AF34877ND
2021-01-13AF39102ND
2021-01-13AF39105ND
2021-04-01AF48814ND
2021-04-01AF48815ND
2021-09-02AF68726ND
2021-09-02AF68728ND
2021-11-08AF75976ND
2021-11-08AF75993ND
2022-03-11AF88881ND
2022-03-11AF88882ND
2022-06-22AG01904ND
2022-06-22AG01906ND
2022-09-30AG15662ND
2022-09-30AG15677ND
2022-12-09AG21484ND
2022-12-09AG21485ND
2023-02-27AG30536ND
2023-02-27AG30537ND
2023-06-28AG464312.90 ppb
2023-06-28AG464322.70 ppb
2023-09-11AG55538ND
2023-09-11AG55540ND
2023-11-28AG64587ND
2023-11-28AG64589ND