Know Your Environment. Protect Your Health.

Monochloroacetic acid

Hampton Shaler Water Authority

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.

 

168

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.260 ppb81ND - 2.08 ppb
20190.371 ppb323ND - 5.60 ppb
2020ND320ND
20210.0875 ppb321ND - 2.80 ppb
20220.752 ppb327ND - 4.18 ppb
20231.69 ppb3216ND - 4.68 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
2018-11-0718K0954-012.08 ppb
2018-11-0718K0954-02ND
2018-11-0718K0954-03ND
2018-11-0718K0954-04ND
2018-11-0718K0954-05ND
2018-11-0718K0954-06ND
2018-11-0718K0954-07ND
2018-11-0718K0954-08ND
2019-02-0819B0573-01ND
2019-02-0819B0573-02ND
2019-02-0819B0573-03ND
2019-02-0819B0573-04ND
2019-02-0819B0573-05ND
2019-02-0819B0573-06ND
2019-02-0819B0573-07ND
2019-02-0819B0573-08ND
2019-05-0719E0151-01ND
2019-05-0719E0151-02ND
2019-05-0719E0151-03ND
2019-05-0719E0151-04ND
2019-05-0719E0151-05ND
2019-05-0719E0151-06ND
2019-05-0719E0151-07ND
2019-05-0719E0151-08ND
2019-08-0719H0175-01ND
2019-08-0719H0175-025.60 ppb
2019-08-0719H0175-03ND
2019-08-0719H0175-04ND
2019-08-0719H0175-05ND
2019-08-0719H0175-06ND
2019-08-0719H0175-07ND
2019-08-0719H0175-08ND
2019-11-1219K0166-01ND
2019-11-1219K0166-02ND
2019-11-1219K0166-033.97 ppb
2019-11-1219K0166-04ND
2019-11-1219K0166-05ND
2019-11-1219K0166-06ND
2019-11-1219K0166-072.29 ppb
2019-11-1219K0166-08ND
2020-02-10ND
2020-02-10ND
2020-02-10ND
2020-02-10ND
2020-02-10ND
2020-02-10ND
2020-02-10ND
2020-02-10ND
2020-05-07ND
2020-05-07ND
2020-05-07ND
2020-05-07ND
2020-05-07ND
2020-05-07ND
2020-05-07ND
2020-05-07ND
2020-08-10ND
2020-08-10ND
2020-08-10ND
2020-08-10ND
2020-08-10ND
2020-08-10ND
2020-08-10ND
2020-08-10ND
2020-11-10ND
2020-11-10ND
2020-11-10ND
2020-11-10ND
2020-11-10ND
2020-11-10ND
2020-11-10ND
2020-11-10ND
2021-02-10ND
2021-02-10ND
2021-02-10ND
2021-02-10ND
2021-02-10ND
2021-02-10ND
2021-02-10ND
2021-02-10ND
2021-05-10ND
2021-05-10ND
2021-05-102.80 ppb
2021-05-10ND
2021-05-10ND
2021-05-10ND
2021-05-10ND
2021-05-10ND
2021-08-10ND
2021-08-10ND
2021-08-10ND
2021-08-10ND
2021-08-10ND
2021-08-10ND
2021-08-10ND
2021-08-10ND
2021-11-10ND
2021-11-10ND
2021-11-10ND
2021-11-10ND
2021-11-10ND
2021-11-10ND
2021-11-10ND
2021-11-10ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-05-11ND
2022-05-11ND
2022-05-11ND
2022-05-11ND
2022-05-11ND
2022-05-11ND
2022-05-11ND
2022-05-11ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-11-09ND
2022-11-092.15 ppb
2022-11-094.18 ppb
2022-11-093.42 ppb
2022-11-093.93 ppb
2022-11-092.92 ppb
2022-11-093.44 ppb
2022-11-094.03 ppb
2023-02-08ND
2023-02-08ND
2023-02-08ND
2023-02-08ND
2023-02-08ND
2023-02-08ND
2023-02-08ND
2023-02-08ND
2023-05-11ND
2023-05-11ND
2023-05-11ND
2023-05-11ND
2023-05-11ND
2023-05-11ND
2023-05-11ND
2023-05-11ND
2023-08-093.99 ppb
2023-08-094.68 ppb
2023-08-093.76 ppb
2023-08-092.12 ppb
2023-08-092.54 ppb
2023-08-094.11 ppb
2023-08-093.63 ppb
2023-08-094.24 ppb
2023-11-082.74 ppb
2023-11-083.29 ppb
2023-11-082.46 ppb
2023-11-082.95 ppb
2023-11-083.35 ppb
2023-11-083.91 ppb
2023-11-083.30 ppb
2023-11-083.13 ppb