Know Your Environment. Protect Your Health.

Monochloroacetic acid

Aqua Pa West Chester

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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.419 ppb163ND - 2.70 ppb
20191.01 ppb168ND - 2.90 ppb
20200.838 ppb166ND - 2.70 ppb
20210.0625 ppb161ND - 1.000 ppb
20221.58 ppb1612ND - 3.40 ppb
20230.569 ppb164ND - 2.50 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
2018-01-02AF72398ND
2018-01-02AF72496ND
2018-01-04AF72757ND
2018-01-25AF74758ND
2018-04-03AF79765ND
2018-04-03AF80281ND
2018-04-05AF80583ND
2018-04-05AF80584ND
2018-07-17AF895792.00 ppb
2018-07-17AF89983ND
2018-07-17AF899622.00 ppb
2018-07-31AF911792.70 ppb
2018-10-02AF97091ND
2018-10-02AF97092ND
2018-10-04AF97458ND
2018-10-04AF97457ND
2019-01-02AG05058ND
2019-01-03AG05076ND
2019-01-03AG04817ND
2019-01-03AG04374ND
2019-04-02AG12993ND
2019-04-02AG13001ND
2019-04-02AG11876ND
2019-04-02AG11877ND
2019-07-02AG204222.20 ppb
2019-07-02AG204231.70 ppb
2019-07-02AG223691.50 ppb
2019-07-02AG223771.60 ppb
2019-10-01AG318581.90 ppb
2019-10-01AG331351.90 ppb
2019-10-01AG337952.50 ppb
2019-10-01AG318572.90 ppb
2020-01-07ND
2020-01-07ND
2020-01-07ND
2020-01-07ND
2020-04-07ND
2020-04-07ND
2020-04-07ND
2020-04-07ND
2020-07-071.80 ppb
2020-07-071.80 ppb
2020-07-072.30 ppb
2020-07-07ND
2020-10-06ND
2020-10-062.60 ppb
2020-10-062.20 ppb
2020-10-062.70 ppb
2021-01-051.000 ppb
2021-01-05ND
2021-01-05ND
2021-01-05ND
2021-04-06ND
2021-04-06ND
2021-04-06ND
2021-04-06ND
2021-07-06ND
2021-07-06ND
2021-07-06ND
2021-07-06ND
2021-10-05ND
2021-10-05ND
2021-10-05ND
2021-10-05ND
2022-01-042.20 ppb
2022-01-041.50 ppb
2022-01-041.60 ppb
2022-01-041.50 ppb
2022-04-052.20 ppb
2022-04-051.90 ppb
2022-04-051.30 ppb
2022-04-051.60 ppb
2022-07-06ND
2022-07-063.10 ppb
2022-07-063.20 ppb
2022-07-063.40 ppb
2022-10-04ND
2022-10-041.70 ppb
2022-10-04ND
2022-10-04ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-04-10ND
2023-04-102.20 ppb
2023-04-10ND
2023-04-10ND
2023-07-112.30 ppb
2023-07-112.10 ppb
2023-07-112.50 ppb
2023-07-11ND
2023-10-10ND
2023-10-10ND
2023-10-10ND
2023-10-13ND