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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Bastrop 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.

MORE ABOUT THIS CONTAMINANT

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND100ND
2015ND40ND
2016ND40ND
2017ND40ND
2018ND40ND
2019ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against system toxicity.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-182976240ND
2014-02-182976238ND
2014-02-182976239ND
2014-02-182976240ND
2014-02-182976241ND
2014-02-182976239ND
2014-02-182976238ND
2014-02-182976241ND
2014-08-113080367ND
2014-08-113080367ND
2015-02-043182215ND
2015-02-043182215ND
2015-08-261422219ND
2015-08-261422219ND
2016-02-101466306ND
2016-02-101466306ND
2016-08-181517309ND
2016-08-181517309ND
2017-02-0335293411019ND
2017-02-0335293411019ND
2017-08-0335328348001ND
2017-08-0335328348001ND
2018-02-1235373921001ND
2018-02-1235373921001ND
2018-08-0635409589001ND
2018-08-0635409589001ND
2019-02-0435446798001ND
2019-02-0435446798001ND
2019-08-0135487135001ND
2019-08-0135487135001ND