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EWG's Tap Water Database — 2019 UPDATE

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Monochloroacetic acid

Attleboro Water Department

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
2012N/A00N/A
2013N/A00N/A
2014N/A00N/A
20150.338 ppb164ND - 2.20 ppb
20160.981 ppb1610ND - 3.30 ppb
20170.756 ppb1611ND - 1.60 ppb

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 Result
2015-02-051.10 ppb
2015-02-05ND
2015-02-05ND
2015-02-05ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-08-06ND
2015-08-06ND
2015-08-06ND
2015-08-06ND
2015-11-051.000 ppb
2015-11-05ND
2015-11-052.20 ppb
2015-11-051.10 ppb
2016-02-111.20 ppb
2016-02-11ND
2016-02-11ND
2016-02-11ND
2016-05-053.30 ppb
2016-05-051.40 ppb
2016-05-051.40 ppb
2016-05-05ND
2016-08-11ND
2016-08-112.00 ppb
2016-08-11ND
2016-08-111.20 ppb
2016-11-101.60 ppb
2016-11-101.10 ppb
2016-11-101.20 ppb
2016-11-101.30 ppb
2017-02-091.60 ppb
2017-02-091.30 ppb
2017-02-091.50 ppb
2017-02-091.60 ppb
2017-05-11ND
2017-05-11ND
2017-05-11ND
2017-05-11ND
2017-08-100.900 ppb
2017-08-100.700 ppb
2017-08-100.600 ppb
2017-08-100.600 ppb
2017-11-09ND
2017-11-091.60 ppb
2017-11-090.600 ppb
2017-11-091.10 ppb