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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Ambler Boro Water Dept

Dichloroacetic 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

 

20

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
20180.975 ppb42ND - 2.70 ppb
20190.563 ppb166ND - 2.00 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2018-11-143001047004ND
2018-11-1430010470012.70 ppb
2018-11-143001047002ND
2018-11-1430010470031.20 ppb
2019-02-153017869002ND
2019-02-163017084002ND
2019-02-163017084006ND
2019-02-1630170840041.40 ppb
2019-05-153034672001ND
2019-05-1530346720071.30 ppb
2019-05-153034672003ND
2019-05-1530346720051.40 ppb
2019-08-143052297007ND
2019-08-1430522970012.00 ppb
2019-08-143052297003ND
2019-08-143052297005ND
2019-11-1330702510101.50 ppb
2019-11-133070251007ND
2019-11-133070251004ND
2019-11-1330702510011.40 ppb