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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Aquarion Water - NH

1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.

 

69

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND130ND
2015ND130ND
2016ND130ND
2017ND110ND
2018ND120ND
2019ND70ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 7 ppb

The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-01130049.02ND
2014-07-15133675.01ND
2014-07-15133675.02ND
2014-07-17133762.05ND
2014-07-17133762.04ND
2014-07-17133762.03ND
2014-07-17133762.02ND
2014-07-17133762.01ND
2014-07-21133855.02ND
2014-07-21133855.03ND
2014-08-11134678.01ND
2014-08-11134678.02ND
2014-08-11134678.03ND
2015-04-07142026.02ND
2015-07-14145726.03ND
2015-07-14145726.08ND
2015-07-14145726.07ND
2015-07-14145726.06ND
2015-07-14145726.05ND
2015-07-14145726.04ND
2015-07-14145726.02ND
2015-07-14145726.01ND
2015-07-21145972.02ND
2015-07-21145972.01ND
2015-07-28146236.01ND
2015-07-28146236.02ND
2016-04-05154457.02ND
2016-07-19158472.02ND
2016-07-19158472.01ND
2016-07-20158545.01ND
2016-07-20158545.02ND
2016-07-26158731.04ND
2016-07-26158731.03ND
2016-07-26158731.01ND
2016-07-26158731.02ND
2016-07-27158731.05ND
2016-08-02158986.01ND
2016-08-02158986.02ND
2016-08-03158986.03ND
2017-04-05167241.01ND
2017-07-11170894.01ND
2017-07-11170894.02ND
2017-07-11170894.03ND
2017-07-18171203.04ND
2017-07-18171203.03ND
2017-07-18171203.01ND
2017-07-18171203.02ND
2017-07-19171260.02ND
2017-07-19171260.03ND
2017-07-20171260.01ND
2018-04-10180567.02ND
2018-07-10184074.01ND
2018-07-10184074.07ND
2018-07-10184074.06ND
2018-07-10184074.05ND
2018-07-10184074.04ND
2018-07-10184074.03ND
2018-07-10184074.02ND
2018-07-11184218.01ND
2018-07-11184218.02ND
2018-08-08185187.01ND
2018-08-15185555.01ND
2019-04-02193725.02ND
2019-07-09197747.01ND
2019-07-09197747.02ND
2019-07-09197747.03ND
2019-07-16198020.01ND
2019-08-06198842.01ND
2019-08-06198842.02ND