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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

City of Nampa

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

MORE ABOUT THIS CONTAMINANT

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND130ND
2017ND50ND
2018ND100ND
2019N/A00N/A

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
2016-04-20V1616221ND
2016-07-20V1632285ND
2016-10-07V1646180ND
2016-11-17V1652977ND
2016-11-17V1652982ND
2016-11-17V1652993ND
2016-11-17V1652971ND
2016-11-17V1652973ND
2016-11-17V1652975ND
2016-11-17V1652985ND
2016-11-17V1652987ND
2016-11-17V1652991ND
2016-11-17V1652995ND
2017-01-31V1703805ND
2017-01-31V1703804ND
2017-04-11V1714411ND
2017-08-09V1735777ND
2017-10-18V1748770ND
2018-07-02V1830569ND
2018-10-08V1850109ND
2018-10-08V1850028ND
2018-10-08V1850027ND
2018-10-08V1850025ND
2018-10-08V1850023ND
2018-10-08V1850019ND
2018-10-08V1850015ND
2018-10-08V1850014ND
2018-10-08V1850013ND