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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Rapides Parish Waterworks District 3

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

MORE ABOUT THIS CONTAMINANT

 

24

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
2014ND20ND
2015ND20ND
2016ND60ND
2017ND100ND
2018ND20ND
2019ND20ND

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
2014-03-10AD89666ND
2014-03-10AD89666ND
2015-07-0835196532003ND
2015-07-0835196532003ND
2016-07-1835255428001ND
2016-07-1835255428001ND
2016-07-1835255428002ND
2016-07-1835255428002ND
2016-07-1935255757003ND
2016-07-1935255757003ND
2017-03-0835299871004ND
2017-03-0835299871005ND
2017-03-0835299871004ND
2017-03-0835299871003ND
2017-03-0835299871005ND
2017-03-0835299871003ND
2017-07-1835324925002ND
2017-07-1835324925002ND
2017-12-1935364700001ND
2017-12-1935364700001ND
2018-03-2235381823001ND
2018-03-2235381823001ND
2019-04-1735463257001ND
2019-04-1735463257001ND