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EWG's Tap Water Database — 2021 UPDATE

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1,3-Dichloropropene

Dedham Westwood Water District

1,3-Dichloropropene is a volatile cancer-causing chemical primarily used as a nematocide to fumigate agricultural soils. It exists in two different forms: cis-1,3-dichloropropene and trans-1,3-dichloropropene.

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND60ND
2016ND60ND
2017ND60ND
2018ND50ND
2019ND60ND

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 1,3-dichloropropene was defined 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 cancer.

ppb = parts per billion

All test results

Date Result
2014-01-07ND
2014-01-07ND
2014-04-08ND
2014-07-22ND
2014-07-22ND
2014-10-22ND
2015-03-11ND
2015-03-11ND
2015-04-07ND
2015-07-28ND
2015-07-29ND
2015-11-17ND
2016-01-05ND
2016-01-05ND
2016-04-05ND
2016-07-12ND
2016-07-12ND
2016-10-04ND
2017-01-04ND
2017-01-04ND
2017-04-04ND
2017-08-04ND
2017-08-04ND
2017-10-19ND
2018-01-24ND
2018-01-24ND
2018-04-02ND
2018-07-11ND
2018-10-26ND
2019-01-30ND
2019-01-30ND
2019-05-16ND
2019-08-28ND
2019-08-28ND
2019-10-23ND