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EWG's Tap Water Database — 2021 UPDATE

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1,3-Dichloropropene

Swansea 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.

 

34

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
2019ND50ND

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
2014-03-10ND
2014-03-10ND
2014-03-24ND
2014-10-21ND
2014-10-21ND
2014-10-21ND
2015-01-21ND
2015-01-21ND
2015-10-09ND
2015-10-09ND
2015-10-09ND
2015-10-09ND
2016-01-12ND
2016-03-08ND
2016-10-27ND
2016-10-27ND
2016-10-27ND
2016-10-27ND
2017-03-20ND
2017-03-20ND
2017-10-18ND
2017-10-18ND
2017-10-18ND
2017-11-14ND
2018-01-18ND
2018-03-19ND
2018-12-10ND
2018-12-10ND
2018-12-10ND
2019-03-14ND
2019-03-14ND
2019-12-12ND
2019-12-12ND
2019-12-12ND