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EWG's Tap Water Database — 2021 UPDATE

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1,3-Dichloropropene

Hemlock Mutual Water Company

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

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 Lab ID Result
2014-09-029588-001-1030ND
2014-09-029588-002-1040ND
2015-09-039588-001-1040ND
2015-09-039588-002-1025ND
2016-09-069588-001-0840ND
2016-09-069588-002-0830ND
2017-09-059588-001-1145ND
2017-09-059588-002-1130ND
2018-09-069588-001-0910ND
2018-09-069588-002-0850ND
2019-09-099588-001-1030ND
2019-09-099588-002-1025ND