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EWG's Tap Water Database — 2021 UPDATE

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1,3-Dichloropropene

Montecito 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.

 

8

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
2015ND40ND
2016N/A00N/A
2017N/A00N/A
2018ND30ND
2019ND10ND

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
2015-05-115867-001-1203ND
2015-05-115867-003-1141ND
2015-05-115867-005-1128ND
2015-05-115867-040-1110ND
2018-06-255867-001-1005ND
2018-06-255867-003-0950ND
2018-06-255867-005-0925ND
2019-03-015867-040-0830ND