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EWG's Tap Water Database — 2021 UPDATE

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1,3-Dichloropropene

City of San Jose - EVG/EDV/COY

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.

MORE ABOUT THIS CONTAMINANT

 

26

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
2014ND120ND
2015ND20ND
2016ND20ND
2017ND80ND
2018ND10ND
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
2014-01-219590-005-0914ND
2014-01-219590-006-0839ND
2014-02-189588-012-0902ND
2014-03-271610-003-0810ND
2014-03-271610-002-1000ND
2014-03-271610-001-1130ND
2014-03-271610-004-0900ND
2014-04-151610-013-0852ND
2014-04-151610-011-0935ND
2014-06-251610-004-1130ND
2014-06-251610-003-0735ND
2014-08-051610-007-0920ND
2015-06-091610-003-0740ND
2015-09-081610-004-0826ND
2016-06-141610-003-0750ND
2016-09-131610-004-0852ND
2017-01-171610-002-0835ND
2017-01-171610-004-0925ND
2017-01-171610-001-1036ND
2017-01-311610-003-0819ND
2017-05-021610-011-1006ND
2017-05-161610-012-1145ND
2017-09-125867-004-0943ND
2017-09-261610-013-1030ND
2018-05-291610-003-0815ND
2019-05-141610-012-0949ND