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EWG's Tap Water Database — 2021 UPDATE

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1,3-Dichloropropene

Downey Water Department

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

 

116

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND200ND
2015ND170ND
2016ND180ND
2017ND200ND
2018ND230ND
2019ND180ND

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
2014-10-072706-007-0752ND
2014-10-072706-009-0812ND
2014-10-072706-010-0830ND
2014-10-072706-011-0734ND
2014-10-072706-012-0937ND
2014-10-072706-014-0955ND
2014-10-072706-016-0715ND
2014-10-072706-032-0849ND
2014-10-072706-033-0918ND
2014-10-082706-017-1014ND
2014-10-082706-018-0958ND
2014-10-082706-019-0937ND
2014-10-082706-020-0918ND
2014-10-082706-021-0840ND
2014-10-082706-024-0858ND
2014-10-082706-025-0716ND
2014-10-082706-026-0820ND
2014-10-082706-029-0754ND
2014-10-082706-030-0737ND
2014-10-092706-005-1102ND
2015-08-182706-007-1120ND
2015-08-182706-009-1052ND
2015-08-182706-011-1038ND
2015-08-182706-012-1138ND
2015-08-182706-014-1152ND
2015-08-182706-016-1026ND
2015-08-182706-032-1107ND
2015-08-192706-017-1050ND
2015-08-192706-018-1031ND
2015-08-192706-019-0951ND
2015-08-192706-020-0935ND
2015-08-192706-024-0856ND
2015-08-192706-025-0722ND
2015-08-192706-026-0835ND
2015-08-192706-029-0803ND
2015-08-192706-030-0743ND
2015-12-172706-005-0922ND
2016-04-072706-033-0803ND
2016-08-102706-005-0855ND
2016-08-102706-007-0918ND
2016-08-102706-009-0830ND
2016-08-102706-011-0941ND
2016-08-102706-012-1010ND
2016-08-102706-014-1026ND
2016-08-102706-016-0750ND
2016-08-102706-033-0728ND
2016-08-172706-017-0948ND
2016-08-172706-018-0922ND
2016-08-172706-019-1019ND
2016-08-172706-020-1046ND
2016-08-172706-024-0822ND
2016-08-172706-025-0717ND
2016-08-172706-026-0807ND
2016-08-172706-030-0743ND
2016-08-172706-032-0847ND
2017-01-102706-005-0856ND
2017-01-102706-007-1050ND
2017-01-102706-009-0826ND
2017-01-102706-011-0959ND
2017-01-102706-032-1030ND
2017-01-112706-012-1012ND
2017-01-112706-014-1115ND
2017-01-112706-016-0952ND
2017-01-112706-017-1103ND
2017-01-112706-018-1038ND
2017-01-112706-020-0931ND
2017-01-112706-024-0903ND
2017-01-112706-025-0725ND
2017-01-112706-026-0832ND
2017-01-112706-030-0802ND
2017-02-282706-010-0740ND
2017-02-282706-021-0835ND
2017-04-132706-029-0845ND
2017-12-129588-033-1042ND
2017-12-269588-019-0906ND
2018-02-139588-005-1105ND
2018-02-139588-007-0900ND
2018-02-139588-009-0930ND
2018-02-139588-010-0945ND
2018-02-139588-011-1200ND
2018-02-139588-014-1255ND
2018-02-139588-016-1132ND
2018-02-139588-032-1020ND
2018-02-139588-033-1220ND
2018-02-149588-017-1136ND
2018-02-149588-020-1206ND
2018-02-149588-024-1226ND
2018-02-149588-026-1059ND
2018-02-149588-029-1039ND
2018-02-149588-030-1020ND
2018-02-219588-018-0925ND
2018-02-219588-019-1000ND
2018-02-219588-021-1047ND
2018-03-149588-012-1131ND
2018-03-269588-025-1035ND
2018-05-019588-019-1159ND
2018-10-239588-018-1314ND
2018-11-069588-012-1045ND
2019-01-159588-032-0755ND
2019-01-249588-025-0730ND
2019-01-249588-029-0905ND
2019-01-249588-030-0822ND
2019-01-259588-005-1048ND
2019-01-259588-009-1026ND
2019-01-259588-010-1008ND
2019-01-259588-020-0938ND
2019-01-259588-021-0840ND
2019-01-259588-026-0806ND
2019-01-309588-011-1030ND
2019-01-309588-019-0820ND
2019-01-309588-033-0735ND
2019-01-319588-014-1000ND
2019-01-319588-016-0930ND
2019-01-319588-017-1015ND
2019-01-319588-024-0820ND
2019-09-309588-033-0830ND