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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Daphne

1,2,3-Trichloropropane is a potent carcinogen that contaminates drinking water in agricultural regions where it was historically used as soil fumigant. Click here to read more about carcinogenic VOCs.

MORE ABOUT THIS CONTAMINANT

 

33

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.0221 ppb146ND - 0.0600 ppb
2014ND20ND
2015N/A00N/A
2016ND50ND
2017ND20ND
2018ND20ND
2019ND80ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.0007 ppb

The EWG Health Guideline of 0.0007 ppb for 1,2,3-trichloropropane 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
2013-02-182782970ND
2013-02-182782979ND
2013-02-182782961ND
2013-02-1827833540.0600 ppb
2013-02-1827829320.0500 ppb
2013-02-192782952ND
2013-02-1927829410.0600 ppb
2013-08-222886201ND
2013-08-222885969ND
2013-08-222886218ND
2013-08-2228860310.0600 ppb
2013-08-2228860200.0400 ppb
2013-08-222885979ND
2013-08-2228859900.0400 ppb
2014-01-13140114012-1ND
2014-01-13140114012-2ND
2016-01-13160114026-2ND
2016-01-13160114026-3ND
2016-01-13160114026-1ND
2016-04-13160414036-1ND
2016-04-13160414036-2ND
2017-01-12170113027-1ND
2017-01-12170113027-2ND
2018-09-2518090667-001AND
2018-11-0518110119-001AND
2019-01-1619010491-003AND
2019-01-1619010491-002AND
2019-01-1619010491-001AND
2019-04-0819040336-001AND
2019-06-1320108286002_IVOCND
2019-06-1320108286001_IVOCND
2019-09-1220121497001_IVOCND
2019-10-1420126106001_IVOCND