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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Wahiawa

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

 

24

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.0500 ppb21ND - 0.1000 ppb
20140.0424 ppb73ND - 0.110 ppb
2015N/A00N/A
2016ND20ND
20170.105 ppb64ND - 0.210 ppb
20180.0700 ppb32ND - 0.110 ppb
20190.120 ppb43ND - 0.200 ppb

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
2013-08-13201308150388AM0.1000 ppb
2013-08-19201308210515AMND
2014-02-03201402050209ND
2014-02-05201402070355AM0.0770 ppb
2014-02-05201402070353AMND
2014-02-112014021403140.110 ppb
2014-02-13201402150160ND
2014-07-10C14-07-0102A0.110 ppb
2014-08-04201408060611ND
2016-01-26ND
2016-01-26ND
2017-01-30ND
2017-01-300.110 ppb
2017-03-20ND
2017-03-200.210 ppb
2017-04-110.190 ppb
2017-11-200.120 ppb
2018-01-29201801300812ND
2018-04-182018042005710.1000 ppb
2018-07-112018071402250.110 ppb
2019-01-31201902010243ND
2019-01-312019020102440.110 ppb
2019-05-012019032805050.200 ppb
2019-08-082019052303120.170 ppb