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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Mercy Water Supply Corporation

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

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
2016ND150ND
2017ND70ND
2018ND40ND
2019ND50ND

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
2014-03-12AC46795ND
2014-03-12AC46785ND
2014-03-12AC46783ND
2015-04-07AC87526ND
2015-04-07AC87520ND
2015-04-07AC87516ND
2016-01-14AD18249ND
2016-01-14AD18245ND
2016-01-14AD18299ND
2016-01-14AD18247ND
2016-01-14AD18293ND
2016-01-14AD18311ND
2016-01-14AD18309ND
2016-04-04AD31693ND
2016-04-04AD31669ND
2016-07-29AD46481ND
2016-07-29AD46459ND
2016-09-24AD51176ND
2016-11-07AD56809ND
2016-11-07AD56879ND
2016-11-07AD56823ND
2017-07-26AD90905ND
2017-07-26AD90855ND
2017-07-26AD90853ND
2017-10-09AD99850ND
2017-10-09AD99854ND
2017-10-09AD99858ND
2017-10-09AD99862ND
2018-04-03AE21053ND
2018-04-03AE21049ND
2018-04-03AE21047ND
2018-04-03AE21051ND
2019-03-28AE60490ND
2019-03-28AE60512ND
2019-03-28AE60492ND
2019-03-28AE60494ND
2019-03-28AE60496ND