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EWG's Tap Water Database — 2019 UPDATE

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1,2,3-Trichloropropane

City of South Houston

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND50ND
2015ND50ND
2016ND50ND
2017ND100ND

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
2014-04-07AC49480ND
2014-04-07AC49492ND
2014-04-07AC49486ND
2014-04-07AC49482ND
2014-04-07AC49502ND
2015-01-21AC77101ND
2015-01-21AC77095ND
2015-01-21AC77093ND
2015-01-21AC77099ND
2015-01-21AC77109ND
2016-01-14AD18215ND
2016-01-14AD18219ND
2016-01-14AD18221ND
2016-01-14AD18205ND
2016-01-14AD18207ND
2017-01-06AD63659ND
2017-01-06AD63617ND
2017-02-10AD70432ND
2017-03-01AD72763ND
2017-03-01AD72765ND
2017-03-01AD72753ND
2017-03-01AD72835ND
2017-03-01AD72833ND
2017-03-01AD72837ND
2017-03-01AD72785ND