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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Harris County WCID 36

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND90ND
2014ND70ND
2015N/A00N/A
2016N/A00N/A
2017ND60ND
2018N/A00N/A
2019N/A00N/A

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
2013-04-013D02018-01ND
2013-05-063E07011-04ND
2013-05-063E07011-07ND
2013-05-063E07011-01ND
2013-07-083G09010-01ND
2013-10-073J08018-01AND
2013-11-053K06014-07ND
2013-11-053K06014-01ND
2013-11-053K06014-04ND
2014-01-074A08012-01ND
2014-02-05AC41567ND
2014-02-05AC41581ND
2014-02-05AC41585ND
2014-02-05AC41523ND
2014-02-05AC41513ND
2014-02-05AC41527ND
2017-02-14AD70841ND
2017-04-24AD80727ND
2017-04-24AD80759ND
2017-04-24AD80757ND
2017-04-24AD80725ND
2017-04-24AD80723ND