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EWG's Tap Water Database — 2019 UPDATE

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1,2,3-Trichloropropane

San Antonio Water System Northeast

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND60ND
2014ND110ND
2015ND40ND
2016N/A00N/A
2017ND60ND

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
2012-05-211205665008ND
2012-05-211205665012ND
2012-05-211205665010ND
2013-10-08201310110242AMND
2013-10-08201310110244AMND
2013-10-08201310110248AMND
2013-10-08201310110250AMND
2013-10-08201310110246AMND
2013-11-21AC35848ND
2014-01-24201401270007AMND
2014-04-14201404150345AMND
2014-04-14201404150333AMND
2014-04-14201404150337AMND
2014-04-14201404150335AMND
2014-04-15201404160660AMND
2014-07-25201407260066AMND
2014-09-02AC65451ND
2014-09-02AC65471ND
2014-09-02AC65469ND
2014-09-02AC65465ND
2015-07-08AC98753ND
2015-07-08AC98747ND
2015-07-08AC98749ND
2015-07-09AC98996ND
2017-01-05AD63305ND
2017-01-05AD63323ND
2017-01-05AD63321ND
2017-12-04AE06578ND
2017-12-13AE07692ND
2017-12-13AE07674ND