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EWG's Tap Water Database — 2021 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.

MORE ABOUT THIS CONTAMINANT

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND50ND
2014ND110ND
2015ND40ND
2016N/A00N/A
2017ND60ND
2018ND40ND
2019ND20ND

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
2013-10-08201310110246AMND
2013-10-08201310110242AMND
2013-10-08201310110244AMND
2013-10-08201310110248AMND
2013-10-08201310110250AMND
2014-01-24201401270007AMND
2014-04-14201404150335AMND
2014-04-14201404150337AMND
2014-04-14201404150333AMND
2014-04-14201404150345AMND
2014-04-15201404160660AMND
2014-07-25201407260066AMND
2014-09-02AC65465ND
2014-09-02AC65451ND
2014-09-02AC65471ND
2014-09-02AC65469ND
2015-07-08AC98747ND
2015-07-08AC98753ND
2015-07-08AC98749ND
2015-07-09AC98996ND
2017-01-05AD63323ND
2017-01-05AD63321ND
2017-01-05AD63305ND
2017-12-04AE06578ND
2017-12-13AE07692ND
2017-12-13AE07674ND
2018-03-15AE18626ND
2018-03-26AE19964ND
2018-05-10AE25967ND
2018-05-10AE25965ND
2019-04-22AE63213ND
2019-04-22AE63205ND