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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

City of Alamo Heights

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

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND80ND
2016ND50ND
2017ND100ND
2018ND120ND
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
2014-01-16AC39275ND
2014-01-16AC39279ND
2014-01-16AC39317ND
2014-01-16AC39281ND
2014-01-16AC39321ND
2014-07-25AC61140ND
2015-04-27AC89595ND
2015-04-27AC89587ND
2015-04-27AC89593ND
2015-04-27AC89591ND
2015-04-27AC89585ND
2015-07-27Q1528886001ND
2015-07-27Q1528886005ND
2015-07-27Q1528886003ND
2016-03-15AD28830ND
2016-03-15AD28838ND
2016-03-15AD28804ND
2016-03-15AD28810ND
2016-03-15AD28808ND
2017-02-14AD70662ND
2017-02-14AD70654ND
2017-02-14AD70660ND
2017-02-14AD70658ND
2017-04-10AD79256ND
2017-04-10AD79192ND
2017-04-10AD79188ND
2017-04-10AD79204ND
2017-04-10AD79194ND
2017-04-10AD79190ND
2018-01-10AE08665ND
2018-01-10AE08659ND
2018-01-10AE08663ND
2018-01-10AE08653ND
2018-01-10AE08651ND
2018-01-10AE08721ND
2018-04-09AE21742ND
2018-04-09AE21698ND
2018-08-03AE35888ND
2018-08-03AE35854ND
2018-10-12AE43488ND
2018-10-12AE43450ND
2019-03-01AE56929ND
2019-03-27AE60220ND
2019-03-27AE60232ND
2019-03-27AE60222ND
2019-03-27AE60258ND