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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

City of Conroe

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

 

110

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND250ND
2015ND100ND
2016ND130ND
2017ND210ND
2018ND260ND
2019ND150ND

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
2014-04-09AC49943ND
2014-04-09AC49941ND
2014-04-09AC49939ND
2014-04-09AC49949ND
2014-04-09AC49959ND
2014-04-09AC49983ND
2014-04-09AC49979ND
2014-04-09AC49975ND
2014-04-09AC49955ND
2014-04-09AC49971ND
2014-04-09AC49965ND
2014-04-09AC49981ND
2014-05-28AC55353ND
2014-05-28AC55337ND
2014-05-29AC55490ND
2014-05-29AC55486ND
2014-11-18Q1456289025ND
2014-11-18Q1456289021ND
2014-11-18Q1456289033ND
2014-11-18Q1456289029ND
2014-11-18Q1456740005ND
2014-11-18Q1456289005ND
2014-11-18Q1456289017ND
2014-11-18Q1456289013ND
2014-11-19Q1456740001ND
2015-01-21AC77053ND
2015-01-21AC77055ND
2015-01-21AC77049ND
2015-01-21AC77045ND
2015-01-21AC77051ND
2015-01-21AC77061ND
2015-01-21AC77057ND
2015-01-21AC77091ND
2015-01-21AC77047ND
2015-01-21AC77059ND
2016-01-11AD17316ND
2016-01-11AD17332ND
2016-01-11AD17346ND
2016-01-11AD17350ND
2016-01-11AD17314ND
2016-01-11AD17330ND
2016-01-11AD17312ND
2016-01-11AD17342ND
2016-01-11AD17318ND
2016-01-11AD17324ND
2016-01-11AD17392ND
2016-01-11AD17388ND
2016-01-11AD17396ND
2017-01-09AD63589ND
2017-01-09AD63611ND
2017-01-09AD63583ND
2017-01-09AD63645ND
2017-01-09AD63643ND
2017-01-09AD63683ND
2017-04-11AD79238ND
2017-04-11AD79240ND
2017-04-11AD79236ND
2017-04-11AD79260ND
2017-04-11AD79258ND
2017-05-18AD84889ND
2017-05-18AD84883ND
2017-05-18AD84881ND
2017-05-18AD84891ND
2017-05-18AD84887ND
2017-05-18AD84885ND
2017-05-18AD84921ND
2017-05-18AD84917ND
2017-05-18AD84919ND
2017-05-18AD84923ND
2018-01-10AE08677ND
2018-01-10AE08675ND
2018-01-10AE08633ND
2018-01-10AE08635ND
2018-01-10AE08669ND
2018-01-10AE08679ND
2018-01-10AE08671ND
2018-01-10AE08673ND
2018-01-10AE08691ND
2018-01-10AE08681ND
2018-03-08AE17549ND
2018-03-08AE17593ND
2018-03-08AE17633ND
2018-03-08AE17635ND
2018-05-08AE25595ND
2018-05-08AE25593ND
2018-05-08AE25609ND
2018-05-08AE25613ND
2018-07-02AE32255ND
2018-07-02AE32217ND
2018-07-02AE32289ND
2018-07-02AE32277ND
2018-10-01AE42245ND
2018-10-01AE42247ND
2018-10-01AE42273ND
2018-10-01AE42271ND
2019-03-11AE57843ND
2019-03-11AE57851ND
2019-03-11AE57861ND
2019-03-11AE57841ND
2019-03-11AE57839ND
2019-03-11AE57865ND
2019-03-11AE57873ND
2019-03-11AE57875ND
2019-04-08AE61426ND
2019-04-08AE61422ND
2019-04-08AE61424ND
2019-04-08AE61442ND
2019-04-08AE61428ND
2019-04-08AE61464ND
2019-10-15AE86661ND