1,2,3-Trichloropropane

Harris County MUD 165

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

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	ND	4	ND
2015	ND	7	ND
2016	ND	4	ND
2017	ND	5	ND
2018	ND	9	ND
2019	ND	6	ND

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
2014-03-20	AC47821	ND
2014-07-16	AC59847	ND
2014-07-16	AC59843	ND
2014-07-16	AC59855	ND
2015-05-27	AC93425	ND
2015-05-27	AC93397	ND
2015-05-27	AC93395	ND
2015-09-09	AD06255	ND
2015-09-09	AD06257	ND
2015-11-10	AD13188	ND
2015-11-10	AD13186	ND
2016-03-21	AD29723	ND
2016-03-21	AD29673	ND
2016-03-21	AD29633	ND
2016-03-21	AD29639	ND
2017-05-04	AD82785	ND
2017-05-04	AD82817	ND
2017-05-04	AD82827	ND
2017-05-04	AD82787	ND
2017-05-04	AD82793	ND
2018-06-07	AE29049	ND
2018-06-07	AE29019	ND
2018-06-07	AE29017	ND
2018-06-07	AE29021	ND
2018-06-07	AE29023	ND
2018-08-24	AE38550	ND
2018-08-24	AE38544	ND
2018-11-30	AE47634	ND
2018-11-30	AE47612	ND
2019-01-31	AE52445	ND
2019-01-31	AE52493	ND
2019-01-31	AE52491	ND
2019-01-31	AE52443	ND
2019-01-31	AE52449	ND
2019-01-31	AE52451	ND