1,2,3-Trichloropropane

Clear Brook City MUD

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	9	ND
2015	ND	10	ND
2016	ND	3	ND
2017	ND	6	ND
2018	ND	2	ND
2019	ND	3	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
2014-01-31	AC41084	ND
2014-01-31	AC41054	ND
2014-01-31	AC41052	ND
2014-01-31	AC41030	ND
2014-05-21	AC54880	ND
2014-11-20	Q1456913001	ND
2014-11-20	Q1456913005	ND
2014-11-20	Q1456913007	ND
2014-11-20	Q1456913003	ND
2015-02-18	AC80976	ND
2015-02-18	AC80994	ND
2015-02-18	AC80996	ND
2015-05-20	Q1518555001	ND
2015-05-20	Q1518555005	ND
2015-05-20	Q1518555007	ND
2015-05-20	Q1518555003	ND
2015-08-24	Q1533066003	ND
2015-09-15	Q1535680001	ND
2015-09-15	Q1535680003	ND
2016-01-22	AD19723	ND
2016-04-06	AD32097	ND
2016-04-06	AD32109	ND
2017-01-06	AD63591	ND
2017-01-06	AD63695	ND
2017-04-10	AD78972	ND
2017-04-10	AD78980	ND
2017-04-10	AD79014	ND
2017-04-10	AD79020	ND
2018-02-23	AE15485	ND
2018-05-24	AE27720	ND
2019-01-29	AE51975	ND
2019-01-29	AE51971	ND
2019-11-19	AE89787	ND