1,2,3-Trichloropropane

Tempe Water Supply Corporation 1

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.

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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	7	ND
2015	ND	6	ND
2016	ND	4	ND
2017	ND	8	ND
2018	ND	4	ND
2019	ND	4	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
2014-01-15	AC39056	ND
2014-01-15	AC39058	ND
2014-01-15	AC39044	ND
2014-01-15	AC39022	ND
2014-01-15	AC38992	ND
2014-01-15	AC38994	ND
2014-01-15	AC39002	ND
2015-02-24	AC81713	ND
2015-02-24	AC81697	ND
2015-02-24	AC81709	ND
2015-02-24	AC81699	ND
2015-09-10	AD06572	ND
2015-12-03	AD15456	ND
2016-02-25	AD25795	ND
2016-02-25	AD25785	ND
2016-02-25	AD25783	ND
2016-02-25	AD25791	ND
2017-02-15	AD70853	ND
2017-02-15	AD70847	ND
2017-02-15	AD70845	ND
2017-06-01	AD86462	ND
2017-06-01	AD86432	ND
2017-06-01	AD86412	ND
2017-06-01	AD86408	ND
2017-06-01	AD86426	ND
2018-02-13	AE13596	ND
2018-02-13	AE13554	ND
2018-02-13	AE13556	ND
2018-02-13	AE13592	ND
2019-02-26	AE55996	ND
2019-02-26	AE55992	ND
2019-02-26	AE56002	ND
2019-02-26	AE56004	ND