1,1,2,2-Tetrachloroethane

City of Loma Linda

1,1,2,2-Tetrachloroethane is an industrial chemical which has been used as a metal degreaser, and in paint, paint removers, mothballs and pesticides. It damages the liver and nervous system, and may cause cancer.

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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
2013	N/A	0	N/A
2014	ND	4	ND
2015	ND	2	ND
2016	ND	8	ND
2017	N/A	0	N/A
2018	ND	7	ND
2019	ND	4	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for 1,1,2,2-tetrachloroethane 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
2014-02-05	3761-024-1020	ND
2014-03-04	3761-018-1430	ND
2014-04-02	3761-032-1015	ND
2014-04-02	3761-030-1440	ND
2015-06-30	3761-032-1050	ND
2015-06-30	3761-030-1025	ND
2016-04-05	3761-014-0940	ND
2016-04-05	3761-017-0645	ND
2016-04-05	3761-030-0710	ND
2016-04-05	3761-031-1020	ND
2016-05-04	3761-014-0750	ND
2016-05-04	3761-031-0720	ND
2016-05-04	3761-017-0710	ND
2016-06-09	3761-032-1030	ND
2018-09-05	3761-031-1335	ND
2018-09-05	3761-018-1405	ND
2018-09-05	3761-017-0830	ND
2018-09-05	3761-014-1315	ND
2018-09-06	3761-030-0900	ND
2018-09-06	3761-032-1230	ND
2018-09-18	3761-024-1040	ND
2019-05-02	3761-033-0730	ND
2019-05-14	3761-014-1340	ND
2019-12-19	3761-030-0845	ND
2019-12-19	3761-032-0910	ND