1,1,2-Trichloroethane

Philadelphia Water Department

1,1,2-Trichloroethane is a volatile neurotoxic solvent used for manufacturing products such as plastic wrap and carpet backing. It causes liver tumors in animal studies. Read More.

The EPA classifies 1,1,2- trichloroethane as a possible human carcinogen. The California public health goal of 0.3 parts per billion, set to protect against cancer, is 16 times lower than the amount allowed by the federal government, which is a Maximum Contaminant Level of 5 parts per billion.

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
2013	N/A	0	N/A
2014	ND	15	ND
2015	ND	12	ND
2016	ND	12	ND
2017	ND	15	ND
2018	ND	15	ND
2019	ND	12	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.3 ppb

The EWG Health Guideline of 0.3 ppb for 1,1,2-trichloroethane 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.

EPA Maximum Contaminant
Level (MCL) 5 ppb

The legal limit for 1,1,2-trichloroethane, established in 1992, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to 1,1,2-trichloroethane exposure.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-02-12	DW140212-000	ND
2014-02-12	DW140212-001	ND
2014-02-12	DW140212-003	ND
2014-05-14	7463348	ND
2014-05-14	7468948	ND
2014-05-14	7463350	ND
2014-05-14	7468950	ND
2014-05-14	7468949	ND
2014-05-14	7463349	ND
2014-08-13	7570046	ND
2014-08-13	7570047	ND
2014-08-13	7570048	ND
2014-11-19	DW141119-002	ND
2014-11-19	DW141119-038	ND
2014-11-19	DW141119-019	ND
2015-02-11	12406541	ND
2015-02-11	12406501	ND
2015-02-11	12406521	ND
2015-05-13	12754293	ND
2015-05-13	12754313	ND
2015-05-13	12754273	ND
2015-08-12	13140300	ND
2015-08-12	13140320	ND
2015-08-12	13140280	ND
2015-11-18	13518621	ND
2015-11-18	13518641	ND
2015-11-18	13518601	ND
2016-02-10	13874735	ND
2016-02-10	13874715	ND
2016-02-10	13874695	ND
2016-05-11	14257196	ND
2016-05-11	14257236	ND
2016-05-11	14257216	ND
2016-08-10	14741977	ND
2016-08-10	14742017	ND
2016-08-10	14741997	ND
2016-11-09	15231753	ND
2016-11-09	15231713	ND
2016-11-09	15231733	ND
2017-02-08	15662030	ND
2017-02-08	15662010	ND
2017-02-08	15661990	ND
2017-05-10	16101793	ND
2017-05-10	16101813	ND
2017-05-10	16100853	ND
2017-05-10	16100813	ND
2017-05-10	16101773	ND
2017-05-10	16100833	ND
2017-08-09	16572506	ND
2017-08-09	16572526	ND
2017-08-09	16572486	ND
2017-11-08	17029200	ND
2017-11-08	17029220	ND
2017-11-08	17029180	ND
2018-02-07	DW180207-019	ND
2018-02-07	DW180207-037	ND
2018-02-07	DW180207-002	ND
2018-05-09	DW180509-019	ND
2018-05-09	DW180509-002	ND
2018-05-09	DW180509-035	ND
2018-08-08	DW180808-002	ND
2018-08-08	8083919-01	ND
2018-08-08	8083919-02	ND
2018-08-08	DW180808-019	ND
2018-08-08	8083919-03	ND
2018-08-08	DW180808-035	ND
2018-11-07	DW181107-002	ND
2018-11-07	DW181107-018	ND
2018-11-08	DW181108-038	ND
2019-02-13	DW190213-034	ND
2019-02-13	DW190213-018	ND
2019-02-13	DW190213-002	ND
2019-05-15	DW190515-035	ND
2019-05-15	DW190515-019	ND
2019-05-15	DW190515-002	ND
2019-08-14	9084421-06	ND
2019-08-14	9084421-07	ND
2019-08-14	9084421-08	ND
2019-11-13	DW191113-019	ND
2019-11-13	DW191113-035	ND
2019-11-13	DW191113-002	ND