trans-1,2-Dichloroethylene

Aqua Pennsylvania Main System

1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.

MORE ABOUT THIS CONTAMINANT

182

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	33	ND
2015	ND	37	ND
2016	ND	35	ND
2017	ND	31	ND
2018	ND	21	ND
2019	ND	25	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 60 ppb

The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for trans-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-01-06	AE19666	ND
2014-01-08	AE19654	ND
2014-01-08	AE19653	ND
2014-01-09	AE19808	ND
2014-01-09	AE19814	ND
2014-02-05	AE22406	ND
2014-02-06	AE22395	ND
2014-02-06	AE22429	ND
2014-02-19	AE24127	ND
2014-02-19	AE24128	ND
2014-02-19	AE24152	ND
2014-02-26	AE23735	ND
2014-04-14	AE29526	ND
2014-04-15	AE29528	ND
2014-04-15	AE29507	ND
2014-04-23	AE29939	ND
2014-04-23	AE29914	ND
2014-04-23	AE29839	ND
2014-04-23	AE29840	ND
2014-04-23	AE29916	ND
2014-04-24	AE29947	ND
2014-04-24	AE29952	ND
2014-07-21	AE41025	ND
2014-07-23	AE41635	ND
2014-07-23	AE40895	ND
2014-07-24	AE40881	ND
2014-07-24	AE40886	ND
2014-10-22	AE53545	ND
2014-10-22	AE53537	ND
2014-10-23	AE53645	ND
2014-10-23	AE53646	ND
2014-12-11	AE59777	ND
2014-12-29	AE61209	ND
2015-01-05	12290036	ND
2015-01-07	12289941	ND
2015-01-07	12290050	ND
2015-01-07	12290070	ND
2015-01-07	12290092	ND
2015-01-08	12289965	ND
2015-01-08	12289975	ND
2015-01-22	12289920	ND
2015-01-23	12290016	ND
2015-02-03	12405397	ND
2015-02-03	12405523	ND
2015-02-04	12405355	ND
2015-02-04	12405376	ND
2015-02-04	12405418	ND
2015-02-04	12405439	ND
2015-02-04	12405460	ND
2015-02-04	12405481	ND
2015-02-04	12405502	ND
2015-04-06	12636856	ND
2015-04-22	12636877	ND
2015-04-23	12636814	ND
2015-04-29	12636835	ND
2015-06-03	12885163	ND
2015-06-04	12885142	ND
2015-07-20	13016807	ND
2015-07-22	13016573	ND
2015-07-22	13016594	ND
2015-07-23	13016531	ND
2015-07-23	13016552	ND
2015-08-05	13138445	ND
2015-09-30	13267560	ND
2015-10-21	13392021	ND
2015-10-22	13391958	ND
2015-10-22	13391979	ND
2015-10-22	13392000	ND
2015-11-02	13516759	ND
2015-11-23	13517514	ND
2016-01-06	13756198	ND
2016-01-06	13756219	ND
2016-01-06	13756303	ND
2016-01-11	13756156	ND
2016-01-20	13756135	ND
2016-01-20	13756177	ND
2016-01-21	13756072	ND
2016-01-21	13756093	ND
2016-01-21	13756114	ND
2016-01-28	13756240	ND
2016-01-28	13756261	ND
2016-01-28	13756282	ND
2016-02-05	13872911	ND
2016-02-10	13872932	ND
2016-03-03	13989325	ND
2016-03-15	13989367	ND
2016-03-17	13989346	ND
2016-03-18	13989388	ND
2016-04-11	14107127	ND
2016-04-11	14107148	ND
2016-04-11	14107169	ND
2016-04-11	14107211	ND
2016-04-11	14107232	ND
2016-04-14	14107190	ND
2016-07-29	14573688	ND
2016-08-02	14739178	ND
2016-08-04	14739095	ND
2016-08-04	14739134	ND
2016-08-04	14739155	ND
2016-10-24	15079386	ND
2016-10-24	15079407	ND
2016-10-24	15079428	ND
2016-11-07	15229342	ND
2016-11-21	15229363	ND
2016-12-01	15229907	ND
2017-01-03	15521170	ND
2017-01-16	15521212	ND
2017-01-18	15521107	ND
2017-01-18	15521128	ND
2017-01-18	15521191	ND
2017-01-24	15521149	ND
2017-03-28	15800259	ND
2017-03-29	15800280	ND
2017-04-03	15942277	ND
2017-04-12	15942319	ND
2017-04-17	15942214	ND
2017-04-17	15942235	ND
2017-04-19	15942256	ND
2017-04-19	15942298	ND
2017-06-19	16262179	ND
2017-06-20	16262200	ND
2017-06-20	16262221	ND
2017-06-21	16262242	ND
2017-08-07	16571177	ND
2017-09-15	16730769	ND
2017-09-18	16730706	ND
2017-09-18	16731940	ND
2017-09-19	16730727	ND
2017-09-19	16730748	ND
2017-09-19	16731856	ND
2017-09-20	16731877	ND
2017-09-20	16731898	ND
2017-09-20	16731919	ND
2017-09-27	16883580	ND
2017-12-20	17165326	ND
2017-12-21	17165335	ND
2018-01-17	AF74387	ND
2018-01-29	AF74797	ND
2018-01-29	AF74445	ND
2018-01-29	AF74447	ND
2018-01-29	AF74446	ND
2018-01-29	AF74448	ND
2018-01-31	AF74434	ND
2018-01-31	AF74435	ND
2018-01-31	AF74433	ND
2018-01-31	AF74431	ND
2018-01-31	AF74442	ND
2018-01-31	AF74441	ND
2018-02-22	AF74432	ND
2018-02-26	AF77278	ND
2018-02-27	AF77311	ND
2018-02-27	AF76921	ND
2018-02-28	AF77455	ND
2018-02-28	AF77456	ND
2018-02-28	AF77467	ND
2018-03-26	AF79915	ND
2018-11-16	AG01115	ND
2019-01-28	AG07059	ND
2019-01-29	AG07266	ND
2019-03-04	AG10320	ND
2019-03-04	AG10261	ND
2019-03-06	AG10532	ND
2019-03-06	AG10533	ND
2019-03-06	AG10552	ND
2019-03-11	AG10450	ND
2019-03-13	AG10482	ND
2019-03-19	AG10263	ND
2019-03-19	AG10265	ND
2019-03-19	AG10264	ND
2019-03-26	AG12576	ND
2019-04-08	AG13312	ND
2019-04-08	AG13600	ND
2019-04-10	AG12918	ND
2019-04-24	AG14544	ND
2019-04-24	AG14546	ND
2019-05-06	AG16471	ND
2019-05-07	AG16502	ND
2019-05-30	AG18878	ND
2019-06-19	AG20510	ND
2019-10-16	AG35352	ND
2019-10-18	AG36414	ND
2019-10-23	AG36111	ND