trans-1,2-Dichloroethylene

Collegeville Trappe Joint Public Works Department

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

168

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	28	ND
2015	ND	28	ND
2016	ND	28	ND
2017	ND	28	ND
2018	ND	28	ND
2019	ND	28	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
2014-01-20	20140238	ND
2014-01-20	20140239	ND
2014-01-20	20140240	ND
2014-01-20	20140241	ND
2014-01-20	20140242	ND
2014-03-17	20140955	ND
2014-03-17	20140956	ND
2014-04-21	20141346	ND
2014-04-21	20141347	ND
2014-04-21	20141348	ND
2014-04-21	20141349	ND
2014-04-21	20141350	ND
2014-04-21	20141351	ND
2014-04-21	20141352	ND
2014-07-07	14070813-001	ND
2014-07-07	14070813-002	ND
2014-07-07	14070813-003	ND
2014-07-07	14070813-004	ND
2014-08-13	20142789	ND
2014-08-13	20142790	ND
2014-08-13	20142791	ND
2014-11-17	14111750-01	ND
2014-11-17	14111750-02	ND
2014-11-17	14111750-03	ND
2014-11-17	14111750-04	ND
2014-11-17	14111750-05	ND
2014-11-17	14111750-06	ND
2014-12-01	14120200-01	ND
2015-01-19	12285456	ND
2015-01-19	12285477	ND
2015-01-19	12285498	ND
2015-01-19	12285519	ND
2015-01-19	12285540	ND
2015-01-19	12285561	ND
2015-01-19	12285582	ND
2015-04-20	12631594	ND
2015-04-20	12631615	ND
2015-04-20	12631636	ND
2015-04-20	12631657	ND
2015-04-20	12631678	ND
2015-04-20	12631699	ND
2015-04-20	12631720	ND
2015-07-06	13011207	ND
2015-07-06	13011233	ND
2015-07-06	13011259	ND
2015-07-06	13011285	ND
2015-07-06	13011311	ND
2015-07-06	13011337	ND
2015-07-20	13011551	ND
2015-10-19	13387779	ND
2015-10-19	13387800	ND
2015-10-19	13387821	ND
2015-10-19	13387842	ND
2015-10-19	13387863	ND
2015-10-19	13387884	ND
2015-10-19	13387905	ND
2016-01-18	13751350	ND
2016-01-18	13751371	ND
2016-01-18	13751392	ND
2016-01-18	13751413	ND
2016-01-18	13751434	ND
2016-01-18	13751455	ND
2016-02-16	13869079	ND
2016-04-18	14101344	ND
2016-04-18	14101365	ND
2016-04-18	14101386	ND
2016-04-18	14101407	ND
2016-04-18	14101428	ND
2016-04-18	14101449	ND
2016-04-18	14101470	ND
2016-07-18	14568366	ND
2016-07-18	14568387	ND
2016-07-18	14568408	ND
2016-07-18	14568429	ND
2016-07-18	14568450	ND
2016-07-18	14568471	ND
2016-07-18	14568492	ND
2016-10-17	15074114	ND
2016-10-17	15074135	ND
2016-10-17	15074156	ND
2016-10-17	15074177	ND
2016-10-17	15074198	ND
2016-10-17	15074219	ND
2016-10-17	15074240	ND
2017-02-27	15653929	ND
2017-02-27	15653950	ND
2017-02-27	15653971	ND
2017-02-27	15653992	ND
2017-02-27	15654013	ND
2017-03-07	15793996	ND
2017-03-07	15794017	ND
2017-04-17	15935329	ND
2017-04-17	15935350	ND
2017-04-17	15935371	ND
2017-04-17	15935392	ND
2017-04-17	15935413	ND
2017-04-17	15935434	ND
2017-04-17	15935455	ND
2017-07-17	16411669	ND
2017-07-17	16411690	ND
2017-07-17	16411711	ND
2017-07-17	16411732	ND
2017-07-17	16411753	ND
2017-07-17	16411774	ND
2017-07-17	16411795	ND
2017-10-16	16878520	ND
2017-10-16	16878541	ND
2017-10-16	16878562	ND
2017-10-16	16878583	ND
2017-10-16	16878604	ND
2017-10-16	16878625	ND
2017-10-16	16878646	ND
2018-01-22	20180311	ND
2018-01-22	20180312	ND
2018-01-22	20180313	ND
2018-01-22	20180314	ND
2018-01-22	20180315	ND
2018-01-22	20180316	ND
2018-01-22	20180317	ND
2018-04-18	20181575	ND
2018-04-18	20181576	ND
2018-04-18	20181577	ND
2018-04-18	20181578	ND
2018-04-18	20181579	ND
2018-04-18	20181580	ND
2018-04-18	20181581	ND
2018-07-16	20182718	ND
2018-07-16	20182719	ND
2018-07-16	20182720	ND
2018-07-16	20182721	ND
2018-07-16	20182722	ND
2018-07-16	20182723	ND
2018-07-16	20182724	ND
2018-10-15	20183946	ND
2018-10-15	20183947	ND
2018-10-15	20183948	ND
2018-10-15	20183949	ND
2018-10-15	20183950	ND
2018-10-15	20183951	ND
2018-10-15	20183952	ND
2019-01-23	20190306	ND
2019-01-23	20190307	ND
2019-01-23	20190308	ND
2019-01-23	20190309	ND
2019-01-23	20190310	ND
2019-01-23	20190311	ND
2019-01-23	20190312	ND
2019-04-15	20191439	ND
2019-04-15	20191440	ND
2019-04-15	20191441	ND
2019-04-15	20191442	ND
2019-04-15	20191443	ND
2019-04-15	20191444	ND
2019-04-15	20191445	ND
2019-07-15	20192706	ND
2019-07-15	20192707	ND
2019-07-15	20192708	ND
2019-07-15	20192709	ND
2019-07-15	20192710	ND
2019-07-15	20192711	ND
2019-07-15	20192712	ND
2019-10-21	20194150	ND
2019-10-21	20194151	ND
2019-10-21	20194152	ND
2019-10-21	20194153	ND
2019-10-21	20194154	ND
2019-10-21	20194155	ND
2019-10-21	20194156	ND