Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Upper Hanover Water Authority

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.

 

50

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND50ND
2020ND90ND
2021ND100ND
2022ND130ND
2023ND70ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-01-308001978-01ND
2018-04-258008140-01ND
2018-07-178017906-01ND
2018-07-258019752-01ND
2018-07-258019752-02ND
2018-10-108028641-01ND
2019-01-238038660-01ND
2019-05-079009685-01ND
2019-08-218038658-01ND
2019-09-249034252-01ND
2019-12-119033962-01ND
2020-03-1821847897.00ND
2020-03-2021847930.00ND
2020-03-2021847929.00ND
2020-04-2822024171.00ND
2020-04-2822024170.00ND
2020-06-2422417305.00ND
2020-07-0122417306.00ND
2020-10-0623183412.00ND
2020-11-2023362969.00ND
2021-03-1624061098.00ND
2021-03-1924061099.00ND
2021-04-2124248446.00ND
2021-04-3024248598.00ND
2021-07-0624829857.00ND
2021-07-0924830010.00ND
2021-10-0525405591.00ND
2021-10-2925405748.00ND
2021-12-2925765026.00ND
2021-12-2925765005.00ND
2022-02-0125943619.00ND
2022-02-0125943618.00ND
2022-02-0125943620.00ND
2022-02-2326118547.00ND
2022-02-2326118548.00ND
2022-05-0526649366.00ND
2022-05-0626649367.00ND
2022-06-0226649544.00ND
2022-06-0326649545.00ND
2022-07-0727037985.00ND
2022-07-0827037986.00ND
2022-12-0127999414.00ND
2022-12-0227999415.00ND
2023-01-0428173530.00ND
2023-04-1028703166.00ND
2023-04-1128703165.00ND
2023-04-1128703164.00ND
2023-07-0329302591.00ND
2023-10-0329700865.00ND
2023-11-2830246502.00ND