Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Horsham Water&sewer 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.

 

95

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND130ND
2020ND230ND
2021ND180ND
2022ND180ND
2023ND150ND

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
2018-01-30AF74813ND
2018-01-30AF74814ND
2018-02-13AF75932ND
2018-03-23AF79016ND
2018-06-22AF86999ND
2018-08-30AF94269ND
2018-10-03AF96985ND
2018-12-27AG04620ND
2019-02-11AG07773ND
2019-02-11AG07771ND
2019-02-11AG07775ND
2019-02-11AG07772ND
2019-02-27AG09179ND
2019-04-11AG13046ND
2019-04-11AG13047ND
2019-05-09AG16016ND
2019-05-09AG16019ND
2019-05-23AG16891ND
2019-08-21AG28299ND
2019-09-18AG31925ND
2019-09-18AG31924ND
2020-01-1621502661.00ND
2020-01-1621502640.00ND
2020-01-1621502619.00ND
2020-01-1621502598.00ND
2020-03-1221846184.00ND
2020-03-1221846163.00ND
2020-03-1221846142.00ND
2020-03-1221846121.00ND
2020-03-1221846100.00ND
2020-04-0822021662.00ND
2020-04-0822021620.00ND
2020-04-0822021599.00ND
2020-04-0822021641.00ND
2020-05-2022214504.00ND
2020-05-2022214483.00ND
2020-07-2222607038.00ND
2020-07-2222607017.00ND
2020-07-2222607059.00ND
2020-07-2222606996.00ND
2020-10-2123181845.00ND
2020-10-2123181824.00ND
2020-10-2123181782.00ND
2020-10-2123181803.00ND
2021-01-0623888202.00ND
2021-01-0623888181.00ND
2021-01-0623888139.00ND
2021-01-0623888160.00ND
2021-05-1324438525.00ND
2021-05-1324438504.00ND
2021-05-1324438483.00ND
2021-05-1324438462.00ND
2021-07-0824828067.00ND
2021-07-2124828172.00ND
2021-07-2124828235.00ND
2021-07-2124828214.00ND
2021-07-2124828193.00ND
2021-07-2925022385.00ND
2021-09-2925220230.00ND
2021-10-0725403890.00ND
2021-10-1325403905.00ND
2021-10-2725403935.00ND
2022-01-0526117090.00ND
2022-01-1226117048.00ND
2022-01-1226117069.00ND
2022-02-1026117147.00ND
2022-02-1726117027.00ND
2022-02-2426117124.00ND
2022-04-0626463504.00ND
2022-04-2026463546.00ND
2022-04-2026463567.00ND
2022-04-2026463525.00ND
2022-07-0727037100.00ND
2022-07-1327037079.00ND
2022-07-1327037058.00ND
2022-07-1427037037.00ND
2022-11-0227822991.00ND
2022-11-0927822928.00ND
2022-11-1027822949.00ND
2022-11-1027822970.00ND
2023-01-1828172702.00ND
2023-01-1928172681.00ND
2023-01-2628172723.00ND
2023-01-2628172744.00ND
2023-04-1228702133.00ND
2023-04-2628702175.00ND
2023-04-2628702196.00ND
2023-04-2628702112.00ND
2023-04-2628702154.00ND
2023-07-2729301888.00ND
2023-07-2729301867.00ND
2023-07-2729301909.00ND
2023-10-1929886667.00ND
2023-10-1929886646.00ND
2023-10-1929886625.00ND