Know Your Environment. Protect Your Health.

cis-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

EPA Maximum Contaminant
Level (MCL): 70 ppb

The legal limit for cis-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
2020-01-1621502654.00ND
2020-01-1621502633.00ND
2020-01-1621502612.00ND
2020-01-1621502591.00ND
2020-03-1221846177.00ND
2020-03-1221846156.00ND
2020-03-1221846135.00ND
2020-03-1221846114.00ND
2020-03-1221846093.00ND
2020-04-0822021655.00ND
2020-04-0822021613.00ND
2020-04-0822021592.00ND
2020-04-0822021634.00ND
2020-05-2022214497.00ND
2020-05-2022214476.00ND
2020-07-2222607031.00ND
2020-07-2222607010.00ND
2020-07-2222607052.00ND
2020-07-2222606989.00ND
2020-10-2123181838.00ND
2020-10-2123181817.00ND
2020-10-2123181775.00ND
2020-10-2123181796.00ND
2021-01-0623888195.00ND
2021-01-0623888174.00ND
2021-01-0623888132.00ND
2021-01-0623888153.00ND
2021-05-1324438524.00ND
2021-05-1324438503.00ND
2021-05-1324438482.00ND
2021-05-1324438461.00ND
2021-07-0824828060.00ND
2021-07-2124828165.00ND
2021-07-2124828228.00ND
2021-07-2124828207.00ND
2021-07-2124828186.00ND
2021-07-2925022378.00ND
2021-09-2925220223.00ND
2021-10-0725403883.00ND
2021-10-1325403918.00ND
2021-10-2725403928.00ND
2022-01-0526117083.00ND
2022-01-1226117041.00ND
2022-01-1226117062.00ND
2022-02-1026117140.00ND
2022-02-1726117104.00ND
2022-02-2426117117.00ND
2022-04-0626463497.00ND
2022-04-2026463539.00ND
2022-04-2026463560.00ND
2022-04-2026463518.00ND
2022-07-0727037093.00ND
2022-07-1327037072.00ND
2022-07-1327037051.00ND
2022-07-1427037030.00ND
2022-11-0227822984.00ND
2022-11-0927822921.00ND
2022-11-1027822942.00ND
2022-11-1027822963.00ND
2023-01-1828172695.00ND
2023-01-1928172674.00ND
2023-01-2628172716.00ND
2023-01-2628172737.00ND
2023-04-1228702126.00ND
2023-04-2628702168.00ND
2023-04-2628702189.00ND
2023-04-2628702105.00ND
2023-04-2628702147.00ND
2023-07-2729301881.00ND
2023-07-2729301860.00ND
2023-07-2729301902.00ND
2023-10-1929886660.00ND
2023-10-1929886639.00ND
2023-10-1929886618.00ND