Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Altoona 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.

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND50ND
2020ND70ND
2021ND80ND
2022ND60ND
2023ND50ND

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
2018-08-288H28046-01ND
2018-08-288H28044-01ND
2018-08-288H28051-01ND
2018-08-288H28032-01ND
2018-08-288H28031-01ND
2018-08-288H28047-01ND
2019-11-069K07058-01ND
2019-11-069K07058-03ND
2019-11-079K07074-01ND
2019-11-079K07072-01ND
2019-12-059L05126-01ND
2020-02-0621729169.00ND
2020-08-0522869686.00ND
2020-08-0522869685.00ND
2020-08-0522869684.00ND
2020-08-1022869897.00ND
2020-08-1022869898.00ND
2020-08-1022869896.00ND
2021-07-0124897498.00ND
2021-07-0824897519.00ND
2021-08-1025092069.00ND
2021-08-1025092006.00ND
2021-08-1025092068.00ND
2021-08-1025092007.00ND
2021-08-1025092008.00ND
2021-12-1325828695.00ND
2022-02-2426177232.00ND
2022-08-1627309594.00ND
2022-08-1627309670.00ND
2022-08-1627308835.00ND
2022-08-1627309636.00ND
2022-11-1027885517.00ND
2023-07-2629371563.00ND
2023-07-2629371520.00ND
2023-07-2629371476.00ND
2023-07-2629371542.00ND
2023-07-2629371498.00ND