Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

State College Boro Water Auth.

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND50ND
2021ND50ND
2022ND30ND
2023ND80ND

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
2018-02-148B14177-01ND
2019-02-129B12139-01ND
2020-02-1221735599.00ND
2020-02-1221735598.00ND
2020-02-1221735597.00ND
2020-02-1221735596.00ND
2020-02-1221735595.00ND
2021-02-1623953991.00ND
2021-04-0724321965.00ND
2021-08-1625098832.00ND
2021-09-1325291235.00ND
2021-11-1525654881.00ND
2022-02-1526182281.00ND
2022-09-0127520784.00ND
2022-11-1627890861.00ND
2023-02-1428415051.00ND
2023-05-1628981572.00ND
2023-08-1429577811.00ND
2023-11-1330139893.00ND
2023-12-2030314231.00ND
2023-12-2030314294.00ND
2023-12-2030314252.00ND
2023-12-2030314273.00ND