Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Rockwood People's Utilities Department

NOTE: Rockwood People's Utilities Department purchases water from Portland Water Bureau which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by Portland Water Bureau.

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND10ND
2020ND20ND
2021ND20ND
2022ND10ND
2023ND20ND

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

NOTE: Rockwood People's Utilities Department purchases water from Portland Water Bureau which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by Portland Water Bureau.

Date Lab ID Result
2018-03-15BC03118-VND
2018-04-03BC04117-VND
2019-04-02BC21049-VND
2019-07-15BC25289-VND
2020-05-12BC38533-VND
2020-08-06BC41702ND
2021-04-06BC53668-VND
2021-08-04BC60213-VND
2022-04-05BC75262-VND
2022-08-03BC85642-VND
2023-04-04BC96020-VND
2023-08-29BD02264-VND