Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Mill River Water District

NOTE: Mill River Water District purchases water from New Castle/Stanwood WD which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by New Castle/Stanwood WD.

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
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: Mill River Water District purchases water from New Castle/Stanwood WD which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by New Castle/Stanwood WD.

Date Lab ID Result
2018-09-24AU20756-POCSND
2018-09-24AU20755-POCSND
2019-05-317091708-POCS-NCND
2019-11-12AV23851-POCS-NCND
2020-05-0870130549001-POCS-NCND
2020-05-13AW08856-POCSND
2020-10-21AW20411-POCSND
2020-10-21AW20413-POCSND
2020-11-09AW21631-POCS-NCND
2021-05-27AX10204-POCSND
2021-09-20AX19184-NC-POCSND
2021-09-20AX19182-NC-POCSND
2021-10-13AX20798-POCSND
2021-10-14AX20887-POCSND
2022-06-09AY09842-POCSND
2022-10-24AY19130-NC-POCSND
2022-10-24AY19123-NC-POCSND
2022-11-01AY19672-POCSND
2022-11-01AY19670-POCSND
2023-06-20AZ10986-POCSND
2023-10-17AZ19196-POCSND
2023-10-17AZ19198-POCSND
2023-10-19AZ19387-NC-POCSND
2023-10-19AZ19384-NC-POCSND