Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Coraopolis Water & Sewer Authority

1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.500 ppb110.500 ppb
20190.600 ppb110.600 ppb
20200.500 ppb32ND - 0.800 ppb
20210.200 ppb31ND - 0.600 ppb
20220.617 ppb330.530 ppb - 0.720 ppb
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 7 ppb

The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-05-148054022-010.500 ppb
2019-05-309055519-010.600 ppb
2020-04-0722115703.000.800 ppb
2020-05-1922308736.000.700 ppb
2020-10-1923269389.00ND
2021-06-2824921595.000.600 ppb
2021-10-0125308355.00ND
2021-10-0125308374.00ND
2022-03-0128679726.000.530 ppb
2022-05-2428429825.000.720 ppb
2022-09-1627539238.000.600 ppb
2023-06-0529204046.00ND