Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Hoschton Water System

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
20203.58 ppb442.80 ppb - 4.40 ppb
20211.48 ppb64ND - 2.90 ppb
20221.25 ppb21ND - 2.50 ppb
20230.550 ppb21ND - 1.10 ppb

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
2020-01-27AK402873.30 ppb
2020-04-27AK450534.40 ppb
2020-07-23AK523782.80 ppb
2020-10-21AK630473.80 ppb
2021-01-28AK684432.40 ppb
2021-05-11AK749492.10 ppb
2021-07-27AK813692.90 ppb
2021-07-27AK81370ND
2021-10-19AK893241.50 ppb
2021-10-19AK89325ND
2022-01-31AK943782.50 ppb
2022-01-31AK94379ND
2023-03-28AL279921.10 ppb
2023-03-28AL27993ND