Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Quincy Water Department City Of

1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.

 

13

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
2019ND10ND
2020N/A00N/A
2021ND20ND
2022ND70ND
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppb

The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2019-10-02ND
2021-06-164132530ND
2021-06-164131878ND
2022-03-044258466ND
2022-03-224258506ND
2022-08-164338187ND
2022-08-164338185ND
2022-09-134344891ND
2022-10-064356345ND
2022-10-064356344ND
2023-03-094427806ND
2023-09-264526082ND
2023-10-034526155ND