Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Meriden Water Division

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

 

70

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND150ND
2019ND140ND
2020ND110ND
2021ND120ND
2022ND100ND
2023ND80ND

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
2018-01-18BZ74951VOC1ND
2018-05-17CA49083VOC1ND
2018-07-19CA94411ND
2018-07-19CA94412ND
2018-07-19CA94413ND
2018-07-19CA94410ND
2018-07-26CA98719ND
2018-08-09CB08263ND
2018-08-23CB17441ND
2018-09-20CB35508ND
2018-09-20CB35511ND
2018-09-27CB59877ND
2018-10-11CB69872ND
2018-11-14CB97371ND
2018-12-07CC11054ND
2019-02-06CC41805ND
2019-04-25CD01551ND
2019-05-08CD09272ND
2019-06-19CD38010ND
2019-06-19CD38012ND
2019-06-19CD38011ND
2019-06-26CD42474ND
2019-06-26CD42475ND
2019-06-26CD42476ND
2019-07-10CD53533ND
2019-08-07CD80098ND
2019-09-04CD97370ND
2019-10-02CE25548ND
2019-11-06CE55216ND
2020-06-10CG10479ND
2020-06-17CG16086ND
2020-06-17CG16087ND
2020-06-17CG16088ND
2020-07-08CG29532ND
2020-07-29CG43212ND
2020-07-29CG43211ND
2020-08-12CG52353ND
2020-09-30CG88204ND
2020-10-07CG92447ND
2020-11-12CH13760ND
2021-04-26CI15487ND
2021-05-05CI23774ND
2021-06-09CI51091ND
2021-06-09CI51092ND
2021-06-09CI51093ND
2021-06-09CI51094ND
2021-06-09CI51095ND
2021-06-09CI51096ND
2021-06-14CI54537ND
2021-07-28CI83796ND
2021-08-09CI93330ND
2021-08-25CJ13500ND
2022-05-25CL38209ND
2022-06-01CL45770ND
2022-06-01CL45771ND
2022-06-01CL45772ND
2022-06-01CL45773ND
2022-06-01CL45769ND
2022-06-22CL61866ND
2022-06-27CL64555ND
2022-07-27CL90095ND
2022-11-09CM80564ND
2023-01-30CN32219ND
2023-03-08CN55431ND
2023-03-13CN58724ND
2023-03-15CN60227ND
2023-03-15CN60228ND
2023-03-22CN65582ND
2023-07-17CO51914ND
2023-07-28CO61474ND