Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Norphlet Waterworks

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

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND30ND
2020ND10ND
2021ND10ND
2022ND20ND
2023N/A00N/A

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
2018-02-2618060002201ND
2018-04-3018123005501ND
2018-07-1018193006501ND
2018-10-2918305001801ND
2019-02-1919052004301ND
2019-02-1919052004401ND
2019-07-1519198002501ND
2020-07-2020204000301ND
2021-08-1021224007101ND
2022-01-2422027007101ND
2022-08-16O200995-VOC-1ND