Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Denair Community Services District

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

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2018-09-07CA5010021_009_009-201809070850ND
2018-09-07CA5010021_010_010-201809070915ND
2020-10-08CA5010021_008_008-202010080951ND
2020-10-08CA5010021_007_007-202010081024ND
2021-09-16CA5010021_010_010-202109161000ND
2021-09-16CA5010021_009_009-202109160925ND
2023-10-10CA5010021_007_007-202310101000ND
2023-10-10CA5010021_008_008-202310101014ND