Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Silverdale Water District 16

1,1,1-Trichloroethane is a solvent and a degreasing agent used for manufacturing metal products and as ingredient in cleaners and aerosols. Exposure to 1,1,1-trichloroethane can harm the nervous system, liver and circulatory system.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019N/A00N/A
2020N/A00N/A
2021ND100ND
2022ND10ND
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 200 ppb

The legal limit for 1,1,1-trichloroethane, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-09-04ND
2021-06-224142809ND
2021-06-224149408ND
2021-06-234142807ND
2021-06-234142808ND
2021-06-234142810ND
2021-06-234142806ND
2021-09-154178921ND
2021-09-154178922ND
2021-09-204178920ND
2021-12-064213471ND
2022-07-254419133ND