Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

City of Milwaukie

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.

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND90ND
2019ND90ND
2020ND100ND
2021N/A00N/A
2022ND30ND
2023ND40ND

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
2018-05-03812302006-VND
2018-05-03812302008-VND
2018-05-03812302003-VND
2018-08-02821402203-VND
2018-08-02821402206-VND
2018-08-02821402208-VND
2018-11-15831901503-VND
2018-11-15831901506-VND
2018-11-15831901508-VND
2019-02-13904402103-VND
2019-02-13904402106-VND
2019-02-13904402108-VND
2019-05-16913601702-VND
2019-05-16913601705-VND
2019-05-16913601707-VND
2019-12-02933702403-VND
2019-12-02933702401-VND
2019-12-02933702402-VND
2020-03-03006302603-VND
2020-03-03006302601-VND
2020-03-03006302602-VND
2020-05-20014200503-VND
2020-05-20014200502-VND
2020-05-20014200501-VND
2020-09-02024611001-VND
2020-09-23026706402-VND
2020-09-23026706401-VND
2020-10-26030101001-VND
2022-09-302273020-02-VND
2022-09-302273020-01-VND
2022-12-062340023-01-VND
2023-01-313031005-01-VND
2023-05-303150004-01-VND
2023-08-223234010-01-VND
2023-10-033276048-01-VND