Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Castle Mountain Creeks Owners Association

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2019-01-07V1900713ND
2020-02-11V2006067ND
2020-05-13V2021731ND
2020-08-24V2041261ND
2020-12-08V2061672ND
2021-01-08V2101074ND
2021-04-15V2117132ND
2021-07-15V2135856ND
2021-10-26V2157582ND
2022-03-07V2210666ND
2022-04-06V2216003ND
2022-09-15V2246108ND
2022-12-22V2262581ND
2023-10-19V2322779-01ND