Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Ponderosa S/d

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND30ND
2021ND40ND
2022ND40ND
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
2018-04-12CB03472-01RE1ND
2019-04-16CC04280-01ND
2020-04-01CD03181-01ND
2020-08-05CD12136-01ND
2020-10-07CD13750-01ND
2021-01-13CD18731-01ND
2021-04-21CE02821-01ND
2021-07-14CE07607-01ND
2021-10-13CE12470-01ND
2022-01-26CE17926-01ND
2022-04-20CF02420-01ND
2022-08-08CF07143-01ND
2022-10-05CF12757-01ND
2023-01-25752-1983-1ND
2023-04-2637729_23-20811ND
2023-08-1537729_23-45203ND
2023-10-1837729_23-59288ND