Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Rapides Parish Waterworks District 3

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.

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND140ND
2021ND120ND
2022ND10ND
2023ND50ND

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
2018-03-2235381823001ND
2018-03-2235381823001ND
2019-04-1735463257001ND
2019-04-1735463257001ND
2020-01-2135525783003ND
2020-01-2135525783002ND
2020-01-2135525783001ND
2020-03-1135540206001ND
2020-03-1135537099001ND
2020-04-0735542640001ND
2020-04-0735542640002ND
2020-04-2235545475001ND
2020-06-2635559394001ND
2020-06-2635559394002ND
2020-08-2135572727002ND
2020-08-2135572727001ND
2020-11-1735593329002ND
2020-11-1735593329001ND
2021-03-1635619989001ND
2021-03-1635619989002ND
2021-05-0535631376001ND
2021-05-0535631390001ND
2021-05-0535631390002ND
2021-06-0235638318001ND
2021-06-2335643405001ND
2021-07-0135644790001ND
2021-09-0935662178001ND
2021-09-0935662178002ND
2021-10-0535668367001ND
2021-10-0535668367002ND
2022-04-1835712509001ND
2023-01-1835773982001ND
2023-01-1835773982002ND
2023-01-1835773982003ND
2023-04-0335790618001ND
2023-10-2635837466001ND