Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Pennsylvania American Water Company Yardley

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
2018ND30ND
2019ND30ND
2020ND70ND
2021ND70ND
2022ND80ND
2023ND70ND

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
2018-04-1139062701ND
2018-08-1440630801ND
2018-08-1440630201ND
2019-04-0443649801ND
2019-08-2245815901ND
2019-08-2245816001ND
2020-01-0621487045.00ND
2020-04-0922005638.00ND
2020-04-0922005617.00ND
2020-07-0922591155.00ND
2020-08-0622780448.00ND
2020-08-0622780469.00ND
2020-10-1223166538.00ND
2021-01-0623695992.00ND
2021-04-0624231002.00ND
2021-04-0624230981.00ND
2021-07-0724812026.00ND
2021-08-0225004510.00ND
2021-08-0225004531.00ND
2021-10-0425387743.00ND
2022-01-0325926351.00ND
2022-03-0926272416.00ND
2022-04-0626447229.00ND
2022-04-0626447236.00ND
2022-07-1227020351.00ND
2022-08-0427216451.00ND
2022-08-0427216414.00ND
2022-10-1327625704.00ND
2023-01-0328156607.00ND
2023-04-1728684446.00ND
2023-04-1728684426.00ND
2023-07-1229285434.00ND
2023-08-0929478502.00ND
2023-08-0929478481.00ND
2023-10-1129870729.00ND