Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Hinsdale Town Water District

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.40 ppb112.40 ppb
20192.00 ppb112.00 ppb
20201.70 ppb111.70 ppb
20211.20 ppb111.20 ppb
20220.850 ppb110.850 ppb
20231.40 ppb111.40 ppb

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
2018-09-131815875-0012.40 ppb
2019-08-221914132-0012.00 ppb
2020-09-172015370-0011.70 ppb
2021-07-222111795-0011.20 ppb
2022-08-182213025-0010.850 ppb
2023-09-12EHS2300053328-POC1.40 ppb