Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Coraopolis Water & Sewer Authority

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.60 ppb112.60 ppb
20193.00 ppb113.00 ppb
20202.77 ppb332.40 ppb - 3.20 ppb
20211.75 ppb441.40 ppb - 2.60 ppb
20221.93 ppb331.60 ppb - 2.10 ppb
20232.10 ppb112.10 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
2018-05-148054022-012.60 ppb
2019-05-309055519-013.00 ppb
2020-04-0722115706.003.20 ppb
2020-05-1922308739.002.40 ppb
2020-10-1923269392.002.70 ppb
2021-06-2824921598.002.60 ppb
2021-10-0125308358.001.40 ppb
2021-10-0125308377.001.40 ppb
2021-12-2225850476.001.60 ppb
2022-03-0126197367.001.60 ppb
2022-05-2426742046.002.10 ppb
2022-09-1627539241.002.10 ppb
2023-06-0529204049.002.10 ppb