Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

1,1,1-Trichloroethane

US Army Fort Irwin

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND70ND
2016N/A00N/A
2017N/A00N/A
2018ND80ND
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-07-094790-009-0830ND
2015-07-014790-001-1530ND
2015-09-014790-002-1930ND
2015-09-164790-003-1740ND
2015-09-174790-009-1930ND
2015-09-234790-012-1700ND
2015-09-304790-013-1520ND
2015-11-114790-012-1600ND
2018-06-124790-016-1105ND
2018-06-144790-017-0939ND
2018-07-104790-001-1045ND
2018-07-104790-002-1021ND
2018-07-104790-003-1400ND
2018-07-104790-009-1145ND
2018-07-104790-013-1235ND
2018-07-234790-012-0845ND