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EWG's Tap Water Database — 2019 UPDATE

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1,1,1-Trichloroethane

Montebello Land & Water Company

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.

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND70ND
2013ND70ND
2014ND70ND
2015ND30ND
2016ND60ND
2017ND70ND

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
2012-02-212706-001-1340ND
2012-02-212706-007-1350ND
2012-08-202706-009-1200ND
2012-08-202706-003-1130ND
2012-08-202706-008-1225ND
2012-08-202706-004-1215ND
2012-08-202706-005-1140ND
2013-02-252706-001-1000ND
2013-02-252706-007-1010ND
2013-08-122706-005-1230ND
2013-08-122706-003-1240ND
2013-08-122706-004-1220ND
2013-08-122706-008-1210ND
2013-08-122706-009-1255ND
2014-02-202706-007-1020ND
2014-02-202706-001-0955ND
2014-08-222706-004-1000ND
2014-08-222706-009-1145ND
2014-08-222706-005-1035ND
2014-08-222706-003-1015ND
2014-08-222706-008-1100ND
2015-02-192706-007-1205ND
2015-02-192706-001-1145ND
2015-11-242706-004-0950ND
2016-02-249588-007-1020ND
2016-03-119588-001-1015ND
2016-08-259588-008-0835ND
2016-08-259588-005-0820ND
2016-08-259588-003-0845ND
2016-11-229588-004-0850ND
2017-02-219588-007-0925ND
2017-02-219588-001-0900ND
2017-06-149588-009-1025ND
2017-08-309588-008-0850ND
2017-08-309588-005-0915ND
2017-08-309588-003-0905ND
2017-10-139588-004-0855ND