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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Crescenta Valley CWD

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.

MORE ABOUT THIS CONTAMINANT

 

64

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND110ND
2015ND110ND
2016ND160ND
2017ND130ND
2018ND20ND
2019ND110ND

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
2014-08-055806-013-1156ND
2014-08-055806-012-1245ND
2014-08-055806-001-1130ND
2014-08-055806-011-0950ND
2014-08-055806-010-1340ND
2014-08-055806-009-1030ND
2014-08-055806-002-1056ND
2014-08-055806-007-1030ND
2014-08-055806-006-1320ND
2014-08-055806-005-1135ND
2014-09-165806-008-0908ND
2015-05-055806-012-1318ND
2015-05-055806-008-1243ND
2015-05-055806-013-1255ND
2015-05-055806-010-1319ND
2015-05-055806-011-1101ND
2015-05-055806-009-1028ND
2015-05-055806-007-1128ND
2015-05-055806-006-1302ND
2015-05-055806-005-1215ND
2015-05-055806-002-1157ND
2015-05-055806-001-1120ND
2016-02-115806-027-0940ND
2016-05-035806-027-1215ND
2016-05-035806-013-1240ND
2016-05-035806-011-1150ND
2016-05-035806-010-1301ND
2016-05-035806-001-1048ND
2016-05-035806-009-1101ND
2016-05-035806-002-1225ND
2016-05-035806-005-1210ND
2016-05-035806-006-1323ND
2016-05-035806-008-1300ND
2016-05-035806-007-1110ND
2016-05-045806-027-1302ND
2016-06-075806-012-1110ND
2016-08-025806-027-0858ND
2016-11-085806-027-1120ND
2017-02-215806-007-1030ND
2017-02-215806-001-1125ND
2017-02-215806-002-1125ND
2017-02-215806-005-1100ND
2017-02-215806-006-1308ND
2017-02-215806-027-0914ND
2017-02-215806-011-1145ND
2017-02-215806-009-1013ND
2017-02-215806-010-1250ND
2017-02-215806-013-0941ND
2017-02-215806-012-1245ND
2017-04-245806-006-1333ND
2017-07-265806-008-0800ND
2018-02-065806-010-1248ND
2018-05-015806-008-1130ND
2019-02-125806-012-1225ND
2019-02-125806-011-0841ND
2019-02-125806-027-1205ND
2019-02-125806-007-1005ND
2019-02-125806-005-1015ND
2019-02-125806-008-1150ND
2019-02-125806-010-1215ND
2019-02-125806-002-0950ND
2019-02-125806-009-0854ND
2019-02-125806-001-1021ND
2019-02-125806-013-1130ND