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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Yorba Linda 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.

MORE ABOUT THIS CONTAMINANT

 

131

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
2014ND360ND
2015ND160ND
2016ND180ND
2017ND220ND
2018ND200ND
2019ND190ND

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
2014-01-084417-001-0905ND
2014-01-084417-002-0830ND
2014-01-084417-003-0845ND
2014-01-084417-004-0855ND
2014-01-084417-006-1005ND
2014-01-084417-007-0950ND
2014-01-084417-008-0920ND
2014-01-084417-011-0935ND
2014-01-084417-020-0815ND
2014-01-084417-023-0800ND
2014-04-024417-001-0800ND
2014-04-024417-002-0855ND
2014-04-024417-003-0900ND
2014-04-024417-004-0845ND
2014-04-024417-006-0835ND
2014-04-024417-007-0815ND
2014-04-024417-008-0840ND
2014-04-024417-011-0945ND
2014-04-024417-020-0955ND
2014-07-094417-001-0805ND
2014-07-094417-003-0915ND
2014-07-094417-004-0900ND
2014-07-094417-006-0835ND
2014-07-094417-008-0845ND
2014-07-094417-011-0925ND
2014-07-094417-020-0950ND
2014-08-214417-002-1105ND
2014-09-034417-007-1130ND
2014-10-084417-001-0815ND
2014-10-084417-002-0920ND
2014-10-084417-003-0930ND
2014-10-084417-004-0910ND
2014-10-084417-006-0840ND
2014-10-084417-008-0900ND
2014-10-084417-011-0850ND
2014-10-084417-020-1000ND
2015-01-144417-004-0830ND
2015-01-144417-008-0915ND
2015-02-114417-006-0850ND
2015-02-194417-020-0840ND
2015-02-194417-023-0925ND
2015-03-114417-011-1125ND
2015-03-304417-007-1005ND
2015-04-014417-004-0855ND
2015-04-014417-008-0950ND
2015-07-084417-001-0915ND
2015-07-084417-002-0835ND
2015-07-084417-003-0820ND
2015-07-084417-004-0850ND
2015-07-084417-008-0900ND
2015-10-074417-004-0905ND
2015-10-084417-008-1105ND
2016-01-144417-001-0920ND
2016-01-144417-004-0900ND
2016-01-144417-006-0830ND
2016-01-144417-007-1005ND
2016-01-144417-008-0845ND
2016-01-144417-011-1025ND
2016-01-144417-020-0815ND
2016-01-144417-023-0800ND
2016-04-134417-004-1125ND
2016-04-134417-008-1230ND
2016-06-154417-001-0810ND
2016-06-154417-002-0955ND
2016-06-154417-003-0905ND
2016-07-214417-004-0945ND
2016-07-214417-007-0905ND
2016-07-214417-008-1050ND
2016-11-024417-004-0910ND
2016-11-024417-008-0925ND
2017-01-184417-006-0850ND
2017-01-184417-008-1010ND
2017-01-184417-011-0830ND
2017-01-184417-020-0905ND
2017-01-184417-023-0800ND
2017-03-013761-024-1020ND
2017-04-124417-003-0920ND
2017-04-124417-004-0905ND
2017-04-124417-006-0830ND
2017-04-124417-006-0835ND
2017-05-244417-008-0820ND
2017-06-274417-001-0925ND
2017-06-274417-007-0900ND
2017-07-124417-004-0935ND
2017-07-124417-023-0805ND
2017-07-124417-024-0845ND
2017-07-184417-008-1005ND
2017-07-254417-024-0755ND
2017-10-044417-002-1045ND
2017-10-044417-004-1035ND
2017-10-044417-008-1115ND
2017-10-044417-024-0910ND
2018-01-174417-006-1040ND
2018-01-174417-008-1205ND
2018-01-174417-011-1025ND
2018-01-174417-020-1100ND
2018-01-174417-023-1000ND
2018-01-244417-004-0840ND
2018-01-244417-024-0800ND
2018-04-254417-001-1020ND
2018-04-254417-002-1110ND
2018-04-254417-003-0815ND
2018-04-254417-004-0800ND
2018-04-254417-007-0920ND
2018-04-254417-008-0835ND
2018-04-254417-024-0940ND
2018-07-114417-008-0950ND
2018-07-114417-024-0905ND
2018-09-194417-004-0940ND
2018-10-104417-004-1100ND
2018-10-104417-008-1145ND
2018-10-104417-024-0850ND
2019-03-134417-001-0945ND
2019-03-134417-002-0840ND
2019-03-134417-006-0810ND
2019-03-134417-007-1130ND
2019-03-134417-008-0900ND
2019-03-134417-020-0920ND
2019-03-134417-024-1000ND
2019-03-214417-023-0820ND
2019-03-274417-011-0900ND
2019-04-044417-003-1120ND
2019-04-044417-008-1045ND
2019-04-044417-024-0955ND
2019-05-304417-004-1000ND
2019-08-204417-004-1045ND
2019-08-204417-008-1030ND
2019-08-204417-024-0905ND
2019-10-234417-004-1100ND
2019-10-234417-008-1005ND
2019-10-234417-024-0850ND