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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

City of Mesa

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

 

110

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
2014ND80ND
2015ND210ND
2016ND60ND
2017ND60ND
2018ND330ND
2019ND360ND

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
2014-02-1214020403ND
2014-04-1414040462VND
2014-04-2114040565VND
2014-04-2214040548VND
2014-04-2214040549VND
2014-08-0414080002ND
2014-10-0814100299ND
2014-12-0214120040ND
2015-02-0415020072ND
2015-02-0915020157ND
2015-02-1115020441ND
2015-04-0715040249VND
2015-04-0715040272VND
2015-04-1415040400VND
2015-04-1415040401VND
2015-04-2115040606VND
2015-04-2115040607VND
2015-04-2715040701VND
2015-04-2915040771VND
2015-07-0715070119ND
2015-07-0715070120ND
2015-07-1315070247ND
2015-07-1415070252ND
2015-07-2115070448VND
2015-10-0615100055ND
2015-10-1215100147ND
2015-10-1415100210ND
2015-10-1415100211ND
2015-10-2115100530ND
2016-05-1116050438AND
2016-06-0816060165ND
2016-07-1416070145VND
2016-08-1116080427ND
2016-08-1116080428ND
2016-11-2216110466ND
2017-04-1117040387VOCND
2017-05-2517050671VOCND
2017-07-1017070232VOCND
2017-07-1117070293VOCND
2017-08-2117080520VOCND
2017-10-1217100475ND
2018-02-0818020378ND
2018-04-0218030942 VOCND
2018-04-0418030948ND
2018-04-0918040098 VOCND
2018-04-0918040100 VOCND
2018-04-1018040101 VOCND
2018-04-1618040220ND
2018-04-1618040222 VOCND
2018-04-1718040223 VOCND
2018-04-1718040224 VOCND
2018-04-2418040502 VOCND
2018-04-2418040503 VOCND
2018-04-2418040504 VOCND
2018-04-3018040540 VOCND
2018-05-1018050425 VOCND
2018-06-2018060699ND
2018-08-0718080202 VOCND
2018-08-2818080812ND
2018-10-1118100452ND
2018-10-1518100484ND
2018-10-1518100506ND
2018-10-1618100517ND
2018-10-1618100519ND
2018-10-1718100557ND
2018-10-1818100597ND
2018-10-1818100599ND
2018-10-2218100638ND
2018-10-2218100640ND
2018-10-2318100673ND
2018-10-2418100681ND
2018-10-2418100683ND
2018-10-2918100752ND
2018-11-2618110640ND
2019-01-1519010482ND
2019-02-0519020066ND
2019-03-2719030653ND
2019-03-2719030655ND
2019-03-2719030656ND
2019-04-0219040022ND
2019-04-0219040024ND
2019-04-0819040182ND
2019-04-0919040210ND
2019-04-0919040212ND
2019-04-1019040260ND
2019-04-1119040287ND
2019-04-1519040331ND
2019-04-1519040333ND
2019-04-1619040352ND
2019-04-1619040354ND
2019-04-2219040453ND
2019-04-2419040522ND
2019-04-2519040547ND
2019-08-0119070873ND
2019-08-0119070875ND
2019-08-0519080017ND
2019-08-0519080019ND
2019-08-0819080127ND
2019-08-0819080129ND
2019-08-1219080178ND
2019-08-1319080202ND
2019-08-1419080234ND
2019-08-1519080278ND
2019-08-1519080280ND
2019-08-2019080335ND
2019-08-2119080577ND
2019-08-2619080657ND
2019-09-1919090600ND
2019-10-2919100742ND
2019-11-2119110603ND