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EWG's Tap Water Database — 2019 UPDATE

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1,1,1-Trichloroethane

Philadelphia Water Department

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.

 

78

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND120ND
2013ND120ND
2014ND150ND
2015ND120ND
2016ND120ND
2017ND150ND

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
2012-02-08DW120208-001ND
2012-02-08DW120208-003ND
2012-02-08DW120208-000ND
2012-05-09DW120509-003ND
2012-05-09DW120509-000ND
2012-05-09DW120509-001ND
2012-08-15DW120815-003ND
2012-08-15DW120815-001ND
2012-08-15DW120815-000ND
2012-11-14DW121114-001ND
2012-11-14DW121114-003ND
2012-11-14DW121114-000ND
2013-02-13DW130213-000ND
2013-02-13DW130213-003ND
2013-02-13DW130213-001ND
2013-05-08DW130508-001ND
2013-05-08DW130508-003ND
2013-05-08DW130508-000ND
2013-08-14DW130814-003ND
2013-08-14DW130814-001ND
2013-08-14DW130814-000ND
2013-12-117311719ND
2013-12-117311718ND
2013-12-117311717ND
2014-02-12DW140212-000ND
2014-02-12DW140212-001ND
2014-02-12DW140212-003ND
2014-05-147468948ND
2014-05-147463348ND
2014-05-147463349ND
2014-05-147468949ND
2014-05-147463350ND
2014-05-147468950ND
2014-08-137570046ND
2014-08-137570048ND
2014-08-137570047ND
2014-11-19DW141119-019ND
2014-11-19DW141119-038ND
2014-11-19DW141119-002ND
2015-02-1112406497ND
2015-02-1112406537ND
2015-02-1112406517ND
2015-05-1312754269ND
2015-05-1312754289ND
2015-05-1312754309ND
2015-08-1213140276ND
2015-08-1213140296ND
2015-08-1213140316ND
2015-11-1813518597ND
2015-11-1813518617ND
2015-11-1813518637ND
2016-02-1013874731ND
2016-02-1013874711ND
2016-02-1013874691ND
2016-05-1114257232ND
2016-05-1114257192ND
2016-05-1114257212ND
2016-08-1014741973ND
2016-08-1014742013ND
2016-08-1014741993ND
2016-11-0915231709ND
2016-11-0915231749ND
2016-11-0915231729ND
2017-02-0815661986ND
2017-02-0815662026ND
2017-02-0815662006ND
2017-05-1016100829ND
2017-05-1016101789ND
2017-05-1016101809ND
2017-05-1016100849ND
2017-05-1016101769ND
2017-05-1016100809ND
2017-08-0916572482ND
2017-08-0916572522ND
2017-08-0916572502ND
2017-11-0817029216ND
2017-11-0817029196ND
2017-11-0817029176ND