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EWG's Tap Water Database — 2019 UPDATE

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1,1,1-Trichloroethane

North Penn Water Authority

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.

 

306

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND370ND
2013ND520ND
2014ND510ND
2015ND470ND
2016ND600ND
2017ND590ND

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
2012-01-1812011268ND
2012-01-1812011268ND
2012-01-1812011268ND
2012-05-0720121667ND
2012-05-0720121668ND
2012-05-0720121669ND
2012-05-0720121670ND
2012-05-0720121671ND
2012-05-0720121672ND
2012-06-0620122029ND
2012-06-0620122027ND
2012-06-0620122028ND
2012-06-0620122026ND
2012-07-1120122428ND
2012-07-1120122429ND
2012-08-0120122665ND
2012-08-0120122660ND
2012-08-0120122661ND
2012-08-0120122662ND
2012-08-0120122664ND
2012-08-0120122663ND
2012-09-1920123305ND
2012-09-1920123302ND
2012-09-1920123303ND
2012-09-1920123306ND
2012-09-1920123304ND
2012-10-1720123691ND
2012-10-1720123692ND
2012-10-1720123693ND
2012-11-2620124016ND
2012-11-2620124017ND
2012-11-2620124018ND
2012-11-2620124019ND
2012-12-1220124345ND
2012-12-1220124342ND
2012-12-1220124343ND
2012-12-1220124344ND
2013-01-1620130197ND
2013-01-1620130198ND
2013-01-1620130199ND
2013-02-0620130465ND
2013-02-0620130466ND
2013-02-0620130467ND
2013-02-0620130468ND
2013-04-1720131328ND
2013-04-1720131323ND
2013-04-1720131324ND
2013-04-1720131326ND
2013-04-1720131325ND
2013-04-1720131327ND
2013-05-1520131666ND
2013-05-1520131667ND
2013-05-1520131668ND
2013-05-1520131669ND
2013-05-1520131670ND
2013-05-1520131671ND
2013-06-0520131984ND
2013-06-0520131979ND
2013-06-0520131980ND
2013-06-0520131982ND
2013-06-0520131983ND
2013-06-0520131981ND
2013-07-1020132442ND
2013-07-1020132443ND
2013-07-1020132444ND
2013-08-1920133017ND
2013-08-1920133018ND
2013-08-1920133014ND
2013-08-1920133015ND
2013-08-1920133016ND
2013-08-1920133019ND
2013-09-1820133416ND
2013-09-1820133417ND
2013-09-1820133418ND
2013-09-1820133419ND
2013-09-1820133420ND
2013-10-1620133724ND
2013-10-1620133725ND
2013-10-1620133727ND
2013-10-1620133726ND
2013-11-1120134022ND
2013-11-1120134023ND
2013-11-1120134024ND
2013-11-1120134025ND
2013-12-1120134387ND
2013-12-1120134388ND
2013-12-1120134390ND
2013-12-1120134391ND
2013-12-1120134389ND
2014-01-2020140222ND
2014-01-2020140223ND
2014-01-2020140224ND
2014-01-2020140225ND
2014-02-1220140545ND
2014-02-1220140546ND
2014-02-1220140542ND
2014-02-1220140543ND
2014-02-1220140544ND
2014-02-1220140547ND
2014-03-0520140816ND
2014-03-0520140817ND
2014-03-0520140818ND
2014-03-0520140819ND
2014-03-0520140820ND
2014-04-0220141122ND
2014-04-0220141123ND
2014-04-0220141125ND
2014-04-0220141124ND
2014-05-1920141698ND
2014-05-1920141699ND
2014-05-1920141700ND
2014-05-1920141701ND
2014-06-0420141932ND
2014-06-0420141933ND
2014-06-0420141935ND
2014-06-0420141936ND
2014-06-0420141934ND
2014-07-1620142445ND
2014-07-1620142446ND
2014-07-1620142447ND
2014-08-1820142827ND
2014-08-1820142828ND
2014-08-1820142824ND
2014-08-1820142825ND
2014-08-1820142826ND
2014-08-1820142829ND
2014-09-0820143077ND
2014-09-0820143078ND
2014-09-0820143079ND
2014-09-0820143080ND
2014-09-0820143081ND
2014-11-1014110622-001ND
2014-11-1014110622-002ND
2014-11-1014110622-003ND
2014-11-1014110622-004ND
2014-12-0820144185ND
2014-12-0820144186ND
2014-12-0820144188ND
2014-12-0820144189ND
2014-12-0820144187ND
2015-01-1912287157ND
2015-01-1912287178ND
2015-01-1912287199ND
2015-01-1912287220ND
2015-02-0912402104ND
2015-02-0912402125ND
2015-02-0912402041ND
2015-02-0912402062ND
2015-02-0912402083ND
2015-02-0912402146ND
2015-04-2012633462ND
2015-04-2012633483ND
2015-04-2012633525ND
2015-04-2012633504ND
2015-06-1512882976ND
2015-07-1313013071ND
2015-07-1313013097ND
2015-07-1313013123ND
2015-07-1313013149ND
2015-07-1313013175ND
2015-08-1713135672ND
2015-08-1713135693ND
2015-08-1713135735ND
2015-08-1713135756ND
2015-08-1713135714ND
2015-08-1713135777ND
2015-09-1413264714ND
2015-09-1413264740ND
2015-09-1413264766ND
2015-10-0513389218ND
2015-10-0513389239ND
2015-10-0513389281ND
2015-10-0513389260ND
2015-11-1113514209ND
2015-11-1113514146ND
2015-11-1113514167ND
2015-11-1113514188ND
2015-11-1113514230ND
2015-12-0213633350ND
2015-12-0213633376ND
2015-12-0213633402ND
2015-12-0213633428ND
2015-12-0213633454ND
2015-12-0213633480ND
2015-12-0913633506ND
2015-12-0913633306ND
2015-12-1413633327ND
2016-01-1813753169ND
2016-01-1813753190ND
2016-01-1813753211ND
2016-01-1813753232ND
2016-02-1713870706ND
2016-02-1713870727ND
2016-02-1713870643ND
2016-02-1713870664ND
2016-02-1713870685ND
2016-02-1713870748ND
2016-03-0213986057ND
2016-03-0213986083ND
2016-03-0213986109ND
2016-03-0213986135ND
2016-03-0213986161ND
2016-04-1814102974ND
2016-04-1814102995ND
2016-04-1814103037ND
2016-04-1814103016ND
2016-05-1614250809ND
2016-05-1614250830ND
2016-05-1614250851ND
2016-05-1614250872ND
2016-06-0614405894ND
2016-06-0614405921ND
2016-06-0614405975ND
2016-06-0614406002ND
2016-06-0614405948ND
2016-07-1814569955ND
2016-07-1814569976ND
2016-07-1814569997ND
2016-07-1814570018ND
2016-08-0114735675ND
2016-08-0114735696ND
2016-08-0114735612ND
2016-08-0114735633ND
2016-08-0114735654ND
2016-08-0114735717ND
2016-08-2314907956ND
2016-09-0714908083ND
2016-09-0714908110ND
2016-09-0714908137ND
2016-09-0714908164ND
2016-09-0714908191ND
2016-10-2415075732ND
2016-10-2415075753ND
2016-10-2415075795ND
2016-10-2415075774ND
2016-11-1415226169ND
2016-11-1415226085ND
2016-11-1415226106ND
2016-11-1415226211ND
2016-11-1415226127ND
2016-11-1415226190ND
2016-11-1415226148ND
2016-12-0515372194ND
2016-12-0515372215ND
2016-12-0515372236ND
2016-12-0515372257ND
2016-12-0515372278ND
2017-01-2315517783ND
2017-01-2315517804ND
2017-01-2315517825ND
2017-01-2315517846ND
2017-02-2215655942ND
2017-02-2315656026ND
2017-02-2315656047ND
2017-02-2315655963ND
2017-02-2315655984ND
2017-02-2315656005ND
2017-02-2315656068ND
2017-03-2215796088ND
2017-03-2215796115ND
2017-03-2215796142ND
2017-03-2215796169ND
2017-03-2215796196ND
2017-04-1715937480ND
2017-04-1715937501ND
2017-04-1715937543ND
2017-04-1715937522ND
2017-05-1516094575ND
2017-05-1516094596ND
2017-05-1516094659ND
2017-05-1516094617ND
2017-05-1516094638ND
2017-07-0516413116ND
2017-07-0516413137ND
2017-07-0516413158ND
2017-07-1716413713ND
2017-07-1716413734ND
2017-07-1716413755ND
2017-07-1716413776ND
2017-08-0216566173ND
2017-08-0216566194ND
2017-08-0216566068ND
2017-08-0216566089ND
2017-08-0216566152ND
2017-08-0216566110ND
2017-08-0216566131ND
2017-09-1116726753ND
2017-09-1116726780ND
2017-09-1116726807ND
2017-09-1116726834ND
2017-09-1116726861ND
2017-10-1616880084ND
2017-10-1616880105ND
2017-10-1616880147ND
2017-10-1616880126ND
2017-11-0117023340ND
2017-11-0117023361ND
2017-11-0117023424ND
2017-11-0117023382ND
2017-11-0117023403ND
2017-12-0417161962ND
2017-12-0417161983ND
2017-12-0417162025ND
2017-12-0417162046ND
2017-12-0417162004ND
2017-12-0417162067ND