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EWG's Tap Water Database — 2019 UPDATE

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Trichloroethylene

North Penn Water Authority

Trichloroethylene, an industrial solvent and common groundwater pollutant, damages the immune system, harms the developing fetus and causes cancer. Read More.

Trichloroethylene was once commonly used to remove grease from metal parts, such as steel pipes and engines, and as a solvent in dry cleaning and carpet cleaning products. Drinking trichloroethylene-contaminated drinking water has been linked with birth defects, leukemia, and liver and kidney damage. Trichloroethylene is highly volatile and can enter indoor air through water in pipes. If trichloroethylene is present, people can inhale it while bathing, washing dishes and doing other household activities that involve water.

Click here to read more about carcinogenic VOCs.

 

299

Samples

0

Samples exceeding legal limit (MCL)

19

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.172 ppb378ND - 1.21 ppb
20130.00983 ppb521ND - 0.511 ppb
20140.0402 ppb512ND - 1.20 ppb
2015ND400ND
20160.0468 ppb604ND - 0.881 ppb
20170.0452 ppb594ND - 0.762 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.4 ppb

The EWG Health Guideline of 0.4 ppb for trichloroethylene was defined by the state of Minnesota as health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the developing fetus and damage to the immune system.

EPA Maximum Contaminant
Level (MCL) 5 ppb

The legal limit for trichloroethylene, established in 1987, was based on analytical detection limits at the time that the standard was set. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-1812011268ND
2012-01-1812011268ND
2012-01-1812011268ND
2012-05-0720121667ND
2012-05-07201216680.603 ppb
2012-05-0720121669ND
2012-05-0720121670ND
2012-05-0720121671ND
2012-05-07201216721.21 ppb
2012-06-0620122029ND
2012-06-0620122027ND
2012-06-0620122028ND
2012-06-0620122026ND
2012-07-11201224280.809 ppb
2012-07-1120122429ND
2012-08-0120122665ND
2012-08-0120122660ND
2012-08-01201226610.933 ppb
2012-08-0120122662ND
2012-08-0120122664ND
2012-08-01201226630.958 ppb
2012-09-1920123305ND
2012-09-1920123302ND
2012-09-19201233030.573 ppb
2012-09-1920123306ND
2012-09-1920123304ND
2012-10-1720123691ND
2012-10-17201236920.625 ppb
2012-10-1720123693ND
2012-11-2620124016ND
2012-11-26201240170.641 ppb
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
2013-11-11201340250.511 ppb
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
2014-08-18201428290.849 ppb
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
2014-11-1014110622-0041.20 ppb
2014-12-0820144185ND
2014-12-0820144186ND
2014-12-0820144188ND
2014-12-0820144189ND
2014-12-0820144187ND
2015-01-1912287160ND
2015-01-1912287181ND
2015-01-1912287202ND
2015-01-1912287223ND
2015-02-0912402107ND
2015-02-0912402128ND
2015-02-0912402044ND
2015-02-0912402065ND
2015-02-0912402086ND
2015-04-2012633465ND
2015-04-2012633486ND
2015-04-2012633528ND
2015-04-2012633507ND
2015-07-1313013074ND
2015-07-1313013100ND
2015-07-1313013126ND
2015-07-1313013152ND
2015-07-1313013178ND
2015-08-1713135675ND
2015-08-1713135696ND
2015-08-1713135738ND
2015-08-1713135759ND
2015-08-1713135717ND
2015-09-1413264717ND
2015-09-1413264743ND
2015-09-1413264769ND
2015-10-0513389221ND
2015-10-0513389242ND
2015-10-0513389284ND
2015-10-0513389263ND
2015-11-1113514212ND
2015-11-1113514149ND
2015-11-1113514170ND
2015-11-1113514191ND
2015-11-1113514233ND
2015-12-0213633353ND
2015-12-0213633379ND
2015-12-0213633405ND
2015-12-0213633431ND
2015-12-0213633457ND
2016-01-1813753172ND
2016-01-1813753193ND
2016-01-1813753214ND
2016-01-1813753235ND
2016-02-1713870709ND
2016-02-1713870730ND
2016-02-1713870646ND
2016-02-1713870667ND
2016-02-1713870688ND
2016-02-17138707510.556 ppb
2016-03-0213986060ND
2016-03-0213986086ND
2016-03-0213986112ND
2016-03-0213986138ND
2016-03-0213986164ND
2016-04-1814102977ND
2016-04-1814102998ND
2016-04-1814103040ND
2016-04-1814103019ND
2016-05-1614250812ND
2016-05-1614250833ND
2016-05-1614250854ND
2016-05-16142508750.578 ppb
2016-06-0614405897ND
2016-06-0614405924ND
2016-06-0614405978ND
2016-06-0614406005ND
2016-06-0614405951ND
2016-07-1814569958ND
2016-07-1814569979ND
2016-07-1814570000ND
2016-07-1814570021ND
2016-08-0114735678ND
2016-08-0114735699ND
2016-08-0114735615ND
2016-08-0114735636ND
2016-08-0114735657ND
2016-08-01147357200.791 ppb
2016-08-2314907959ND
2016-09-0714908086ND
2016-09-0714908113ND
2016-09-0714908140ND
2016-09-0714908167ND
2016-09-0714908194ND
2016-10-2415075735ND
2016-10-2415075756ND
2016-10-2415075798ND
2016-10-2415075777ND
2016-11-1415226172ND
2016-11-1415226088ND
2016-11-1415226109ND
2016-11-1415226214ND
2016-11-1415226130ND
2016-11-1415226193ND
2016-11-14152261510.881 ppb
2016-12-0515372197ND
2016-12-0515372218ND
2016-12-0515372239ND
2016-12-0515372260ND
2016-12-0515372281ND
2017-01-2315517786ND
2017-01-2315517807ND
2017-01-2315517828ND
2017-01-2315517849ND
2017-02-2215655945ND
2017-02-2315656029ND
2017-02-2315656050ND
2017-02-2315655966ND
2017-02-2315655987ND
2017-02-2315656008ND
2017-02-23156560710.579 ppb
2017-03-2215796091ND
2017-03-2215796118ND
2017-03-2215796145ND
2017-03-2215796172ND
2017-03-2215796199ND
2017-04-1715937483ND
2017-04-1715937504ND
2017-04-1715937546ND
2017-04-1715937525ND
2017-05-1516094578ND
2017-05-1516094599ND
2017-05-1516094662ND
2017-05-1516094620ND
2017-05-15160946410.588 ppb
2017-07-0516413119ND
2017-07-0516413140ND
2017-07-0516413161ND
2017-07-1716413716ND
2017-07-1716413737ND
2017-07-1716413758ND
2017-07-1716413779ND
2017-08-0216566176ND
2017-08-0216566197ND
2017-08-0216566071ND
2017-08-0216566092ND
2017-08-0216566155ND
2017-08-0216566113ND
2017-08-02165661340.762 ppb
2017-09-1116726756ND
2017-09-1116726783ND
2017-09-1116726810ND
2017-09-1116726837ND
2017-09-1116726864ND
2017-10-1616880087ND
2017-10-1616880108ND
2017-10-1616880150ND
2017-10-1616880129ND
2017-11-0117023343ND
2017-11-0117023364ND
2017-11-0117023427ND
2017-11-0117023385ND
2017-11-01170234060.737 ppb
2017-12-0417161965ND
2017-12-0417161986ND
2017-12-0417162028ND
2017-12-0417162049ND
2017-12-0417162007ND
2017-12-0417162070ND