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EWG's Tap Water Database — 2021 UPDATE

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Trichloroethylene

Roslyn WD

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.

MORE ABOUT THIS CONTAMINANT

 

119

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND300ND
2015ND80ND
2016ND130ND
2017ND210ND
2018ND250ND
2019ND220ND

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
2014-01-081401261-002-POCSND
2014-02-111402494-002-POCSND
2014-03-271403J26-002-POCSND
2014-04-141404A24-002-POCSND
2014-05-081405607-002-POCSND
2014-05-161405C18-002-POCSND
2014-05-161405C18-003-POCSND
2014-05-161405C18-005-POCSND
2014-05-161405C18-004-POCSND
2014-06-051406390-002-POCSND
2014-06-121406931-002-POCSND
2014-06-171406B96-002-POCSND
2014-06-241406H35-002-POCSND
2014-07-081407453-002-POCSND
2014-07-211407E33-002-POCSND
2014-07-231407G36-002-POCSND
2014-07-301407L12-002-POCSND
2014-08-051408195-002-POCSND
2014-08-121408739-002-POCSND
2014-08-131408868-002-POCSND
2014-08-211408F37-002-POCSND
2014-08-251408H19-002-POCSND
2014-09-041409267-002-POCSND
2014-09-111409890-002-POCSND
2014-09-181409E16-001-POCSND
2014-10-091410647-002-POCSND
2014-10-221410E31-002-POCSND
2014-11-101411665-002-POCSND
2014-11-211411E96-002-POCSND
2014-12-051412410-002-POCSND
2015-01-151501871-002-POCSND
2015-02-101502633-001-POCSND
2015-04-161504C10-002-POCSND
2015-04-231504I52-001-POCSND
2015-04-231504I52-002-POCSND
2015-05-011505031-002-POCSND
2015-05-281505K32-002-POCSND
2015-06-091506722-002-POCSND
2016-02-111602918-002ND
2016-02-111602918-001ND
2016-05-031605147-001ND
2016-06-221606L82-001ND
2016-07-181607D67-002ND
2016-07-191607E94-002ND
2016-08-161608E60-002ND
2016-08-231608L92-002ND
2016-09-201609F92-001ND
2016-09-291609P72-001ND
2016-10-11701661001ND
2016-11-15704522005-POCND
2016-12-14706837002ND
2017-01-04708255003-POCND
2017-02-157011343003ND
2017-03-087012866003-POCSND
2017-04-067015144002ND
2017-04-197016340004-POCND
2017-04-197016340004ND
2017-05-107018231002ND
2017-05-127018516002-POCND
2017-06-067020424002-POCND
2017-07-207024744002-POCSND
2017-07-217024907002-POCND
2017-08-167027363002-POCND
2017-08-237027973002-POCND
2017-08-287028346002-POCND
2017-09-077029110002-POCND
2017-09-287031248001-POCND
2017-10-127032735002-POCND
2017-11-137035525002-POCND
2017-11-167035924002-POCND
2017-12-017036961002-POCND
2017-12-017036957002-POCND
2018-01-117040222002-POCND
2018-01-197040884002-POCND
2018-02-087042437002ND
2018-02-277043967002-POCND
2018-03-087044819001ND
2018-03-137045126002ND
2018-04-057047399001-POCND
2018-05-077050698002ND
2018-05-307053122001ND
2018-06-127054579002ND
2018-06-277056403002ND
2018-07-177058450002ND
2018-07-197058782002-POCND
2018-07-267059540002-POCND
2018-08-037060299002-POCND
2018-08-077060662002-POCND
2018-08-097060947002-POCND
2018-09-177065090001ND
2018-09-197065305001ND
2018-10-177068227002ND
2018-10-257069045002ND
2018-11-157071210002ND
2018-11-287072146002ND
2018-12-047072741002ND
2018-12-127073713001ND
2019-01-087075818002ND
2019-01-237077366001ND
2019-02-147079548002ND
2019-02-157079807002ND
2019-03-047081159002ND
2019-04-117085552002ND
2019-04-257087227002ND
2019-05-077088362002ND
2019-06-047092008002ND
2019-06-137093546002ND
2019-06-147093737003ND
2019-07-117097203001ND
2019-07-257098830002-POCND
2019-08-0670100015002-POCND
2019-08-1470101279002ND
2019-09-1070104226002ND
2019-09-1270104647001ND
2019-09-2470106023002ND
2019-10-0970107824002-POCND
2019-10-1670108611002ND
2019-11-1370111657002ND
2019-11-1470111831002ND