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EWG's Tap Water Database — 2019 UPDATE

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Trichloroethylene

Oyster Bay Water District

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.

 

182

Samples

0

Samples exceeding legal limit (MCL)

26

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0188 ppb321ND - 0.600 ppb
20130.0625 ppb323ND - 0.700 ppb
20140.116 ppb315ND - 0.890 ppb
20150.103 ppb162ND - 0.870 ppb
20160.165 ppb315ND - 1.20 ppb
20170.266 ppb4010ND - 1.50 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
2012-01-041201060-001A-POCND
2012-02-071202239-001A-POCND
2012-02-291202982-001-POCSND
2012-02-291202982-005-POCSND
2012-02-291202982-002-POCSND
2012-02-291202982-004-POCSND
2012-02-291202982-003-POCSND
2012-03-061203167-001A-POCND
2012-04-10104385-001A-POCSND
2012-05-011205064-001A-POCND
2012-05-291205B26-001-POCSND
2012-05-291205B26-002-POCSND
2012-05-291205B26-005-POCSND
2012-05-291205B26-004-POCSND
2012-05-291205B26-003-POCSND
2012-06-201206845-001A-POCND
2012-07-241207B14-001A-POCND
2012-08-141208853-001A-POCND
2012-09-111209462-001A-POCND
2012-09-171209795-003-POCSND
2012-09-171209795-004-POCSND
2012-09-171209795-005-POCSND
2012-09-171209795-002-POCSND
2012-09-171209795-001-POCSND
2012-10-091210463-001A-POCND
2012-11-141211578-001A-POCND
2012-11-271211B12-004-POCSND
2012-11-271211B12-002-POCSND
2012-11-271211B12-005-POCSND
2012-11-271211B12-001-POCSND
2012-11-271211B12-003-POCS0.600 ppb
2012-12-171212866-001A-POCND
2013-01-151301650-001A-POCND
2013-02-121302408-001A-POCND
2013-03-051303134-004-POCSND
2013-03-051303134-005-POCSND
2013-03-051303134-001-POCSND
2013-03-051303134-002-POCSND
2013-03-051303134-003-POCS0.700 ppb
2013-03-271303D04-001A-POCND
2013-04-161304942-001A-POCND
2013-05-081305379-001A-POCND
2013-06-071306365-001-POCSND
2013-06-191306A33-002-POCSND
2013-06-191306A33-003-POCSND
2013-06-191306A33-004-POCSND
2013-06-191306A33-001-POCSND
2013-06-191306A33-005-POCSND
2013-07-101307477-001-POCSND
2013-08-271308E22-001-POCSND
2013-09-111309562-004-POCSND
2013-09-111309562-003-POCS0.600 ppb
2013-09-111309562-005-POCSND
2013-09-111309562-001-POCSND
2013-09-111309562-002-POCSND
2013-09-171309958-001-POCSND
2013-10-141310777-001-POCSND
2013-11-131311601-001-POCSND
2013-12-041312158-001-POCSND
2013-12-181312990-004-POCSND
2013-12-181312990-002-POCSND
2013-12-181312990-003-POCS0.700 ppb
2013-12-181312990-001-POCSND
2013-12-301312E04-001-POCSND
2014-01-211401843-001-POCSND
2014-02-111402492-001-POCSND
2014-03-051403199-001-POCSND
2014-03-181403C52-001-POCS0.520 ppb
2014-03-181403C52-004-POCSND
2014-03-1803C52-005-POCSND
2014-03-181403C52-003-POCSND
2014-03-181403C52-002-POCS0.720 ppb
2014-04-081404646-001-POCSND
2014-04-221404F72-004-POCSND
2014-04-221404F65-001ND
2014-04-221404F72-001-POCSND
2014-04-221404F72-002-POCSND
2014-04-221404F72-003-POCS0.890 ppb
2014-05-271405J26-001-POCSND
2014-06-171406B90-001-POCSND
2014-07-231407G76-001-POCSND
2014-08-181408B68-007-POCSND
2014-09-101409716-001-POCSND
2014-09-231409H36-004-POCSND
2014-09-231409H36-003-POCS0.740 ppb
2014-09-231409H36-005-POCSND
2014-09-231409H36-001-POCSND
2014-09-231409H36-002-POCSND
2014-10-301410J92-001-POCSND
2014-12-031412213-001-POCSND
2014-12-031412213-005-POCSND
2014-12-031412213-003-POCS0.740 ppb
2014-12-031412213-002-POCSND
2014-12-031412213-004-POCSND
2014-12-161412B34-001-POCSND
2015-01-201501A62-001-POCSND
2015-02-111502655-001-POCSND
2015-03-041503213-001-POCSND
2015-03-041503213-003-POCS0.870 ppb
2015-03-041503213-002-POCSND
2015-03-041503213-004-POCSND
2015-03-041503213-005-POCSND
2015-03-091503478-001-POCSND
2015-04-011504003-001-POCSND
2015-05-181505C34-001-POCSND
2015-05-201505E59-002-POCSND
2015-05-201505E59-001-POCSND
2015-05-201505E59-003-POCSND
2015-05-201505E59-004-POCS0.780 ppb
2015-05-201505E59-005-POCSND
2015-06-031506225-001-POCSND
2016-01-271601H95-001ND
2016-02-241502E28-001ND
2016-03-151603B65-001ND
2016-03-301603O03-0010.500 ppb
2016-03-301603O03-004ND
2016-03-301603O03-005ND
2016-03-301603O03-0021.14 ppb
2016-03-301603O03-003ND
2016-04-191604G74-001ND
2016-06-151606E92-001ND
2016-06-151606E92-004ND
2016-06-151606E92-002ND
2016-06-151606E92-0031.12 ppb
2016-06-151606E92-005ND
2016-06-241605L69-001ND
2016-07-191607E62-001ND
2016-08-241608N05-001ND
2016-09-131609895-001-POCND
2016-09-261609L71-004-POCND
2016-09-261609L71-005-POCND
2016-09-261609L71-003-POC1.15 ppb
2016-09-291609L71-002-POCND
2016-09-291609L71-001-POCND
2016-10-24702735006ND
2016-11-07703821001-POCND
2016-11-21705054005ND
2016-11-21705054002ND
2016-11-21705054004ND
2016-11-217050540031.20 ppb
2016-11-21705054001ND
2016-12-19707151001ND
2017-01-18709324001-POCND
2017-02-13701114001-POCND
2017-03-207013675001-POCND
2017-03-297014366005-POCND
2017-03-297014366003-POC0.690 ppb
2017-03-297014366001-POCND
2017-03-2970143660041.50 ppb
2017-03-297014366002-POCND
2017-04-177015995001ND
2017-06-207021777001-POCSND
2017-06-217021951010-POCND
2017-06-217021951004-POC0.520 ppb
2017-06-217021951008-POCND
2017-06-217021951002-POCND
2017-06-217021951006-POC1.50 ppb
2017-06-277022475004-POCS1.30 ppb
2017-06-277022475002-POCSND
2017-06-277022475003-POCS0.510 ppb
2017-06-277022475005-POCSND
2017-06-277022475001-POCSND
2017-07-252902844-POCSND
2017-08-227027829001-POCND
2017-09-197030333001-POCND
2017-09-277031121002-POC0.520 ppb
2017-09-277031121003-POC1.30 ppb
2017-09-277031121001-POCSND
2017-09-277031121005-POCND
2017-09-277031121004-POCND
2017-10-117032516001-POCND
2017-11-287036579001-POCND
2017-12-207038629001-POCND
2017-12-277039161003-POCND
2017-12-277039161005-POC1.30 ppb
2017-12-277039108005-POCND
2017-12-277039108001-POCND
2017-12-277039108003-POCND
2017-12-277039108004-POCND
2017-12-277039108002-POC1.50 ppb
2017-12-277039161004-POCND
2017-12-277039161001-POCND