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EWG's Tap Water Database — 2021 UPDATE

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Trichloroethylene

Suburban Water Systems - San Jose Hills

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

 

161

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND350ND
2015ND170ND
2016ND300ND
2017ND330ND
2018ND310ND
2019ND150ND

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
2014-01-139588-064-1015ND
2014-01-139588-065-1036ND
2014-02-119588-064-1031ND
2014-02-119588-065-1041ND
2014-02-219588-071-1322ND
2014-03-119588-064-1417ND
2014-03-119588-071-1349ND
2014-03-129588-065-1323ND
2014-04-159588-064-1108ND
2014-04-159588-065-1125ND
2014-04-159588-071-1101ND
2014-05-139588-064-0943ND
2014-05-139588-065-1015ND
2014-05-139588-071-0937ND
2014-06-099588-064-0953ND
2014-06-099588-065-1006ND
2014-06-099588-071-0934ND
2014-07-109588-064-0950ND
2014-07-109588-065-1000ND
2014-07-159588-071-1227ND
2014-08-119588-064-0852ND
2014-08-119588-065-0928ND
2014-08-119588-071-0846ND
2014-09-109588-071-1245ND
2014-09-179588-064-0946ND
2014-09-179588-065-0957ND
2014-10-159588-064-0939ND
2014-10-159588-065-0953ND
2014-10-179588-071-1030ND
2014-11-219588-064-1000ND
2014-11-219588-065-1021ND
2014-11-219588-071-0950ND
2014-12-159588-065-1012ND
2014-12-159588-071-0940ND
2014-12-229588-064-0804ND
2015-01-199588-071-1125ND
2015-02-209588-071-1038ND
2015-03-109588-071-1030ND
2015-04-159588-071-1338ND
2015-05-119588-071-0925ND
2015-06-159588-071-1055ND
2015-07-159588-064-1342ND
2015-07-159588-065-1351ND
2015-07-159588-071-1338ND
2015-08-129588-064-0928ND
2015-08-129588-065-0942ND
2015-08-129588-071-0920ND
2015-09-109588-064-1121ND
2015-09-109588-065-1132ND
2015-09-119588-071-0925ND
2015-10-129588-071-1010ND
2015-11-029588-071-1046ND
2016-01-129588-071-0942ND
2016-02-179588-065-1216ND
2016-02-179588-071-1145ND
2016-02-249588-064-1243ND
2016-03-019588-065-1100ND
2016-03-019588-071-1038ND
2016-04-069588-065-1341ND
2016-04-069588-071-1320ND
2016-04-179588-064-2030ND
2016-05-029588-064-0945ND
2016-05-029588-065-1058ND
2016-05-029588-071-1001ND
2016-06-279588-065-1040ND
2016-06-279588-071-0950ND
2016-07-199588-064-0924ND
2016-07-199588-065-0940ND
2016-08-169588-064-1530ND
2016-08-169588-065-1430ND
2016-08-169588-071-1520ND
2016-09-199588-064-1120ND
2016-09-199588-065-1140ND
2016-10-109588-071-1628ND
2016-10-119588-064-0824ND
2016-10-119588-065-0854ND
2016-11-049588-064-1120ND
2016-11-049588-065-1150ND
2016-11-049588-071-1135ND
2016-12-139588-064-1029ND
2016-12-139588-065-1135ND
2016-12-139588-071-1055ND
2017-01-039588-065-1044ND
2017-02-089588-070-0840ND
2017-02-209588-064-1108ND
2017-02-209588-065-1125ND
2017-03-079588-071-0943ND
2017-03-089588-065-0945ND
2017-04-119588-065-1013ND
2017-04-119588-071-1002ND
2017-04-199588-064-1205ND
2017-05-039588-064-1050ND
2017-05-039588-065-1125ND
2017-05-039588-071-1102ND
2017-06-099588-064-0837ND
2017-06-099588-065-0851ND
2017-06-099588-071-0842ND
2017-07-119588-064-1022ND
2017-07-119588-065-1112ND
2017-07-119588-071-1033ND
2017-08-119588-064-0854ND
2017-08-119588-065-0932ND
2017-08-119588-071-0903ND
2017-09-119588-064-1025ND
2017-09-119588-065-1150ND
2017-09-119588-071-1034ND
2017-10-179588-064-0910ND
2017-10-179588-065-0956ND
2017-10-179588-071-0852ND
2017-11-179588-064-0815ND
2017-11-179588-065-0845ND
2017-11-179588-071-0822ND
2017-12-129588-064-0921ND
2017-12-159588-065-1334ND
2017-12-159588-071-1325ND
2018-01-179588-065-0901ND
2018-01-179588-071-0841ND
2018-02-069588-064-1010ND
2018-02-069588-065-1030ND
2018-02-069588-071-1018ND
2018-03-079588-065-0858ND
2018-03-129588-071-0915ND
2018-04-119588-065-0933ND
2018-05-039588-064-1020ND
2018-05-039588-065-1110ND
2018-05-039588-071-1035ND
2018-06-019588-071-1020ND
2018-06-049588-065-0848ND
2018-06-089588-064-0815ND
2018-07-069588-064-0902ND
2018-07-069588-065-0912ND
2018-07-069588-071-0906ND
2018-08-069588-065-0856ND
2018-08-079588-064-0905ND
2018-08-079588-071-0913ND
2018-09-219588-065-0842ND
2018-09-269588-064-1010ND
2018-09-269588-071-1018ND
2018-10-029588-065-0908ND
2018-10-039588-064-0845ND
2018-10-039588-071-0855ND
2018-11-069588-064-0850ND
2018-11-069588-065-0935ND
2018-11-069588-071-0858ND
2018-12-049588-071-0843ND
2018-12-129588-065-1345ND
2019-01-219588-065-0911ND
2019-02-089588-064-0855ND
2019-02-089588-065-0805ND
2019-03-049588-065-1330ND
2019-04-089588-065-1028ND
2019-05-079588-065-0853ND
2019-06-109588-065-1013ND
2019-07-109588-065-1011ND
2019-08-089588-065-1249ND
2019-09-129588-065-0941ND
2019-10-099588-065-1215ND
2019-10-099588-071-1200ND
2019-11-209588-065-1045ND
2019-12-129588-065-1010ND
2019-12-129588-071-1031ND