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EWG's Tap Water Database — 2021 UPDATE

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Trichloroethylene

Chino Basin Desalter Authority - Desalter 1

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

 

540

Samples

34

Samples exceeding legal limit (MCL)

142

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.883 ppb5519ND - 3.60 ppb
20150.705 ppb8523ND - 4.30 ppb
20160.945 ppb10024ND - 5.80 ppb
20170.508 ppb9914ND - 10.00 ppb
20181.97 ppb11727ND - 23.0 ppb
20192.85 ppb8435ND - 19.0 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
2014-01-214790-021-1400ND
2014-02-114790-002-12083.40 ppb
2014-02-114790-016-0813ND
2014-02-114790-020-0837ND
2014-03-114790-002-09413.60 ppb
2014-03-114790-016-0702ND
2014-03-114790-020-0615ND
2014-04-084790-002-07003.00 ppb
2014-04-084790-009-0845ND
2014-04-084790-010-09000.980 ppb
2014-04-084790-011-09152.90 ppb
2014-05-124790-002-07392.90 ppb
2014-05-124790-016-1030ND
2014-05-124790-020-1043ND
2014-06-104790-002-10123.10 ppb
2014-06-104790-016-0654ND
2014-06-104790-020-0650ND
2014-06-184790-021-1036ND
2014-07-024790-001-0845ND
2014-07-024790-002-07453.10 ppb
2014-07-024790-004-0600ND
2014-07-084790-002-09202.70 ppb
2014-07-084790-009-1000ND
2014-07-084790-010-09500.870 ppb
2014-07-084790-011-10202.80 ppb
2014-07-084790-016-0648ND
2014-07-084790-020-0654ND
2014-07-094790-005-0645ND
2014-07-094790-006-0845ND
2014-07-094790-007-0915ND
2014-07-094790-008-0745ND
2014-07-164790-009-0600ND
2014-07-164790-010-07000.880 ppb
2014-07-164790-011-08002.80 ppb
2014-07-164790-013-0915ND
2014-07-234790-015-0600ND
2014-07-234790-020-0904ND
2014-08-124790-002-11352.90 ppb
2014-08-124790-016-0839ND
2014-08-124790-020-0850ND
2014-08-134790-014-0900ND
2014-09-094790-002-09403.10 ppb
2014-09-094790-016-0640ND
2014-09-094790-020-0720ND
2014-09-094790-021-0844ND
2014-10-144790-002-07552.80 ppb
2014-10-144790-009-0825ND
2014-10-144790-010-08400.830 ppb
2014-10-144790-011-09002.80 ppb
2014-10-144790-016-0950ND
2014-10-144790-020-0920ND
2014-12-094790-002-07253.10 ppb
2014-12-094790-016-0904ND
2014-12-094790-020-1055ND
2014-12-304790-021-1035ND
2015-01-124790-002-07252.80 ppb
2015-01-124790-009-0810ND
2015-01-124790-010-08220.840 ppb
2015-01-124790-011-08352.80 ppb
2015-01-124790-016-0715ND
2015-01-124790-020-0936ND
2015-02-104790-016-0715ND
2015-02-104790-020-0744ND
2015-03-104790-002-07102.90 ppb
2015-03-104790-016-0725ND
2015-03-104790-020-0713ND
2015-03-104790-021-1020ND
2015-04-144790-002-07252.90 ppb
2015-04-144790-009-0826ND
2015-04-144790-010-08170.700 ppb
2015-04-144790-011-08002.70 ppb
2015-04-144790-016-0805ND
2015-04-144790-020-0830ND
2015-05-124790-002-09403.20 ppb
2015-05-124790-016-0820ND
2015-05-124790-020-0830ND
2015-05-194790-016-0724ND
2015-05-264790-016-0708ND
2015-06-024790-016-0645ND
2015-06-094790-002-07522.90 ppb
2015-06-094790-020-0700ND
2015-06-234790-016-0630ND
2015-06-304790-016-0625ND
2015-07-014790-001-0910ND
2015-07-014790-002-08303.00 ppb
2015-07-014790-004-1014ND
2015-07-074790-016-0620ND
2015-07-084790-005-0730ND
2015-07-084790-008-0820ND
2015-07-084790-009-0915ND
2015-07-084790-010-10200.840 ppb
2015-07-084790-011-11233.30 ppb
2015-07-144790-002-07253.20 ppb
2015-07-144790-009-0755ND
2015-07-144790-010-08100.820 ppb
2015-07-144790-011-08253.30 ppb
2015-07-144790-016-0708ND
2015-07-144790-020-0630ND
2015-07-154790-020-0730ND
2015-07-154790-021-0650ND
2015-07-154790-021-0730ND
2015-07-214790-016-0637ND
2015-07-224790-006-1120ND
2015-07-224790-007-1045ND
2015-07-224790-013-0945ND
2015-07-224790-014-0853ND
2015-07-284790-016-0640ND
2015-08-044790-016-0620ND
2015-08-114790-002-09553.40 ppb
2015-08-114790-016-0827ND
2015-08-114790-020-0755ND
2015-08-184790-016-0655ND
2015-08-254790-016-0641ND
2015-09-014790-016-0700ND
2015-09-084790-002-07553.20 ppb
2015-09-084790-016-0735ND
2015-09-084790-020-0715ND
2015-09-154790-016-0700ND
2015-09-224790-016-0000ND
2015-09-294790-016-08000.830 ppb
2015-10-064790-016-0815ND
2015-10-134790-002-08053.80 ppb
2015-10-134790-009-0745ND
2015-10-134790-010-07350.830 ppb
2015-10-134790-011-07203.20 ppb
2015-10-134790-020-0705ND
2015-10-204790-016-0637ND
2015-10-274790-016-0634ND
2015-11-104790-002-07254.20 ppb
2015-11-104790-016-0800ND
2015-11-104790-020-0820ND
2015-11-174790-016-0725ND
2015-11-244790-016-0748ND
2015-12-014790-016-0710ND
2015-12-084790-002-10004.30 ppb
2015-12-084790-020-0730ND
2015-12-094790-016-0630ND
2015-12-154790-016-0900ND
2015-12-224790-016-0747ND
2015-12-294790-016-0717ND
2016-01-054790-016-0745ND
2016-01-124790-002-10114.80 ppb
2016-01-124790-016-0940ND
2016-01-144790-002-08084.60 ppb
2016-01-144790-009-0825ND
2016-01-144790-010-08300.890 ppb
2016-01-144790-011-08453.50 ppb
2016-01-144790-016-0822ND
2016-01-224790-016-0935ND
2016-01-264790-016-0820ND
2016-02-024790-016-0650ND
2016-02-094790-002-06424.20 ppb
2016-02-094790-016-0745ND
2016-02-094790-020-0730ND
2016-02-164790-016-0615ND
2016-02-234790-016-0752ND
2016-03-014790-016-0705ND
2016-03-084790-002-08514.60 ppb
2016-03-084790-016-0610ND
2016-03-084790-020-0642ND
2016-03-154790-016-0706ND
2016-03-214790-016-0653ND
2016-03-294790-016-0634ND
2016-04-044790-015-0945ND
2016-04-054790-016-0710ND
2016-04-124790-002-11104.60 ppb
2016-04-124790-009-0737ND
2016-04-124790-010-07481.20 ppb
2016-04-124790-011-07584.00 ppb
2016-04-124790-016-0658ND
2016-04-124790-020-0640ND
2016-04-194790-016-0702ND
2016-04-264790-016-0646ND
2016-05-034790-016-0640ND
2016-05-104790-002-08304.50 ppb
2016-05-104790-016-0815ND
2016-05-104790-020-0832ND
2016-05-174790-016-0728ND
2016-05-244790-016-0741ND
2016-05-314790-016-0708ND
2016-06-074790-016-0725ND
2016-06-144790-002-11035.60 ppb
2016-06-144790-016-0745ND
2016-06-144790-020-0730ND
2016-06-214790-016-0825ND
2016-06-284790-016-0728ND
2016-07-054790-016-0758ND
2016-07-064790-005-0600ND
2016-07-064790-008-0650ND
2016-07-064790-009-0800ND
2016-07-064790-010-09100.680 ppb
2016-07-124790-002-07114.60 ppb
2016-07-124790-009-0735ND
2016-07-124790-010-08051.10 ppb
2016-07-124790-011-08183.80 ppb
2016-07-134790-006-0700ND
2016-07-134790-007-0630ND
2016-07-134790-021-0800ND
2016-07-194790-016-1100ND
2016-07-204790-011-07003.90 ppb
2016-07-204790-013-0800ND
2016-07-204790-014-0900ND
2016-07-204790-020-1000ND
2016-07-264790-016-0735ND
2016-07-274790-001-0700ND
2016-07-274790-002-07304.90 ppb
2016-07-274790-004-0845ND
2016-08-024790-016-0635ND
2016-08-094790-002-09295.10 ppb
2016-08-094790-016-0900ND
2016-08-094790-020-0725ND
2016-08-164790-016-0640ND
2016-08-234790-016-0650ND
2016-08-304790-016-0622ND
2016-09-064790-016-0711ND
2016-09-134790-002-08054.90 ppb
2016-09-134790-016-0635ND
2016-09-134790-020-0637ND
2016-09-204790-016-0640ND
2016-09-274790-016-0725ND
2016-10-044790-016-0711ND
2016-10-114790-002-09465.60 ppb
2016-10-114790-009-1120ND
2016-10-114790-010-11401.20 ppb
2016-10-114790-011-11554.60 ppb
2016-10-184790-016-0720ND
2016-10-254790-016-0623ND
2016-11-014790-016-0659ND
2016-11-084790-002-07555.80 ppb
2016-11-084790-016-0758ND
2016-11-084790-020-0738ND
2016-11-154790-016-0705ND
2016-11-224790-016-0710ND
2016-11-294790-016-0740ND
2016-12-054790-016-0650ND
2016-12-134790-002-09385.80 ppb
2016-12-134790-016-0720ND
2016-12-134790-020-0700ND
2016-12-204790-016-0715ND
2016-12-284790-016-0642ND
2017-01-034790-016-0711ND
2017-01-104790-002-08305.40 ppb
2017-01-104790-009-0900ND
2017-01-104790-010-09051.20 ppb
2017-01-104790-011-09203.30 ppb
2017-01-104790-016-0908ND
2017-01-104790-020-0820ND
2017-01-174790-016-0737ND
2017-01-244790-016-0815ND
2017-01-314790-016-0720ND
2017-02-074790-016-0755ND
2017-02-144790-002-08156.30 ppb
2017-02-144790-016-0750ND
2017-02-144790-020-0745ND
2017-02-214790-016-0748ND
2017-02-284790-016-0719ND
2017-03-074790-016-0750ND
2017-03-144790-002-07056.30 ppb
2017-03-144790-016-0555ND
2017-03-144790-020-0542ND
2017-03-144790-021-0920ND
2017-03-214790-016-0845ND
2017-03-284790-016-0735ND
2017-04-044790-016-0750ND
2017-04-114790-009-06300.680 ppb
2017-04-114790-010-06360.740 ppb
2017-04-114790-011-06473.20 ppb
2017-04-114790-016-0645ND
2017-04-114790-020-0601ND
2017-04-114790-021-0815ND
2017-04-184790-016-0730ND
2017-04-254790-016-0720ND
2017-05-024790-016-0701ND
2017-05-094790-016-0758ND
2017-05-094790-020-0748ND
2017-05-094790-021-1140ND
2017-05-164790-016-0730ND
2017-05-234790-016-0655ND
2017-05-304790-016-0720ND
2017-06-064790-016-0706ND
2017-06-134790-016-0850ND
2017-06-134790-020-0830ND
2017-06-134790-021-1205ND
2017-06-204790-016-0730ND
2017-06-274790-016-0708ND
2017-07-054790-016-0740ND
2017-07-114790-009-0800ND
2017-07-114790-010-08101.10 ppb
2017-07-114790-011-08203.70 ppb
2017-07-114790-016-0750ND
2017-07-114790-020-0705ND
2017-07-114790-021-1045ND
2017-07-124790-020-0600ND
2017-07-124790-023-0930ND
2017-07-124790-024-0630ND
2017-07-194790-011-05303.70 ppb
2017-07-194790-013-0630ND
2017-07-194790-014-0730ND
2017-07-194790-015-0830ND
2017-07-254790-016-0825ND
2017-07-264790-006-0900ND
2017-07-264790-021-0700ND
2017-08-014790-016-0745ND
2017-08-024790-004-0815ND
2017-08-084790-016-0845ND
2017-08-084790-020-0822ND
2017-08-084790-021-1115ND
2017-08-154790-016-0700ND
2017-08-184790-001-1100ND
2017-08-184790-007-1010ND
2017-08-224790-016-0645ND
2017-08-294790-016-0655ND
2017-09-124790-016-0840ND
2017-09-124790-020-0815ND
2017-09-194790-016-0520ND
2017-09-264790-016-0800ND
2017-10-034790-016-0715ND
2017-10-104790-009-0920ND
2017-10-104790-010-09401.20 ppb
2017-10-104790-011-09553.50 ppb
2017-10-104790-016-0815ND
2017-10-104790-020-0735ND
2017-10-104790-021-1225ND
2017-10-174790-016-1130ND
2017-10-244790-016-0730ND
2017-10-304790-016-0745ND
2017-11-074790-016-0720ND
2017-11-144790-016-0705ND
2017-11-144790-020-0700ND
2017-11-144790-021-1112ND
2017-11-214790-016-0730ND
2017-11-284790-016-0709ND
2017-12-054790-016-0710ND
2017-12-114790-016-0705ND
2017-12-114790-020-0635ND
2017-12-194790-002-090510.00 ppb
2017-12-194790-016-0700ND
2017-12-194790-021-1255ND
2017-12-274790-016-0945ND
2018-01-024790-016-0740ND
2018-01-094790-016-0900ND
2018-01-094790-020-0720ND
2018-01-164790-002-083015.0 ppb
2018-01-164790-009-0915ND
2018-01-164790-010-09300.770 ppb
2018-01-164790-016-0830ND
2018-01-164790-021-1200ND
2018-01-234790-016-0745ND
2018-01-304790-016-0705ND
2018-02-064790-016-0820ND
2018-02-134790-002-07359.50 ppb
2018-02-134790-016-0720ND
2018-02-134790-020-0700ND
2018-02-134790-021-1145ND
2018-02-204790-016-0840ND
2018-02-274790-016-0700ND
2018-03-064790-016-0820ND
2018-03-134790-002-084517.0 ppb
2018-03-134790-016-0710ND
2018-03-134790-021-1205ND
2018-03-204790-016-0830ND
2018-03-204790-020-0805ND
2018-04-034790-016-1250ND
2018-04-104790-002-070522.0 ppb
2018-04-104790-010-09150.860 ppb
2018-04-104790-016-1310ND
2018-04-104790-021-1120ND
2018-04-134790-009-10400.720 ppb
2018-04-174790-011-08451.000 ppb
2018-04-174790-016-0740ND
2018-04-194790-020-0855ND
2018-04-244790-016-0655ND
2018-05-014790-016-0730ND
2018-05-084790-002-072017.0 ppb
2018-05-084790-016-0930ND
2018-05-084790-020-0950ND
2018-05-084790-021-1030ND
2018-05-154790-016-1015ND
2018-05-224790-016-0805ND
2018-05-294790-016-0843ND
2018-06-054790-016-0845ND
2018-06-124790-016-0850ND
2018-06-124790-020-0820ND
2018-06-124790-021-1130ND
2018-06-194790-002-101016.0 ppb
2018-06-194790-016-0835ND
2018-06-264790-016-0715ND
2018-07-034790-016-0915ND
2018-07-104790-002-081018.0 ppb
2018-07-104790-009-0950ND
2018-07-104790-010-10101.30 ppb
2018-07-104790-016-0840ND
2018-07-104790-020-0800ND
2018-07-104790-021-0925ND
2018-07-114790-011-09201.90 ppb
2018-07-124790-006-0930ND
2018-07-124790-007-1050ND
2018-07-124790-021-0700ND
2018-07-174790-005-0830ND
2018-07-174790-008-0715ND
2018-07-174790-009-1015ND
2018-07-174790-010-11001.40 ppb
2018-07-244790-011-06353.70 ppb
2018-07-244790-014-0800ND
2018-07-244790-015-0900ND
2018-07-244790-016-0930ND
2018-07-314790-001-0445ND
2018-07-314790-002-053016.0 ppb
2018-07-314790-004-0830ND
2018-07-314790-016-0705ND
2018-08-034790-013-1445ND
2018-08-074790-016-0725ND
2018-08-074790-023-0945ND
2018-08-074790-024-1030ND
2018-08-144790-002-104017.0 ppb
2018-08-144790-009-08001.000 ppb
2018-08-144790-010-08151.40 ppb
2018-08-144790-016-1000ND
2018-08-144790-020-0730ND
2018-08-144790-020-0800ND
2018-08-144790-021-1145ND
2018-08-214790-016-0745ND
2018-08-284790-016-0745ND
2018-09-044790-016-0755ND
2018-09-114790-002-090018.0 ppb
2018-09-114790-009-0930ND
2018-09-114790-010-09501.40 ppb
2018-09-114790-011-10003.40 ppb
2018-09-114790-016-0900ND
2018-09-114790-020-0845ND
2018-09-114790-021-0740ND
2018-09-184790-016-0900ND
2018-09-254790-016-0800ND
2018-10-024790-016-0755ND
2018-10-094790-002-104223.0 ppb
2018-10-094790-010-07132.20 ppb
2018-10-094790-016-0905ND
2018-10-094790-020-0911ND
2018-10-104790-011-11302.50 ppb
2018-10-104790-021-1340ND
2018-10-114790-009-1215ND
2018-10-174790-016-1047ND
2018-10-234790-016-0650ND
2018-10-304790-016-0911ND
2018-11-134790-016-0845ND
2018-11-204790-016-0809ND
2018-11-274790-016-0805ND
2018-12-044790-016-0825ND
2018-12-114790-002-084017.0 ppb
2018-12-114790-009-0955ND
2018-12-114790-010-10151.000 ppb
2018-12-114790-016-0900ND
2018-12-114790-020-0845ND
2018-12-114790-021-0740ND
2018-12-184790-016-0720ND
2018-12-274790-016-0930ND
2019-01-084790-002-103017.0 ppb
2019-01-084790-009-0950ND
2019-01-084790-010-09401.20 ppb
2019-01-084790-011-09203.00 ppb
2019-01-084790-020-1015ND
2019-01-084790-021-1215ND
2019-02-124790-002-074716.0 ppb
2019-02-124790-009-0857ND
2019-02-124790-010-09091.10 ppb
2019-02-124790-020-1000ND
2019-02-124790-021-1100ND
2019-03-124790-002-081817.0 ppb
2019-03-124790-009-0917ND
2019-03-124790-010-09351.20 ppb
2019-03-124790-020-0910ND
2019-03-124790-021-0725ND
2019-04-094790-002-082016.0 ppb
2019-04-094790-009-0930ND
2019-04-094790-010-09401.10 ppb
2019-04-094790-011-09552.40 ppb
2019-04-094790-021-0730ND
2019-04-104790-020-1445ND
2019-04-124790-020-1430ND
2019-05-144790-002-102017.0 ppb
2019-05-144790-009-0850ND
2019-05-144790-010-08301.20 ppb
2019-05-144790-020-0910ND
2019-05-144790-021-0815ND
2019-06-114790-002-092019.0 ppb
2019-06-114790-009-0830ND
2019-06-114790-010-08101.30 ppb
2019-06-114790-020-0625ND
2019-06-114790-021-1120ND
2019-07-094790-002-101017.0 ppb
2019-07-094790-009-0730ND
2019-07-094790-010-07451.10 ppb
2019-07-094790-020-0818ND
2019-07-094790-021-0715ND
2019-07-104790-001-1015ND
2019-07-104790-002-091512.0 ppb
2019-07-104790-004-1100ND
2019-07-164790-011-08452.40 ppb
2019-07-174790-005-0745ND
2019-07-174790-008-0830ND
2019-07-174790-009-0900ND
2019-07-174790-010-08001.10 ppb
2019-07-244790-013-0930ND
2019-07-244790-014-0900ND
2019-07-244790-015-1000ND
2019-07-314790-006-10000.540 ppb
2019-07-314790-007-0900ND
2019-07-314790-021-0945ND
2019-08-074790-023-08000.660 ppb
2019-08-074790-024-0730ND
2019-08-134790-002-110016.0 ppb
2019-08-134790-009-0950ND
2019-08-134790-010-09351.20 ppb
2019-08-134790-020-0635ND
2019-08-134790-021-0920ND
2019-08-144790-020-0830ND
2019-09-104790-002-095017.0 ppb
2019-09-104790-009-10300.730 ppb
2019-09-104790-010-10101.20 ppb
2019-09-104790-020-0705ND
2019-09-104790-021-0855ND
2019-10-084790-002-111017.0 ppb
2019-10-084790-009-0900ND
2019-10-084790-010-08401.10 ppb
2019-10-084790-011-08202.70 ppb
2019-10-084790-020-0742ND
2019-10-084790-021-1245ND
2019-11-124790-002-090014.0 ppb
2019-11-124790-009-0950ND
2019-11-124790-010-09350.990 ppb
2019-11-124790-020-1135ND
2019-11-124790-021-1045ND
2019-11-264790-023-11360.720 ppb
2019-12-104790-002-100016.0 ppb
2019-12-104790-009-0735ND
2019-12-104790-010-08001.20 ppb
2019-12-104790-020-0700ND
2019-12-104790-021-1015ND
2019-12-234790-006-0842ND
2019-12-234790-023-09220.580 ppb