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EWG's Tap Water Database — 2021 UPDATE

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1,2,4-Trichlorobenzene

San Juan Basin Authority

1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.

MORE ABOUT THIS CONTAMINANT

 

185

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND560ND
2015ND330ND
2016ND170ND
2017ND230ND
2018ND310ND
2019ND250ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 5 ppb

The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against hormone disruption.

EPA Maximum Contaminant
Level (MCL) 70 ppb

The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-079590-001-1045ND
2014-01-079590-002-1000ND
2014-01-079590-003-0938ND
2014-01-079590-004-1030ND
2014-01-079590-014-1130ND
2014-01-079590-015-1155ND
2014-01-229590-005-1030ND
2014-01-229590-006-1145ND
2014-02-049590-001-1040ND
2014-02-049590-003-1218ND
2014-02-049590-004-1239ND
2014-02-049590-005-0959ND
2014-02-049590-014-1314ND
2014-02-049590-015-1339ND
2014-02-119590-002-0945ND
2014-02-119590-006-0839ND
2014-03-049590-001-0940ND
2014-03-049590-002-1015ND
2014-03-049590-003-1039ND
2014-03-049590-004-1105ND
2014-03-049590-005-1120ND
2014-03-049590-006-0830ND
2014-03-049590-014-0905ND
2014-03-049590-015-0750ND
2014-04-089590-001-0954ND
2014-04-089590-002-1018ND
2014-04-089590-003-1039ND
2014-04-089590-004-1105ND
2014-04-089590-005-1115ND
2014-04-089590-006-0913ND
2014-04-089590-014-0842ND
2014-04-089590-015-0758ND
2014-05-069590-001-1008ND
2014-05-069590-002-1046ND
2014-05-069590-003-1116ND
2014-05-069590-004-1020ND
2014-05-069590-005-1130ND
2014-05-069590-006-0930ND
2014-05-069590-014-0844ND
2014-05-069590-015-0758ND
2014-08-059590-003-1000ND
2014-08-059590-004-1035ND
2014-08-059590-005-1105ND
2014-08-059590-006-0920ND
2014-08-059590-014-0835ND
2014-08-059590-015-0750ND
2014-09-039590-001-1300ND
2014-09-239590-002-1315ND
2014-11-049590-001-0835ND
2014-11-049590-002-0908ND
2014-11-049590-004-0926ND
2014-11-049590-005-1100ND
2014-11-049590-006-1028ND
2014-11-259590-003-0909ND
2014-11-259590-014-0838ND
2014-11-259590-015-0750ND
2015-02-039590-002-0940ND
2015-02-039590-003-1025ND
2015-02-039590-004-1044ND
2015-02-039590-005-1120ND
2015-02-039590-006-0900ND
2015-05-059590-002-0850ND
2015-05-059590-003-0910ND
2015-05-059590-004-0926ND
2015-08-129590-001-1013ND
2015-08-129590-002-0949ND
2015-08-129590-003-0955ND
2015-08-129590-004-1005ND
2015-08-129590-005-1020ND
2015-08-129590-006-1045ND
2015-08-129590-014-1055ND
2015-08-129590-015-1108ND
2015-08-249590-002-1308ND
2015-08-249590-003-1313ND
2015-08-249590-004-1319ND
2015-08-259590-001-0816ND
2015-08-259590-005-0833ND
2015-08-259590-006-0805ND
2015-08-259590-014-0755ND
2015-08-259590-015-0708ND
2015-10-069590-002-0847ND
2015-10-069590-003-0913ND
2015-10-069590-004-0939ND
2015-11-309590-002-1118ND
2015-11-309590-003-1130ND
2015-11-309590-004-1141ND
2015-12-229590-001-1135ND
2015-12-229590-014-1149ND
2015-12-229590-015-1300ND
2016-02-089590-001-1000ND
2016-02-089590-002-1027ND
2016-02-089590-003-1040ND
2016-02-089590-004-1052ND
2016-02-089590-005-1110ND
2016-02-089590-006-0840ND
2016-02-089590-014-0852ND
2016-02-089590-015-0909ND
2016-05-179590-001-0928ND
2016-05-179590-002-0822ND
2016-05-179590-003-0845ND
2016-05-179590-004-0911ND
2016-05-179590-005-1010ND
2016-05-179590-015-0745ND
2016-08-019590-002-0836ND
2016-08-019590-003-0906ND
2016-08-019590-004-0945ND
2017-02-099590-002-0850ND
2017-02-099590-003-0930ND
2017-02-099590-004-1000ND
2017-05-119590-011-1032ND
2017-05-129590-002-0745ND
2017-05-129590-003-0805ND
2017-05-129590-004-0823ND
2017-08-039590-001-1423ND
2017-08-039590-005-1323ND
2017-08-089590-001-0820ND
2017-08-089590-002-0910ND
2017-08-089590-003-1012ND
2017-08-089590-005-1105ND
2017-09-059590-001-0840ND
2017-09-059590-002-0910ND
2017-09-059590-003-0958ND
2017-09-059590-005-1056ND
2017-09-289590-004-0915ND
2017-12-049590-001-1315ND
2017-12-049590-002-1358ND
2017-12-049590-003-1435ND
2017-12-049590-004-1505ND
2017-12-049590-005-1150ND
2018-02-219590-001-0845ND
2018-02-219590-005-1006ND
2018-03-059590-001-0959ND
2018-03-059590-002-1032ND
2018-03-059590-003-1115ND
2018-03-059590-004-1140ND
2018-03-059590-005-1214ND
2018-04-132920-001-0913ND
2018-04-139590-001-0913ND
2018-04-132920-002-0955ND
2018-04-139590-002-0955ND
2018-04-139590-003-1045ND
2018-04-132920-004-1120ND
2018-04-139590-004-1120ND
2018-04-132920-005-1215ND
2018-04-139590-005-1215ND
2018-05-099590-001-0900ND
2018-05-099590-002-0945ND
2018-05-099590-003-1025ND
2018-05-099590-004-1055ND
2018-05-099590-005-1140ND
2018-08-089590-001-0845ND
2018-08-089590-002-0940ND
2018-08-089590-003-1030ND
2018-08-089590-004-1115ND
2018-08-089590-005-1200ND
2018-11-059590-001-0825ND
2018-11-059590-002-0855ND
2018-11-059590-003-0925ND
2018-11-059590-004-0955ND
2018-11-059590-005-1028ND
2019-03-274792-001-0750ND
2019-03-274792-003-0815ND
2019-03-274792-004-0800ND
2019-03-274792-005-0845ND
2019-03-274792-015-1100ND
2019-04-164792-001-1035ND
2019-04-164792-003-1100ND
2019-04-164792-004-1125ND
2019-04-164792-005-1300ND
2019-04-164792-006-0910ND
2019-04-164792-015-1215ND
2019-07-084792-001-0950ND
2019-07-084792-002-1035ND
2019-07-084792-003-1055ND
2019-07-084792-004-1020ND
2019-07-084792-005-1400ND
2019-07-084792-006-1315ND
2019-07-094792-015-0900ND
2019-10-154792-001-0740ND
2019-10-154792-002-1110ND
2019-10-154792-003-1135ND
2019-10-154792-004-1025ND
2019-10-154792-005-1345ND
2019-10-154792-006-0945ND
2019-10-154792-015-0845ND