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EWG's Tap Water Database — 2021 UPDATE

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1,4-Dioxane

City of Fullerton

1,4-Dioxane is a solvent classified by the EPA as a likely human carcinogen. It contaminates groundwater in many states due to industrial wastewater discharges, plastic manufacturing runoff and landfill runoff. Read More.

Animal studies show that 1,4-dioxane can target the liver, kidneys and respiratory system, and that prenatal exposure can harm the developing fetus. The State of California has set a Public Heatlh Goal of no more than 1 part per billion of 1,4-dioxane in drinking water. The state of Massachusetts sets a legal limit of 0.3 ppb, and New Hampshire's limit is 3 parts per billion. There is no national drinking water standard for this contaminant.

Click here to read more about 1,4-dioxane.

MORE ABOUT THIS CONTAMINANT

 

252

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND80ND
20140.0549 ppb5813ND - 0.418 ppb
2015ND360ND
2016ND400ND
2017ND370ND
2018ND380ND
2019ND350ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.35 ppb

The EWG Health Guideline of 0.35 ppb for 1,4-dioxane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2013-03-043010010811ND
2013-03-053010010810ND
2013-06-103010010811-2ND
2013-06-103010010810-2ND
2013-09-033010010811-3ND
2013-09-033010010810-3ND
2013-12-093010010811-4ND
2013-12-093010010810-4ND
2014-02-114417-007-1020ND
2014-02-114417-010-0925ND
2014-02-114417-011-0940ND
2014-02-114417-012-0910ND
2014-02-114417-013-1010ND
2014-02-114417-014-0955ND
2014-02-114417-015-1035ND
2014-02-114417-018-0855ND
2014-02-114417-021-1050ND
2014-03-104417-001-1045ND
2014-03-204417-016-0900ND
2014-04-153010010805-10.414 ppb
2014-04-153010010808-10.344 ppb
2014-04-153010010806-1ND
2014-04-153010010802-10.143 ppb
2014-04-153010010804-10.156 ppb
2014-04-153010010803-10.199 ppb
2014-04-153010010809-10.240 ppb
2014-06-024417-001-1210ND
2014-06-024417-007-1055ND
2014-06-024417-010-0940ND
2014-06-024417-011-0910ND
2014-06-024417-012-0955ND
2014-06-024417-013-1010ND
2014-06-024417-014-0855ND
2014-06-024417-015-1110ND
2014-06-024417-016-1150ND
2014-06-024417-018-0925ND
2014-06-024417-021-1035ND
2014-08-054417-001-1210ND
2014-08-054417-007-1105ND
2014-08-054417-010-1010ND
2014-08-054417-011-0925ND
2014-08-054417-012-0955ND
2014-08-054417-013-1025ND
2014-08-054417-014-0910ND
2014-08-054417-015-1120ND
2014-08-054417-016-1145ND
2014-08-054417-018-0940ND
2014-08-054417-021-1045ND
2014-09-16140904550.162 ppb
2014-09-16140904560.418 ppb
2014-09-16140904510.386 ppb
2014-09-16140904520.0900 ppb
2014-09-16140904530.147 ppb
2014-09-16140904500.188 ppb
2014-09-16140904540.295 ppb
2014-11-054417-001-1205ND
2014-11-054417-007-1110ND
2014-11-054417-010-0925ND
2014-11-054417-011-1010ND
2014-11-054417-012-0910ND
2014-11-054417-013-0940ND
2014-11-054417-014-0955ND
2014-11-054417-015-1050ND
2014-11-054417-016-1130ND
2014-11-054417-018-0855ND
2014-11-054417-021-1025ND
2015-02-174417-007-1035ND
2015-02-174417-010-0845ND
2015-02-174417-011-0900ND
2015-02-174417-012-0915ND
2015-02-174417-014-0945ND
2015-02-174417-016-1300ND
2015-02-174417-021-1010ND
2015-05-044417-001-1135ND
2015-05-044417-007-1005ND
2015-05-044417-010-0935ND
2015-05-044417-011-0905ND
2015-05-044417-012-0850ND
2015-05-044417-014-0920ND
2015-05-044417-016-1105ND
2015-05-044417-021-1035ND
2015-06-104417-018-1300ND
2015-08-034417-015-1035ND
2015-08-054417-001-1230ND
2015-08-054417-007-1000ND
2015-08-054417-010-0900ND
2015-08-054417-011-0835ND
2015-08-054417-012-0910ND
2015-08-054417-014-0820ND
2015-08-054417-015-1030ND
2015-08-054417-016-1110ND
2015-08-054417-018-0845ND
2015-08-054417-021-0940ND
2015-11-044417-007-0920ND
2015-11-044417-010-1020ND
2015-11-044417-012-1035ND
2015-11-044417-014-0835ND
2015-11-044417-015-0940ND
2015-11-044417-016-1055ND
2015-11-044417-018-0850ND
2015-11-044417-021-1000ND
2015-12-074417-011-0900ND
2016-02-034417-001-1055ND
2016-02-034417-007-1215ND
2016-02-034417-010-1010ND
2016-02-034417-011-0935ND
2016-02-034417-012-0950ND
2016-02-034417-014-0920ND
2016-02-034417-016-1035ND
2016-02-034417-018-0905ND
2016-02-034417-021-1200ND
2016-02-234417-015-0955ND
2016-05-024417-001-1225ND
2016-05-024417-007-1115ND
2016-05-024417-010-0955ND
2016-05-024417-011-0920ND
2016-05-024417-012-1010ND
2016-05-024417-014-0900ND
2016-05-024417-016-1150ND
2016-05-024417-018-0935ND
2016-05-024417-021-1045ND
2016-06-294417-015-0905ND
2016-08-044417-001-1145ND
2016-08-044417-007-1045ND
2016-08-044417-010-0840ND
2016-08-044417-011-0910ND
2016-08-044417-012-1000ND
2016-08-044417-014-0925ND
2016-08-044417-015-1115ND
2016-08-044417-016-1230ND
2016-08-044417-018-0855ND
2016-08-044417-021-1030ND
2016-11-094417-001-1035ND
2016-11-094417-007-1145ND
2016-11-094417-010-0950ND
2016-11-094417-011-0900ND
2016-11-094417-012-0935ND
2016-11-094417-014-0910ND
2016-11-094417-015-1055ND
2016-11-094417-016-1010ND
2016-11-094417-018-0920ND
2016-11-094417-021-1115ND
2017-02-154417-001-1110ND
2017-02-154417-010-1000ND
2017-02-154417-011-0930ND
2017-02-154417-012-0945ND
2017-02-154417-014-0900ND
2017-02-154417-015-1030ND
2017-02-154417-016-1050ND
2017-02-154417-018-0915ND
2017-02-154417-021-1015ND
2017-05-044417-001-1145ND
2017-05-044417-007-1025ND
2017-05-044417-010-0935ND
2017-05-044417-012-0905ND
2017-05-044417-014-0920ND
2017-05-044417-015-1045ND
2017-05-044417-016-1120ND
2017-05-044417-018-0845ND
2017-05-044417-021-1005ND
2017-05-314417-007-1020ND
2017-08-024417-001-1250ND
2017-08-024417-007-1150ND
2017-08-024417-010-1005ND
2017-08-024417-012-1020ND
2017-08-024417-014-1030ND
2017-08-024417-015-1210ND
2017-08-024417-016-1320ND
2017-08-024417-018-1045ND
2017-08-024417-021-1130ND
2017-10-304417-007-1005ND
2017-10-304417-010-0915ND
2017-10-304417-012-0940ND
2017-10-304417-014-0905ND
2017-10-304417-015-1040ND
2017-10-304417-018-0850ND
2017-10-304417-021-1120ND
2017-10-314417-001-1210ND
2017-10-314417-016-1150ND
2018-02-284417-001-1315ND
2018-02-284417-007-1135ND
2018-02-284417-010-1035ND
2018-02-284417-012-0955ND
2018-02-284417-014-0915ND
2018-02-284417-015-1155ND
2018-02-284417-016-1300ND
2018-02-284417-018-0900ND
2018-02-284417-021-1100ND
2018-03-154417-011-0915ND
2018-05-164417-011-0905ND
2018-05-164417-016-0930ND
2018-05-234417-001-1125ND
2018-05-234417-007-1040ND
2018-05-234417-010-0945ND
2018-05-234417-012-1000ND
2018-05-234417-014-0935ND
2018-05-234417-015-1025ND
2018-05-234417-018-0915ND
2018-05-234417-021-1100ND
2018-08-234417-001-1100ND
2018-08-234417-007-0955ND
2018-08-234417-011-0830ND
2018-08-234417-012-0915ND
2018-08-234417-014-0900ND
2018-08-234417-015-1015ND
2018-08-234417-016-1040ND
2018-08-234417-018-0840ND
2018-08-234417-021-0935ND
2018-11-054417-001-1150ND
2018-11-054417-007-1025ND
2018-11-054417-011-0930ND
2018-11-054417-012-0910ND
2018-11-054417-014-0835ND
2018-11-054417-015-1045ND
2018-11-054417-016-1125ND
2018-11-054417-018-0855ND
2018-11-054417-021-1005ND
2019-03-054417-007-1230ND
2019-03-054417-011-1050ND
2019-03-054417-012-1205ND
2019-03-054417-014-0915ND
2019-03-054417-018-0855ND
2019-03-204417-001-0945ND
2019-03-204417-015-1020ND
2019-03-204417-016-0850ND
2019-04-034417-001-1410ND
2019-04-034417-007-1140ND
2019-04-034417-014-1310ND
2019-04-034417-015-1215ND
2019-04-034417-016-1335ND
2019-04-034417-018-1245ND
2019-04-034417-021-1110ND
2019-04-084417-012-0950ND
2019-04-114417-011-1130ND
2019-07-184417-001-1025ND
2019-07-184417-007-0915ND
2019-07-184417-015-0930ND
2019-07-184417-016-0955ND
2019-07-184417-021-0850ND
2019-08-224417-011-0930ND
2019-08-224417-012-0955ND
2019-08-224417-014-0910ND
2019-08-224417-018-0855ND
2019-10-224417-001-1300ND
2019-10-224417-007-1150ND
2019-10-224417-011-1030ND
2019-10-224417-012-1105ND
2019-10-224417-014-0950ND
2019-10-224417-015-1210ND
2019-10-224417-016-1230ND
2019-10-224417-018-0930ND
2019-10-224417-021-1135ND