Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

2,3,7,8-TCDD (Dioxin)

City of Sacramento Main

Dioxins are contaminants released from chemical manufacturing, pulp and paper bleaching, and incineration of products that contain chlorine. 2,3,7,8-Tetrachlorodibenzodioxin (2,3,7,8-TCDD) is the most toxic chemical in the group of dioxins. Read More.

Dioxins are among the most toxic known environmental pollutants. As a class, dioxins are extremely toxic, persistent and bioaccumulative; these contaminants build up and are stored in fatty tissues and fluids, such as breast milk, and pass from the mother to the child. Most people are exposed to dioxins through the food they eat, primarily from meat, dairy, fish and eggs. In humans, dioxins are associated with cancer, birth defects, damage to the nervous and immune systems, altered metabolism, thyroid disruption, altered menstrual cycling and damage to the cardiovascular system.

 

110

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND150ND
2015ND30ND
2016ND400ND
2017ND120ND
2018N/A00N/A
2019ND400ND

ppt = parts per trillion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.0002 ppt

The EWG Health Guideline of 0.0002 ppt for 2,3,7,8-TCDD 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.

EPA Maximum Contaminant
Level (MCL) 0.03 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2014-02-050006-042-1140ND
2014-02-060006-023-1330ND
2014-02-190006-022-1045ND
2014-02-210006-055-1200ND
2014-02-260006-029-1020ND
2014-03-200006-052-1015ND
2014-03-250006-050-1030ND
2014-04-110006-015-0930ND
2014-04-170006-038-1310ND
2014-07-240006-015-0800ND
2014-07-240006-038-0924ND
2014-07-240006-055-0847ND
2014-07-280006-052-1000ND
2014-12-020006-017-1050ND
2014-12-030006-054-1045ND
2015-01-200006-016-0955ND
2015-02-100006-032-1025ND
2015-02-190006-017-1035ND
2016-04-190013-051-1115ND
2016-06-130013-010-1110ND
2016-08-090013-002-1052ND
2016-08-090013-008-0900ND
2016-09-080013-032-1239ND
2016-09-080013-034-1210ND
2016-09-080013-035-1107ND
2016-09-080013-037-1040ND
2016-09-080013-038-1115ND
2016-09-080013-040-1210ND
2016-09-080013-041-1135ND
2016-09-080013-056-1145ND
2016-09-120013-009-1035ND
2016-09-120013-018-1045ND
2016-09-120013-027-1145ND
2016-09-120013-030-1238ND
2016-09-120013-045-1308ND
2016-09-120013-052-1125ND
2016-09-120013-054-1153ND
2016-09-120013-055-1233ND
2016-09-190013-028-1207ND
2016-11-020013-002-0904ND
2016-11-020013-008-1145ND
2016-12-010013-027-1117ND
2016-12-010013-028-1138ND
2016-12-010013-030-1228ND
2016-12-010013-032-1031ND
2016-12-010013-034-1020ND
2016-12-010013-035-1100ND
2016-12-010013-037-0915ND
2016-12-010013-038-0945ND
2016-12-010013-040-1005ND
2016-12-010013-041-1045ND
2016-12-010013-045-1054ND
2016-12-010013-056-1005ND
2016-12-061228-009-0840ND
2016-12-061228-018-0920ND
2016-12-061228-052-1000ND
2016-12-061228-054-1015ND
2016-12-061228-055-0935ND
2017-03-071228-023-1112ND
2017-03-071228-042-0950ND
2017-03-201228-022-1122ND
2017-03-201228-029-1240ND
2017-04-031228-015-1025ND
2017-04-191228-017-1045ND
2017-06-051228-022-1134ND
2017-06-051228-023-1108ND
2017-06-051228-029-1204ND
2017-06-051228-042-1034ND
2017-07-181228-015-1122ND
2017-07-181228-017-1052ND
2019-02-209590-009-0920ND
2019-02-209590-017-0925ND
2019-02-209590-018-1020ND
2019-02-209590-027-1040ND
2019-02-209590-030-1115ND
2019-02-209590-040-1155ND
2019-02-209590-045-1155ND
2019-02-209590-051-1241ND
2019-02-209590-054-1330ND
2019-02-209590-056-1400ND
2019-02-219590-032-1000ND
2019-02-219590-034-1150ND
2019-02-219590-035-1310ND
2019-02-219590-037-1000ND
2019-02-219590-038-1050ND
2019-02-219590-041-1200ND
2019-02-219590-052-1250ND
2019-03-059590-042-1100ND
2019-05-079590-027-1255ND
2019-05-079590-032-1455ND
2019-05-079590-034-1340ND
2019-05-079590-035-1137ND
2019-05-079590-040-0955ND
2019-05-079590-041-1228ND
2019-05-079590-042-0940ND
2019-05-079590-045-1342ND
2019-05-079590-051-1041ND
2019-05-079590-052-1052ND
2019-05-079590-054-1150ND
2019-05-099590-008-1120ND
2019-05-099590-009-1026ND
2019-05-099590-017-1210ND
2019-05-099590-018-1251ND
2019-05-099590-030-1356ND
2019-05-099590-037-1230ND
2019-05-099590-038-1320ND
2019-05-299590-002-1402ND
2019-05-299590-056-1043ND
2019-08-149590-002-1055ND
2019-08-149590-008-0945ND