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EWG's Tap Water Database — 2021 UPDATE

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

WA of Great Neck North

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.

 

57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND110ND
2015ND120ND
2016ND110ND
2017ND120ND
2018ND30ND
2019ND80ND

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
2014-01-221401936-001-SOCSND
2014-01-291401C13-001-SOCSND
2014-05-071405482-001-SOCSND
2014-05-281405J52-001-SOCSND
2014-06-251406I69-001-SOCSND
2014-07-021407155-001-SOCSND
2014-07-151407B47-001-SOCSND
2014-07-151407B47-002-SOCSND
2014-07-231407G56-002-SOCSND
2014-07-231407G56-001-SOCSND
2014-08-141408873-001-POCSND
2015-03-041503285-001-SOCSND
2015-03-101503586-001-SOCSND
2015-04-221504M39-001-SOCSND
2015-05-131505961-001-SOCSND
2015-05-191505D38-001-SOCSND
2015-05-271505J24-001-SOCSND
2015-06-171506E39-001-SOCSND
2015-07-011507073-001-SOCSND
2015-07-081507543-001-SOCSND
2015-07-221507G03-001-SOCSND
2015-08-051508394-001ND
2015-08-121508A11-001-SOCSND
2016-06-221606M90-001-SOCSND
2016-06-221606M90-002-SOCSND
2016-07-061607368-001-SOCSND
2016-07-061607368-002-SOCSND
2016-07-131607999-001-SOCSND
2016-07-201607H11-002-SOCSND
2016-07-201607H11-001-SOCSND
2016-07-271607O22-001-SOCSND
2016-07-271607O22-002-SOCSND
2016-08-031608402-001-SOCSND
2016-08-101608B21-001-SOCSND
2017-08-017025952002-SOCSND
2017-08-027025952001-SOCSND
2017-08-107026786002ND
2017-08-107026786001ND
2017-08-167027412001-SOCSND
2017-08-177027471001-SOCSND
2017-08-177027471002-SOCSND
2017-08-237028018001ND
2017-08-247028538001ND
2017-08-247028089001ND
2017-08-247028089002ND
2017-12-217038763001ND
2018-03-217046046001ND
2018-09-197065376002ND
2018-09-197065376001ND
2019-08-1470101314001ND
2019-08-1470101314003ND
2019-08-1470101314002ND
2019-08-2170102284003ND
2019-08-2170102284002ND
2019-08-2870103083002ND
2019-08-2870103083001ND
2019-08-2870102284001ND