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EWG's Tap Water Database — 2021 UPDATE

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

Plainview WD

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.

 

55

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND110ND
2016ND110ND
2017ND140ND
2018ND70ND
2019ND30ND

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
2014-01-131401452-002-SOCSND
2014-01-131401427-002-SOCSND
2014-01-131401427-001-SOCSND
2014-01-131401452-001-SOCSND
2014-01-131401427-003-SOCSND
2014-01-171401784-002-SOCSND
2014-01-171401784-001-SOCSND
2014-01-281401B24-001-SOCSND
2014-01-281401B24-002-SOCSND
2015-01-131501687-002-SOCSND
2015-01-131501687-001-SOCSND
2015-01-131501859-001-SOCSND
2015-01-141501751-001-SOCSND
2015-01-141501751-002-SOCSND
2015-01-151501859-002-POCSND
2015-01-231501E11-002-SOCSND
2015-01-231501E11-003-SOCSND
2015-01-231501E11-001-SOCSND
2015-05-081505607-001-SOCSND
2015-10-0715105630001-SOCSND
2016-01-141601939-001-SOCSND
2016-01-141601939-003-SOCSND
2016-01-141601939-004-SOCSND
2016-01-141601939-002-SOCSND
2016-01-151601A31-002-SOCSND
2016-01-151601A31-001ND
2016-01-191601B54-001-SOCSND
2016-01-191601B54-002-SOCSND
2016-03-171603E00-001-SOCSND
2016-03-171603E00-002-SOCSND
2016-04-281604Q17-001-SOCSND
2017-01-03708178001-SOCND
2017-01-05708358001ND
2017-01-10708699001ND
2017-01-11709288001ND
2017-01-11708893004ND
2017-01-11709288002ND
2017-01-11708893002ND
2017-01-11708893003ND
2017-01-11708893001ND
2017-01-11708894001ND
2017-01-12708985001-SOCND
2017-01-307010126001ND
2017-01-317010228001ND
2017-04-197016312001ND
2018-06-017053391001ND
2018-06-077054095002ND
2018-06-077054095001ND
2018-06-147054988002ND
2018-06-157064984001ND
2018-06-157055114001ND
2018-06-157054988001ND
2019-06-197094510001ND
2019-06-197094510002ND
2019-07-027096164001ND