Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

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

Goodyear Water Department

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND100ND
2017N/A00N/A
2018ND40ND
2019ND110ND

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
2016-06-13201601260059SND
2016-06-13201601260058SND
2016-06-13201601260057SND
2016-06-13201601260056SND
2016-06-13201601260055SND
2016-11-09201601260080SND
2016-11-09201601260079SND
2016-11-09201601260073SND
2016-11-09201601260072SND
2016-11-09201601260071SND
2018-03-19201803200264SND
2018-05-14201805150445S SOND
2018-08-15201808170337SND
2018-12-10201812110404SND
2019-03-18201903190404SND
2019-03-18201903190400SND
2019-03-18201903190393SND
2019-03-18201903190371SND
2019-06-04201906050239SND
2019-08-29201908300151SND
2019-08-29201908300144SND
2019-08-29201908300107SND
2019-08-29201908300090SND
2019-08-29201908300081SND
2019-11-21201911220333SND