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EWG's Tap Water Database — 2021 UPDATE

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

City of Chandler

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.

 

152

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
2015ND670ND
2016ND10ND
2017ND60ND
2018ND760ND
2019ND20ND

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
2015-01-13550-38296-1ND
2015-01-13550-38298-1ND
2015-01-13550-38301-1SND
2015-01-15550-38538-1ND
2015-01-15550-38540-1SND
2015-01-15550-38544-1ND
2015-01-20550-38732-1ND
2015-01-20550-38733-1ND
2015-01-20550-38736-1ND
2015-01-22550-38880-1ND
2015-01-22550-38882-1ND
2015-01-22550-38883-1ND
2015-01-26550-39002-1ND
2015-01-26550-39006-1ND
2015-01-26550-39007-1ND
2015-01-27550-39062-1ND
2015-01-27550-39064-1ND
2015-01-27550-39066-1ND
2015-01-29550-39227-1ND
2015-01-29550-39230-1ND
2015-01-29550-39232-1ND
2015-02-02550-39342-1ND
2015-02-02550-39345-1SND
2015-02-02550-39348-1ND
2015-02-03550-39458-1ND
2015-02-03550-39459-1SND
2015-02-03550-39460-1ND
2015-04-13550-43129-1ND
2015-04-13550-43130-1SND
2015-04-13550-43131-1ND
2015-04-13550-43132-1SND
2015-04-15550-43275-1SND
2015-04-15550-43280-1ND
2015-04-22550-43628-1SND
2015-07-14550-47832-1SND
2015-07-14550-47832-3SND
2015-07-14550-47832-5SND
2015-07-14550-47832-7ND
2015-07-15550-47927-1SND
2015-07-15550-47927-3SND
2015-07-15550-47927-5SND
2015-07-16550-48011-1SND
2015-07-16550-48011-3ND
2015-07-16550-48011-5SND
2015-07-16550-48011-7SND
2015-07-16550-48011-9ND
2015-07-22550-48251-1SND
2015-07-22550-48251-3SND
2015-07-22550-48251-5SND
2015-07-22550-48251-7SND
2015-07-23550-48380-1SND
2015-07-23550-48380-3SND
2015-07-23550-48380-5SND
2015-07-23550-48380-7SND
2015-07-27550-48489-1ND
2015-07-27550-48489-3SND
2015-07-27550-48489-5SND
2015-07-27550-48489-7SND
2015-07-29550-048582-1SND
2015-07-29550-48582-3SND
2015-11-03550-53731-2TND
2015-11-03550-53731-3TND
2015-11-03550-53731-6TND
2015-11-05550-53917-1TND
2015-11-05550-53917-3ND
2015-11-05550-53917-5TND
2015-11-18550-54553-1TND
2016-12-29550-75055-1SND
2017-06-12550-84299-1 SOCND
2017-06-19550-84660-1 SOCND
2017-06-28550-85097-1 SOCND
2017-08-30550-88911-1SOCND
2017-08-31550-89003-1SOCND
2017-10-12550-91428-5 SOCND
2018-01-23550-96737-1 SOCND
2018-01-23550-96737-2 SOCND
2018-01-23550-96737-3 SOCND
2018-01-23550-96737-4 SOCND
2018-01-24550-96821-1 SOCND
2018-01-24550-96821-2 SOCND
2018-01-24550-96821-3 SOCND
2018-01-24550-96821-4 SOCND
2018-01-24550-96821-5 SOCND
2018-01-25550-96914-1 SOCND
2018-01-25550-96914-2 SOCND
2018-01-25550-96914-3 SOCND
2018-01-25550-96914-4 SOCND
2018-01-25550-96914-5 SOCND
2018-01-29550-97023-1 SOCND
2018-01-29550-97023-2 SOCND
2018-01-29550-97023-3 SOCND
2018-01-29550-97023-4 SOCND
2018-01-30550-97100-2ND
2018-01-30550-97100-3 SOCND
2018-01-30550-97100-4 SOCND
2018-01-31550-97179-1 SOCND
2018-02-01550-97256-1 SOCND
2018-02-01550-97256-2 SOCND
2018-02-01550-97256-3 SOCND
2018-02-01550-97256-4 SOCND
2018-03-05550-98895-1 SOCND
2018-03-05550-98895-2 SOCND
2018-04-17550-101375-2 SOCND
2018-04-17550-101375-3ND
2018-04-18550-101450-2 SOCND
2018-04-18550-101450-4 SOCND
2018-04-19550-101546-2ND
2018-04-20550-101629-1 SOCND
2018-05-17550-103120-2 SOCND
2018-06-22550-104849-1ND
2018-06-28550-105094-2 SOCND
2018-06-28550-105094-3 SOCND
2018-07-23550-106554-1ND
2018-07-23550-106554-2ND
2018-07-23550-106554-3 SOCND
2018-07-23550-106554-4 SOCND
2018-07-23550-106554-5ND
2018-07-23550-106554-6 SOCND
2018-07-24550-106603-1ND
2018-07-24550-106603-2ND
2018-07-24550-106603-3ND
2018-07-24550-106603-4 SOCND
2018-07-24550-106603-5ND
2018-07-25550-106658-1ND
2018-07-25550-106658-2 SOCND
2018-07-25550-106658-3 SOCND
2018-07-25550-106658-4 SOCND
2018-07-25550-106658-5ND
2018-07-25550-106658-6ND
2018-07-26550-106757-1 SOCND
2018-07-26550-106757-2 SOCND
2018-07-26550-106757-3 SOCND
2018-07-26550-106757-4 SOCND
2018-07-26550-106757-5 SOCND
2018-07-26550-106757-6ND
2018-07-30550-106907-1 SOCND
2018-07-30550-106907-2 SOCND
2018-07-30550-106907-3ND
2018-07-30550-106907-4ND
2018-07-30550-106907-5 SOCND
2018-08-21550-108374-1ND
2018-10-17550-111920-1ND
2018-10-18550-111989-3 SOCND
2018-10-22550-112146-2ND
2018-10-22550-112146-4ND
2018-10-23550-112224-1ND
2018-10-24550-112296-1ND
2018-10-24550-112296-2ND
2018-10-25550-112373-1ND
2018-10-31550-112584-1 SOCND
2019-03-25201903250345SND
2019-07-22201907220239SND