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EWG's Tap Water Database — 2021 UPDATE

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

Doney Park Water

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.

 

28

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
2015ND120ND
2016ND20ND
2017N/A00N/A
2018ND140ND
2019N/A00N/A

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
2015-03-17201503180283SCND
2015-03-17201503180283SBND
2015-03-17201503180283SAND
2015-03-17201503180281SCND
2015-03-17201503180281SBND
2015-03-17201503180281SAND
2015-04-28201504290206SCND
2015-04-28201504290206SBND
2015-04-28201504290206SAND
2015-04-28201504290204SCND
2015-04-28201504290204SBND
2015-04-28201504290204SAND
2016-04-05201604060136SND
2016-09-29201609300018SND
2018-04-17201804180328SEND
2018-04-17201804180328SDND
2018-04-17201804180328SCND
2018-04-17201804180328SBND
2018-04-17201804180328SAND
2018-06-13201806140292SND
2018-08-01201808020182SCND
2018-08-01201808020182SBND
2018-08-01201808020182SAND
2018-08-01201808020179SCND
2018-08-01201808020179SBND
2018-08-01201808020179SAND
2018-08-28201808290307SND
2018-10-30201810310051SND