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EWG's Tap Water Database — 2021 UPDATE

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

Jericho Water District

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.

 

59

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND180ND
2016ND190ND
2017N/A00N/A
2018ND140ND
2019ND50ND

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
2014-02-031402020-001-POCSND
2014-06-231406G41-001-SOCSND
2014-08-201408E12-001-SOCSND
2015-05-041505161-002-SOCSND
2015-05-041505161-007-SOCSND
2015-05-041505161-003-SOCSND
2015-05-061505388-001-SOCSND
2015-05-061505388-003-SOCSND
2015-05-061505388-002-SOCSND
2015-06-021506274-004-SOCSND
2015-06-021506274-001-SOCSND
2015-06-021506274-005-SOCSND
2015-06-021506274-002-SOCSND
2015-06-021506274-003-SOCSND
2015-06-081506642-002-SOCSND
2015-06-081506642-001-SOCSND
2015-06-171506E34-004-SOCSND
2015-06-171506E34-003-SOCSND
2015-06-171506E34-005-SOCSND
2015-06-171506E34-001-SOCSND
2015-06-171506E34-002-SOCSND
2016-08-011608089-002-SOCSND
2016-08-011608089-001ND
2016-08-011608089-001-SOCSND
2016-08-151608D98-001-SOCSND
2016-08-161608F44-002-SOCSND
2016-08-161608F44-004-SOCSND
2016-08-161608F44-001-SOCSND
2016-08-161608F44-003-SOCSND
2016-09-121609809-001-SOCSND
2016-09-121609809-002-SOCSND
2016-09-261609M55-001-SOCSND
2016-09-281609O99-005-SOCSND
2016-09-281609O99-004-SOCSND
2016-09-281609O99-003-SOCSND
2016-09-301609R18-004-SOCSND
2016-09-301609R18-005-POCSND
2016-09-301609R18-003-SOCSND
2016-10-03701281002-SOCSND
2016-10-03701281001-SOCSND
2018-07-257059392002ND
2018-07-257059392001ND
2018-09-117064411001ND
2018-09-117064411002ND
2018-09-117064411003ND
2018-09-117064411005ND
2018-09-117064411006ND
2018-09-127064481001ND
2018-09-127064483001ND
2018-09-127064481002ND
2018-09-137064715003ND
2018-09-137054715001ND
2018-09-137064715002ND
2018-09-137064715001ND
2019-09-1170104532001ND
2019-09-2370105904004ND
2019-09-2370105904002ND
2019-09-2370105904001ND
2019-09-2370105904003ND