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EWG's Tap Water Database — 2019 UPDATE

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Di(2-ethylhexyl) phthalate

Salt Lake City Water System

Di(2-ethylhexyl) phthalate, or DEHP, is a softener added to PVC plastics. Phthalates are hormone disruptors that target the male reproductive system. Read More.

DEHP can cross the placenta and disrupt steroid hormone synthesis, and may lead to cancer. In laboratory animals, exposure to DEHP during pregnancy harms fetal developmental and causes abnormalities in the male reproductive tract. Human epidemiological studies show certain phthalates, especially DEHP, are associated with reduced anogenital distance in human male infants, which is a measure of adverse developmental effects in human male infants exposed prenatally to endocrine disrupting chemicals. DEHP may also interfere with signaling related to the timing of birth and may have adverse effects on the immune system.

 

103

Samples

5

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20122.77 ppb124ND - 15.3 ppb
20133.87 ppb122ND - 29.6 ppb
2014ND150ND
2015ND190ND
2016ND250ND
2017ND200ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 3 ppb

The EWG Health Guideline of 3 ppb for di(2-ethylhexyl) phthalate 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) 6 ppb

The legal limit for di(2-ethylhexyl) phthalate, established in 1992, was based on analytical detection limits at the time that the standard was set.

ppb = parts per billion

All test results

Date Result
2012-06-01ND
2012-07-17ND
2012-07-17ND
2012-07-20ND
2012-07-208.33 ppb
2012-07-31ND
2012-07-310.800 ppb
2012-07-318.84 ppb
2012-08-2915.3 ppb
2012-08-29ND
2012-08-29ND
2012-09-21ND
2013-01-2529.6 ppb
2013-01-2516.8 ppb
2013-03-29ND
2013-04-15ND
2013-04-15ND
2013-04-23ND
2013-05-10ND
2013-05-15ND
2013-05-15ND
2013-06-28ND
2013-06-28ND
2013-07-30ND
2014-01-10ND
2014-01-31ND
2014-01-31ND
2014-05-23ND
2014-05-30ND
2014-05-30ND
2014-06-03ND
2014-06-06ND
2014-06-11ND
2014-06-25ND
2014-06-25ND
2014-07-09ND
2014-07-09ND
2014-07-09ND
2014-07-11ND
2015-01-23ND
2015-01-30ND
2015-01-30ND
2015-02-27ND
2015-05-01ND
2015-05-08ND
2015-05-15ND
2015-06-19ND
2015-06-19ND
2015-06-19ND
2015-06-19ND
2015-06-30ND
2015-06-30ND
2015-06-30ND
2015-06-30ND
2015-06-30ND
2015-07-10ND
2015-07-10ND
2015-07-10ND
2016-01-08ND
2016-01-08ND
2016-01-15ND
2016-02-12ND
2016-02-26ND
2016-03-25ND
2016-05-19ND
2016-05-19ND
2016-06-03ND
2016-06-03ND
2016-06-10ND
2016-06-10ND
2016-06-10ND
2016-06-24ND
2016-06-24ND
2016-06-24ND
2016-06-28ND
2016-06-28ND
2016-07-01ND
2016-07-08ND
2016-07-08ND
2016-07-13ND
2016-07-29ND
2016-07-29ND
2016-07-29ND
2017-01-13ND
2017-01-16ND
2017-03-06ND
2017-03-24ND
2017-06-09ND
2017-06-12ND
2017-06-16ND
2017-06-19ND
2017-06-19ND
2017-06-21ND
2017-06-23ND
2017-06-30ND
2017-06-30ND
2017-07-14ND
2017-07-14ND
2017-07-21ND
2017-07-25ND
2017-08-08ND
2017-08-22ND
2017-08-23ND