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EWG's Tap Water Database — 2021 UPDATE

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Di(2-ethylhexyl) phthalate

Johnson County SUD

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.

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.167 ppb31ND - 0.500 ppb
20150.111 ppb92ND - 0.500 ppb
2016ND70ND
2017ND30ND
2018ND80ND
2019ND50ND

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 Lab ID Result
2014-01-29Q1402807001ND
2014-02-26Q14063020020.500 ppb
2014-05-29Q1418453021ND
2015-02-03Q1504045008ND
2015-02-03Q1504045003ND
2015-04-16Q1514524009ND
2015-04-16Q1514524008ND
2015-04-16Q1514524007ND
2015-08-05Q15310430140.500 ppb
2015-08-05Q1531043011ND
2015-08-05Q1531043012ND
2015-08-05Q15310430130.500 ppb
2016-03-17Q1611268006ND
2016-03-17Q1611268005ND
2016-06-01Q1621680005ND
2016-06-01Q1621680017ND
2016-06-01Q1621680016ND
2016-06-01Q1621680006ND
2016-11-21Q1650944017ND
2017-02-14Q1706687001ND
2017-05-04Q1718433009ND
2017-08-16Q1736301013ND
2018-02-21Q1807323003ND
2018-02-21Q1807323008ND
2018-12-10Q1850236028ND
2018-12-10Q1850236024ND
2018-12-10Q1850236025ND
2018-12-10Q1850236026ND
2018-12-10Q1850236027ND
2018-12-10Q1850236029ND
2019-02-20Q1907529001ND
2019-02-20Q1907529028ND
2019-02-20Q1907529008ND
2019-02-20Q1907529021ND
2019-05-21Q1927429007ND