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EWG's Tap Water Database — 2021 UPDATE

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Di(2-ethylhexyl) phthalate

Wailuku

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.

 

50

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND220ND
2015ND20ND
2016ND20ND
20170.0682 ppb221ND - 1.50 ppb
2018ND20ND
2019N/A00N/A

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
2014-02-24201402260746ND
2014-02-24201402260878ND
2014-02-24201402260912ND
2014-02-24201402260728ND
2014-02-25201402280114ND
2014-02-25201402280284ND
2014-02-25201402280305ND
2014-03-19201403210381ND
2014-03-19201403210383ND
2014-03-19201403210385ND
2014-03-27201403290120ND
2014-04-30201405020231ND
2014-04-30201405020320ND
2014-04-30201405020233ND
2014-04-30201405020232ND
2014-04-30201405020230ND
2014-04-30201405020229ND
2014-04-30201405020228ND
2014-04-30201405020227ND
2014-05-01201405030098ND
2014-05-01201405050005ND
2014-05-21201405230324ND
2015-06-16201506180519ND
2015-09-08201509100855ND
2016-09-12ND
2016-11-30ND
2017-01-31ND
2017-01-31ND
2017-01-31ND
2017-02-24ND
2017-02-24ND
2017-02-27ND
2017-02-27ND
2017-02-27ND
2017-05-19ND
2017-05-19ND
2017-08-301.50 ppb
2017-09-07ND
2017-09-07ND
2017-09-14ND
2017-09-14ND
2017-09-14ND
2017-09-14ND
2017-09-14ND
2017-09-14ND
2017-09-21ND
2017-10-25ND
2017-12-06ND
2018-01-30201801030999ND
2018-06-14201806150820ND