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EWG's Tap Water Database — 2021 UPDATE

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Di(2-ethylhexyl) phthalate

Western Cass Water Supply Corporation

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.

 

15

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
20150.0714 ppb71ND - 0.500 ppb
2016ND10ND
2017ND10ND
2018ND50ND
2019ND10ND

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
2015-05-07Q15168850110.500 ppb
2015-05-07Q1516885012ND
2015-05-07Q1516885013ND
2015-05-07Q1516885014ND
2015-05-07Q1516885015ND
2015-09-15Q1535745005ND
2015-12-09Q1549101005ND
2016-05-24Q1620338009ND
2017-08-28Q1739001037ND
2018-03-08Q1809687011ND
2018-03-08Q1809687012ND
2018-03-08Q1809687013ND
2018-03-08Q1809687014ND
2018-03-08Q1809687015ND
2019-05-02Q1918236011ND