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EWG's Tap Water Database — 2021 UPDATE

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Di(2-ethylhexyl) phthalate

San Juan Basin Authority

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.

MORE ABOUT THIS CONTAMINANT

 

49

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND80ND
2016N/A00N/A
2017ND50ND
2018ND50ND
2019ND240ND

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
2014-08-129590-015-1354ND
2014-08-129590-014-1338ND
2014-08-129590-006-1323ND
2014-08-129590-005-0900ND
2014-08-129590-003-1230ND
2014-09-239590-001-1250ND
2014-09-239590-002-1315ND
2015-08-249590-004-1319ND
2015-08-249590-003-1313ND
2015-08-249590-002-1308ND
2015-08-259590-015-0708ND
2015-08-259590-001-0816ND
2015-08-259590-014-0755ND
2015-08-259590-006-0805ND
2015-08-259590-005-0833ND
2017-02-099590-002-0850ND
2017-02-099590-003-0930ND
2017-02-099590-004-1000ND
2017-08-089590-005-1105ND
2017-08-089590-001-0820ND
2018-08-082920-004-1115ND
2018-08-082920-001-0845ND
2018-08-082920-002-0940ND
2018-08-082920-003-1030ND
2018-08-082920-005-1200ND
2019-01-095810-004-1009ND
2019-01-095810-002-1107ND
2019-01-095810-005-1650ND
2019-01-095810-003-1500ND
2019-01-095810-001-0911ND
2019-03-275810-003-0815ND
2019-03-275810-005-0845ND
2019-03-275810-015-1100ND
2019-03-275810-004-0800ND
2019-03-275810-001-0750ND
2019-04-165810-006-0910ND
2019-04-165810-015-1215ND
2019-04-165810-001-1035ND
2019-04-165810-005-1300ND
2019-04-165810-004-1125ND
2019-04-165810-003-1100ND
2019-07-095810-015-0900ND
2019-10-155810-003-1135ND
2019-10-155810-004-1025ND
2019-10-155810-001-0740ND
2019-10-155810-002-1110ND
2019-10-155810-014-0845ND
2019-10-155810-006-0945ND
2019-10-155810-005-1345ND