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EWG's Tap Water Database — 2021 UPDATE

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Di(2-ethylhexyl) phthalate

Calleguas Municipal Water District

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.

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND90ND
2016ND80ND
2017ND70ND
2018ND60ND
2019ND80ND

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
2014-03-214790-007-1125ND
2014-03-254790-007-1105ND
2014-04-034790-007-1445ND
2014-04-034790-007-1245ND
2014-04-114790-009-1010ND
2014-04-184790-011-1030ND
2014-05-074790-004-0915ND
2014-11-184790-008-1315ND
2015-02-194790-017-1415ND
2015-02-264790-004-1045ND
2015-10-214790-014-1020ND
2015-10-274790-016-1130ND
2015-10-274790-015-1300ND
2015-10-274790-012-1030ND
2015-11-044790-004-1340ND
2015-11-054790-004-1340ND
2015-11-054790-013-1140ND
2016-04-044790-004-0840ND
2016-04-054790-023-1000ND
2016-04-054790-022-0930ND
2016-04-064790-020-1305ND
2016-04-064790-021-1150ND
2016-04-064790-019-1030ND
2016-04-064790-018-1100ND
2016-11-074790-004-0745ND
2017-03-219590-004-1040ND
2017-04-179590-009-1245ND
2017-04-179590-008-1005ND
2017-04-189590-006-1130ND
2017-10-169590-004-0855ND
2017-11-069590-010-1120ND
2017-11-069590-007-1015ND
2018-02-139590-016-0945ND
2018-02-269590-004-0915ND
2018-03-079590-013-1320ND
2018-03-089590-012-1000ND
2018-03-089590-014-1330ND
2018-03-149590-015-1032ND
2019-01-294790-004-0930ND
2019-02-044790-018-0945ND
2019-02-054790-022-1020ND
2019-02-054790-023-0945ND
2019-02-074790-020-0840ND
2019-02-114790-021-0930ND
2019-02-194790-019-1100ND
2019-11-044790-004-0800ND