Know Your Environment. Protect Your Health.

Di(2-ethylhexyl) phthalate

Regional Water 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.

 

53

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND220ND
2020N/A00N/A
2021N/A00N/A
20220.146 ppb313ND - 1.56 ppb
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2019-05-08SOC 200531300ND
2019-05-28SOC 200533720ND
2019-05-28SOC 200533719ND
2019-05-28SOC 200533803ND
2019-05-28SOC 200533804ND
2019-05-28SOC 200533660ND
2019-05-28SOC 200533659ND
2019-05-29SOC 200533881ND
2019-05-29SOC 200533880ND
2019-05-29SOC 200533867ND
2019-05-29SOC 200533868ND
2019-08-26SOC 200546198ND
2019-08-26SOC 200546200ND
2019-08-26SOC 200546197ND
2019-08-27SOC 200546267ND
2019-08-27SOC 200546268ND
2019-08-27SOC 200546302ND
2019-08-27SOC 200546303ND
2019-08-28SOC 200546738ND
2019-08-28SOC 200546737ND
2019-08-28SOC 200546736ND
2019-08-28SOC 200546553ND
2022-07-11S300210659 300210665ND
2022-07-11S300210651 3002106571.42 ppb
2022-07-11S300210156 300210162ND
2022-07-11S300210822 300210828ND
2022-07-11S300210164 300210170ND
2022-07-12S300211086 300211092ND
2022-07-12S300211068 300211074ND
2022-07-12S300211076 300211082ND
2022-07-13S300212413 300212419ND
2022-07-13S300212421 300212427ND
2022-07-14S300212957 300212963ND
2022-10-17S300258850 300258856ND
2022-10-17300258850 300258856BND
2022-10-17300258858 300258864B1.56 ppb
2022-10-17S300258858 3002588641.56 ppb
2022-10-18S300258921 300258927ND
2022-10-18300258913 300258919BND
2022-10-18300258921 300258927BND
2022-10-18300259358 300259364BND
2022-10-18S300259358 300259364ND
2022-10-18S300259350 300259356ND
2022-10-18300259350 300259356BND
2022-10-18S300258913 300258919ND
2022-10-19S300259930 300259938ND
2022-10-19300259930 300259938BND
2022-10-19300259940 300259946BND
2022-10-19S300259940 300259946ND
2022-10-19S300260499 300260505ND
2022-10-19300260499 300260505BND
2022-10-19300260507 300260513BND
2022-12-06S300281400 300281406ND