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EWG's Tap Water Database — 2021 UPDATE

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Dimethyl phthalate

Status: No national drinking water standard exists

 

Dimethyl phthalate is an additive used in plastics and other consumer products. As a group, phthalates are associated with hormone disruption. Read More.

Phthalates are synthetic chemicals that are added to hard plastics to make them soft and malleable. Phthalates can be found in everyday consumer products such as carpets, paints, glues, wall coverings, tablecloths, furniture upholstery, shower curtains, garden hoses, toys, shoes, automobile upholstery, food packaging and medical products. Exposure to phthalates has been linked to respiratory health problems, asthma and allergies in infants and children, and changes in reproductive system development in baby boys. The National Toxicology Program classifies a commonly used phthalate, called di(2-ethylhexyl) phthalate or DEHP, as "reasonably anticipated to be a human carcinogen."

2017-2019:

FOUND

3

states detected

5

utilities detected

36,123

people served

Health concerns for dimethyl phthalate

Hormone disruption

States reporting dimethyl phthalate in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Texas124,153
Arkansas311,597
Oklahoma1373
MORE
LESS

Filtering technologies that reduce dimethyl phthalate

carbon filter icon

Activated Carbon

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Reverse Osmosis

Utilities with the highest amounts of dimethyl phthalate, 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Mena Water*Mena, AR1 of 140.246 ppb7,784
Acorn Rural WaterNot Submitted, AR1 of 140.246 ppb1,975
Freedom WaterMena, AR1 of 140.246 ppb1,838
Leflore County Rural Water District #17Hodgen, OK1 of 140.246 ppb373
Clwsc Canyon Lake Shores*Canyon Lake, TX1 of 440.0477 ppb24,153
NJ Water Supply Authority Manasquan*Allenwood, NJ1 of 40.00750 ppb30

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Dimethyl phthalate, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Clwsc Canyon Lake Shores*Canyon Lake, TX1 of 440.0477 ppb24,153

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Dimethyl phthalate, but it likely has the contaminant in its water supply.