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EWG's Tap Water Database — 2021 UPDATE

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Di-n-butyl phthalate

Status: No national drinking water standard exists

 

Dibutyl phthalate is an additive used in many 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

5

states detected

23

utilities detected

107,000

people served

Health concerns for di-n-butyl phthalate

Harm to reproduction and child development

Hormone disruption

States reporting di-n-butyl phthalate in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Rhode Island467,053
Texas431,342
Washington65,592
Delaware82,882
New York1400
MORE
LESS

Filtering technologies that reduce di-n-butyl phthalate

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Activated Carbon

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Reverse Osmosis

Utilities with the highest amounts of di-n-butyl phthalate, 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Predator RidgePasco, WA1 of 213.7 ppb66
Outlaw CampCle Elum, WA1 of 43.85 ppb95
River Oaks Water SystemBurnet, TX1 of 33.00 ppb300
Madawaska Water DistrictMadawaska, ME1 of 22.60 ppb2,853
Goldenrod WSCRichmond, TX2 of 52.22 ppb85
Harris County Municipal Utility District 286Houston, TX2 of 61.42 ppb7,523
Montgomery County UD 3*Houston, TX1 of 31.20 ppb3,894
Clearbrooke Estates Pump DistrictDover, DE5 of 51.13 ppb603
Stevens Co. PUD - Halfmoon RanchosLoon Lake, WA1 of 31.07 ppb216
Suncreek Estates Section 1Magnolia, TX1 of 21.05 ppb342
Holiday Villages of LivingstonPflugerville, TX1 of 40.975 ppb1,756
Heights Country SubdivisionAustin, TX1 of 40.825 ppb105
Stratford Road EstatesMoses Lake, WA2 of 90.818 ppb272
Crystal Clear WSCSan Marcos, TX3 of 120.700 ppb16,488
Green Tank Irr District 11Walla Walla, WA2 of 30.680 ppb553
City of Alamo HeightsSan Antonio, TX1 of 140.571 ppb7,031
Stockley CenterGeorgetown, DE1 of 10.460 ppb749
Pomeroy City OfPomeroy, WA2 of 30.448 ppb1,395
Fouke WaterworksFouke, AR1 of 40.338 ppb940
Loring Development AuthorityLimestone, ME1 of 10.310 ppb180
Artesian Northern Sussex RegionalNewark, DE3 of 60.304 ppb5,511
Newport City OfNewport, WA1 of 10.291 ppb2,140
Tyler County Water Supply CorporationSpurger, TX1 of 180.283 ppb4,381
North Perry Ave Water DistrictBremerton, WA2 of 110.227 ppb18,818
Flying Dutchman Mobile Home Park 3Felton, DE1 of 10.210 ppb81
Deer MeadowsNewark, DE1 of 40.201 ppb447
South ShoresDover, DE1 of 10.170 ppb540
Barkers LandingMagnolia, DE2 of 150.164 ppb498
Church Creek*Newark, DE2 of 150.164 ppb7,665
Granada Mobile Home CourtMagnolia, DE1 of 10.160 ppb138
Combined Water SystemOak Harbor, WA1 of 10.155 ppb435
BurtonwoodNewark, DE1 of 40.151 ppb1,503
Teal PointDover, DE1 of 10.150 ppb96
Stevens Co. PUD - DenisonLoon Lake, WA1 of 20.132 ppb60
Nantucket Point(distribution-delaware)Berlin, MD3 of 170.105 ppb500
South Bethany*Newark, DE3 of 170.105 ppb15,771
Suez Water New Jersey LambertvilleToms River, NJ2 of 20.105 ppb3,960
Donovan/smith Mobile Home ParkPittsford, DE1 of 30.0900 ppb369
Avalon Woods Owners Association Inc.Georgetown, DE1 of 20.0750 ppb306
Portsmouth Water Works*Portsmouth, NH1 of 210.0714 ppb33,000
New Castle Water WorksPortsmouth, NH1 of 210.0714 ppb910
Heritage Green Health Care CenGerry, NY1 of 10.0670 ppb400
Fox Hunter Crossing*Newark, DE1 of 80.0629 ppb7,035
Artesian Water Company*Newark, DE7 of 1230.0433 ppb301,000
Collins/gowanda Correctional FacilitiesCollins, NY1 of 10.0410 ppb3,948
NJ Water Supply Authority Manasquan*Allenwood, NJ1 of 30.0367 ppb30
Deer Park City OfDeer Park, WA1 of 50.0362 ppb4,390
Wayne Township Division of WaterWayne, NJ2 of 30.0333 ppb55,000
N.j.d.w.s.c. - Wanaque North*Wanaque, NJ2 of 30.0333 ppb150
Kearny Water Department*Orange, NJ2 of 30.0333 ppb41,664

* 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 Di-n-butyl phthalate, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Crystal Clear WSCSan Marcos, TX3 of 120.700 ppb16,488
North Perry Ave Water DistrictBremerton, WA2 of 110.227 ppb18,818
South Bethany*Newark, DE3 of 170.105 ppb15,771
Portsmouth Water Works*Portsmouth, NH1 of 210.0714 ppb33,000
Artesian Water Company*Newark, DE7 of 1230.0433 ppb301,000
Bayonne Municipal Utilities Authority*Bayonne, NJ2 of 30.0333 ppb63,000
Kearny Water Department*Orange, NJ2 of 30.0333 ppb41,664
Wayne Township Division of WaterWayne, NJ2 of 30.0333 ppb55,000
City of Newport*Newport, RI2 of 1160.0172 ppb42,000
Portsmouth Water & Fire DistrictPortsmouth, RI2 of 1160.0172 ppb16,864

* 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 Di-n-butyl phthalate, but it likely has the contaminant in its water supply.