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National Drinking Water Database


Diethylphthalate in Delaware


Diethylphthalate is an industrial solvent used in many consumer products, particularly those containing fragrances; it may be present in perfume, cologne, deodorant, soap, shampoo, hand lotion, and other personal care products. [read more]

The Most Polluted Communities in Delaware

33 water utilities reported detecting Diethylphthalate in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Diethylphthalate level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Gander Woods
Dover, DE
421 of 511.48 ppb
(0 to 57.4 ppb)
2Willow Lake
Dover, DE
1741 of 610.08 ppb
(0 to 60.5 ppb)
3Meadows District
Dover, DE
10,1431 of 96.08 ppb
(0 to 54.73 ppb)
4Villas of Grandview
Wilmington, DE
1071 of 46.03 ppb
(0 to 24.1 ppb)
5Bethany Bay Ocean View
Dover, DE
27,1061 of 74.74 ppb
(0 to 33.2 ppb)
6Point Farm
Dover, DE
2131 of 54.3 ppb
(0 to 21.5 ppb)
7Wilmington Water Department
Wilmington, DE
140,0001 of 82.73 ppb
(0 to 21.84 ppb)
8Dover Meadows
Dover, DE
1351 of 42.7 ppb
(0 to 10.8 ppb)
9Pinewood Acres
Dover, DE
1,2001 of 52.47 ppb
(0 to 12.36 ppb)
10Beaver Creek
DE
3502 of 41.23 ppb
(0 to 3.93 ppb)

Health Based Limits for Diethylphthalate

StandardDescriptionLevel
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.1700 ppb
Health-Based Screening LevelA benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey.6000 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.30000 ppb

Violation Summary for Diethylphthalate in Delaware

There are no violations reported for this contaminant in Delaware