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
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Gander Woods Dover, DE | 42 | 1 of 5 | 11.48 ppb (0 to 57.4 ppb) |
| 2 | Willow Lake Dover, DE | 174 | 1 of 6 | 10.08 ppb (0 to 60.5 ppb) |
| 3 | Meadows District Dover, DE | 10,143 | 1 of 9 | 6.08 ppb (0 to 54.73 ppb) |
| 4 | Villas of Grandview Wilmington, DE | 107 | 1 of 4 | 6.03 ppb (0 to 24.1 ppb) |
| 5 | Bethany Bay Ocean View Dover, DE | 27,106 | 1 of 7 | 4.74 ppb (0 to 33.2 ppb) |
| 6 | Point Farm Dover, DE | 213 | 1 of 5 | 4.3 ppb (0 to 21.5 ppb) |
| 7 | Wilmington Water Department Wilmington, DE | 140,000 | 1 of 8 | 2.73 ppb (0 to 21.84 ppb) |
| 8 | Dover Meadows Dover, DE | 135 | 1 of 4 | 2.7 ppb (0 to 10.8 ppb) |
| 9 | Pinewood Acres Dover, DE | 1,200 | 1 of 5 | 2.47 ppb (0 to 12.36 ppb) |
| 10 | Beaver Creek DE | 350 | 2 of 4 | 1.23 ppb (0 to 3.93 ppb) |
Health Based Limits for Diethylphthalate
| Standard | Description | Level |
|---|---|---|
| EPA Human Health Water Quality Criteria | Water 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 Level | A 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 Level | A 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