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National Drinking Water Database


Acenaphthene in Delaware


Acenaphthene is a polycyclic aromatic hydrocarbon (PAH) released from fossil fuel combustion and petroleum refining; it is also used as an intermediate in the manufacture of dyes, plastics and pharmaceuticals, and as an insecticide and fungicide.

The Most Polluted Communities in Delaware

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

Ranked by highest average Acenaphthene level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Autumn Woods Mobile Home Park
Wyoming, DE
751 of 20.05 ppb
(0 to 0.1 ppb)
2Artesian Water Company
Newark, DE
201,0001 of 73< 0.01 ppb
(0 to 0.17 ppb)

Health Based Limits for Acenaphthene

StandardDescriptionLevel
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.400 ppb
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.670 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.2000 ppb

Violation Summary for Acenaphthene in Delaware

There are no violations reported for this contaminant in Delaware