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National Drinking Water Database


para-para DDE in Delaware


para-para DDE is a metabolite of DDT, a toxic and persistent insecticide banned in the U.S. and most other countries.

The Most Polluted Communities in Delaware

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

Ranked by highest average para-para DDE level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Autumn Woods Mobile Home Park
Wyoming, DE
751 of 10.3 ppb
(0.3 ppb)
2Artesian Water Company
Newark, DE
201,0001 of 68< 0.01 ppb
(0 to 0.02 ppb)

Health Based Limits for para-para DDE

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.0.1 ppb-10 ppb

Violation Summary for para-para DDE in Delaware

There are no violations reported for this contaminant in Delaware