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National Drinking Water Database


para-para DDD in Delaware


para-para DDD is an insecticide similar to DDT, and also forms as a metabolite of DDT, a toxic and persistent insecticide banned in the U.S. and most other countries.

The Most Polluted Communities in Delaware

1 water utilities reported detecting para-para DDD 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 DDD level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Artesian Water Company
Newark, DE
201,0001 of 83< 0.01 ppb
(0 to 0.02 ppb)

Health Based Limits for para-para DDD

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.<0.01 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.0.1 ppb-10 ppb

Violation Summary for para-para DDD in Delaware

There are no violations reported for this contaminant in Delaware