What is the water problem in Delaware?

Salt in Our Water — Saltwater Intrusion and Inundation in Delaware. It happens more frequently when it hasn't rained for a while, usually in the summer. People will call the Delaware Department of Natural Resources and Environmental Control to report a salty taste in their water.



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Though many humans don't suffer directly from water quality issues within the state, the natural world and all of the services that it provides are greatly impacted. In a report done by the Environmental Integrity Project, 97% of Delaware's waterways were deemed to be polluted.

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The 2023 Delaware River chemical spill was a failure of equipment that occurred on March 24, 2023 at the Trinseo Altuglas chemical plant in Bristol, Pennsylvania in the United States, which resulted in a leak of between 8,100 and 12,000 gallons of butyl acetate, ethyl acetate, and methyl methacrylate into Otter Creek, ...

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The chemicals released into the Delaware River include butyl acrylate, a flammable liquid used to manufacture paints, coatings, caulks, sealants, and adhesives. The same chemical was also released into a river in East Palestine, Ohio as a result of the Norfolk Southern train derailment.

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Delaware Water Gap formed through a process of headward erosion and stream capture. Deformation of the bedrock during Appalachian mountain-building episodes hundreds of millions of years ago created an area of structural weakness in the rock.

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Vibrio are bacteria that occur naturally in brackish waters such as the Delaware Bay, the Inland Bays and tributaries, especially during warm weather months.

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The Coastal Plain consists of sandy water-bearing units referred to as aquifers interlayered between non-water-bearing units. Wells constructed for domestic use range in depth from 15 feet to 500 feet. Yields are generally much greater than those obtained from the crystalline rocks of the Piedmont.

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Fish consumption advisories issued in early 2018 show that the concentration of chemical contaminants in fish caught from Delaware waterways continues to decline – which indicates water quality is improving throughout the state and also means that fish caught in many Delaware waters can be eaten with lowered concerns ...

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The dead zone on the river ran from Philadelphia to about 25 miles down river in Marcus Hook, Pennsylvania. That made it impossible for migratory fish like shad to breed. They would die on their journey upstream before they could lay their eggs in the upper Delaware. Once plentiful caviar and sturgeon also disappeared.

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The Delaware River Basin provides water to two major U.S. cities: Philadelphia, Pa. and New York City. All of Philadelphia's water comes from the Delaware and Schuylkill rivers, and roughly 50% of the water supply for New York City comes from the Delaware River Basin, even though NYC is not in the DRB.

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