What happened in Delaware water?

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, ...



In late 2025 and throughout 2026, Delaware’s water quality has been the focus of a massive state-led cleanup and monitoring initiative. Historically, Delaware has struggled with PFAS (per- and polyfluoroalkyl substances) contamination in certain groundwater sources and high bacteria levels (like Vibrio) in the Delaware Bay due to agricultural runoff. In 2026, the Department of Natural Resources and Environmental Control (DNREC) began soliciting millions of dollars in new projects funded by the Infrastructure Investment and Jobs Act to replace lead service lines and install advanced filtration systems to remove "emerging contaminants." While the state’s public drinking water generally meets current EPA safety standards, there are ongoing "Swimming Advisories" for specific inland ponds and coastal areas during the summer months due to Blue-Green Algae blooms. For the 2026 resident, the story of Delaware water is one of transition—moving from a period of pollution-related "impaired waters" to a decade of heavy investment in clean-water infrastructure.

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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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The cause: a chemical spill from a Bucks County plant into a Delaware River tributary that feeds into a Philadelphia water processing facility.

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On March 24, 2023, the Trinseo Altuglas chemical plant in Bristol, Pennsylvania in the United States had an equipment failure that resulted in a leak of between 8,100 and 12,000 gallons of butyl acetate, ethyl acetate, and methyl methacrylate into Otter Creek, a tributary of the Delaware River.

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Searchers on Sunday found the body of a Paterson teenager who disappeared while swimming in the Delaware River three days earlier, the National Park Service announced.

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Delaware River Basin waterways are still polluted 50 years after the Clean Water Act | Opinion. Published: Oct. 30, 2022, 6:01 p.m.

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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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However, the most famous fact about the Delaware River is the famous crossing of it by George Washington in 1776 which helped him successfully surprise Hessian troops in New Jersey during the American Revolution.

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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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Enjoy a scenic, fun and refreshing 3 - 4 hour tube, raft, canoe or kayak ride down the Delaware River, which is the nation's most historic river and perfect for outdoor water sport activities.

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The Delaware River cleanup has been significantly advanced by Camden County, which has sharply reduced discharges from its combined sewer overflows (CSOs) — antiquated pipes designed to carry both stormwater and sewage but that often dump both into waterways during heavy rains.

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LIFEBLOOD OF THE NORTHEAST More than 17 million people get their drinking water from the Delaware River basin, including two of the five largest cities in the U.S.—New York City and Philadelphia.

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The Bucks County District Attorney's Office announced on Monday that their investigation concluded the skull belonged to Richard Thomas Alt. According to officials, a fisherman found a human skull in June 1986 on the banks of the Delaware River by the Morrisville Boat Ramp.

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