The Dark Waters story in Delaware
The Dark Waters story in Delaware represents among the most significant environmental and legal narratives in the state's modern history, centering on the contamination of water supplies and surrounding land with perfluoroalkyl and polyfluoroalkyl substances (PFAS), a class of synthetic chemicals linked to serious health consequences. Delaware's position within this broader national story is rooted in its geography, its industrial legacy, and the ongoing efforts of residents, regulators, and legal advocates to address contamination that accumulated over decades. The state's experience mirrors and in some respects predates the events dramatized in the 2019 film Dark Waters, which focused on E.I. du Pont de Nemours and Company, a corporation historically and deeply intertwined with Delaware's economic and cultural identity.
History
The history of chemical contamination in Delaware cannot be fully understood without first understanding the relationship between the state and DuPont, the chemical manufacturing giant founded on the banks of the Brandywine Creek near Wilmington in 1802. For nearly two centuries, DuPont was not merely an employer or an economic engine — it was woven into the fabric of Delaware society, influencing politics, philanthropy, education, and land use in ways that few corporations have managed anywhere in the United States. The company's headquarters in Wilmington made Delaware, in the eyes of many observers, virtually synonymous with DuPont's fortunes and decisions.
The chemical at the center of the Dark Waters narrative is perfluorooctanoic acid (PFOA), also known as C8, which DuPont used in the manufacturing of Teflon and other non-stick and water-resistant products. PFOA is a member of the PFAS family of chemicals, which are sometimes called "forever chemicals" because they do not break down naturally in the environment or in the human body. Internal documents later revealed through litigation suggested that DuPont had awareness of potential health risks associated with PFOA well before the public or regulators were informed, a pattern of conduct that became central to the legal battles that followed. Delaware residents and policymakers watched these revelations unfold with particular concern given the company's local prominence.[1]
The legal drama depicted in the film Dark Waters focused primarily on events in West Virginia and the work of attorney Robert Bilott, but the implications of the case extended directly into Delaware. As litigation and federal regulatory scrutiny intensified through the 2000s and into the 2010s, Delaware's state government and environmental agencies were compelled to examine PFAS contamination within their own borders. The Delaware Department of Natural Resources and Environmental Control (DNREC) undertook investigations into PFAS levels in water systems across the state, identifying sites of concern associated not only with industrial discharge but also with the use of aqueous film-forming foam (AFFF) at military installations and airports.[2]
Geography
Delaware's geography plays a direct role in the severity and spread of PFAS contamination within the state. As one of the smallest states in the nation and one with a significant portion of its land area sitting at or near sea level along the Delmarva Peninsula, Delaware has a particularly vulnerable water table. The state relies heavily on groundwater drawn from the Columbia aquifer and the Piney Point aquifer system for both public and private drinking water supplies, especially in Sussex County and Kent County. The relatively shallow depth of these aquifers and the sandy, permeable soils common in much of the state mean that contaminants introduced at the surface or through industrial processes can migrate into drinking water sources with relative speed.
The proximity of contaminated military sites to residential areas represents a particular concern in Delaware. Dover Air Force Base, located in central Delaware, has been identified as a site where AFFF — a firefighting foam that contains PFAS compounds — was used extensively over many decades in training exercises and emergency response situations. Investigations into groundwater near Dover Air Force Base have documented elevated PFAS levels, prompting ongoing remediation efforts coordinated between federal military authorities and state environmental agencies. Communities near the base have been among those most closely monitored for contamination exposure, and some private wells in surrounding areas were found to contain PFAS concentrations above levels considered safe for human consumption.[3]
Beyond military sites, industrial corridors along the Delaware River and Christina River in northern Delaware have historically been associated with chemical manufacturing and related activities. The concentration of industrial facilities in the Wilmington area and in communities such as New Castle has meant that working-class and lower-income neighborhoods in those areas have faced disproportionate exposure to a range of environmental hazards, including PFAS contamination. Environmental justice advocates in Delaware have highlighted these disparities as part of broader conversations about equitable enforcement of environmental regulations and the need for community-centered remediation strategies.
Culture
The cultural impact of the Dark Waters story on Delaware is difficult to separate from the broader cultural legacy of DuPont in the state. For generations, DuPont's presence shaped Delaware's self-image as a center of innovation and chemical industry. Company employees and their families comprised a substantial portion of the professional class in New Castle County, and DuPont-funded institutions — from hospitals to parks to educational foundations — became embedded features of civic life. When the legal and regulatory story around PFOA and PFAS began to reflect poorly on DuPont's internal practices, it prompted a reexamination not just of corporate conduct but of the cultural relationship between Delaware residents and the company many of them or their relatives had worked for or depended upon.[4]
Public awareness of PFAS contamination in Delaware has grown substantially in the years since the release of the Dark Waters film, which brought national attention to the broader issue of PFOA and PFAS exposure. Local journalism, particularly coverage from outlets such as Delaware Online and The News Journal, helped translate national legal and scientific developments into terms relevant to Delaware residents, documenting specific contaminated sites, reporting on regulatory actions, and giving voice to affected community members. This coverage contributed to a more informed and engaged public conversation about the state's environmental responsibilities and the obligations of industry operating within its borders.[5]
Economy
The economic dimensions of the Dark Waters story in Delaware are layered and complex. DuPont's eventual merger and reorganization — it combined with Dow Chemical Company in 2017 to form DowDuPont, which later split into separate companies — had significant economic consequences for Delaware, including job losses and changes to the corporate footprint in Wilmington. These economic shifts occurred against the backdrop of mounting legal liability related to PFAS contamination, as the company faced thousands of personal injury lawsuits as well as regulatory enforcement actions. The financial settlements and remediation costs associated with PFAS litigation have run into the billions of dollars nationally, representing one of the largest corporate environmental liability events in United States history.
For Delaware specifically, the economic consequences of PFAS contamination include costs borne by municipalities and utilities that must upgrade water treatment infrastructure to remove PFAS compounds from drinking water supplies. The installation of advanced filtration systems, including granular activated carbon and high-pressure membrane filtration technologies, represents significant capital expenditure for water utilities across the state. Some of these costs are recoverable through litigation or regulatory settlements, but others fall directly on ratepayers and taxpayers. The Delaware Division of Public Health and DNREC have worked to identify funding mechanisms, including federal infrastructure grants, to help communities address contamination without placing the full financial burden on residents already affected by the problem.[6]
Attractions
While the Dark Waters story is primarily a narrative of environmental harm and legal accountability rather than tourism, there are several locations in Delaware that hold significance for those interested in the history and context of this story. The Hagley Museum and Library, situated on the original DuPont gunpowder mills site along the Brandywine Creek, offers historical context about the founding and development of the DuPont company, helping visitors understand how a business begun in the early nineteenth century grew into a global chemical manufacturer whose products and byproducts shaped environmental policy well into the twenty-first century. The Hagley's collections include corporate records and artifacts that document DuPont's evolution across multiple eras of American industrial history.
The Delaware Museum of Nature and Science and various civic institutions in Wilmington have engaged with environmental topics, including water quality and chemical safety, through programming and exhibits designed to inform the public about environmental science and health. Community organizations working on environmental justice issues in Wilmington and in rural Sussex County represent another dimension of the story's living presence in Delaware, as activists and advocates continue to press for accountability, remediation, and stronger regulatory protections. For those who wish to understand how the events dramatized in Dark Waters play out at the local level, the work of these community groups offers the most direct window into the ongoing realities of PFAS contamination in Delaware.[7]