Hazardous Industrial Contaminants at Danvers Tannery

  hazardous-industrial-contaminants-at-danvers-tannery.html
  Science and Technology on Sun, Jul 05th, 2026 by The Boston Globe
      Locale: UNITED STATES

Industrial Contaminants and Environmental Impact

• Hexavalent Chromium: A highly toxic form of chromium used in the tanning process, known for its carcinogenic properties and ability to migrate through groundwater.

• Volatile Organic Compounds (VOCs): Including trichloroethylene (TCE) and tetrachloroethylene (PCE), commonly used as degreasers and solvents.

• Heavy Metals: Including lead and arsenic, which often co-occur in industrial sites of this era.

• Polychlorinated Biphenyls (PCBs): Legacy contaminants found in older electrical equipment and some industrial fluids.

The Remediation Roadmap

The contamination at the Danvers tannery site is a result of century-old tanning processes that relied heavily on hazardous chemicals. These substances have permeated the soil and migrated into the groundwater, creating a plume of contamination that necessitates aggressive intervention. The primary pollutants identified at the site include

The EPA has implemented a phased approach to address the contamination, moving from initial assessment to active remediation. The process is designed to isolate toxins and remove the most dangerous materials from the site to prevent further migration into residential areas or local waterways.

Public Health and Community Concerns

The proximity of the site to residential neighborhoods has raised significant concerns among Danvers residents. The primary risk involves the vapor intrusion of VOCs into nearby basements and the potential for contaminated groundwater to reach private wells, although most of the area has transitioned to municipal water systems.

• Vapor Intrusion: The risk that chemical vapors from the groundwater can seep through cracks in building foundations.

• Ecological Damage: The potential for contaminants to enter the local watershed, affecting flora and fauna in adjacent wetlands.

• Property Values: Concerns that the Superfund designation may negatively impact the market value of surrounding homes during the cleanup process.

• Long-term Safety: Questions regarding the permanency of the "cap" and whether future land use will be restricted.

Economic and Legal Implications

The financial burden of a Superfund site is often a point of contention. Under the "polluter pays" principle, the EPA seeks to recover costs from Potentially Responsible Parties (PRPs). However, when companies have long since gone bankrupt or ceased to exist, the federal government must step in with public funding.

• Cost Recovery: Efforts to identify current or former owners of the site who can be held liable for cleanup costs.

• Municipal Funding: The role of state grants and federal appropriations in bridging the funding gap.

• Future Redevelopment: Discussions on how the land can be repurposed—such as for green space or light commercial use—once the EPA certifies the site as safe.

• Compliance Monitoring: The ongoing cost of maintaining monitoring infrastructure for decades after the active cleanup concludes.