High-Stakes Chemical Scare on Pleasant Street-This Day in Norwood History-June 27, 1980

Vaporous Chemical Cloud Ignites Fears of Regional Disaster as Firefighters Confront Corrosive Tanker Leak in South Norwood

. The unfolding emergency vividly evoked memories of the devastating, large-scale chemical train disaster that struck Somerville just two months prior. The localized crisis ground operations to a halt for approximately 30 minutes on Pleasant Street before quick, aggressive containment tactics by local emergency crews brought the hazardous chemical under control.

The dangerous incident began at approximately 3:40 p.m. inside the industrial yard of the E. & F. King Company located on Pleasant Street. During a routine unloading operation, a critical industrial valve on the massive rail tanker suddenly failed, allowing the concentrated liquid to escape. Upon hitting the open air, a spectacular and ominous cloud of thick white vapor instantly rose above the facility, drifting across the industrial corridor.

“I thought we had another Somerville,” admitted Norwood Fire Chief Thomas Barry, referring directly to the catastrophic April 3 chemical spill in Somerville, Massachusetts, where a punctured tank car leaking toxic phosphorus trichloride forced the mass evacuation of thousands of regional residents. Chief Barry warned that industrial-strength hydrogen peroxide is highly hazardous, capable of causing severe eye and lung irritation upon inhalation, as well as catastrophic chemical burns to human skin.

Fortunately, the rapid, decisive response of the Norwood Fire Department eliminated the immediate need to order a widespread evacuation of the heavily industrialized Pleasant Street corridor. Acting with great urgency, firefighters swarmed the scene with heavy hose lines, aggressively spraying massive volumes of water directly into the airborne chemical plume. The continuous water deluge successfully knocked down and neutralized the vaporous gas, rendering it completely harmless within ten minutes. Simultaneously, fire crews thoroughly washed down the contaminated ground surrounding the crippled rail car to prevent further reactions.

While a full-scale neighborhood evacuation was averted, emergency officials took no chances with public safety. Norwood Police immediately established a secure perimeter, blocking off all traffic on Pleasant Street from Dean Street to Morse Street. Across the roadway from the leaking tanker, employees at a local cabinet shop were issued strict shelter-in-place orders, commanding them to remain tightly sealed inside their building until the toxic vapor cloud had completely dissipated from the atmosphere.

Chief Barry estimated that approximately 500 gallons of the concentrated chemical leaked from the rail car before the situation was fully stabilized. Representatives from the E. & F. King Company braved the hazardous zone to physically remove the fractured hardware, successfully replacing the faulty valve with a secure unit. Chief Barry explained that while hydrogen peroxide itself is completely non-flammable, it represents a highly volatile oxidizer. In its concentrated industrial form, it can spontaneously ignite combustible materials—such as raw wood or structural timber—upon direct physical contact, making the proximity of the neighboring cabinet shop an incredibly dangerous variable.

According to company spokesperson Lincoln, the chemical is heavily distributed by the E. & F. King Company to numerous local municipalities and private commercial enterprises throughout the region, where it is utilized as a vital purifying agent for public drinking water supplies. The Dedham Water Company was specifically identified as one of the major regional utility systems reliant upon the Pleasant Street chemical hub.

Thanks to the flawless execution of modern hazardous materials tactics, the dangerous leak resulted in zero civilian or first responder injuries. However, the event marked the third major, alarming railroad tank car emergency to strike eastern Massachusetts in a mere three months, following the massive April spill in Somerville and a volatile propane tanker leak that completely shuttered the downtown district of Middleboro just ten days ago—ensuring that local officials will continue to look upon the regional rail lines with heightened anxiety.

Archival Note: This article has been dynamically reconstructed from the original public record print archives of the Patriot Ledger