The wartime race to produce synthetic rubber left a toxic legacy in the South Bay

A sign warns against entering property at the 280-acre Superfund site near the corner of Del Amo Blvd. and Vermont Ave. in Harbor Gateway in this July 2008 Daily Breeze file photo. (Robert Casillas / Staff Photographer)

Japan’s surprise attack on Pearl Harbor in Hawaii on Dec. 7, 1941, was not an isolated act of war. Instead, it was just one part of a series of coordinated military attacks on Western colonies and outposts in the Far East on that day.

Japanese forces also attacked Indochina as Southeast Asia then was known. This included  Vietnam, Myanmar, Thailand, Laos, Cambodia, and parts of Malaysia, as well as American outposts in Guam, Hong Kong and the Philippines.

As a result, by mid-1942, Japan controlled all the rubber growing, production and shipping operations in the region, which accounted for more than 90 percent of the world’s supply. Rubber was key to wartime operations, not just for vehicle tires but for ships, airplanes and just about every other implement used in warfare.

1943 classified ad calls for cafeteria help wanted at the new Goodyear synthetic rubber plant, which had opened as the government-owned U.S. Synthetic Rubber plant earlier that summer. (Credit: Daily Breeze, Sept. 28, 1943, Page 7)

The Allies had stockpiles of rubber that would last for roughly 18 months, not nearly enough time to get any kind of natural rubber production started. They were in a real bind.

They found the answer in the newly rising industry of synthetic rubber production. A loosely  organized, rather desperate plan implemented beginning in 1942 resulted in the construction of more than 50 factories doing just that over the next 30 months in the U.S. alone.

The effort succeeded. The amount of synthetic rubber produced rose from next to nothing to more than 900,000 pounds a year. Wartime crisis averted, but the roots of another slower-burning problem had begun to take hold.

As it turns out, the production of synthetic rubber relies upon three toxic ingredients: butadiene, styrene and lamp black.

Butadiene, an oil-based substance that turns out to be highly carcinogenic, styrene, which causes nerve respiratory and eye damage in large concentrations, and lamp black, the production of which coated towns near factories with black soot.

The problems were more severe in industrial areas such as Akron, Ohio, known for its rubber production. But it turns out the South Bay was not immune.

A synthetic rubber plant quickly was put into operation just east of the Torrance city limit, on Del Amo Blvd. between Normandie and Vermont avenues in the Los Angeles city strip.

Daily Breeze, May 5, 1983, Page 1. (Credit: Daily Breeze archives)

The U.S. Synthetic Rubber Co. opened on the 280-acre site in the summer of 1943. It was soon  being operated by Goodyear Tire & Rubber and later Dow Chemical, with Shell Oil taking control of it in 1955. Shell closed the plant in 1966, and later demolished it.

The plant’s demolition still left six unlined pits and three unlined ponds on the site into which waste products had been deposited over the decades. They later were covered with soil, which did not solve the problem.

The property then was sold to development firm Cabot, Cabot & Forbes, who resold it to Cadillac Fairview/California, who owned the property when it was placed sixth on the U.S. Environmental Protection Agency’s Superfund list of the most dangerous sites in the U.S.

The high danger ranking was based mostly on its proximity to adjoining homes. Residents living in nearby residential neighborhoods complained of acrid fumes and burning eyes, and feared for the health of their children.

Daily Breeze, Nov. 30, 1983, Page 3. (Credit: Daily Breeze archives)

They expressed concern that the site was not sufficiently fenced off at the time, which posed another physical danger.

In addition, there existed the high potential for harmful chemicals from the unlined waste pit to leak out and contaminate underground water aquifers.

Once work began in earnest on remediating the site, its high negative rating began to fall. By 1984, it was number 76 on the Superfund list of most hazardous sites.

But cleanup still takes time. As of October 2023, the site still is undergoing long-term soil rehabilitation, according to the EPA. Corporate office parks have been built nearby, but the original narrow strip of polluted land remains empty.

The Del Amo Superfund site is the wide green strip of empty land at center between Normandie and Vermont avenues in this view looking west. Del Amo Blvd. along left of site is closed off. 2026 image. (Credit: Google Earth)

Sources:

Daily Breeze archives.

United States Environmental Protection Agency website.

The Wishing Tree Park under construction on Thursday, August 18, 2022. A street of homes was demolished near the Del Amo Superfund site and the 8.5 acres languished for over 25 years before being converted into the park thanks to the efforts of a local non-profit group, the Del Amo Action Committee. (Photo by Brittany Murray, Press-Telegram/SCNG)
Map shows Del Amo Superfund site location. Daily Breeze, May 5, 1983, Page 1. (Credit: Daily Breeze archives)

Published by Sam Gnerre

I worked for the Daily Breeze for 33 years as its archivist and librarian. In 2009, I started this South Bay History blog in order to explore interesting historical people, places and events in the South Bay and Harbor Area. I post a new article every week.

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