ST. LOUIS — The federal government and companies responsible for nuclear bomb production and atomic waste storage sites in the St. Louis area in the mid-20th century were aware of health risks, spills, improperly stored contaminants and other problems but often ignored them, according to documents reviewed by The Associated Press. 

Decades later, even with much of the cleanup complete, the aftereffects haunt the region. Federal health investigators have found an increased cancer risk for some people who, as children, played in a creek contaminated with uranium waste. A grade school closed last year amid radiation concerns. A landfill operator is spending millions to keep underground smoldering from reaching nuclear waste illegally dumped in the 1970s. 

The AP examined hundreds of pages of internal memos, inspection reports and other items dating to the early 1950s, and found nonchalance and indifference to the risks of materials used in the development of nuclear weapons during and after World War II.

This story is part of an ongoing collaboration between The Missouri Independent, the nonprofit newsroom MuckRock and The Associated Press. The government documents were obtained by outside researchers through the Freedom of Information Act and shared with the news organizations.

Consider a 1966 government inspection report on a site in St. Louis County, which noted that “in a number of places along the roadway” material that later tested positive for radioactivity “appeared to have fallen from vehicles.” 

A follow-up inspection three months later found the material was still sitting on the road. The company, Continental Mining and Milling Co., said it was having trouble with the contractor — a lone man who used a shovel and broom to pick up the atomic waste and put it in a pickup truck. 

The company was not penalized. 

The AP review didn’t uncover evidence of criminal wrongdoing. What it did find were repeated instances where companies, contractors or the government could have addressed significant problems but didn’t. Dawn Chapman of the activist group Just Moms STL — a group pushing for cleanup and federal buyouts in an area near the airport — said the region “saved our country” with its work on the nuclear program but paid a terrible cost.

“We are a national sacrifice zone,” she said.

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