Plutonium up to 1,579 pCi/kg detected near Denver at Rocky Flats — Contamination levels remain as high as 40 years ago, BEFORE site ‘cleaned up’

Published: February 18th, 2012 at 9:27 pm ET
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Title: Study: Rocky Flats area still as contaminated with plutonium as 40 years ago
Source: Boulder Daily Camera
Author: Laura Snider, Camera Staff Writer
Date: 02/18/2012 05:51:11 PM MST

Driven by concerns that running the Jefferson Parkway across a strip of land along the eastern edge of the Rocky Flats Wildlife Refuge would stir up clouds of plutonium-laden dust, Boulder’s Rocky Mountain Peace and Justice Center commissioned a study last fall to gauge contamination levels in the area. [...] 

When federal officials said they planned to rely on testing of the area that was done in the past, Rocky Mountain Peace and Justice Center hired its own contractor to test the soils. But after being denied access to the refuge for testing, that contractor [Marco Kaltofen, president of Boston Chemical Data Corp.] was forced to take samples from just outside the fence along Indiana Street. [...]

Plutonium Levels

  • The newly released results show the area is as contaminated by radioactive plutonium now as it was 40 years ago, before the Rocky Flats nuclear weapons plant, which operated on that site, was closed and cleaned up
  • The results show that the plutonium contamination in the area is roughly the same now as it was four decades ago, according to Kaltofen
  • Kaltofen said the finding is surprising because he would have predicted that weathering over the decades, especially from the area’s stiff winds, would have dispersed the particles over time
  • Kaltofen’s results showed levels of plutonium isotopes in the area ranged from 0.019 picoCuries per gram of soil to 1.579 picoCuries per gram
  • Kaltofen said the background plutonium contamination in the West tends to be no more than 0.01 picoCuries per gram
  • U.S. Fish and Wildlife Service says the amount of plutonium contamination found in the soil in the right of way is not at unsafe levels

More from Kaltofen

  • “The material is still there; it’s still on the surface”
  • “Essentially, what people found back in the ’70s is still true”
  • “One explanation is that there’s as much material coming from the central part of the site that’s replacing any material that’s eroding or blowing away”

Read the report here

Rocky Flats Wildlife Refuge is located 16 miles northwest of Denver, Colorado

Published: February 18th, 2012 at 9:27 pm ET
By ENENews
Email Article Email Article
30 comments





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