Drilling for Radioactive Gas?

  • The Rulison device at insertion, 1969 (Photo courtesy of the US Department of Energy Digital Photo Archive)

There are proposals to drill for oil
and gas very close to the site of a
nuclear explosion. The device was
exploded underground in western Colorado
40 years ago this month. Natural gas
from wells near the site could be
distributed throughout the U.S. Some
experts are concerned the natural gas
could be radioactive. Conrad Wilson
reports regulators could allow drilling
closer to the blast site in the next
couple of years:

Transcript

There are proposals to drill for oil
and gas very close to the site of a
nuclear explosion. The device was
exploded underground in western Colorado
40 years ago this month. Natural gas
from wells near the site could be
distributed throughout the U.S. Some
experts are concerned the natural gas
could be radioactive. Conrad Wilson
reports regulators could allow drilling
closer to the blast site in the next
couple of years:

On September 10, 1969 the Atomic Energy Commission detonated a 40-kiloton
nuclear bomb a mile and a half under ground. It was called Project Rulison. The
bomb was three times the size of the one dropped on Hiroshima.

The idea was to find peaceful uses for nuclear weapons. The federal government
hoped that nukes could be used to free up pockets of gas trapped below.

(sound of video)

The nuke did free up gas.

The government tested the gas by flaring it – burning it in the open – over the next
year. They discovered the natural gas was radioactive.

Marian Wells is a long time resident of Rulison. Her parent’s home was close to
the detonation site and the gas flares. Both of her parents died of cancer. So did
many of her neighbors.

She spoke before the Colorado Oil and Gas Conservation Commission.

“My parents were given no notice that you were flaring contaminated gas. And
yet both my parents died of cancer. Cancer is prevalent in this area. And yes, no
one has studied those cause and effect. You don’t really care about us.”

There’s been no government studies connecting cancer and the Rulison blast,
but the community remains fearful and suspicious.

Gas drilling is allowed as close as three miles of the blast site. That natural gas
is piped around the country.

Now some companies say they want to drill for natural gas within a half mile of
ground zero.

The Department of Energy maintains that, for the most part, the gas near the
blast site is safe, but there’s some uncertainly.

Jack Craig heads up the Rulison site for the Department of Energy. Craig says
drilling closer to the nuclear blast site should move forward slowly.

“What we’re saying is do it in a sequential manor. So that you come in slowly
testing the wells as you go in for contaminants – specifically tritium – and, if you
don’t find anything, move in closer.”

Tritium is a radioactive substance produced by the blast. Breathing tritium can
cause cancer.

Chris Canfield works on environmental protection for the state oil and gas
commission. He heads up an annual audit on the Rulison site.

Canfield: “Simply put, everything that’s coming out of the ground is being
sampled, being analyzed.”

Wilson: “If someone were to come to you and say they want to drill within the
half mile of the Rulison blast site, would you say that’s safe?”

Canfield: “I wouldn’t really know at this time.”

Canfield says that the state would require a special hearing before it would
approve any drilling permits any closer.

Oil and gas commissioner Jim Martin says there are still too many unanswered
questions to allow drilling that close to the blast site.

“There are significant information gaps and that makes is very difficult to really
understand the risks either to the workers or to the public who live within some
distance of the drill site.”

Martin says he understands why people are skeptical. He says the United States
has made a lot of mistakes with radioactive materials. Navajo uranium miners
got cancer because of radio exposure. People downwind of above ground
detonations suffered. Martin says skepticism is warranted.

“So it’s not unreasonable to ask some pretty tough questions of the federal
government before we go further into that half mile perimeter and produce more
gas.”

Gas that could be burned to heat homes across the U.S.

For The Environment Report, I’m Conrad Wilson.

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Turbines and Bats: A Deadly Combo

  • Many bats are being killed by wind turbines (Photo courtesy of the US Fish and Wildlife Service)

The wind turbine industry has made
changes to reduce the number of birds killed
by the spinning blades. But scientists are
finding that more bats are being killed.
Rebecca Williams reports one research team
thinks it now knows why:

Transcript

The wind turbine industry has made
changes to reduce the number of birds killed
by the spinning blades. But scientists are
finding that more bats are being killed.
Rebecca Williams reports one research team
thinks it now knows why:

It’s been a mystery why bats are getting killed by wind turbines. They’re
usually great at avoiding collisions because they sense moving objects
even better than still ones.

A team from the University of Calgary looked at dead bats near
turbines. They found that 90% of the bats had internal bleeding.

Erin Baerwald is the lead author of the study. She says there’s a sudden
drop in pressure near the tips of the turbine blades. And when bats fly
close enough, the pressure drop makes their lungs over-expand and
burst. She thinks the bats are attracted to the turbines.

“Maybe they see these tall turbines as trees.”

That’s because most of the bats that are getting killed are tree roosting
bats.

Baerwald says researchers are looking at ways to change turbines to
avoid killing bats.

For The Environment Report, I’m Rebecca Williams.

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Combating Inland Invasives

  • Eurasian Watermilfoil is one of the non-native species that has invaded inland lakes. (Photo courtesy of National Park Service)

Invasive plants, fish and other creatures are threatening many inland lakes. Environmentalists and property owners are trying to stop the spread…before the invaders dramatically alter the smaller bodies of water. The Great Lakes Radio Consortium’s Ann-Elise Henzl reports:

Transcript

Invasive plants, fish and other creatures are threatening many inland
lakes. Evironmentalists and property owners are trying to stop the
spread…before the invaders dramatically alter the smaller bodies of
water. The Great Lakes Radio Consortium’s Ann-Elise Henzl reports:


It’s strange to think that plants and animals from Europe, Asia and Africa
are living in small lakes in the Midwest. Boaters have taken invaders
there…after picking them up in the Great Lakes.


The big lakes are home to more than 160 aquatic invasive species,
including Eurasian Watermilfoil. The stringy plant grows in thick
clusters that get up to 12 feet tall.


“I have seen lakes where if you fell out of the boat in these massive
weeds and you weren’t wearing a life jacket, I don’t care how good a
swimmer you are, you would sink. You can not struggle your way
through these thick entanglements of weeds.”


Ted Ritter leads an effort to reduce aquatic invasive species…in
Wisconsin’s Vilas County.


(Sound of pontoon motor)


On one afternoon he takes his pontoon boat on a lake that had an
infestation of Eurasian Watermilfoil.


“It is a very aggressive plant and it has no natural predators to control its
growth, it grows up to two inches a day.”


When Eurasian Watermilfoil finds conditions it likes, it takes over
quickly. A piece as small as two inches can break off, and float away to
create a new plant.


Eurasian Watermilfoil is widespread in northern Michigan… northern
Wisconsin and other places. It’s one of dozens of aquatic invasive
species on the move in the region.


One of the worst invaders is zebra mussels. They can ravage a lake’s
ecosystem.


(Sound of motor boat)


So far, they’ve made it to just one lake in northern Wisconsin. Mike
Preul with the Lake Superior Chippewa scuba dives there, to count the
mussels. Three years ago, he found 7 adults per square meter. This year,
he counted more than 14-hundred:


“They’re still increasing. What they’ve seen in other systems is that just
like with any other exotic species they’ll come in, the population will
explode, they’ll kind of eat themselves out of house and home, and then
they’ll come down to a level and reach a steady state.”


No method has been discovered to get rid of zebra mussels, but there are
ways to control some invaders.


Herbicides can be used to kill Eurasian Watermilfoil, and some property
owners chip in to buy aquatic insects to kill the plants.


Les Schramm did that on his local lake:


“As the larvae hatches it burrows into the stem of the Eurasian
Watermilfoil and sort of eats out the center vascular part, and it falls over
and dies.”


People fighting aquatic invasive species say it’s like fighting weeds in a
garden — the work never stops and it can be expensive.


Ted Ritter of Vilas County says it costs thousands of dollars to treat a
lake once. So, often people do nothing.


Ritter says that can hurt the environment. He says it can also threaten the
economy, in areas like northern Wisconsin that rely on tourism.


Ritter says the invaders can reduce the appeal of a lake. He mentions a
plant called “curly leaf pondweed.” When it dies in the middle of
summer, it creates algae blooms that look like slimy green pillows:


“When people arrive at resorts and they look out and they see that very
unappealing lake they say ‘I’m not staying here,’ and they go somewhere
else. When realtors bring prospective buyers out to look at a property,
people get out of their car and they go right to the lake and they say ‘oh
my, I’m not even interested in looking at the house. This lake is
horrible.'”


Because it’s so difficult to control invasive species, Ritter and others
fighting the invaders focus on prevention.


Local volunteers and workers from the Wisconsin Department of Natural
Resources spend hours at boat landings. They urge people to clean their
boats, trailers, and fishing gear thoroughly when going from lake to lake,
that can keep unwanted plants and creatures from traveling along.


For the GLRC, I’m Ann-Elise Henzl.

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