Showing posts with label Flood. Show all posts
Showing posts with label Flood. Show all posts

Thursday, October 14, 2021

Moab UMTRA Plays Russian Roulette With Nuclear Waste - 2011

 


Tourists enjoy the Colorado River Bicycle Bridge at Moab, Utah - Click for larger image (http://jamesmcgillis.com) 

Moab UMTRA Plays Russian Roulette With Nuclear Waste 

Late May 2011 found me in Moab, Utah once again. While there, one of my projects was to monitor potential flooding along the Colorado River. Previous research and scientific findings indicate that a Colorado River flood at Moab is more likely now than in any recent time.
 
As temperatures swing, drought prevails and dust storms roam the Four Corners, a heavy spring snowpack, and a quick thaw could create catastrophic flooding at Moab. To be sure, most of the town lies on higher ground, well above the paleo-floodplain. Other than a few commercial buildings and several campgrounds, the greatest risk is flooding at the Moab Pile.
 
Colorado River nears flood stage upstream from Moab, Utah in June 2011 - Click for larger image (http://jamesmcgillis.com)During the Cold War years, uranium mines near Moab fed radioactive ore to the Atlas Uranium Mill. Using large quantities of highly corrosive acid, the mill concentrated the ore and then shipped it to the federal government, which had a monopoly on all things radioactive. Since all Americans hypothetically benefited from the nuclear deterrent known as “assured mutual destruction”, so too should we all pay to cleanup the mess abandoned by the nuclear industry.
 
Remnants of the Atlas Uranium Mill and a colossal mountain of radioactive tailings together make up the Moab Pile. Since 2009, excavators have filled and sealed steel containers with vast amounts of the pile’s radioactive earth. From Moab to Crescent Junction, the material takes a free ride via the Union Pacific Railroad's "Train of Pain". Actually, the ride is not free. Through our federal tax dollars, all U.S. Persons pay for its removal.
 
U.S. Highway 191 Colorado River Bridge at Moab, Utah, with Canyonlands by Night facility downstream - Click for larger image (http://jamesmcgillis.com)By late May 2011, the Colorado River approached flood-stage in Grand Junction, Colorado. As the flood surged downstream, I wanted to see if the Moab Pile was as vulnerable as paleo-flood surveys indicated. Over a two-day period, I visited several sites on each side of the river and also stood above the flow on the bicycle bridge. Viewed from any angle, water reached higher on the riverbanks than I had ever seen. According to some reports, flow rates have not been this high since 1983, when Lake Powell filled to capacity and forced operators to open the Glen Canyon Dam spill gates for the first time.
 
From the bicycle bridge, looking downstream, the U.S. 191 Highway Bridge appeared to skim low over the water. With its gracefully arched concrete supports, there was still some headroom for the water to flow. Just south of the highway bridge, the Canyonlands by Night buildings looked vulnerable to me. The riverbanks there were high enough to allay imminent fears, but their lack of reinforcement made for inadequate protection in the event of a larger flow. In any event, I would not want to own their flood insurance company.
 
Canyonlands by Night Colorado River excursion boat, with the Scott Matheson Wetlands and Moab Pile in the background - Click for larger image (http://jamesmcgillis.com)I stopped at Canyonlands by Night to see if they needed a live webcam. A representative said, “No, we already have one”. To myself, I thought, “Maybe you do, but it is not easy to find on the internet”. There was an excursion boat tethered to the floating dock, but otherwise the grounds appeared deserted. Standing close to the river, I could picture two alternate scenarios. In the local version, the flood subsided and life in Moab went on as usual. In the Hollywood version, the snowpack in the high country melted in days, not months. The silent power of the Colorado River flood then enveloped the Canyonlands by Night property and swept it away.
 
Continuing my river tour, I turned off U.S. 191 at Utah State Route 279, better known as the Potash Road. After skirting the now diminished Moab Pile, I headed downstream. Despite nearly a decade of attempted extermination using the Tamarisk Beetle, large, half-dead tamarisk shielded every river view. Soon, I turned around and drove back to where I could see the Moab Pile, the Colorado River and the Scott Matheson Wetlands, all in one panorama. From a distance of about one half mile, the churning brown, river appeared to lap at the base of the Moab Pile. The following day, I drove downriver on the opposite bank, along the Kane Creek Road. With the Matheson Wetlands then to my right, the Moab Pile stood out on the horizon, along the far riverbank. Although the river was turgid and brown, its wide channel in that area kept the river in check.
 
Looking upstream at the U.S. Highway 191 Highway Bridge from Canyonlands by Night, Moab Utah - Click for larger image (http://jamesmcgillis.com)Writing now from California in late June 2011, I must rely on news reports and internet searches to keep up with the story. While Googling variations of, “Colorado River Flood Moab 2011”, I found a number of articles that touched upon the subject. None, however, told what I considered to be a complete story. As I have pieced it together, here is what transpired since I left Moab in early June. 
 
Both the Green River and the Colorado River continued to rise until at least mid-June. Grand Junction, Colorado experienced significant flooding and bank-erosion, although the river made a long, slow peak there. Downstream, near Moab, the Red Cliffs Lodge experienced bank erosion and flooding of temporary structures in what they call their “gravel area”. According to on-scene reports, the river never approached the hotel or its guest rooms. The Colorado River bicycle and highway bridges at Moab stood firmly above the river. Canyonlands by Night remained dry, if not high above the river crest. The Moab Pile still sits sedately in its old place, although water backed-up into adjacent drainage channels.
 
Colorado River flooding - A view upstream past dying tamarisk toward the Moab Pile, with the Matheson Wetlands to the right - Click for larger image (http://jamesmcgillis.com)In the spring of 2011, what saved the Moab Pile? The answer may lie in the Matheson Wetlands, which were a softer target than the Moab Pile. Wildfires swept hundreds of acres near the river in 2009, with another sixty acres burned in June 2011. By late June, the river flooded the Matheson Wetlands, submerging much of the recent burn area. Root structures weakened in the 2009 fire now let go altogether. Without further human intervention, the latest fire became the lucky break that we needed. If two separate fires caused by human carelessness had not weakened the plant structures along the river, the wetlands might have held their banks. As it was, they absorbed the flood over a wide flood plain. If they had not accepted the flood as they did, a rampaging Colorado River might have projected its hydraulic power toward the reeking hulk of the Moab Pile.
 
In order to protect the Moab Pile, UMTRA crews have removed some material from its leading edge. UMTRA has constructed several small protective berms, as well. However, the paleo-history of floods along the Colorado River at Moab indicates that the Moab Pile remains vulnerable to the "three hundred year flood", if it should happen during the next decade. During that decade of tailings removal, there is a one-in-thirty chance that a flood of up to ten times the current 32,000 cfs flow rate will hit Moab. Picture a wall of water forty or fifty feet higher than the new highway bridge as it sweeps out of the Colorado Riverway Canyon, and then on towards the Moab Pile.
 
Colorado River water intrudes into the Matheson Wetlands on the far riverbank; with late May 2011 snowpack on the La Sal Range in the background - Click for larger image (http://jamesmcgillis.com)Had the Upper Colorado Basin snowpack been deeper last winter or had it melted faster, the 2011 story might have ended quite differently. We who live downstream and depend on the Colorado River for our water supply were lucky this time. Just as easily, it could have gone the other way. In a Fukushima-like, scenario, some or all of the Moab Pile could now lie as radioactive mud on the bottom of Lake Powell. If a mega flood were to fill Lake Powell, operators at Glen Canyon Dam would open the flood gates and sweep that cloud of radioactive mud on towards Lake Meade. Such an event would likely rank as the number one human caused disaster in all of recorded history. For lack of uncontaminated water, the Desert Southwest would face a human out-migration fifteen to thirty times greater than what occurred during the disappearance of the Anasazi.
 
Recent news reports stated that by 2019, the Moab Pile could be moved. The engineers and workers at the Moab UMTRA project are so efficient that they haul more radioactive-waste more quickly than ever before. among other things, they have learned to fill huge rectangular containers almost to the brim. Even though an initial infusion of federal stimulus money is now gone, the original twenty-year plan could culminate in less than fifteen years. Despite the lucrative contracts to remove it, no one wants to hang around a pile of radioactive waste any longer than necessary.
 
The Moab Pile, adjacent to the flooding Colorado River at Moab, Utah in June 2011 - Click for larger image (http://jamesmcgillis.com)The “speed is of the essence” mentality at Moab UMTRA increases our collective risk. The highest priority should be to protect the pile from flood damage and dispersal. Recent flood mitigation at the site proved sufficient for this year's 30-year flood. Once sufficient flood mitigation is in place to protect against the 300-year flood, removal could again become the top priority. Otherwise, the unprotected status of the Moab Pile will require that we, in the Southwestern United States dodge the “nuclear bullet” each spring until at least 2019.
 
Check back here in 2020 to see if disaster struck. If we are writing our articles from upstream of the current Moab Pile, you will know that current plans did not go well. If we are then writing from downstream in sunny Southern California, you will know that we all won the game of “Nuclear Waste Roulette” now playing out along the Colorado River at Moab.
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By James McGillis at 06:48 PM | | Comments (0) | Link

Monday, October 11, 2021

Cleanup of UMTRA Moab Nuclear Site is Now On Flood-Watch - 2011

 


View of the Colorado River, with UMTRA nuclear cleanup site at lower left - Click for map of UMTRA site (http://jamesmcgillis.com) 

Cleanup of UMTRA Moab Nuclear Site is Now On Flood-Watch 

During the Cold War years, the UMTRA project languished for lack of sufficient funding.
 
During heavy rain, the Moab Wash channels water toward the Moab Pile and the Colorado River. An aerial photo on the current UMTRA website shows the wash running toward the site. Both then and now, a subterranean stream passes under the site. As it does so, it carries hazardous materials to the Colorado River. Today, pumps near the river lift much of that contaminated water to the surface. Sprinklers then distribute it across the tailings, where it evaporates into the atmosphere.
 
By 2006, new studies showed a high potential for massive flooding along the Upper Colorado River. What had previously been called a ‘1000-year flood’ might occur once in 300 years. The new 300-year flood might also be three The Moab Pile in April 2009. Click for image one year later (http://jamesmcgillis.com)times larger than the old 1000-year flood. Sediments from ancient floods along the river proved that a large spring flood could sweep much of the Moab Pile downstream. If so, its radioactive poisons would flow toward the Lower Colorado Basin. Suddenly, the prospect of Los Angeles and Phoenix becoming “ghost cities” seemed plausible.
 
During the George W. Bush administration, cleanup funds for the Moab Pile were sparse. At the time, the U.S. was fighting wars in both Iraq and Afghanistan. Unwilling to add further to the federal deficit, many Cold War era cleanups languished. Conventional wisdom said, “If a large flood is so rare, the odds are that it will not happen here in our lifetimes.” 
 
Soon after President Obama took office, his administration funded cleanup of the Moab Pile. Then, as the economy faltered, the project received additional federal stimulus money. In April 2009, the first trainload of contaminated soil departed for a disposal site near Crescent Junction, Utah. By late 2010, larger waste containers and a second train each day promised even faster removal of the Moab Pile.
Nuclear waste container staging area at the Moab Pile - Click for larger image (http://jamesmcgillis) 
In 2025, when UMTRA concludes its work, the long-running environmental disaster known as the Moab Pile will be gone. With almost fifteen years to go, I wonder what might happen if a 300-year flood hits the site prior to complete removal.  When asked that question, an UMTRA manager explained to me that flood protection at the site was already complete. Most of that work focused on sandbagging where the Moab Wash meets the river on the northern edge of the Moab Pile. As a temporary stopgap, workers had sandbagged to protect the well field adjacent to the Colorado River. That small project protected against a normal spring flood, but would do nothing to stop the potential ravages of a 300-year flood event.
 
Once the removal and transport work began, conventional wisdom reestablished itself. The current prevailing attitude at the UMTRA project is that, ‘If we don't think about it, everything will be OK’. Removal and disposal of material continues, but will that effort ‘beat the clock’ against a 300-year flood event? Statistically, there is a five percent chance that a 300-year flood event will occur before UMTRA concludes. Even so, federal regulators and the private contractor continue to ignore the potential for flood damage at the UMTRA site.
Empty nuclear waste container being moved at UMTRA site, Moab, Utah - Click for larger image (http://jamesmcgillis.com) 
In recent years, large dust storms have become common occurrences in the Four Corners. The prospect of a regional dust storm rapidly melting heavy snowpack on the Colorado Plateau is real. In preparation for such an event, both UMTRA and its regulators should reassess the risk of flood damage at the site. A one-in-twenty chance that a flood will send any part of the Moab Pile downstream is too high a risk to take. The livelihood of fourteen million downstream residents may depend on protecting the Moab Pile during its removal.
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By James McGillis at 12:49 PM | Environment | Comments (0) | Link