Black Swan

Toxic Tornado

When a nuclear reactor melts down due to a powerful tornado, deadly contamination rains down on a metropolitan area.
By: | August 4, 2014 • 9 min read
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It is a warm, humid spring day in Dallas/Fort Worth when strong thunderstorms begin to develop alongside a high-altitude weather system that includes strong winds and convective energy coming from the Rocky Mountains.

By mid-afternoon, the atmosphere reaches a tipping point. A massive supercell thunderstorm along the weather front produces large, damaging hail and what is later designated as an EF5 tornado, with winds in excess of 200 mph.

The most recent tornado of this size as designated by the National Weather Service was on May 20, 2013, when an EF5 struck Moore, Okla., killing 24 people, flattening neighborhoods and schools, and injuring more than 350 people.

This Texas tornado is much, much worse.

Video: An EF5 tornado in May 2013 flattened much of Moore, Okla.

Moving in the usual southwest to northeast direction, it creates a damage path about 1 mile wide and nearly 200 miles long, and directly strikes the Comanche Peak Nuclear Power Plant in Glen Rose, Texas, about 40 miles west of Fort Worth and 60 miles west of Dallas.

The power plant’s reactor was built to withstand winds up to 300 mph, but it can’t withstand what happens after the tornado throws around multiple gas-filled tanker trucks, which explode and kill numerous workers.

Matthew Nielsen, director of Americas product management at RMS, created the model for our Comanche Peak Nuclear Power Plant black swan scenario.

Matthew Nielsen, director of Americas product management at RMS, created the model for our Comanche Peak Nuclear Power Plant black swan scenario.

Debris fills the air as the powerful winds destroy much of the plant’s emergency equipment, making it impossible to maintain proper conditions and temperature within the reactor. The remaining power plant workers feverishly try to manually shut down the nuclear reactor before it melts down. They can’t.

When the reactor’s heat exceeds the ability of the plant’s processes to cool it down, radioactive gases begin to snake their way into the funnel stacks. The radioactive contamination is carried by the ferocious winds directly toward Dallas/Fort Worth.

Communication fails as area power lines go down, so it is difficult to warn the 7 million residents of the Metroplex, as Dallas/Fort Worth is known. Residents know the tornado has been sighted and try to prepare, but they don’t know that deadly airborne toxins are being carried toward them.

The Damage

About 10,000 homes and 700 commercial structures in the direct path of the tornado are completely destroyed and another 35,000 suffer damage, according to a model built by RMS. Roofs are ripped off apartment houses and multi-family dwellings. Vehicles are tossed around like toys, and with the storm striking at rush hour, workers on the roads are exposed to flying debris and high winds.

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Even with residents sheltering in basements and safe rooms, fatalities reach into the 500-700 range — putting this event in line to be the deadliest tornado in U.S. history, after the Tri-State tornado of 1925, which killed 695 people in Missouri, Illinois and Indiana.

But it is the unseen radioactive contamination that ultimately makes the deadliest mark on the area.

Immediate fatalities from radiation poisoning number about two dozen, but as the contaminated rainfall seeps into the ground soil and water supply, the long-term health of the residents — and their descendants — is jeopardized. So, too, are the cattle and other agricultural products of Texas, which leads the nation in the number of ranches and farms it holds.

Chernobyl and Fukushima are the only events of a similar nature, even though the United States has seen its own recent near misses.

The radioactivity causes large swaths of area to be cordoned off, making it difficult to repair transmission and power lines as well as homes and businesses.

“The hard truth is that many businesses will close and many people will move from the area,” said Todd Macumber, president of international risk services, Hub International.

Chernobyl and Fukushima are the only events of a similar nature, even though the United States has seen its own recent near misses.

In 2011, a tornado knocked out power to the Browns Ferry Nuclear Power Plant near Huntsville, Ala., requiring the shut down of its three reactors. The plant fired up backup diesel generators until power was restored. The storm also disabled the plant’s sirens, which are needed to warn nearby residents in a crisis.

That same year, a tornado barely missed damaging 2.5 million pounds of radioactive waste at the Surrey Power Station in southeastern Virginia, although it touched down in the plant’s electrical switchyard and disabled power to the cooling pumps. The operators needed to activate backup diesel generators to run the two reactors until power was restored.

Twenty-eight years after the radioactive disaster at Chernobyl in 1986, some parts of the Ukraine remain a toxic wasteland. And in Japan, an initial evacuation area of about 2 miles surrounding the Fukushima Daiichi Nuclear Power Plant was soon widened to about 12.5 miles.

About 300 tons of  highly radioactive water has leaked from storage tanks at the Fukushima Daiichi Nuclear Power Station.

About 300 tons of highly radioactive water has leaked from storage tanks at the Fukushima Daiichi Nuclear Power Station.

Now, three years after three of Fukushima’s six reactors melted down, the area is still unlivable and 40 miles away, diagnoses in children of thyroid cancer, which is caused by radiation poisoning, are skyrocketing, according to some reports.

Nearly 16,000 people died in the 2011 earthquake and tsunami that struck Japan, causing the meltdown. About 160,000 people were evacuated, 130,000 buildings were destroyed and $210 billion in damage was sustained.

The Texas scenario has a lot of variables, said Matthew Nielsen, director of Americas product management at RMS, who created the model for our Comanche Peak Nuclear Power Plant black swan scenario.

The likelihood of a tornado, with thunderstorms and hail, causing massive structural damage is about 1 in 200 years, he said. Such an event would result in at least $20 billion in insured losses and uninsured losses of about the same amount.

But a tornado following the exact path as this scenario — striking the power plant and heading into the Dallas/Fort Worth Metroplex — has a much, much smaller chance — about 1 in 10,000 years.

“Given the fact that tornadoes are very rare, it isn’t something that I think people should be screaming and running around frantically about,” Nielsen said. “But it’s certainly something that could happen.”

As for losses due to the radiation? “There’s not a lot of historical data points that we can confidently say that that portion would be x or y billion,” he said.

The Recovery

Any rebuilding will be delayed by the threat posed by radioactive contamination, which may spread over a large area via the thunderstorms and storm water runoff.

From an insurance perspective, all personal and commercial lines of insurance have a nuclear energy hazard exclusion. American Nuclear Insurers (ANI) provides third-party liability insurance for all power reactors in the United States.

“We are responsible for the insurance coverage protecting the operators from claims alleging bodily injury or property damage offsite from [radioactive] materials,” said Michael Cass, vice president and general counsel at ANI, a joint underwriting association with 20 insurance company members.

082014_02_cs_tornado_nuclear350pxNEWThe ANI was created under the Price-Anderson Act of 1957 and provides a primary policy limit of $375 million for claims due to offsite consequences from the release of radioactive materials from the 100 operating nuclear power plants in the United States. It also covers some plants that are shut down or in the process of being decommissioned, he said.

The ANI also covers costs related to emergency response and evacuation, including food, clothing and shelter, he said.

The joint underwriting association also administers an additional excess layer of about $13.2 billion, the costs of which would be borne by the power plant operators, and would be apportioned equally among them.

For any claims above $13.6 billion (which includes both the primary and excess layers), the Price-Anderson Act requires the U.S. Congress to “take steps to come up with a scheme to provide full compensation to the public and to continue claims payments,” Cass said.

“They could assess or tax the energy industry in some fashion or form. It doesn’t say that specifically, but that is what is alluded to.”

None of the insurance companies that are ANI members would be adversely affected if such a black swan event were to occur, he said.

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“There would be a loss reserve recorded on their balance sheets, per participation in our pool, but we do have funds set aside for these catastrophic events where we wouldn’t be requiring any additional funds,” Cass said.

Damage to the power plant itself would be covered by Nuclear Electric Insurance Ltd., which insures electric utilities and energy companies in the United States. Current limits are $1.5 billion per site on the primary program, and up to $1.5 billion per site in its excess program.

Allan Koenig, vice president, corporate communications at Energy Future Holdings, which operates Comanche Peak, said the plant is robustly protected. It has two independent systems that can provide off-site power as well as backup diesel generators, to allow the units to be safety shut down in the event of natural catastrophes.

He also noted the plant has safety shields for fuel storage casks, a 45-inch-thick steel-reinforced concrete containment building wall, and fire protection redundancies.

As for the affected businesses and homeowners, they may be left in a swirling vortex of coverage confusion. The situation would have the flavor of what happened after Superstorm Sandy, when coverage often depended on whether damage was caused by flooding or wind surge.

The question for Texas insureds would be whether the damage was caused by the tornado or by the radioactivity.

“It’s an incredibly complex question and a complex issue that is really only solvable and resolvable if and when the incident occurs,” said John Butler, vice president of the environmental practice at Hub International.

“What it boils down to is the chicken and the egg scenario,” he said. “What came first? Either event has the ability on its own to create a total loss.”

Resilience and redundancy should be the key takeaways from this, said Peter Boynton, founding co-director of the Kostas Research Institute for Homeland Security at Northeastern University in suburban Boston.

“If we can retain a percentage of the critical function of whatever system we are talking about, the difference between 0 percent and 30 percent when the bad thing happens is huge.” — Peter Boynton, founding co-director of the Kostas Research Institute for Homeland Security, Northeastern University

Instead of viewing catastrophic events from an emergency management perspective, where the discussion revolves around what was — or was not — managed well, it’s better to look at the way design can lead to “continuity of function,” he said.

When Boynton was head of emergency management for the state of Connecticut, he managed the statewide response in 2011 to Hurricane Irene, which knocked out 70 percent of the state’s electric grid, leaving residents unable to access many gas stations, ATMs and grocery stores.

If the state had designed a “resiliency approach” prior to the event, it could have built in a pre-determined amount of redundancy into the system so that, say, an additional 20 percent or 30 percent of the grid remained viable.

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“If we can retain a percentage of the critical function of whatever system we are talking about, the difference between 0 percent and 30 percent when the bad thing happens is huge,” Boynton said.

In the Texas scenario, if the crisis planning included a redundancy for warning nearby residents even when the power and communication lines failed — such as by using satellites to create a minimal level of continuity — the amount of death and destruction could have been lessened.

“Otherwise, we really are setting ourselves up for an impossible discussion,” he said. “You can’t just pick up these pieces at the moment of crisis. You have to understand how system design can play a role.”

Analyzing such a black swan scenario is a useful exercise, said Justin VanOpdorp, manager, quantitative analysis, at Lockton.

“Can this actually happen? Yes. Will it? Maybe not,” he said. “I think what it does is, it helps to think through it just to be prepared for those situations when they do arise.”

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Additional 2014 black swan stories:

Bigger Than the Big One

When the 8.5 magnitude earthquake hits, sea water will devastate much of Los Angeles and San Francisco, and a million destroyed homes will create a failed mortgage and public sector revenue tsunami.

Sub-Zero Sucker Punch

A double dose of ice storms batter the Eastern seaboard, plunging 50 million people and three million businesses into a polar vortex of darkness and desperation.

Anne Freedman is managing editor of Risk & Insurance. She can be reached at [email protected]
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Infographic: The Risk List

7 Emerging Technology Risks

Innovative technology presents unforeseen risk exposures. Presented by Travelers.
By: | August 26, 2014 • 1 min read
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The Risk List is presented by:

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The R&I Editorial Team may be reached at [email protected]
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Sponsored Content by CorVel

Advocacy: The Impact of Continuous Triage

Claims management is never stagnant. Utilizing a continuous triage model keeps injured employees on track to recovery.
By: | May 4, 2016 • 6 min read

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Introduction

In the world of workers’ compensation, timing is everything. Many studies have shown that the earlier a workplace incident or injury is acted upon, the more successful the results*. However, there is further evidence indicating there is even more of an impact seen when a claim is not only filed promptly, but also effective triage is conducted and management of the claim takes place consistently through closure.

Typically, every program incorporates a form of early intervention. But then what? While it is common knowledge that early claims reporting and medical treatment are the most critical parts of a claim, if left alone after management, an injured worker could – and often does – fall through the cracks.

All Claims Paths are Not Created Equal

Even with early intervention and the best intentions of the adjuster, things can still go wrong. What if we could follow one injury down two paths, resulting in two entirely different outcomes? This case study illustrates the difference between two claims management processes – one of proactive, continuous claims triage and one of inactivity after initial intervention – and the impact, or lack thereof, it can have on the outcome of a claim. By addressing all indicators, effective triage can drastically change the trajectory of a claim.

The Injury

While working at a factory, David, a 40-year-old employee, experienced sudden shoulder pain while lifting a heavy box. He reported the incident to his supervisor, who contacted their 24/7 triage call center to report the incident. After speaking with a triage nurse, the nurse recommended he go to an occupational medicine clinic for further evaluation, based on his self-reported symptoms of significant swelling, a lack of range of motion and a pain level described as greater than “8.”

The physician diagnosed David with a shoulder sprain and prescribed two weeks of rest, ice and prescription strength ibuprofen. He restricted David from any lifting over his head.

By all accounts, early intervention was working. Utilizing 24/7 nurse triage, there was no lag time between the incident and care. David received timely medical attention and had a treatment plan in place within one day.

But Wait…

A critical factor in any program is a return to work date, yet David was not given a return to work date from the physician at the occupational medicine clinic; therefore, no date was entered in the system.

One small, crucial detail needs just as much attention as when an incident is initially reported. What happens the third week of a claim is just as important as what happens on the day the injury occurs. Involvement with a claim must take place through claim closure and not just at initial triage.

The Same Old Story

After three weeks of physical therapy, no further medical interventions and a lack of communication from his adjuster, David returned to his physician complaining of continued pain. The physician encouraged him to continue physical therapy to improve his mobility and added an opioid prescription to help with his pain.

At home, with no return to work in sight, David became depressed and continued to experience pain in his shoulder. He scheduled an appointment with the physician months later, stating physical therapy was not helping. Since David’s pain had not subsided, the physician ordered an MRI, which came back negative, and wrote David a prescription for medication to manage his depression. The physician referred him to an orthopedic specialist and wrote him a new prescription for additional opioids to address his pain…

Costly medical interventions continued to accrue for the employer and the surmounting risk of the claim continued to go unmanaged. His claim was much more severe than anyone knew.

What if his injury had been managed?

A Model Example

Using a claims system that incorporated a predictive modeling rules engine, the adjuster was immediately prompted to retrieve a return to work date from the physician. Therefore, David’s file was flagged and submitted for a further level of nurse triage intervention and validation. A nurse contacted the physician and verified that there was no return to work date listed on the medical file because the physician’s initial assessment restricted David to no lifting.

As a result of these triage validations, further interventions were needed and a telephonic case manager was assigned to help coordinate care and pursue a proactive return to work plan. Working with the physical therapist and treating physician resulted in a change in David’s medication and a modified physical therapy regimen.

After a few weeks, David reported an improvement in his mobility and his pain level was a “3,” thus prompting the case manager’s request for a re-evaluation. After his assessment, the physician lifted the restriction, allowing David to lift 10 pounds overhead. With this revision, David was able to return to work at modified duty right away. Within six weeks he returned to full duty.

With access to all of the David’s data and a rules engine to keep adjusters on top of the claim, the medical interventions that were needed for his recovery were validated, therefore effectively managing his recovery by continuing to triage his claim. By coordinating care plans with the physician and the physical therapist, and involving a case manager early on, the active management of David’s claim enabled him to remain engaged in his recovery. There was no lapse in communication, treatment or activity.

CorVel’s Model

After 24/7 nurse triage is conducted and an injured worker receives initial care, CorVel’s claims system, CareMC, conducts continuous triage of all data points collected at claim inception and throughout the life of a claim utilizing its integrated rules engine. Predictive indicators send alerts to prompt the adjuster to take action when needed until the claim is closed ­– not just at the beginning of the claim.

This predictive modeling tool flags potentially complex claims with the risk for high exposure, marking claims that need intervention so that CorVel can assign appropriate resources to mitigate risk.

Claims triage is constant – that is the necessary model. Even on an adjuster’s best day, humans aren’t perfect. A rules engine helps flag things that people can miss. A combination of predictive systems and human intervention ensures claims management is never stagnant – that there is no lapse in communication, activity or treatment. With an advocacy team in the form of an adjuster empowered by a powerful rules engine and a case manager looking out for the best care, injured employees remain engaged in their recovery. By perpetuating patient advocacy, continuous triage reduces claim severity and improves claim outcomes, returning injured workers to the workforce and reducing payors’ risk.

*WCRI.

This article was produced by CorVel Corporation and not the Risk & Insurance® editorial team.



CorVel is a national provider of risk management solutions for employers, third party administrators, insurance companies and government agencies seeking to control costs and promote positive outcomes.
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