WIPP Update Feb 27 2014 – 13 Employees Contaminated

I’ll remind us all that the Waste Isolation Pilot Plant (WIPP) site is NOT a National Security site. It is a fancy landfill. There are really no secret programs there to protect. Maybe there are some secret parts buried there, but they have long-since been crushed. There is no reason to withhold news. The waste streams are well known and exactly where they are emplaced in WIPP is also well known. When the public gets news from WIPP officials, we deserve to have our questions answered clearly with all the important facts included.

Our best wishes go out to the employees.

Here’s the February 26, 2014 letter from the U.S. Department of Energy – Carlsbad Field Office, which provides oversight of the private contractor, Nuclear Waste Partnership, LLC, that currently manages and operates WIPP. Unfortunately, this letter raises many questions. Below are each of the paragraphs of the letter, followed by my questions and comments.

First Paragraph –

This morning (February 26), the 13 Waste Isolation Pilot Plant (WIPP) employees that were on site the evening of February 14 were notified that they have tested positive for radiological contamination. Employees were notified within about 12 hours of the receipt of preliminary sample results.

Ok, “the 13 Waste Isolation Pilot Plant (WIPP) employees that were on site the evening of February 14,” sounds like there were only 13 employees at WIPP on Feb 14. But the February 15, 2014, 9:17 PM WIPP press release states, “All non-essential employees were off-site by 5:30 PM MST.” The February 15, 2014, 9:17 PM WIPP press release also states, “No contamination has been found on any equipment, personnel, or facilities.” I guess we are to read this as, “No contamination has been found ON any personnel.”

Questions raised –

How many employees were onsite when?

Were the 13 contaminated employees essential or non-essential?

Were the non-essential employees (how many?) that left by 5:30 bioassayed?

How does an employee inhale rads and not have any on them?

 

Second Paragraph –

At the time of the event, these employees were performing above ground operations, and federal oversight duties at the WIPP facility. Nuclear Waste Partnership, LLC, the site contractor, requested that all workers on site the night of the event submit follow-up bioassay samples as they were considered more likely to have indications of potential exposure. Additional samples will be collected from these employees in the weeks ahead in order to perform complete analyses.

Questions raised –

When did Nuclear Waste Partnership, LLC request the bioassay samples from the night workers?

What made them “more-likely” to be exposed? What exactly were they doing?

Were the non-essential employees (how many?) that left by 5:30 bioassayed? When was this request made?

 

Third Paragraph –

It is premature to speculate on the health effects of these preliminary results, or any treatment that may be needed. However, on-site sampling and surveys and environmental monitoring, to date, continue to support National Atmospheric Release Advisory Center (NARAC) modeling, which indicates that airborne contamination was likely at very low levels.

Questions raised –

Where is the National Atmospheric Release Advisory Center (NARAC) modeling? The public must be allowed to read any and all reference documents. And by the way, NARAC is located at the Lawrence Livermore National Laboratory, which is a Department of Energy site. 

 

Fourth Paragraph –

The material for this release event is transuranic radionuclides. The release material was predominantly americium-241, material which is consistent with the waste disposed of at the WIPP. This is a radionuclide used in consumer smoke detectors and a contaminant in nuclear weapons manufacturing.

Questions raised –

Really? Smoke detectors? Here’s from the EPA

As long as the radiation source stays in the detector, exposures would be negligible (less than about 1/100 of a millirem per year), since alpha particles cannot travel very far or penetrate even a single sheet of paper, and the gamma rays emitted by americium are relatively weak. If the source were removed, it would be very easy for a small child to swallow, but even then exposures would be very low because the source would pass through the body fairly rapidly (by contrast, the same amount of americium in a loose powdered form would give a significant dose if swallowed or inhaled). Still, its not a good idea to separate the source from the detector apparatus.

All the americium at WIPP is the byproduct of Cold War nuclear weapons production. The Center for Disease Control (CDC) explains the health effects of americium.

The radiation from americium is the primary cause of adverse health effects from absorbed americium. Upon entering the body by any route of exposure, americium moves relatively rapidly through the body and is deposited on the surfaces of the bones where it remains for a long time. As americium undergoes radioactive decay in the bone, alpha particles collide with nearby cell matter and give all of their energy to this cell matter. The gamma rays released by decaying americium can travel much farther before hitting cellular material, and many of these gamma rays leave the body without hitting or damaging any cell matter. The dose from this alpha and gamma radiation can cause changes in the genetic material of these cells that could result in health effects such as bone cancers.

 

Fifth Paragraph – Here it states that inhalation did employees did occur.

Determining employee dose typically involves multiple sample analyses to determine employee’s radionuclide excretion rate over time. This allows the lab to estimate the employee’s accumulated internal dose. The time this process takes depends largely on the solubility of the inhaled particulate, with less water-soluble radioactive materials requiring more samples and time to accurately estimate the dose. Follow-up urine samples may require about three or more weeks to accurately predict dose.

 

Sixth Paragraph –

We are now focusing our sampling program on employees with work assignments that may have placed them at greater risk, including those on shift February 15. We are still reviewing staff assignments to determine if additional employees will need to be tested. However, employees who feel they were assigned positions or functions that placed them at risk will be included in follow-up bioassay monitoring at their request.

Questions raised –

How many employees were working on the 15^th? Were they wearing safety protection?

What is the criterion “to determine if additional employees will need to be tested”?

 

Seventh Paragraph –

There is no risk to family or friends of these employees. As we learn more information, we will continue to share. If you have any questions or concerns, please contact 1-800-336-9477. Thank you.

Questions raised –

What is the current status at the site?

Are employees working there now?

Are they wearing protective gear?

 

There apparently is a Press Conference today (Feb27 2014) at 3pm MST.

The New York Times ran a WIPP story today, NUCLEAR WASTE REPOSITORY SET TO REOPEN AFTER LEAK, New York Times — February 26, 2014, By Matthew L. Wald

This is a good example of what is known, what is being said, and what is not being said.

1. One shaft has a filter with a monitor and three don’t. The article, and many others, quotes a WIPP press release,

But late on Feb. 14, at an hour when no one was in the mine, an air monitor indicated the presence of radioactive contamination. An automated system cut off most of the ventilation and routed the exhaust through filters that are supposed to capture 99.97 percent of all contamination, turning off fans and changing the air flow, in less than one minute. 

At WIPP, there are 4 ways for air to get to the surface – the Exhaust Shaft, the Salt Shaft, the Air Intake Shaft, and the Waste Handling Shaft. When radioactive contamination is detected, airflow is directed to the Exhaust Shaft as its filter is put into place. This shaft has the only filter and monitors on any of the shafts. WIPP officials claim that it was a monitor in Panel 7 that detected radiation and set into action the sending of all the air to the Exhaust Shaft. The Panel 7 monitor is around 2000 feet from the shafts. This means that the WIPP officials were relying on any contamination to set off the monitor before any contamination went up a shaft. We need a layout of the monitors, and if they were working, in the underground.

 

2. “Safe levels” of radioactivity? The article quotes a WIPP monitor,

“For someone living in town, I would say the dose was probably zero,” Russell Hardy, director of the Carlsbad Environmental Monitoring and Research Center, an independent monitoring organization that is part of New Mexico State University, said in a telephone interview Tuesday. He said that the event would not add to background levels of radiation — including bomb fallout — any more than an eyedropper full of water would contribute to the rise in the level of the Pacific Ocean.

Seriously, an eyedropper in the Pacific? I had to look it up –

There are over 70 cubic million miles in the Pacific Ocean. Meaning there are 188,000,000,000,000,000,000 gallons in the pacific ocean. That is 187 quintillion gallons.

No problem, unless you eat the fish that drank that drop. Anyway, I don’t believe anyone knows how much radiation was released. The preliminary results are based on a ridiculously small number of air samples. The official projections are based on the implication that the samples represent the maximum contamination, which is unlikely.

 

3. Then, it was explained how to get dosed –

Even in the desert, the danger to humans was small, the mine’s operators said. The highest reading from the monitors indicated that a person could have inhaled radioactive material that would emit a dose, over the person’s lifetime, of 3.4 millirem, an amount roughly equal to three days of natural background radiation. But to get the dose, the person would have had to stand for hours in the desert, on the downwind side of the plant.

Again, the official projections are based on the implication that the samples represent the maximum contamination, which is unlikely. We await the many soil samples that will shed light on the actual amounts.