Five good reasons to support the City of Ottawa’s call for an assessment of Ottawa Valley radioactive disposal projects

On April 14, 2021 the City of Ottawa council passed a resolution of concern about the Chalk River and Rolphton radioactive waste disposal projects, joining more than 140 municipalities, the Anishinabek Nation and Iroquois Caucus, and the Assembly of First Nations.

Prior to being passed by the full Ottawa City Council, the resolution was studied and passed unanimously by the City’s environment committee after an eight hour meeting on March 30, 2021 which can be viewed here. Among other things, the resolution calls on the Minister of Environment and Climate Change to initiate a regional assessment of Ottawa Valley radioactive disposal projects under the Impact Assessment Act of 2019.  (See Mayor Jim Watson’s letter to Minister Wilkinson here.)

Here are five reasons to support the City of Ottawa’s call to Minister Jonathan Wilkinson:

1. Radioactive waste in the Ottawa Valley is a very large and complex problem. It makes up the lion’s share of federally-owned “legacy” radioactive wastes, an $8 billion liability for the citizens of Canada.

The radioactive wastes currently on site at the Chalk River Laboratories, upstream of Ottawa-Gatineau, make up most of the Government of Canada’s eight billion dollar nuclear liability. This federal radioactive cleanup liability exceeds the sum total of 2000 other federal environmental liabilities . As Canada’s largest and most complex federal environmental liability, this challenge is worthy of the best and most thorough assessment available under the new Impact Assessment Act.

2. Proposed Ottawa Valley radioactive disposal projects are substandard, highly controversial, and would NOT address many parts of the needed cleanup.

The proposed Chalk River Mound (“Near Surface Disposal Facility”) and Rolphton Reactor Tomb (“NPD Closure Project”) are low budget, inadequate proposals meant to quickly and cheaply reduce Canada’s federal nuclear liabilities. The two projects were proposed five years ago by a consortium of private companies contracted by the Harper government in 2015. The proposals ignore safety standards of the International Atomic Energy Agency and have been found wanting in thousands of critical comments submitted by Indigenous communities, municipalities, former AECL scientists and managers, NGOs, citizens’ groups and individuals.

The projects are expected to leak radioactive contaminants into the Ottawa River for millennia, according to Environmental Impact Statements produced by the proponent. The giant Chalk River Mound is expected to disintegrate as part of a process of “normal evolution” according to the proponent’s “performance assessment” study.

The vast majority of radioactive wastes in the Ottawa Valley would NOT be addressed by these two projects.

3. Environmental assessments of the giant mound and reactor tomb are being badly fumbled.

The environmental assessments of the NSDF and NPD closure projects were initiated in 2016 by the Canadian Nuclear Safety Commission. Numerous problems with the CNSC’s handling of the EAs were identified in Environmental Petition 413 to the Auditor General of Canada in January 2018. Problems have continued to arise including lack of opportunity for public input, lack of transparency, and lack of firm deadlines for completion of the assessments. The EAs have been ongoing for far longer than is normal or reasonable for such assessments.

The Canadian Nuclear Safety Commission has been identified as a captured regulator that promotes the projects it is supposed to regulate. The CNSC is therefore not an ideal agency to be overseeing assessments of radioactive disposal projects in the Ottawa Valley.

4. The complex challenge of nuclear waste in the Ottawa Valley is NOT addressed by the assessments that are currently ongoing.

Again, the eight billion dollar federal radioactive cleanup liability is the biggest and most expensive federal environmental challenge by far. The vast majority of the wastes comprising this liability are already in the Ottawa Valley at the Chalk River Laboratories. For an indication of the complexity of this challenge at Chalk River see the Ottawa Citizen article by Ian McLeod, Chalk River’s Toxic Legacy. Radioactive wastes not addressed by the mound and the tomb proposals include the three reactor cores dumped in the sand at Chalk River (including one from the 1952 NRX partial meltdown), the highly radioactive solidified medical isotope production wastes (including weapons-grade uranium-235), the tanks of intermediate- and high-activity liquid wastes at the ‘Waste Tank Farm”, the spent fuel from the NRX, NRU and NPD reactors, and the NRX and NRU reactors themselves.

The private sector consortium running Canadian Nuclear Laboratories plans to consolidate the federal governments’s radioactive waste from across Canada in the Ottawa Valley and is already shipping radioactive wastes from Manitoba, Quebec and elsewhere in Ontario to Chalk River. There are serious concerns about consolidating federal nuclear wastes at the Chalk River site, in a seismically-active area, beside a major river (The Kitchissippi/ Ottawa) that provides drinking water for millions of Canadians. Serious concerns about long term storage of radioactive waste in close proximity to water bodies are noted in the Joint Declaration of the Anishinabek Nation Iroquois Caucus on transport and abandonment of radioactive waste. Consolidation of federal government nuclear wastes in the Ottawa Valley and First Nations’ guidance to store waste away from major water bodies are not addressed by the current NSDF and NPD environmental assessments.

CCRCA recently learned that the consortium is going ahead with radioactive waste projects such as a new cask facility to receive shipments of highly-radioactive spent fuel from the Whiteshell (MB) and Gentilly-1 (QC) reactors, and a new intermediate-level waste storage facility that would likely contain dangerous commercial wastes. The consortium is making determinations about the significance of the impacts of these projects on behalf of Atomic Energy of Canada (AECL) with no transparency or public input. Assessment of the risks and implications of these projects should be done through a transparent public process. AECL, which has been reduced from thousands of employees to around 40, appears to be shirking its role of overseeing its contract with the consortium. 

The cumulative impacts of all wastes and all current and future projects need to be considered together. A regional assessment could do this.

5. A regional assessment of radioactive waste disposal in the Ottawa Valley could address all problems noted above.

A regional assessment could:

  • make existing baseline data publicly accessible and produce a broad-based analysis of the problem
  • look at cumulative impacts of all the current and proposed management strategies for Ottawa Valley radioactive wastes, and transport of wastes from Manitoba, southern Ontario and Quebec to Chalk River.
  • address leaking waste management areas at the Chalk River Labs, radioactive waste imports to the Ottawa Valley and the potential creation of new wastes associated with the proposed new “small modular” reactor research and development
  • incorporate Indigenous knowledge and priorities
  • look at the big picture including the need to protect drinking water, property values and tourism and provide secure long-term employment opportunities for Ottawa Valley communities.
  • provide assurance to the federal government and other levels of government that the largest federal environmental cleanup liability is being properly addressed.


To support the City of Ottawa’s call, please consider writing to the Minister of Environment and Climate Change Canada  For your reference, Mayor Jim Watson’s letter to Minister Wilkinson is available for download here.

Letters should be sent to The Honourable Jonathan Wilkinson <Jonathan.Wilkinson@parl.gc.ca>

with cc to: OttawaValley-ValleeOutaouais (IAAC/AEIC) <iaac.ottawavalley-valleeoutaouais.aeic@canada.ca> Please be sure to state that you letter is Re: Canadian Impact Assessment Registry reference number 81624, “Potential regional assessment of radioactive waste disposal in the Ottawa Valley”

and: your member of parliament. Please forward a copy of your letter to us at <concernedcitizensofrca@gmail.com>

The Minister is required to respond to Ottawa’s request by July 31, 2021, so send your letters as soon as possible. But don’t hesitate to send them after July 31st too, as this issue is not going away any time soon.

Debunking myths about the Chalk River Mound (aka “NSDF”)

The Chalk River Mound or “near surface disposal facility” is a proposed giant above ground landfill for one million tons of radioactive waste on the property of Canadian Nuclear Labs, less than one kilometre from the Ottawa River upstream of Ottawa-Gatineau and Montreal. We debunk below two of the most misleading myths about the proposed facility. Please contact us if you need more references for the material presented below, or browse our list of all posts for more information.

Myth # 1: It’s only “low level waste”


“Low level” in the context of radioactive waste does not mean “low hazard”

This is a really big mistake that almost everyone makes. “Low level” simply means the wastes can be handled by nuclear industry workers without the use of lead shielding because the wastes give off relatively low levels of gamma radiation. But they can and do contain high levels of other types of radiation such as “alpha” and “beta.”  “Low level” radioactive waste can remain hazardous for hundreds of thousands of years and includes some of the most toxic radioactive poisons known such as plutonium.

No “Intermediate waste” in the NSDF is a red herring.
Neither “Low level” OR “Intermediate level” radioactive wastes are supposed to be disposed of in above-ground engineered mounds (landfills) according to the International Atomic Energy Agency. That is because both categories are dangerous and pose risks to all life on earth for the duration of their radiological hazard, which is hundreds of thousands of years for BOTH CATEGORIES of waste.  The main thing that distinguishes “Low level” from “intermediate level” radioactive waste is that “low level” can be handled without shielding or robots because its risks come from inhalation or ingestion. “Intermediate level” waste on the other hand gives off strong gamma radiation and therefore requires lead shielding and/or remote handling.

Much of the legacy waste at the Chalk River site is a poorly characterized or uncharacterized MIXTURE of “low” and “intermediate” level wastes.
The dividing lines between the categories are blurry. There are many different definitions around the world. Canada’s definitions are inferior to those in other countries. The wastes are not all sitting around in nice neat packages labelled “low level” and “intermediate level”. It would be the work of decades to properly categorize, package and label all the legacy wastes, and arguably, this should be done before choosing technologies for managing the wastes. We are in touch with a former engineer at AECL who was in charge of waste characterization for decades and worked as a consultant for the IAEA. He says the knowledge level of legacy wastes at Chalk River was and likely still is “abysmal”.

The proponent is playing games with Waste Acceptance Criteria to enable maximum disposal of legacy wastes in the NSDF
Definitions are being finagled to enable claims that “only” low-level wastes would go in the facility.  Canada’s nuclear regulator, the Canadian Nuclear Safety Commission, allows proponents to make up their own definitions of waste classes.  The NSDF proponent defines wastes with long-lived beta/gamma activity as high as ten thousand radioactive disintegrations per second per gram of waste (Bq/g) as “low level”.  Finland puts any waste with activity greater than one hundred Bq/g in an underground facility, 65-90 meters deep in crystalline rock.5.

The proponent’s contract with Atomic Energy of Canada states that it will dispose of ALL wastes quickly and cheaply.
The main objective of the GoCo contract was to reduce Canada’s legacy radioactive waste liabilities. The ONLY strategies being advanced by the consortium are the above ground engineered mound (landfill) and in-situ burial of reactors on the Ottawa and Winnipeg rivers.  Thus, the contract provides a strong incentive for the consortium to dispose of uncharacterized legacy wastes in the NSDF since it’s the only project on the table.

Myth #2: It’s a “sound project from an engineering point of view.”

The engineered containment mound is expected to disintegrate within a few hundred years and the contents flow out of the mound into the surrounding wetlands that drain into the Ottawa River. The NSDF draft environmental impact statement includes 25 occurrences of the phrase “liner and cover failure as a result of normal evolution” and three occurrences of the phrase “inevitable failure of the cover.”  The “bathtub scenario” is mentioned 30 times in the draft EIS. It is projected to occur in the year 2400 when the cover fails, water enters the mound and overflows, and takes contaminants into Perch Creek and the Ottawa River. The Performance Assessment for the NSDF includes a graphic illustration of the bathtub scenario, a table listing quantities of radionuclides flowing out of the mound into the Ottawa River, and a pie chart showing estimated doses of various radionuclides to an infant downstream in Pembroke. Given the expected eventual disintegration of the mound and migration of its contents into the Ottawa River, it would seem to be inappropriate to refer to the project as “a sound proposal from an engineering point of view.” 

The image below is a simulation of the “bathtub effect” from the Radio Canada Decouverte documentary “Chalk River Heritage.”

Updated list of First Nations and Municipal Resolutions against the CNL’s current plans for nuclear waste dumps

May 27, 2021

Assembly of First Nations resolution is here: http://www.ccnr.org/AFN_Resolution_2017.pdf

Example resolution in English:

Montreal Municipal Council’s unanimous resolution (press release and full resolution): https://cmm.qc.ca/communiques/depotoir-nucleaire-a-chalk-river-la-cmm-soppose-au-projet/

City of Ottawa requests a regional assessment of radioactive waste disposal projects in the Ottawa Valley

The City of Ottawa is requesting a regional assessment of radioactive waste disposal projects in the Ottawa Valley under Canada’s new Impact Assessment Act. This review, if undertaken as requested, would address cumulative impacts of radioactive waste projects planned for the Ottawa Valley. It would be conducted by a committee appointed for the task by the Minister of Environment and Climate Change or by the Impact Assessment Agency.

Hendrickson: Council can do more to protect the Ottawa River from radioactive leaks (Ottawa Citizen)

Canadian Nuclear Laboratories’ plan for a radioactive waste landfill and a nuclear reactor disposal facility upstream from Ottawa must be rethought. Our local politicians should insist on it.Author of the article:Ole HendricksonPublishing date:Apr 13, 2021  •  

An aerial view of Chalk River laboratories on the shores of the Ottawa River.
An aerial view of Chalk River laboratories on the shores of the Ottawa River. SunMedia

Canadian Nuclear Laboratories (CNL) is planning a radioactive waste landfill and a nuclear reactor disposal facility near the Ottawa River, upstream from Ottawa and many other communities.

CNL claims these plans would be an improvement over the status quo. How credible is that claim? While a landfill might help in the short term, exposing wastes to extreme weather events is risky. In the longer term, CNL’s own reports suggest that our descendants could be living downstream from a leaking and disintegrating pile.

CNL says 10 per cent of the landfill’s radioactive waste would be imported. That would mean 100,000 tonnes of a total of one million tonnes: 50,000 tonnes from other contaminated federal nuclear sites in Manitoba, southern Ontario and Quebec; and another 50,000 tonnes of commercial wastes from across Canada.

Ottawa’s environmental protection committee recently heard from dozens of groups and individuals opposed to CNL’s plans. The committee passed a motion urging CNL to stop transferring radioactive waste from other provinces to the Chalk River federal site.

The remaining waste would be buildings and soil contaminated by nuclear operations at Chalk River since 1945, and waste containers already stored there. Once in the giant landfill, the containers would rust and disintegrate. The concentrated radioactive wastes in them would mingle with the soil and other materials. The result: a radioactive mess where it’s impossible to tell what’s what or to ever separate or extract the more toxic elements if things go wrong.

Meanwhile, the landfill would release large amounts of tritium which, when swallowed or breathed in, increases the risk of cancer and other diseases.

One way it could go wrong, described in CNL’s own report, is called the bathtub scenario. The top cover of the landfill is breached, the base fills up with water from rain and snow, and the now-contaminated precipitation overflows downhill to the Ottawa River a kilometre away.

CNL claims the landfill’s liner is good for 550 years. Many are skeptical of this claim. But eventually it is certain to fail.

Even after hundreds of years, the landfill would contain radioactive forms of plutonium, radium, polonium, uranium, thorium, chlorine, iodine and more. These radioactive substances take thousands to billions of years to decay. The landfill would also hold dioxins, PCBs, asbestos, mercury, arsenic and lead.

Nearby, CNL plans to “entomb” the Nuclear Power Demonstration (NPD) reactor that was shut down in 1987. Instead of removing the reactor, it would fill it with cement and grout. Like the landfill idea, this would leave no option for removing wastes once they start to leak into groundwater and the Ottawa River.

Both the proposed landfill and the NPD reactor site are on fractured bedrock with high rates of groundwater movement into the river.

In my presentation to Ottawa‘s environment committee I outlined a better approach:

• Stop transferring wastes from other federal nuclear sites to Chalk River;

• Dismantle (do not entomb) the NPD reactor;

• Upgrade the existing Chalk River groundwater treatment facilities to fully capture plumes of pollution coming from areas where wastes (even reactor cores) were dumped in the past;

• Remove the wastes that are the sources of these plumes, analyze them, repackage them, record the results, and put the packages in above-ground storage units as an interim measure; and

• Find a site well away from the river with stable, solid rock for an underground repository that can isolate long-lived radioactive wastes from the biosphere.

Ottawa’s environment committee has recognized this potential threat to our drinking water by requesting a regional impact assessment of radioactive disposal projects in the Ottawa Valley. This would fall under the federal minister of environment and the 2019 Impact Assessment Act.

Let’s hope city council agrees and claims a place at the table as decisions are made that will affect countless future generations of Ottawa residents.

Ole Hendrickson, PhD., is an environmental scientist living in Ottawa.

Hill Times Letter to the Editor ~ We need parliamentarians to stop project, prevent Ottawa River from being permanently contaminated by gigantic radioactive landfill

January 18, 2021

Re “CNL working to accomplish responsible action in managing Canada’s nuclear research and development legacy” (The Hill Times, Letters to the Editor, December 14, 2020).

https://www.hilltimes.com/2021/01/18/278089/278089

This letter from Joe McBrearty, President and CEO of Canadian Nuclear Laboratories (CNL) deepens my concern about the handling of Canada’s $8 billion nuclear waste liability. 

Mr. McBrearty claims that the Chalk River Mound beside the Ottawa River, 150 km north of Ottawa-Gatineau, “will contain only low-level radioactive waste which contains radionuclides that require isolation and containment for only a few hundred years.”

Unfortunately this claim does not stand up to scrutiny.

Last month CNL published its final environmental impact statement listing a partial inventory of radionuclides that would go into the gigantic five-to-seven story radioactive mound (aka the “NSDF”).

Twenty-five out of the 30 radionuclides listed in the inventory are long-lived, with half-lives ranging from four centuries to more than four billion years. To take just one example, the man-made radionuclide, Neptunium-237, has a half-life of 2 million years such that, after 2 million years have elapsed, half of the material will still be radioactive. 

The inventory includes four isotopes of plutonium, one of the most deadly radioactive materials known, if inhaled or ingested.

It is incorrect to say that these materials “require isolation and containment for only a few hundred years.” Many of them will be dangerously radioactive for more than one hundred thousand years. The International Atomic Energy Agency states that materials like this must be stored tens of meters or more underground, not in an above-ground mound.

The CNL inventory also includes a very large quantity of cobalt-60, a material that gives off so much strong gamma radiation that lead shielding must be used by workers who handle it in order to avoid dangerous radiation exposures. The International Atomic Energy Agency considers high-activity cobalt-60 sources to be “intermediate-level waste” and specifies that they must be stored underground. Addition of high-activity cobalt-60 sources means that hundreds of tons of lead shielding would be disposed of in the mound along with other hazardous materials such as arsenic, asbestos, PCBs, dioxins and mercury.


CNL’s environmental impact statement describes several ways that radioactive materials would leak into surrounding wetlands that drain into the Ottawa River during filling of the mound and after completion. It also describes CNL’s intent to pipe water polluted with tritium and other radioactive and hazardous substances from the waste treatment facility directly into Perch Lake which drains into the Ottawa River.

I stand by my original conclusion: We need parliamentarians to step up now to stop this deeply flawed project and prevent the Ottawa River from being permanently contaminated by a gigantic, leaking radioactive landfill that would do little to reduce Canada’s $8 billion nuclear waste liability.

Letter to the editor published in the Hill Times Monday January 18, 2021

Hill Times letter ~ No, not all nuclear materials and by-products are safely stored in a highly regulated environment

The Hill Times, Monday, Jan. 11, 2021
Letters / opinions
No, not all nuclear materials and by-products are safely stored in a highly regulated environment, says letter writer (https://www.hilltimes.com/2021/01/11/276503/276503)

Re: “We cannot afford to be naive about climate change—renewables and nuclear must work together,” by John Gorman, The Hill Times, Dec. 14, 2020.

Mr. Gorman states “the nuclear industry is the only energy industry that can account for all its by-products. While fossil-fuel emissions go into the atmosphere and other industrial waste goes to landfill, all nuclear materials and by-products are safely stored, managed, and monitored in a highly regulated environment.”

Mr. Gorman appears to be unaware that all CANDU nuclear reactors routinely emit large volumes of radioactive water vapour and other radioactive gases into the atmosphere. CANDU reactors also routinely emit radioactive materials into water bodies (including drinking water sources) such as tritium, carbon-14 and radioactive cesium, strontium and cobalt.

There are numerous leaking radioactive waste areas on the Chalk River Laboratories site north-west of Ottawa-Gatineau on the Ottawa River. These leaking waste sites were described in detail in an Ottawa Citizen article in 2011 by Ian McLeod, entitled “Chalk River’s Toxic Legacy.”

The multinational consortium running Chalk River Laboratories is planning to build a gigantic above-ground landfill for one million tonnes of radioactive waste including plutonium and other materials that would remain radioactive for more than 100,000 years. This way of dealing with radioactive waste contravenes international safety standards and best practices.

The consortium’s own studies show that the mound would leak during operation and after closure. The mound is expected to eventually disintegrate in a process referred to as “normal evolution” described in a study called the “Performance Assessment,” produced by the proponent as part of a protracted and controversial environmental assessment that is ongoing.

So much for Mr. Gorman’s assertion that “all nuclear materials and by-products are safely stored, managed, and monitored in a highly regulated environment.”

Lynn Jones

Ottawa, Ont.

Frequently Asked Questions

The gigantic Chalk River Mound (the so-called ‘NSDF’) would not reduce Canada’s radioactive waste liabilities and could in fact increase them

The NSDF “Licensed Inventory” (Table 13 in the NSDF Waste Acceptance Criteria), if followed by the proponent, would only allow disposal of a tiny fraction of the Government of Canada’s legacy nuclear waste.  The NSDF would yield virtually no reduction in the federal nuclear legacy liability despite the expenditure of hundreds of millions of tax dollars. 


Liabilities could also increase, because a giant pile of leaking radioactive waste would be difficult to remediate, and remediation costs could exceed those of managing the wastes had they not been put in the mound.

For a detailed analysis see this post: https://concernedcitizens.net/2020/10/06/the-government-of-canadas-radioactive-wastes-costs-and-liabilities-growing-under-public-private-partnership/

Why is there so much plutonium at Chalk River?

October 25, 2020

A consortium of private multinational corporations is proposing to create a giant mound of radioactive wastes at Chalk River, Ontario, less than a kilometer from the Ottawa River.  According to the draft Environmental Impact Statement (EIS) the proposed mega-dump will house a rather large quantity of plutonium.

What is plutonium and why should we worry about it?

Plutonium is a human-made radioactive element that is created as a byproduct in nuclear reactors. The first reactors were built to produce plutonium for use as a nuclear explosive in atomic weapons. Plutonium can also be fabricated into fuel elements for nuclear reactors.

Plutonium remains radioactive for tens of thousands of years after it is created.  It comes in several different varieties or “isotopes”.  The most abundant varieties are plutonium-239, with a half-life of 24,000 years; and plutonium-240, with a half-life of 6,600 years.  The half-life is the time required for half of the atoms to undergo radioactive disintegration. When a plutonium atom disintegrates it is transformed into another radioactive material, sometimes one with a much longer half-life.

All isotopes of plutonium are highly toxic. Even very small doses can lead to radiation-induced illnesses such as cancer, often resulting in death.

Why is there plutonium at Chalk River?

The decision to build the Chalk River Laboratories (CRL) was taken in Washington, D.C. in 1944.  Canada, Great Britain and the United States agreed to build the facility as part of an effort to produce plutonium for bombs.  In fact, plutonium produced at CRL played a role in both the US and UK nuclear weapons programs.

During the late 1940s, British scientists carried out all necessary pilot plant work at Chalk River to design their own large plutonium production plant at Windscale, England.  Plutonium produced at CRL arrived in England just months before the first British nuclear explosion took place in Australia in 1952.

For three decades, plutonium produced in Canadian research reactors was sold to the U.S. military to help finance the Chalk River Laboratories.  A reprocessing plant at Chalk River was built to extract plutonium from irradiated nuclear fuel dissolved in nitric acid. It was shut down in 1954, but irradiated fuel containing Canadian plutonium was shipped to the U.S. until the mid-1970s.  In all, at least 250 kg of plutonium was sold to the U.S. for nuclear weapons and warheads.

Three buildings central to plutonium production are slated for demolition

Various facilities at CRL were used in the 1940s and 1950s to extract plutonium from fuels irradiated in the NRX reactor.  In 2004, environmental assessments were initiated governing the radioactive demolition of three such structures:

•       The Plutonium Tower, used in the late 1940s to extract plutonium from fuel   rods irradiated in the NRX reactor.

•       The Plutonium Recovery Laboratory, used between 1949 and 1957 to extract plutonium isotopes from enriched fuels irradiated in the NRX reactor.

•       The Waste Water Evaporator, used between 1952 and 1958 to process radioactive liquid wastes left behind from the plutonium extraction work. Decommissioning of this facility would include: removal, treatment and storage of plutonium-bearing liquid wastes and sludge in tanks, plutonium-contaminated process lines and equipment; decontamination and removal of process equipment and processing cells for handling plutonium; removal of building structures containing plutonium residues; segregation of solid wastes and transfer of these plutonium-contaminated materials to waste management facilities at CRL.

In December 2011 the Canadian Nuclear Safety Commission gave the go-ahead for dismantling the first of these structures, the Plutonium Tower.  In 2012, changes to the Canadian Environmental Assessment Act introduced by Stephen Harper’s government made it permissible to demolish radioactively contaminated buildings without any environmental assessment (EA).

To date, only the auxiliary buildings associated with the Plutonium Tower have been decommissioned, but the Tower itself is still standing.  And as far as the Plutonium Recovery Lab and Waste Water Evaporator go, neither has been decommissioned. All these decommissioning projects will be difficult, and will generate lots of long-lived, intermediate-level waste.

These buildings are just three examples of demolition projects that would produce plutonium-contaminated rubble likely destined for the proposed megadump. Chalk River scientists were keenly interested in testing plutonium as a reactor fuel.  Some three tonnes of plutonium-based fuel elements were fabricated at Chalk River using remote handling devices called gloveboxes. Such facilities would also result in plutonium-contaminated wastes when demolished.

The draft EIS estimates that total quantities of plutonium to be placed in the planned landfill-type facility would be measured in the trillions of Becquerels. A Becquerel is a unit of radioactivity, indicating that one radioactive disintegration is taking place every second. (Every radioactive atom eventually disintegrates, or explodes, giving off one or two subatomic projectiles called “atomic radiation”. All forms of atomic radiation — alpha particles, beta particles, gamma rays, and neutrons–are damaging to living cells.)

Plutonium will inevitably leak into the Ottawa River (EIS)

The draft EIS indicates that after failure of the landfill cover, which is bound to occur at some point after abandonment, millions of Becquerels of each plutonium isotope would enter Perch Creek every year.  Perch Creek flows into the Ottawa River about 1 km away.

Canadian Coalition for Nuclear Responsibility and Concerned Citizens of Renfrew County and Area

May 2017