Part One: Port Hope Conspiracy to Hide Radioactive Waste
by Pat McNamara November 3, 2009
I do not make the following statements lightly as I’m well aware of the legal and economic ramifications if I’m proven wrong. However, I cannot stay silent because I accepted a responsibility almost six years ago to improve the conditions at the elementary school my children attended.
In the course of my duties, I found out the gymnasium and kindergarten rooms were built on radioactive waste. The Atomic Energy Control Board (now the CNSC) tested the school in 1978 and found radon levels under these rooms 125 times higher than the allowable level. They covered up the test results and never spoke of it again until I saw the radiological file on the school in April 2004.
Research over the following three years revealed that this was part of a conspiracy to hide the presence and dangers of radioactive waste throughout Port Hope. I’ve been able to trace the conspiracy back to 1966 when it originated between the Atomic Energy Control Board (AECB) and the Town of Port Hope.
Forty-three years later, the conspiracy is still active and has grown to include the following participants:
Canadian Government
Natural Resources Canada
Health Canada
Atomic Energy Control Board
Atomic Energy of Canada Limited
Canadian Nuclear Safety Commission
Province of Ontario
Ontario Ministry of the Environment
Ontario Ministry of Labour
Ontario Ministry of Health
Ontario Ministry of Education
Kawartha Pine Ridge District School Board
Town of Port Hope
Hardy Stevenson (Port Hope Peer Review)
Dr. Lesbia Smith (Consultant)
Glen Case AECL
Current & Previous Port Hope Councils
All three levels of government, the nuclear regulators and several consultants are guilty of knowingly and maliciously endangering the health and lives of our children by hiding the presence and dangers of radioactive waste in locations throughout Port Hope. The RCMP may be added to this list depending on the content of the report they received from Dr. Andrews in 1966.
The Conspiracy Begins
In 1966, the RCMP brought Dr. D.G. Andrews, Professor Emeritus, Nuclear Engineering, at the University of Toronto to Port Hope to determine if there was enough uranium around to make bombs. Dr. Andrews tested a large number of sites in and around Port Hope. The following are his comments from a 1996 paper titled: “Port Hope Radioactivity Problems” on some of the locations he tested in 1966.
West drainage ditch from Welcome (dump) down to Shoreline: “Clearly there was a steady flow of radioactive effluent leeching out and draining into the Harbour. I commented that none should ever build a dump on a hill above a Town! It was suicidal! Actually builders came and built a row of houses down to the lower level! In the 1976 crisis, the house basements were found to be high-radon and expensive remedial work had to be undertaken”.
East drainage ditch from Welcome down to Shoreline: “The first thing I noted going down the hill was a cottage which had, at its door, a reading of 10 milliroentgen per hour exposure (about 80 rems per year or 80 times the allowable level). Here the later situation was even worse. Builders built a school. In 1975, its basement was found to have high radon too, starting a stampede. The town had known about the contamination, but had cleared the construction of the school regardless”.
Port Granby Dump: “What was annoying was that trucks had carried wastes up to the dump and had left clots of radioactive material on the road measuring up to 30 milliroentgen per hour exposure (about 240 rem years or 240 times the allowable level). I recommended a change to cut and cover”.
The Refinery: “I informed the AECB that Eldorado should have a “buffer zone”. There were houses less than 50 yards from the plant showing one milliroentgen per hour exposure (about 8 rems per year or 8 times the allowable level)”.
Other Contamination: “The lower town streets, the loading bay, the local bathing beach, the water in the harbour and samples from the harbour mud showed radioactivity. Samples from farms on the hilltop also showed radioactivity”.
Dr. Andrews advised the Federal Government that it should begin cleanup of the radioactive waste as soon as possible. According to Dr. Andrews: “The AECB and the town had been interviewed in 1966-67 by myself as to the real radiation levels and their potentially damaging effects. However, urged on by potential developers and others, the town had gone ahead and permitted building right on top of the radioactivity. If the public caught on, then someone would have to pay”.
In section 2.1 of his 1996 paper, Dr Andrews states: “Detailed data were also taken in the period 1966-76 by Dr. Geoffrey Knight of the Atomic Energy Control Board. Unfortunately, his data (Dr. Knight’s) was kept out of sight”.
The AECB and the Town of Port Hope kept this deadly secret to themselves until 1975 when radon levels in St. Mary’s School were found to be 21 times higher than allowable levels.
Port Hope Council Today
The most recent episode in this cover-up took place in the past week when Port Hope Council bought and sold Dr. Power’s School without any due diligence or independent testing as they were morally and legally obligated to do.
It’s been five-and-a-half years since I saw the Dr. Powers School radiological file at Atomic Energy of Canada Limited showing the addition was build on radioactive waste. We’ve waited for the opportunity to conduct independent testing to end the debate. Once again, Port Hope Council dropped the ball.
Despite numerous presentations on our concerns about radioactive waste under Dr. Powers School, Port Hope Council always had the same reply: We can’t do anything because the school board owns the property and they won’t allow anyone to test it.
Mark Stephenson from the Town’s Peer Review team agreed with us that the soil under the addition should be tested to allay the fears of the parents. Mr. Stevenson stated: ”If parents are still concerned about the source of the radon, Council may wish to consider requesting the Kawartha Pine Ridge District School Board to have soils under the addition of the school tested for soil contamination in the near future”. (Mark Stevenson Aug.5, 2004)
Port Hope Council subsequently passed a resolution to ask the school board to allow independent testing of the school. The school board refused. Dr. Powers Parent Council made the same request and was turned down.
We kept insisting that the town take a firmer stance as they had a responsibility to protect our children. Port Hope CAO Carl Cannon solicited a legal opinion on the Town’s responsibility for ensuring the safety of our children. Mr. Cannon refused to release the legal opinion and the councilors refused to answer any questions on Dr. Powers after Mr. Cannon received it.
Port Hope Council always put the blame on the school board for not allowing testing. That excuse evaporated recently when the Town bought the school from the school board for one dollar. Instead of ordering testing as recommended by the Peer Review and as requested by Council in their earlier resolution and by the Dr. Power’s Parents Council, they sold the property one second after buying it.
Less than a month after the radioactive waste cleanup was given a five-year license, the promise of transparency disappeared like federal subsidies to Atomic Energy of Canada Limited. Why does Port Hope have a Peer Review team to protect the community if their recommendations are ignored? Why doesn’t Port Hope Council fulfill their obligations as outlined in the legal opinion they received?
Council had a chance to put an end to the Dr. Powers debate once and for all by ordering independent testing when they assumed ownership of the property. Port Hope Council had a chance to put our fears to rest and chose not to do so. They’ve avoided fulfilling their moral and legal obligations to our children and to us.
I’ve had to take this step because there is no mechanism in Canada to hold the nuclear industry, its regulators and its sycophants accountable, nor do I have the resources to commence a legal action against them. I know how powerful these organizations are, but we can’t let that deter us from doing what’s right. The only way we can protect our children and their future is to stand up and speak out, regardless of the consequences.
The following is the radiological history of Dr. Powers School in Port Hope. All of the information comes directly from the files I viewed in AECL’s office and from the files obtained from the School Board through a Freedom of Information request. The paper is quite long but it is thorough. I sincerely hope that the people responsible for this atrocity rot in hell.
Dr. Powers School 1975-79
Dr. Powers’ Elementary School was built in 1925. The gymnasium and kindergarten area were added in 1950. Unfortunately, the excavated hole for the foundation of the addition was filled back in with radioactive waste from Eldorado Nuclear.
Discovery of Radon
All schools in Port Hope were tested after radon levels 21 times higher than the regulatory level were found at St. Mary’s School. The students from St. Mary’s were moved to other schools for two years while the Canadian Government removed the radioactive waste.
The first radon testing at Dr. Powers School occurred on December 19, 1975. Follow-up testing was done on Dec. 23, 1975, Jan. 7, 12, 13, 20 and 22, 1976. Every round of testing had radon readings above the allowable level of 3pCi/L in effect in Ontario at that time.
This allowable level was set by the Ontario Ministry of Labour to protect workers in a workplace setting. It did not take into account radon’s increased risk to children because of their undeveloped immune systems and higher organ activity levels.
Ontario Ministry of Labour
The initial radon test results from Dr. Powers are contained in a February 20, 1976 letter from Dr. Aitken of the Ontario Ministry of Labour to Director of Education Mr. W.F. Thom. Dr. Aitken assures Mr. Thom that the school is safe despite radon levels over six times higher than the allowable level.
Dr. Aitken’s letter also shows the results from limited testing at George Hamilton School in Port Hope and Burnham School in Cobourg. Dr. Aitken states: “these schools were tested because there were reports that contaminated fill may have been used at these two schools as well”. There will be more on these schools later.
The next entry in the file was the July 26th, 1976 report of testing of the school and the playground for gamma radiation. The report showed elevated gamma levels along the inside of the west wall. The area along the west wall of the school was subsequently covered in asphalt which encapsulates gamma radiation.
In a December 1, 1977 letter Mr. Spence (AECB) stated that Dr. Aitken from the Ontario Ministry of Labour requested that no further action be taken at Dr. Powers School. There is no explanation given for Dr. Aitken’s termination of further testing. Dr. Aitken was still hiding the presence of the danger to our children two years after the radioactive waste was discovered.
Federal Provincial Task Force on Radioactivity
The Federal and Provincial Governments realized they had a large problem on their hands when so many buildings in Port Hope were found to be contaminated with radioactive material after testing was conducted in 1975 and 1976. They formed the Federal Provincial Task Force on Radioactivity (FPTFR): “to coordinate a national program of radioactive contamination assessment and remedial measures” (Atomic Energy Control Board, Info Bulletin 77-2)
The FPTFR states: “The primary clean-up criteria for radon daughter products, is 20 Milli Working Levels (4pCi/L). In addition, if contamination is found that was introduced by human activities, it should where practical, be removed to an approved site”. (Atomic Energy Control Board, Info Bulletin 77-2)
The new cleanup criteria the FPTFR established raised the allowable radon level from 3 to 4pCi/L or a jump of 33%. At a time when the rest of nuclear countries in the world were lowering their allowable levels, the Canadian Government went the other way.
The FPTFR continues: “In addition to the primary criteria for radon daughters, a lower investigation level is specified. The investigation level is needed because the concentration of radon and its daughter products varies widely from time to time and place to place, and therefore a measurement that is close to the clean-up criterion is insufficient by itself to indicate whether remedial action is needed. The investigation involves repeating the measurements and looking for sources of contamination”. (Atomic Energy Control Board, Info Bulletin 77-2)
The FPTFR instituted an “investigation level” of 2pCi/L which would trigger a search for the source of the elevated levels of radon. The FPTFR reasoned that 2pCi/L was indicative of man-made contamination as background levels of radon in and around Port Hope had never tested higher than 1pCi/L.
The FPTFR states: “Remedial measures start with a detailed survey of the building and its surroundings in order to locate and identify the source of the radon or gamma radiation. Any radioactive material found will be removed to an appropriate waste management site, or if this is not practical, other measures may be taken such as improving the ventilation or sealing the walls and the floor of the basement. Once remedial measures have been started, they should be continued until the radiation and radon levels have been reduced to the normal range of the background in that region, or below the criterion, whichever is lower”. (Atomic Energy Control Board, Info Bulletin 77-2)
With the exception of raising the allowable level of radon in buildings by 33%, the criteria established in this document are responsible and pragmatic. They were meant to protect people. Unfortunately, the Canadian Government seldom adhered to them.
Atomic Energy Control Board
Two-and-a-half years after the elevated radon levels were discovered, the Canadian Government finally agreed to do a detailed investigation at Dr. Powers School. The first mention of this round of testing in the file I viewed was a June 6, 1978, letter from Mr. Little, the Principal at Dr. Powers School which stated: “Dr. Aitken from the Ontario Ministry of Labour ordered a detailed survey for abnormal source of radon and to take remedial action to remove it”.
There is no reason given for Dr. Aitken’s change-of-mind about further testing and possible remediation. It is obvious that Dr. Aitken still had jurisdiction at Dr. Powers. What is not obvious is why he waited 2.5 years before he ordered testing.
The investigation was to be carried out by the Atomic Energy Control Board (AECB). Rod Hendrickson, AECB Project Co-coordinator wrote to W.F. Thom, the Director of Education for the Northumberland, Newcastle Board of Education June 8, 1978, to start the program: “The clean-up program (of Port Hope) is now well underway and Dr. Aitken has asked me to have our Program Manager conduct a detailed survey of the School Property to establish whether there is an abnormal source of radon, and if so, to take remedial action to remove it. Prior to any detailed investigation and subsequent remedial work, if required, you are requested to enter into an agreement with the Atomic Energy Control Board.”
Mr. Hendrikson is very clear in stating that the AECB would clean up the source of the radon if it was found. The letter also informed Mr. Thom that James MacLaren was contracted as program manager and that the “investigation” would be done during summer holidays.
The AECB and The School Board signed an agreement on June 22, 1978, empowering the AECB to conduct an investigation and remediation on Dr. Powers School. The Agreement begins:
“And Whereas an initial survey of the said premises indicated the presence thereon of radioactivity”.
“And Whereas the Board (AECB) and the owner (school board) consider it necessary that the Board enter upon the said premises (Dr. Powers School) and take such measures as the Board deems essential to remove or reduce the level of radioactivity present thereon”
“And Whereas the Board without acknowledging any liability to the owner is prepared to proceed with this remedial work and assume full responsibility for the costs and expenses involved”
The AECB should be producing such a very clear document today instead of trying to confuse us. This agreement clearly states that they have already determined that there is radioactive material present, though the testing they are basing this on is not identified. The AECB also assumes full responsibilities for the cost of remediation.
On July 7, 1978, Director of Education Thom wrote to Rod Hendrickson at AECB telling him that two copies of the Agreement had been signed and sent to the AECB with the understanding that one copy would be returned to the School Board.
1978 Test Results
The AECB testing at Dr. Powers School took place on July 25, 26 and August 8, 1978. The following chart shows the radon test results in Pico curies per litre (pCi/L).
Location July 25/78 July 26/78 Aug 8/78 Aug 8/78 Aug 8/78
10:30 13:30 Heater On 14:30 Fan On
Storage 2 3.3 2.4 0.5 2.0 3.0
Storage 3 1.1 - 3.0 1.4 5.0
Gymnasium 2.6 1.4 2.2 1.7 1.0
Cloak Room 3.8 1.4 3.1 3.8 1.6
Kindergarten 3.7 2.0 1.5 1.8 0.3
S-2 Sump 10.4
S-4 Sub-slab 14.3 198 276 506.9 2.0
The radon test results were included in an August 9, 1978 report from R. Beal to E.J. Chart of James MacLaren and copied to Rod Hendrickson at AECB. In his conclusion, Mr. Beal states: “Samples at S-4 (sub-slab) and in store rooms (A-1 & A-2) would appear to indicate the presence of source material beneath the slab”.
This letter leaves no doubt that the AECB knew of the presence of radioactive material under the slab supporting the gymnasium and the kindergarten room and that the levels were 126 times higher than mandated remediation levels set by the Federal Provincial Task Force on Radioactivity.
If you look at the sub-slab results in the table above, you will see that radon levels were 14.3pCi/L or 3.5 times higher than the allowable level when the hole through the slab was opened and tested on July 25. The test result the next day was 198pCi/L or 49.5 times the allowable level.
The first test done on August 8, at 10:30 registered 276pCi/L or 69 times the allowable level. The second test on August 8, was at 13:30 after the heating system was turned on. The radon level was 506pCi/L or 126 times the allowable level. Of further concern is that the radon levels were still rising when testing was stopped. r than the must be undertaken to remoThey plugged the hole in the slab and never spoke of this lethal level of radioactivity under our children again until I saw the file in April, 2004.
I have underlined 13 test results that were above the 3pCi/L regulatory level that was in place when the first radon testing was done in 1975-76. These results explain why the FPTFR raised the allowable level of radon 33% from 3pCi/L to 4pCi/L the previous year. All interior parts of the addition to the school tested between 3 and 4pCi/L. It was easier and cheaper for them to raise the allowable levels than it was for them to clean the radioactive waste from the schools and other buildings in Port Hope.
The radon level doubled in a three-hour period when the heating system was turned on and was presumably still rising. We have never found out what the actual radiation levels are beneath the school because the material beneath the slab was never tested again.
The slab under the addition could have cracked at any time during the 29 years since the Canadian Government hid the presence of the radioactive waste. The children sitting on the floor of the two rooms near the cracks would be inhaling 126 times the allowable level of radon. This level is lethal.
Despite their knowledge of this ticking time bomb, the Canadian Government ordered no monitoring, testing or inspections of Dr. Powers School for the next 29 years. This is simply not responsible behaviour for the people charged with our protection. The Canadian Government sacrificed our children to avoid their responsibility for the cleanup of the radioactive waste under the school.
These are the results of follow-up testing in December, 1978 and May, 1979.
Location December 6/78 Dec 7/78 Dec 8/78 May 4/79
Supply Room 2 2.4 0.9 1.6 0.9
Supply Room 3 0.65 0.6 0.9 1.0
Gymnasium 2.1 1.8 3.4 1.4
Kindergarten 1.9 1.9 1.6 2.8
This round of testing once again indicates the presence of abnormal sources of radon by the number of readings above the investigation level of 2 pCi/L.
The Cover-up
Glen Case of James MacLaren (Consultants), wrote a letter to the AECB File in Port Hope and Toronto on February 6, 1979 stating: “The latest set of data for 64 Ward St. is attached. Based on this winter set of samples, it would appear there is not a radon problem. Unless otherwise instructed, we will not be taking any more samples in this structure”. There is a note attached to this letter from Ted Chart (Glen Case’s associate) that he wants a couple of more samples from Dr. Powers.
Ted Chart’s February 14th 1979 letter to Glen Case states: “I’ve reviewed your preliminary report on this location. It appears the gym does not satisfy the “RASMO Criteria” (RAdiation Survey MOnitoring). I think it would be worthwhile to further sample that location if Rod (Hendrickson) hasn’t sent them (School Board) a letter”.
This was the earliest I came across Glen Case’s name in a radioactive waste file. Mr. Case is now in charge of the radioactive waste cleanup of Port Hope. Glen Case has been hiding the presence of radioactive waste at the expense of the health of Port Hope residents for 29 years.
A final round of testing took place on May 4, 1979. As can be seen from the results in the chart above, the radon level in the gymnasium had dropped to allowable levels. However, the radon level in the kindergarten now exceeded the RASMO criteria.
Rod Hendrickson (AECB) wrote a note to file on November 8, 1979 saying the final letter had been sent to the property owner and that the file was now closed. There was no copy in the file of the letter that was sent to the property owner (School Board) or to the Ontario Ministry of Labour which had ordered the survey and remediation.
On January 29, 1980, Rod Hendrickson wrote to Mr. Little, the Dr. Powers Principal. Mr. Hendrikson stated: “All readings are within the criteria established by the Federal Provincial Task Force on Radioactivity”.
There is no truth to Mr. Hendrikson’s statement. The criteria established by the Federal Provincial Task Force on Radioactivity were disregarded throughout the testing process. They found the source material under the gymnasium and kindergarten. They were mandated to remove the material and did not do so.
Freedom of Information Request
On October 13, 2005, I submitted a formal request for information to the Kawartha Pine Ridge District School Board (KPR) under the Municipal Freedom of Information and Protection of Privacy Act for:
- all the radiological files for the seven public schools in Port Hope and
- all correspondence between the nuclear regulators and the school board
The only files the School Board provided prior to 1992 was the 1976 letter from Dr. Aitken and the June 22, 1978 Legal Agreement between the School Board and the Atomic Energy Control Board. They provided no other documents for this 16 year period.
Are we to believe that the Atomic Energy Control Board kept the School Board in the dark for 14 years about the elevated levels of radon at Dr. Powers School? Or is the School Board simply not releasing the files because they are trying to hide the fact that they knowingly endangered our children?
I contacted the Privacy Commissioner on December 12, 2005, to file a complaint against the School Board for the missing documents. To date, the only additional documents they have provided were the aforementioned ones from June 8, 1978, July 7, 1978 and January 29, 1979.
It would be most enlightening to get a copy of the letter Rod Hendrikson from the Atomic Energy Control Board sent to the property owner (School Board). It is the only way we will learn whether the nuclear regulators told the School Board the truth about the radiological conditions at Dr. Powers.
I found it odd that there was no correspondence in the file we viewed to or from Dr. Aitken’s with the exception of his February, 1976, letter. Considering Dr. Aitken ordered the testing and remediation, you would think that the Atomic Energy Control Board would have sent him the results.
There was no documentation giving Dr. Powers School a clean bill of health in the file we viewed at Atomic Energy Canada Limited or in the files sent by the School Board. These and many other documents were missing from the files.
Conclusions
On the evidence presented in the files I have viewed:
The Canadian Government and the Ontario Ministry of Labour did not tell the school board about the radioactive waste under Dr. Powers School after the AECB testing in 1978.
Dr. Aitken of the Ontario Ministry of Labour and Rod Hendrickson from the Atomic Energy Control Board conspired to hide the presence of radioactive waste under Dr. Powers School from the School Board and the parents of Port Hope.
“Source material” (radioactive waste) was found under the kindergarten and gymnasium slab during the 1978 testing that exceeded the remediation levels of the Federal Provincial Task Force on Radioactivity. No cleanup was undertaken by the Canadian Government as mandated in the Federal Provincial Task Force on Radioactivity.
Dr. Aitken and Rod Hendrickson did not tell the truth to the school board and the Principal about the presence and dangers of radioactive waste at Dr. Powers School.
Dr. Aitken and Rod Hendrickson conspired to hide the radioactive waste to avoid the cost and bad publicity of having to clean up another school in Port Hope.
The Atomic Energy Control Board did not act in a responsible, legal and prudent manner after it was determined that radioactive waste was present under Dr. Powers School. They were clearly mandated by the criteria established in the Federal Provincial Task Force on Radiation to remove the radioactive material from Dr. Powers School.
Once the Atomic Energy Control Board decided they would not clean up the radioactive waste, the following steps should have been taken to ensure the safety of our children.
The Atomic Energy Control Board should have ordered further sub-slab testing in 1978 when the hole through the slab tested at 506pCi/L to determine the type of material.
Remediation work should have been ordered on the 2 store rooms that consistently have tested several times higher than the action level since 1976.
Ongoing monitoring should have been ordered since 1978 when the readings above the action level were confirmed in the store rooms and the 506pCi/L sub-slab reading were obtained.
Full disclosure should have been made to the parents and the school board about the potential severity and consequences of the problem.
None of these steps were taken. No waste cleanup, no radon monitoring, no classroom testing and no warning to the parents or school board in 29 years.
I sent the radon test results from 1978 and the four steps above to Norman Rubin, one of the foremost independent nuclear analysts in Canada. Mr. Rubin replied: “I agree completely with all four of your points, and I am happy to have you repeat that as you wish. I believe that reasonable people can disagree on whether or not it makes sense to excavate a collection of radon-emanating wastes that are (still, I assume) successfully encapsulated under the sub-floor of a school gymnasium. On the other hand, I don’t think any reasonable people would suggest that these wastes should be left there without any meaningful, ongoing monitoring program to ensure that the concrete slab encapsulating the wastes remained intact. The excessive radon levels in the school store rooms also undoubtedly deserve more attention than they are getting at present”.
Dr. Powers School 1992-96
No testing, monitoring or remediation work was performed at Dr. Powers Public School for 13 years from 1979 to 1992. There were no entries in the file we viewed at Atomic Energy Canada Limited nor did the School Board provide any correspondence for this time period.
Most of the following information came from the files the School Board provided in response to my Freedom of Information request. I also spoke to former members of the Environmental Advisory Committee in addition to researching the closure of St. John Bosco School in 1981.
The School Board gets Suspicious
In 1992, the School Board commissioned the Canadian Institute for Radiation Safety (CAIRS) to screen all of the schools within their jurisdiction for radon gas. This is the first instance of independent radiological testing at the schools.
There was no reason given for the School Board’s decision to test for radon after 13 years. It is odd that the Low Level Radioactive Waste Management Office (LLRWMO) was not asked to be involved, especially in the Port Hope schools, as they provide the service free-of-charge.
The radon measurements in 76 schools were carried out March 12-19, 1993. The Report on the radon screening project was released on May 31, 1993. CAIRS recommended that Dr. Powers School and Hastings Public School be tested more thoroughly as a follow up to the radon screening project because of elevated radon levels.
The report on the “retesting” of Dr. Powers School was released on November 2, 1993, and states: “Follow up testing at Dr. Powers Public School shows a number of readings at the intermediate level. It also shows one reading at 25 mWL, which is above the approved action level of 20 mWL. Except for one location, these readings are significantly higher than those obtained in the original screening program”. CAIRS recommended a second stage of follow up testing at Dr. Powers School.
CAIRS January 27, 1994, report on the second retesting of Dr. Powers School states: “As can be seen from the table, the second follow up testing at Dr. L.B. Powers Public School shows only one location, the Gymnasium, with a reading of 17 mWL in the intermediate range, but still close to the action level”. CAIRS recommended that remedial work be carried out at Dr. Powers to reduce the radon level.
In a letter to the School Board on February 15, 1994, CAIRS’ recommendation was that: “All cracks in the solid floor and in walls in contact with soil, openings around utility penetrations and construction joints should be identified and sealed off. For this purpose, Ener Foam, which is a polyurethane insulation material, can be used”.
The school board carried out the suggested remediation in the gymnasium only. In a letter from Jeff Berry (School Board) to Reza Moridi (CAIRS) Mr. Berry states: “The remedial work involved at Dr. L.B. Powers involved removing a 2”x 2” part of the wood baseboard and foaming in the void around the perimeter of the room (6 hours labour)”.
CAIRS’ May 29, 1994, report on the remediation work the School Board performed at Dr. Powers’ state: “As can be seen from the table, the results of all radon testing in the gymnasium are essentially the same. This suggests that the remedial work carried out in the gymnasium did not reduce the radon level in the gymnasium. CAIRS recommends that further remedial work be carried out to reduce radon levels and that once the remedial work is done, the rooms be retested”.
The School Board refused to do any further remediation work. They clearly contravened the criteria of the Federal Provincial Task Force on Radioactivity which states: Once remedial measures have been started, they should be continued until the radiation and radon levels have been reduced to the normal range of the background in that region, or below the criterion, whichever is lower”. (Atomic Energy Control Board, Info Bulletin 77-2)
End of Part One
