ML20198C829
| ML20198C829 | |
| Person / Time | |
|---|---|
| Issue date: | 12/24/1997 |
| From: | Blough A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Grimaldi R NEW JERSEY, STATE OF |
| References | |
| REF-QA-99990001-971224 99990001-97-23, NUDOCS 9801080068 | |
| Download: ML20198C829 (15) | |
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December 24. 1997 sv Docket No. 99990001- License' No. General Licensee Mr. Raymond C. Grimaldi I Chief Executive Officer *
~ Arthur Brisbane Child Treatment Center ;
State of New Jersey _ _
- Department of Human Services Div. of Montal Health Services P.O. Box 625 - 3 Farmingdale/ New Jersey 07727
SUBJECT:
TRITIUM CONTAMINATION EVENT INSPECTION NO. 99990001/97-023 j
Dear Mr. Grimaldi:
This letter is in reference to the contamination event which occurred at your facility on October 29,1997, ar.d was reported to the NRC, Region I office by Mr. John Feeney of ,
the State of New Jersey, Department of Environmentel Protect.lon (NJDEP) at approximately 10:30 a.m. on October 30,1997. Mr. Feeney indicated that a patient of '
~ the Brisbane facility had broken an exit sign containing approximately 12-curies of tritium, '
the day before. In addition, he indicated that personnel at the Brisbane facility were also i attempting to (ocate two other signs which were unaccounted for. The damaged sign was manufactured by Self Powered Lighting, Inc., of Elmsford, New York and was distributed as a generally licensed device. When the sigri was manufactured it contained five glass tubes conta;ning 5 curies each for a total 25-curies of tritium. He also reported that three of the five tubes had been damaged.
In response to the notification, two NRC inspectors and a Branch Chief were dispatched to your facility in order to gather additicaa. Information, evaluate the condnions associated
.with the breakage of the sign, and obtain wipe samples from various locations at the ,
Brisbane facility including Cottage B (where the incident took place), maintenance shed where the damaged sign was stored, maintenance shop, and the Mule Two (small utility truck) used to transport the broken tritium exit sign. Once on site, the NRC representatives
!" met with you, members of the Department of Human Services 1DHS), representatives of the NJDEP.and Envirogenics, consultants to the DHS. The NRC was informed that the damaged exit sign had been triple-bagged and moved fron, Coitage B, where the incident occurred, to a maintenance shop and subsequently to a maintenance shed located adjacent
' to the maintenance shop. In addition, all occupants'of Cottage B had been relocated, /
showered, and the building secured.
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Mr. R. C. Grimaldi 2 The NRC attended a briefing which was conducted by Mr. Feeney Upon completion of the briefing the NRC attended a meeting conducted by you for Brisbane rtoff members. Upon completion oi this meetirg, members of the NRC proceeded to obtain wipe samples from the Mule Two vehicle, the maintenance shop, maintenance shed, and Cottage B. The wipes were analyzed by the NRC Region i office. The results of our analysis are attached for your review (Enclosure 1). Results indicate that the maximum contamination occurred in the room where the sign had been demaged.
Urine bioassiya were performed by the U.S. Department of Energy, (DOE) Princeton Group.
Results indicate that ths highest dose received by an individual was 1.67E+01 (16.7 millirem). This dose wcs received by the patient who was responsible for breaking the exit sign. 10 CFR 20.1301 requires that the total effective dose equivalent to individual membora of the public from licensed operations does not exceed 0.1 rom (1 mill;slovert or 100 millirem)in a year. The dose received by the patient is substantially lower than that limit. Follow up urine bloassays have been performed by DOE of those individuals who had the highest initial uptakes. The follow up bioassay results indicate a substantial decrease in tritium content in the urine.
We received a copy of your November 12,1997 letter from NJDEP. This letter encloses urine bloassay results, follow up urine bloassay results, wipe test results and follow-up wipe test results. A copy of this letter is attached (Enclosure 2). In this letter, NJDEP concludes that contammation at the Brisbane facility had been removed. All areas have been released since the wipe analysis indicates that the amount of remaining activity is less than 1000 disintegrations per minute per 100 square centimeters.
We understand that Drisbene employees have completed a search for all exit signs containing tritium in the fecilities possession. All the signs and associated tubes had been accounted for as of November 3,1997. In addition, all these signs have been removed from various locations throughout the facility and secured. Replacement signs which do not contain tritium have been put into place.
On November 20,1997, the two NRC inspectors returned to your facility and performed additional wipes. A total of seven wipes were obtained from various locations within the facility. The wipes were analyzed by the NRC Region I office. The analysis shows that the contamination has been reduced significantly and does not exceed allowable lirnits. These results are also attached for your review (Enclosure 3). In addition, a meeting was held with you and other members of the Brisbane staff in which you indicated that you were in possession of approximately 857,55-gallor drums of radioactive contaminated waste.
On December 4,1997, Mr. Robert Bellam, Chief, Bureau of Er?vironmental/ Safety Compliance, State of New Jerset, informed this office that you properly disposed of all the drums containing radioactive contaminated waste.
OFFICIALREConDCo?Y
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'Mr. R. C. Grimaldi 3 It should be noted at this time that the NRC may have further questions or cancerns related r to this event and therefors, considers inspection No. 99990001/97 023 open. Thank you for your cooperation during this matter.
Sincerely, -
i Original Signed By:
A. Randolph Blough, Director
'- Division of Nuclear Materials Safety l'
Enclosures:
- 1. NRC Wipe Teu nesults
- 2. Letter osted November 12,1997 l
- 3. NRC Follow up Wipe Test Results cc: ,
State of New Jersey ,
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ATTACHMENT 1 RESULTS OF NRC WIPE TESiS TAKEF ON OCTOBER 30. 1997 AT THE ARTHUR BRISBANE CHIL)1 <EATMENT CENTER LOCATION TRIT 10H (H-3)
DPM PER WIPE Back of transport truck 1.6 E4 Steering wheel of truck 4.6 E3 Tables in maintenance shop 1.1 E4 Door latch and floor of maintenance shed 114 Storage bags in maintenance shed 640 Nursing services office in Cottage B (1st floor) 8.6 E3 Wall of child's bedroom in Cottage B (2nd floor) 4.6 E3 Floor of child's bedroom in Cottage B (2nd floor) 6.4 ES Four mattresses in child's bedroom in Cottage B 7.3 E5 (2nd floor)
Steps in lobby of Cottage B 2.1 E5
ATTACHMENT 2 i
[9fnic of Krfu 3 jersey Christine Todd Whitman Department of Environmental Protection Robr Lnses Division of Envitonmental Safety,liealth ar 1 Analytical Programs Radiation Protection Pue.ams Radioactive Materials Section PO Box 415 Trenton, NJ 08625 0415 Tel(609)984 5462 Fax (609)633 2210 November 12,1997 Raymond C. Grimaldi, Chief Executive ofIicer Arthur Ilrisbane Child Treatment Center State of New Jersey, Department ofituman Services Division ofMental Heahh Services PO Ilox 625 Farmingdale, New Jersey 07727
Dear Mr. Grimaldi:
Enclosed are copies of Princeton Plasma Physics Laboratories reports on the results of the close out verification wipe test analysis (Enclosures 1,2 & 3) and bio assay analysis (Enclosures 4, 5,6 & 7) collected as a result of the radioactive EXIT sign incident. -
Verification wipe samples were analyzed to demonstrate compliance with the U.S.
Nuclear Regulatory Commissions (NRCs)" Acceptable Surface Contamination Levels" for tritium 2
(113) of 1,000 dpnV100cm2 as per Regulatory Guide 1.86. The wipe tests were taken of 300cm areas to ensure that each area was adequately sampled and to also increase detection sensitivity. .
To normalize the results to dpm/100cm', divide the reported dpm value by 3 (e.g.,
600dpm/300cm' 200dpm/100cm ).2 Please note, that wipe sample (Enclosure 1, sample #1) exceeded the acceptable level. Ilowever, after additional decontamination, a follow-up wipe sample (Enclosure 2, sample #1) demonstrated that the area was ecceptable. Also, the wipe sample (Enclosure 3, sample #8) exceeded the acceptable level. This area was also decontaminated and 3 additional wipe samples were taken of the area and the results are listed (Enclosure 3; sample #s 36,37 and 38). All three results were within the NRCs guidelines of 1,000 dpnV100cm2 . Therefore, all final verification wipe test results were in compliance with NRCs " Acceptable Surface Contamination Levels" The bio assay results revealed that only three people received radiation doses that exceeded I millirem (i e., mrem) as a result of the incident. Please share these results with your
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physicians and your staff.
New Acrwy as an FoualOnewturuty Frielnwr
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Should you have any questions regarding -
the have any questions regarding the health impacteceived, .
resulting ould you you from th may call Dr. Ronald Goans of the Radiation Emergency 576 3131.
Sincerely, M
John Feeney,V License Administrator Radioactive Materials Section '
. Enclosures c: Jill Lipoti Pat Gardner 9 a
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ATTACHMENT 3 RESULTS OF NRC F0. LOW U) WI)E TESTS TAKEN ON NOVEMBER 20 1997 AT THE A11HUR 3RIS3ANE CHILD TREATMENT CENTER LOCATION TRITIUM (H 3)
OPM PER WIPE .
Table saw and work bench in maintenance shop 7 Back of transport truck 102 Floor in child's bedroom in Cottage B (2nd floor) 139 Window sill and baseboard heater in child's 109 bedroom
,1,n Cottage B (2nd floor)
Entrance floor to child's bedroom in Cottage B 15 (2nd floor)
Steps in lobby of Cottage B 59 Nursing services office (desk and floor) in 114 Cottage B (1st floor) _ ,,