Information Notice 1986-41, Evaluation of Questionable Exposure Readings of Licensee Personnel Dosimeters: Difference between revisions

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{{#Wiki_filter:SSINS No.: 6835 IN 86-41 UNITED STATES NUCLEAR REGULATORY
{{#Wiki_filter:SSINS No.: 6835 IN 86-41 UNITED STATES


COMMISSION
NUCLEAR REGULATORY COMMISSION


OFFICE OF INSPECTION
OFFICE OF INSPECTION AND ENFORCEMENT


===AND ENFORCEMENT===
WASHINGTON, D.C. 20555 June 9, 1986 IE INFORMATION NOTICE NO. 86-41:  EVALUATION OF QUESTIONABLE EXPOSURE READINGS
WASHINGTON, D.C. 20555 June 9, 1986 IE INFORMATION


NOTICE NO. 86-41: EVALUATION
OF LICENSEE PERSONNEL DOSIMETERS
 
OF QUESTIONABLE
 
EXPOSURE READINGS OF LICENSEE PERSONNEL
 
DOSIMETERS


==Addressees==
==Addressees==
:
:
All byproduct
All byproduct material licensees.
 
material licensees.


==Purpose==
==Purpose==
: This notice is (1) to alert licensees
:
This notice is (1) to alert licensees of cases reported to the NRC where


of cases reported to the NRC where questionable
questionable exposure readings have been recorded for personnel dosimetry devices


exposure readings have been recorded for personnel
used by licensee personnel and (2) to provide recipients with information on


dosimetry
evaluation methodology used by some licensees to evaluate and report such readings.


devices used by licensee personnel
It is expected that recipients will review this notice for applicability to their


and (2) to provide recipients
facilities. However, suggestions contained in this information notice do not


with information
constitute NRC requirements; therefore, no specific action or written response


on evaluation
is required.


methodology
==Description of Circumstances==
 
:
used by some licensees
The NRC has encountered a number of cases in which byproduct material licensees
 
to evaluate and report such readings.It is expected that recipients
 
will review this notice for applicability
 
to their facilities.
 
However, suggestions
 
contained
 
in this information
 
notice do not constitute
 
NRC requirements;
therefore, no specific action or written response is required.Description
 
of Circumstances:
The NRC has encountered
 
a number of cases in which byproduct
 
material licensees have received TLD or film badge reports showing a questionable
 
high-exposure
 
reading. Licensees'
evaluations
 
found such readings to be erroneous
 
since the exposure purportedly
 
was recorded on the dosimeter
 
while it was not being worn by the individual.
 
The majority of these cases have involved dosimeters
 
that were inadvertently
 
left in high-radiation
 
areas or left for long periods of time near byproduct
 
material storage containers.
 
Notwithstanding
 
the requirements
 
for proper use of personnel
 
dosimeters, many licensees
 
do not know how these cases should be evaluated
 
and reported to NRC.Discussion:
Surveys are necessary
 
to evaluate questionable
 
exposure readings on licensee personnel
 
dosimeters.
 
Improper evaluation
 
of such readings may lead to a citation for violation
 
of an NRC requirement
 
and possible enforcement
 
action.Byproduct
 
material licensees
 
should be aware of their responsibilities
 
with respect to 10 CFR Part 20.101, which requires that licensees
 
control radiation exposure to individuals
 
so that no individual
 
receives an exposure in excess of the radiation
 
dose standards.
 
10 CFR 20.201 requires that licensees
 
make or cause to be made such surveys as may be necessary
 
for the licensee to comply with the radiation
 
dose standards
 
specified
 
in 10 CFR 20.101 and that the surveys are reasonable
 
under the circumstances
 
to evaluate the extent of. radiatzorf
 
hazards that may be present. Al psedei ,tnXA rMZ lations, "survet " means sm 860604000ft


IN 86-41 June 9, 1986 evaluation
have received TLD or film badge reports showing a questionable high-exposure


of the radiation
reading. Licensees' evaluations found such readings to be erroneous since the


hazards incident to the production, use, release, disposal, or presence of radiation
exposure purportedly was recorded on the dosimeter while it was not being worn


under a specific set of conditions.
by the individual. The majority of these cases have involved dosimeters that


In some cases, the evaluation
were inadvertently left in high-radiation areas or left for long periods of time


may be supported
near byproduct material storage containers. Notwithstanding the requirements


by a physical survey. 10 CFR 20.401 requires each licensee to maintain records showing the results of surveys required by 10 CFR 20.201.The information
for proper use of personnel dosimeters, many licensees do not know how these


that has been documented
cases should be evaluated and reported to NRC.


by some licensees
Discussion:
Surveys are necessary to evaluate questionable exposure readings on licensee


that meets NRC's requirements
personnel dosimeters. Improper evaluation of such readings may lead to a


for a reasonable
citation for violation of an NRC requirement and possible enforcement action.


evaluation
Byproduct material licensees should be aware of their responsibilities with


of questionable
respect to 10 CFR Part 20.101, which requires that licensees control radiation


exposure readings is as follows: o Signed and dated statements
exposure to individuals so that no individual receives an exposure in excess


from individuals
of the radiation dose standards. 10 CFR 20.201 requires that licensees make or


present at the time of the possible false exposure, including
cause to be made such surveys as may be necessary for the licensee to comply


helpers or witnesses.
with the radiation dose standards specified in 10 CFR 20.101 and that the surveys


===Such statements===
are reasonable under the circumstances to evaluate the extent of. radiatzorf
have been written by the individuals


independently
hazards that may be present. Al psedei ,tnXA  rMZ lations, "survet" means sm


and have included all pertinent
860604000ft


information
IN 86-41 June 9, 1986 evaluation of the radiation hazards incident to the production, use, release, disposal, or presence of radiation under a specific set of conditions. In some


known by them.o Documentation
cases, the evaluation may be supported by a physical survey. 10 CFR 20.401 requires each licensee to maintain records showing the results of surveys


of the Radiation
required by 10 CFR 20.201.


Safety Officer's
The information that has been documented by some licensees that meets NRC's


evaluation
requirements for a reasonable evaluation of questionable exposure readings is


and conclusions, including
as follows:
o    Signed and dated statements from individuals present at the time of the


results of interviews
possible false exposure, including helpers or witnesses. Such statements


of personnel
have been written by the individuals independently and have included


involved, records of telephone conversations, examination
all pertinent information known by them.


of equipment (when applicable), surveys, and corrective
o    Documentation of the Radiation Safety Officer's evaluation and conclusions, including results of interviews of personnel involved, records of telephone


action to prevent recurrence.
conversations, examination of equipment (when applicable), surveys, and


o Estimation
corrective action to prevent recurrence.


of the actual exposure by measurement, calculation, or other appropriate
o    Estimation of the actual exposure by measurement, calculation, or other


methods.In addition to the above, reviews of existing documentation
appropriate methods.


have been made to ensure that records are complete and up to date. Such documents
In addition to the above, reviews of existing documentation have been made to


include utili-zation logs, dosimeter
ensure that records are complete and up to date. Such documents include utili- zation logs, dosimeter logs, exposure files, equipment maintenance checks, cali- brations, and training.


logs, exposure files, equipment
If a Radiation Safety Officer's evaluation of a high TLD or film badge reading


maintenance
cannot conclusively prove that the reading was erroneous, a report is made


checks, cali-brations, and training.If a Radiation
to the NRC in accordance with 10 CFR 20.403 or 20.405.


Safety Officer's
No written response to this information notice is required. If you have any


evaluation
questions regarding this matter, please contact the Regional Administrator


of a high TLD or film badge reading cannot conclusively
of the appropriate NRC regional office or this office.


prove that the reading was erroneous, a report is made to the NRC in accordance
James;G. Partlow, Director


with 10 CFR 20.403 or 20.405.No written response to this information
Divishon of Inspection Programs


notice is required.
Office of Inspection and Enforcement


If you have any questions
===Technical Contact:===


regarding
===H. Karagiannis, IE===
                      (301) 492-9655 Attachment:  List of Recently Issued IE Information Notices


this matter, please contact the Regional Administrator
Attachment 1 IN 86-41 June 9, 1986 LIST OF RECENTLY ISSUED


of the appropriate
IE INFORMATION NOTICES


NRC regional office or this office.James;G. Partlow, Director Divishon of Inspection
Information                                    Date of


Programs Office of Inspection
Notice No.    Subject                        Issue    Issued to


and Enforcement
86-32          Request For Collection Of      6/6/86  All power reactor


Technical
Sup. 1        Licensee Radioactivity                  facilities holding


Contact: H. Karagiannis, IE (301) 492-9655 Attachment:
Measurements Attributed To              an OL or CP
List of Recently Issued IE Information


Notices
The Chernobyl Nuclear Plant


Attachment
Accident


1 IN 86-41 June 9, 1986 LIST OF RECENTLY ISSUED IE INFORMATION
86-40          Degraded Ability To Isolate    6/5/86  All power reactor


NOTICES Information
The Reactor Coolant System                facilities holding


Date of Notice No. Subject Issue Issued to 86-32 Sup. 1 86-40 86-39 86-38 86-37 Request For Collection
From Low-Pressure Coolant              an OL or CP


===Of Licensee Radioactivity===
Systems in BWRS
Measurements


Attributed
86-39          Failures Of RHR Pump Motors    5/20/86  All power reactor


To The Chernobyl
And Pump Internals                      facilities holding


Nuclear Plant Accident Degraded Ability To Isolate The Reactor Coolant System From Low-Pressure
an OL or CP


Coolant Systems in BWRS Failures Of RHR Pump Motors And Pump Internals Deficient
86-38          Deficient Operator Actions      5/20/86  All power reactor


Operator Actions Following
Following Dual Function Valve            facilities holding


Dual Function Valve Failures Degradation
Failures                                 an OL or CP


Of Station Batteries Change In NRC Practice Regarding
86-37          Degradation Of Station         5/16/86  All power reactor


Issuance Of Confirming
Batteries                                facilities holding


Letters To Principal
an OL or CP


Contractors
86-36          Change In NRC Practice          5/16/86  All power reactor


Fire In Compressible
Regarding Issuance Of                    facilities holding


Material At Dresden Unit 3 Improper Assembly, Material Selection, And Test Of Valves And Their Actuators Information
Confirming Letters To                    an OL or CP


For Licensee Regarding
Principal Contractors


The Chernobyl Nuclear Plant Accident 6/6/86 6/5/86 5/20/86 5/20/86 5/16/86 5/16/86 5/15/86 5/13/86 5/6/86 All power reactor facilities
86-35          Fire In Compressible Material 5/15/86   All power reactor


holding an OL or CP All power reactor facilities
At Dresden Unit 3                        facilities holding


holding an OL or CP All power reactor facilities
an OL or CP


holding an OL or CP All power reactor facilities
86-34          Improper Assembly, Material    5/13/86  All power reactor


holding an OL or CP All power reactor facilities
Selection, And Test Of Valves            facilities holding


holding an OL or CP All power reactor facilities
And Their Actuators                      an OL or CP


holding an OL or CP All power reactor facilities
86-33          Information For Licensee        5/6/86  Fuel cycle licensees


holding an OL or CP All power reactor facilities
Regarding The Chernobyl                  and Priority 1 material


holding an OL or CP Fuel cycle licensees and Priority 1 material licensees 86-36 86-35 86-34 86-33 OL = Operating
Nuclear Plant Accident                  licensees


License CP = Construction
OL = Operating License


Permit}}
CP = Construction Permit}}


{{Information notice-Nav}}
{{Information notice-Nav}}

Revision as of 02:03, 24 November 2019

Evaluation of Questionable Exposure Readings of Licensee Personnel Dosimeters
ML031250043
Person / Time
Site: Beaver Valley, Millstone, Hatch, Monticello, Calvert Cliffs, Dresden, Davis Besse, Peach Bottom, Browns Ferry, Salem, Oconee, Mcguire, Nine Mile Point, Palisades, Palo Verde, Perry, Indian Point, Fermi, Kewaunee, Catawba, Harris, Wolf Creek, Saint Lucie, Point Beach, Oyster Creek, Watts Bar, Hope Creek, Grand Gulf, Cooper, Sequoyah, Byron, Pilgrim, Arkansas Nuclear, Braidwood, Susquehanna, Summer, Prairie Island, Columbia, Seabrook, Brunswick, Surry, Limerick, North Anna, Turkey Point, River Bend, Vermont Yankee, Crystal River, Haddam Neck, Ginna, Diablo Canyon, Callaway, Vogtle, Waterford, Duane Arnold, Farley, Robinson, Clinton, South Texas, San Onofre, Cook, Comanche Peak, Yankee Rowe, Maine Yankee, Quad Cities, Humboldt Bay, La Crosse, Big Rock Point, Rancho Seco, Zion, Midland, Bellefonte, Fort Calhoun, FitzPatrick, McGuire, LaSalle, 05000000, Zimmer, Fort Saint Vrain, Shoreham, Satsop, Trojan, Atlantic Nuclear Power Plant, Skagit, Marble Hill, Crane
Issue date: 06/09/1986
From: Partlow J
NRC/IE
To:
References
IN-86-041, NUDOCS 8606040004
Download: ML031250043 (3)
v • d • e


SSINS No.: 6835 IN 86-41 UNITED STATES

NUCLEAR REGULATORY COMMISSION

OFFICE OF INSPECTION AND ENFORCEMENT

WASHINGTON, D.C. 20555 June 9, 1986 IE INFORMATION NOTICE NO. 86-41: EVALUATION OF QUESTIONABLE EXPOSURE READINGS

OF LICENSEE PERSONNEL DOSIMETERS

Addressees

All byproduct material licensees.

Purpose

This notice is (1) to alert licensees of cases reported to the NRC where

questionable exposure readings have been recorded for personnel dosimetry devices

used by licensee personnel and (2) to provide recipients with information on

evaluation methodology used by some licensees to evaluate and report such readings.

It is expected that recipients will review this notice for applicability to their

facilities. However, suggestions contained in this information notice do not

constitute NRC requirements; therefore, no specific action or written response

is required.

Description of Circumstances

The NRC has encountered a number of cases in which byproduct material licensees

have received TLD or film badge reports showing a questionable high-exposure

reading. Licensees' evaluations found such readings to be erroneous since the

exposure purportedly was recorded on the dosimeter while it was not being worn

by the individual. The majority of these cases have involved dosimeters that

were inadvertently left in high-radiation areas or left for long periods of time

near byproduct material storage containers. Notwithstanding the requirements

for proper use of personnel dosimeters, many licensees do not know how these

cases should be evaluated and reported to NRC.

Discussion:

Surveys are necessary to evaluate questionable exposure readings on licensee

personnel dosimeters. Improper evaluation of such readings may lead to a

citation for violation of an NRC requirement and possible enforcement action.

Byproduct material licensees should be aware of their responsibilities with

respect to 10 CFR Part 20.101, which requires that licensees control radiation

exposure to individuals so that no individual receives an exposure in excess

of the radiation dose standards. 10 CFR 20.201 requires that licensees make or

cause to be made such surveys as may be necessary for the licensee to comply

with the radiation dose standards specified in 10 CFR 20.101 and that the surveys

are reasonable under the circumstances to evaluate the extent of. radiatzorf

hazards that may be present. Al psedei ,tnXA rMZ lations, "survet" means sm

860604000ft

IN 86-41 June 9, 1986 evaluation of the radiation hazards incident to the production, use, release, disposal, or presence of radiation under a specific set of conditions. In some

cases, the evaluation may be supported by a physical survey. 10 CFR 20.401 requires each licensee to maintain records showing the results of surveys

required by 10 CFR 20.201.

The information that has been documented by some licensees that meets NRC's

requirements for a reasonable evaluation of questionable exposure readings is

as follows:

o Signed and dated statements from individuals present at the time of the

possible false exposure, including helpers or witnesses. Such statements

have been written by the individuals independently and have included

all pertinent information known by them.

o Documentation of the Radiation Safety Officer's evaluation and conclusions, including results of interviews of personnel involved, records of telephone

conversations, examination of equipment (when applicable), surveys, and

corrective action to prevent recurrence.

o Estimation of the actual exposure by measurement, calculation, or other

appropriate methods.

In addition to the above, reviews of existing documentation have been made to

ensure that records are complete and up to date. Such documents include utili- zation logs, dosimeter logs, exposure files, equipment maintenance checks, cali- brations, and training.

If a Radiation Safety Officer's evaluation of a high TLD or film badge reading

cannot conclusively prove that the reading was erroneous, a report is made

to the NRC in accordance with 10 CFR 20.403 or 20.405.

No written response to this information notice is required. If you have any

questions regarding this matter, please contact the Regional Administrator

of the appropriate NRC regional office or this office.

James;G. Partlow, Director

Divishon of Inspection Programs

Office of Inspection and Enforcement

Technical Contact:

H. Karagiannis, IE

(301) 492-9655 Attachment: List of Recently Issued IE Information Notices

Attachment 1 IN 86-41 June 9, 1986 LIST OF RECENTLY ISSUED

IE INFORMATION NOTICES

Information Date of

Notice No. Subject Issue Issued to

86-32 Request For Collection Of 6/6/86 All power reactor

Sup. 1 Licensee Radioactivity facilities holding

Measurements Attributed To an OL or CP

The Chernobyl Nuclear Plant

Accident

86-40 Degraded Ability To Isolate 6/5/86 All power reactor

The Reactor Coolant System facilities holding

From Low-Pressure Coolant an OL or CP

Systems in BWRS

86-39 Failures Of RHR Pump Motors 5/20/86 All power reactor

And Pump Internals facilities holding

an OL or CP

86-38 Deficient Operator Actions 5/20/86 All power reactor

Following Dual Function Valve facilities holding

Failures an OL or CP

86-37 Degradation Of Station 5/16/86 All power reactor

Batteries facilities holding

an OL or CP

86-36 Change In NRC Practice 5/16/86 All power reactor

Regarding Issuance Of facilities holding

Confirming Letters To an OL or CP

Principal Contractors

86-35 Fire In Compressible Material 5/15/86 All power reactor

At Dresden Unit 3 facilities holding

an OL or CP

86-34 Improper Assembly, Material 5/13/86 All power reactor

Selection, And Test Of Valves facilities holding

And Their Actuators an OL or CP

86-33 Information For Licensee 5/6/86 Fuel cycle licensees

Regarding The Chernobyl and Priority 1 material

Nuclear Plant Accident licensees

OL = Operating License

CP = Construction Permit


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