Information Notice 1992-38, Implementation Date for the Revision to the EPA Manual of Protective Action Guides and Protective Actions for Nuclear Incidents: Difference between revisions

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{{#Wiki_filter:C's2 UNITED STATES NUCLEAR REGULATORY
{{#Wiki_filter:C's2 UNITED STATES


COMMISSION
NUCLEAR REGULATORY COMMISSION


OFFICE OF NUCLEAR REACTOR REGULATION
OFFICE OF NUCLEAR REACTOR REGULATION &
                OFFICE OF NUCLEAR MATERIAL SAFETX.AND SAFEGUARDS


&OFFICE OF NUCLEAR MATERIAL SAFETX.AND
WASHINGTON;b c.;-20555 May 129219Rt 26  P2:27 NRC INFORMATION NOTICE 92-38:  IMPLEMENTATION DATE FOR THE REVISION TO THE EPA


SAFEGUARDS
MANUAL OF PROTECTIVE ACTION GUIDES AND PROTECTIVE


WASHINGTON;b
c.;-20555 May 129219Rt 26 P2:27 NRC INFORMATION
NOTICE 92-38: IMPLEMENTATION
DATE FOR THE REVISION TO THE EPA MANUAL OF PROTECTIVE
===ACTION GUIDES AND PROTECTIVE===
ACTIONS FOR NUCLEAR INCIDENTS
ACTIONS FOR NUCLEAR INCIDENTS


==Addressees==
==Addressees==
All holders of operating
All holders of operating licenses or construction permits for nuclear power


licenses or construction
reactors, non-power reactors and materials licensees authorized to possess


permits for nuclear power reactors, non-power
large quantities of radioactive material.
 
reactors and materials
 
licensees
 
authorized
 
to possess large quantities
 
of radioactive
 
material.


==Purpose==
==Purpose==
The U.S. Nuclear Regulatory
The U.S. Nuclear Regulatory Commission (NRC) is issuing this information notice


Commission (NRC) is issuing this information
to notify addressees of a recent Commission decision that will affect the


notice to notify addressees
implementation date for the revised U.S. Environmental Protection Agency (EPA)
Manual of Protective Action Guides and Protective Actions for Nuclear Incidents.


of a recent Commission
It is expected that recipients will review the information for applicability to


decision that will affect the implementation
their facilities and consider actions as appropriate. However, suggestions


date for the revised U.S. Environmental
contained in this information notice are not NRC requirements; therefore, no


Protection
specific action or written response is required.


Agency (EPA)Manual of Protective
==Description of Circumstances==
On November 19, 1991, and January 23, 1992, the NRC issued Information Notices


Action Guides and Protective
91-72, "Issuance of a Revision to the EPA Manual of Protective Action Guides


Actions for Nuclear Incidents.
and Protective Actions for Nuclear Incidents" and 92-08, "Revised Protective


It is expected that recipients
Action Guidance for Nuclear Incidents," respectively, to notify licensees of a


will review the information
revision to EPA's Manual of Protective Action Guides and Protective Actions for


for applicability
Nuclear Incidents. EPA revised this manual to incorporate the current health


to their facilities
physics practice for dose units and to expand the applicability of the guidance


and consider actions as appropriate.
to include nuclear incidents for both commercial and Federal facilities.


===However, suggestions===
The NRC agreed with EPA's recommendation to implement the manual revision
contained


in this information
concurrently with the revised Part 20 of Title 10 of the Code of Federal


notice are not NRC requirements;
Regulations. The original dates for implementing the revised Part 20 were
therefore, no specific action or written response is required.Description


of Circumstances
January 1, 1993, for NRC licensees, and January 1, 1994, for Agreement States.


On November 19, 1991, and January 23, 1992, the NRC issued Information
On February 12, 1992, the Commission informed the NRC staff of its decision to


Notices 91-72, "Issuance
delay the required implementation date of 10 CFR Part 20 for a period of 1 year


of a Revision to the EPA Manual of Protective
to January 1, 1994. The staff has initiated the necessary rulemaking to


Action Guides and Protective
reflect this delay. To be consistent with the change in the date for implemen- ting 10 CFR Part 20, the addressees may delay for up to 1 year their implementa- tion of the revision to EPA's Manual of Protective Action Guides and Protective


Actions for Nuclear Incidents" and 92-08, "Revised Protective
9205050256    p1R      ;        < tt- e        -O3'      A1oSJ2..


Action Guidance for Nuclear Incidents," respectively, to notify licensees
PDrD/e-d // C-.


of a revision to EPA's Manual of Protective
Attachment I                                                                        Attachment 2 IN 92-38                                                                            IN 92-38 May 12, 1992                                                                        Nay 12. 1992 Page I of I                                                                        Page I of I


Action Guides and Protective
LIST OF RECENTLY ISSUED                                                            LIST OF RECENTLY ISSUED


Actions for Nuclear Incidents.
NRC INFORMATION NOTICES                                                          NMSS INFORMATION NOTICES


EPA revised this manual to incorporate
the current health physics practice for dose units and to expand the applicability
of the guidance to include nuclear incidents
for both commercial
and Federal facilities.
The NRC agreed with EPA's recommendation
to implement
the manual revision concurrently
with the revised Part 20 of Title 10 of the Code of Federal Regulations.
The original dates for implementing
the revised Part 20 were January 1, 1993, for NRC licensees, and January 1, 1994, for Agreement
States.On February 12, 1992, the Commission
informed the NRC staff of its decision to delay the required implementation
date of 10 CFR Part 20 for a period of 1 year to January 1, 1994. The staff has initiated
the necessary
rulemaking
to reflect this delay. To be consistent
with the change in the date for implemen-ting 10 CFR Part 20, the addressees
may delay for up to 1 year their implementa- tion of the revision to EPA's Manual of Protective
===Action Guides and Protective===
9205050256 p1R ; < tt- e -O3' A1oSJ2..PDrD/e-d // C -.
Attachment
I IN 92-38 May 12, 1992 Page I of I Attachment
2 IN 92-38 Nay 12. 1992 Page I of I LIST OF RECENTLY ISSUED NRC INFORMATION
NOTICES LIST OF RECENTLY ISSUED NMSS INFORMATION
===NOTICES Information===
Information
Information


Notice No.92-37 92-16, Supp. 1 92-36 92-35 92-34 92-33 92-32 Subject Implementation
Information                                      Date of                               Infonration                                 Date of
 
of the Deliberate
 
Misconduct
 
Rule Loss of Flow from the Re-sidual Heat Removal Pump during Refueling
 
Cavity Draindown Intersystem
 
===LOCA Outside Containment===
Higher Than Predicted
 
Ero-sion/Corrosion
 
in Unisol-able Reactor Coolant Pres-sure Boundary Piping Inside Containment
 
at A Boiling Water Reactor New Exposure Limits for Airborne Uranium and Thorium Increased
 
Instrument
 
Response Time When Pressure Dampening Devices are Installed Problems Identified
 
with Emergency
 
Ventilation
 
Systems for Near-Site (Within 10Miles) Emer-gency Operations
 
Facili-ties and Technical
 
Support Centers Date of Issuance 05/08/92 05/07/92 05/07/92 05/06/92 Issued to All Nuclear Regulatory
 
Commission
 
Licensees.
 
All holders of OLs or CPs for nuclear power reactors.All holders of OLs or CPs for nuclear power reactors.All holders of OLs or CPs for nuclear power reactors.Infonration
 
Notice No.92-37 92-34 92-14 92-11 92-10 Subject Implementation
 
of the Deliberate
 
Misconduct
 
Rule New Exposure Limits for Airborne Uranium and Thorium Uranium Oxide Fires at Fuel Cycle Facilities
 
Soil and Water Contamina- tion at Fuel Cycle Facil-ities Brachytherapy
 
Incidents Involving
 
Iridium-192
 
===Wire Used In Endobronchial===
Treatments
 
Revised Protective
 
Action Guidance for Nuclear Inci-dents New Reporting
 
===Requirements===
for Contamination
 
===Events at Medical Facilities===
(10 CFR 30.50)Date of Issuance Issued to 05/08/92 All Nuclear Regulatory
 
Commission
 
Licensees.
 
05/06/92 All licensees
 
whose opera-tions can cause airborne concentrations
 
of uranium and thorium.02/21/92 All fuel cycle and uranium fuel research and develop-ment licensees.
 
02/O5/92 All uranium fuel fabrica-tion and conversion
 
facil-itles.01/31/92 All Nuclear Regulatory
 
Com-mission (NRC) licensees authorized
 
to use iridium-192 for brachy-therapy; manufacturers
 
and distributors
 
of iridium-192 wire for use in brachy-therapy.01/23/92 All fuel cycle and materi-als licensees
 
authorized
 
to possess large quanti-ties of radioactive
 
materi-ial.12/27/91 All licensees
 
authorized
 
to use byproduct
 
materials for human use.05/06/92 All licensees


who e opera-tions can cause a rborne concentrations
Notice No.            Subject                    Issuance Issued to                    Notice No.        Subject                    Issuance  Issued to


of uranium and thorium.04/30/92 All holders of OLs or CPs for nuclear power reactors.92-08 04/29/92 All holders of OLs or CPs for nuclear power reactors.91-86 OL
92-37          Implementation of the            05/08/92 All Nuclear Regulatory      92-37      Implementation of the            05/08/92 All Nuclear Regulatory


* Operating
Deliberate Misconduct Rule                Commission Licensees.                    Deliberate Misconduct Rule                Commission Licensees.


License CP -Construction
92-16,          Loss of Flow from the Re-        05/07/92 All holders of OLs or CPs


Permit
Supp. 1        sidual Heat Removal Pump                  for nuclear power reactors.  92-34      New Exposure Limits for          05/06/92  All licensees whose opera- during Refueling Cavity                                                            Airborne Uranium and                      tions can cause airborne


IN 92-34 May 6, 1992 The new revision to NRC Regulatory
Draindown                                                                          Thorium                                    concentrations of uranium


Guide 8.25, "Air Sampling In The Workplace," gives guidance for setting up an air-sampling
and thorium.


program that can be used to estimate internal dose from airborne activity.
92-36          Intersystem LOCA Outside        05/07/92 All holders of OLs or CPs


The associated
Containment                              for nuclear power reactors.  92-14      Uranium Oxide Fires at          02/21/92  All fuel cycle and uranium


NUREG-1400
Fuel Cycle Facilities                      fuel research and develop-
explains acceptable
92-35          Higher Than Predicted Ero-      05/06/92 All holders of OLs or CPs                                                          ment licensees.


implementation
sion/Corrosion in Unisol-                for nuclear power reactors.


of methods described
able Reactor Coolant Pres-                                            92-11      Soil and Water Contamina-        02/O5/92  All uranium fuel fabrica- sure Boundary Piping Inside                                                        tion at Fuel Cycle Facil-                  tion and conversion facil- Containment at A Boiling                                                          ities                                      itles.


in Regulatory
Water Reactor


Guide 8.25.In addition, Table 2 of Appendix B to 10 CFR 20.1001-20.2401 places much more stringent
92-10       Brachytherapy Incidents          01/31/92  All Nuclear Regulatory Com-
92-34          New Exposure Limits for          05/06/92 All licensees who e opera-              Involving Iridium-192 Wire                mission (NRC) licensees


limits on effluent concentrations
Airborne Uranium and                      tions can cause a rborne                Used In Endobronchial                      authorized to use


for soluble uranium and thorium in water, and for thorium and insoluble
Thorium                                    concentrations of uranium               Treatments                                  iridium-192 for brachy- andthorium.                                                                        therapy; manufacturers and


uranium in air. The reduction
distributors of iridium-192
92-33            Increased Instrument            04/30/92 All holders of OLs or CPs                                                          wire for use inbrachy- Response Time When                        for nuclear power reactors.                                                        therapy.


in the allowable
Pressure Dampening


effluent concentrations
Devices are Installed                                                  92-08      Revised Protective Action        01/23/92 All fuel cycle and materi- Guidance for Nuclear Inci-                als licensees authorized


to about a hundredth
92-32            Problems Identified with        04/29/92  All holders of OLs or CPs              dents                                      to possess large quanti- Emergency Ventilation                    for nuclear power reactors.                                                        ties of radioactive materi- Systems for Near-Site                                                                                                        ial.


of the former values may necessitate
(Within 10Miles) Emer- gency Operations Facili-                                              91-86        New Reporting Requirements      12/27/91  All licensees authorized


changes in procedures
ties and Technical Support                                                        for Contamination Events at                to use byproduct materials


or monitoring
Centers                                                                            Medical Facilities                        for human use.


methods, or may even necessitate
(10 CFR 30.50)
OL


installation
* Operating License


of new effluent treatment
CP - Construction Permit


systems requiring appreciable
IN 92-34 May 6, 1992 The new revision to NRC Regulatory Guide 8.25, "Air Sampling In The Workplace,"
gives guidance for setting up an air-sampling program that can be used to


lead time to procure.This information
estimate internal dose from airborne activity. The associated NUREG-1400
explains acceptable implementation of methods described in Regulatory


notice requires no specific action or written response.
Guide 8.25.


If you have any questions
In addition, Table 2 of Appendix B to 10 CFR 20.1001-20.2401 places much more


about the information
stringent limits on effluent concentrations for soluble uranium and thorium in


in this notice, please call the technical
water, and for thorium and insoluble uranium in air. The reduction in the


contact listed below or the appropriate
allowable effluent concentrations to about a hundredth of the former values


NRC regional office.Richard E. Cunningham, Director Division of Industrial
may necessitate changes in procedures or monitoring methods, or may even


and Medical Nuclear Safety Office of Nuclear Material Safety and Safeguards
necessitate installation of new effluent treatment systems requiring


Technical
appreciable lead time to procure.


contact: Edward Shum, NMSS (301) 504-2607 Attachments:
This information notice requires no specific action or written response. If
1. List of Recently Issued NMSS Information


Notices 2. List of Recently Issued NRC Information
you have any questions about the information in this notice, please call the


Notices
technical contact listed below or the appropriate NRC regional office.


Attachment
Richard E. Cunningham, Director


1 IN 92-34 May 6, 1992 LIST OF RECENTLY ISSUED NMSS INFORMATION
Division of Industrial and


NOTICES Information
Medical Nuclear Safety


Date of Notice No. Subject Issuance Issued to 92-14 92-11 92-10 92-08 Uranium Oxide Fires at Fuel Cycle Facilities
Office of Nuclear Material Safety


Soil and Water Contamina- tion at Fuel Cycle Facil-ities Brachytherapy
and Safeguards


Incidents Involving
Technical contact:  Edward Shum, NMSS


Iridium-192
(301) 504-2607 Attachments:
1. List of Recently Issued NMSS Information Notices


===Wire Used in Endobronchial===
2. List of Recently Issued NRC Information Notices
Treatments


Revised Protective
Attachment 1 IN 92-34 May 6, 1992 LIST OF RECENTLY ISSUED


Action Guidance for Nuclear Inci-dents New Reporting
NMSS INFORMATION NOTICES


===Requirements===
Information                                      Date of
for Contamination


===Events at Medical Facilities===
Notice No.         Subject                      Issuance    Issued to
(10 CFR 30.50)Problems with Criticality


Alarm Components/Systems
92-14          Uranium Oxide Fires at            02/21/92    All fuel cycle and uranium


===Training and Supervision===
Fuel Cycle Facilities                        fuel research and develop- ment licensees.
of Individuals


Supervised
92-11          Soil and Water Contamina-        02/05/92    All uranium fuel fabrica- tion at Fuel Cycle Facil-                    tion and conversion facil- ities                                        ities.


by an Authorized
92-10          Brachytherapy Incidents          01/31/92    All Nuclear Regulatory Com- Involving Iridium-192 Wire                    mission (NRC) licensees


User 02/21/92 02/05/92 01/31/92 01/23/92 12/27/91 12/26/91 11/12/91 All fuel cycle and uranium fuel research and develop-ment licensees.
Used in Endobronchial                        authorized to use


All uranium fuel fabrica-tion and conversion
Treatments                                    iridium-192 for brachy- therapy; manufacturers and


facil-ities.All Nuclear Regulatory
distributors of iridium-192 wire for use in brachy- therapy.


Com-mission (NRC) licensees authorized
92-08        Revised Protective Action        01/23/92    All fuel cycle and materi- Guidance for Nuclear Inci-                    als licensees authorized


to use iridium-192 for brachy-therapy; manufacturers
dents                                        to possess large quanti- ties of radioactive materi- ial .


and distributors
91-86          New Reporting Requirements        12/27/91  All licensees authorized


of iridium-192 wire for use in brachy-therapy.All fuel cycle and materi-als licensees
for Contamination Events at                  to use byproduct materials


authorized
Medical Facilities                            for human use.


to possess large quanti-ties of radioactive
(10 CFR 30.50)
91-84        Problems with Criticality        12/26/91    All Nuclear Regulatory


materi-ial .All licensees
Alarm Components/Systems                      Commission (NRC) fuel


authorized
cycle licensees, interim


to use byproduct
spent fuel storage licens- ees, and critical mass


materials for human use.All Nuclear Regulatory
licensees.


Commission (NRC) fuel cycle licensees, interim spent fuel storage licens-ees, and critical mass licensees.
91-71        Training and Supervision          11/12/91    All NRC medical licensees.


All NRC medical licensees.
of Individuals Supervised


91-86 91-84 91-71}}
by an Authorized User}}


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

Latest revision as of 03:22, 24 November 2019

Implementation Date for the Revision to the EPA Manual of Protective Action Guides and Protective Actions for Nuclear Incidents
ML031200345
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, Three Mile Island, 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, Fort Saint Vrain, Shoreham, Satsop, Trojan, Atlantic Nuclear Power Plant  Entergy icon.png
Issue date: 05/26/1992
From: Cunningham R
NRC/NMSS/IMNS
To:
References
IN-92-038, NUDOCS 9205050256
Download: ML031200345 (4)


C's2 UNITED STATES

NUCLEAR REGULATORY COMMISSION

OFFICE OF NUCLEAR REACTOR REGULATION &

OFFICE OF NUCLEAR MATERIAL SAFETX.AND SAFEGUARDS

WASHINGTON;b c.;-20555 May 129219Rt 26 P2:27 NRC INFORMATION NOTICE 92-38: IMPLEMENTATION DATE FOR THE REVISION TO THE EPA

MANUAL OF PROTECTIVE ACTION GUIDES AND PROTECTIVE

ACTIONS FOR NUCLEAR INCIDENTS

Addressees

All holders of operating licenses or construction permits for nuclear power

reactors, non-power reactors and materials licensees authorized to possess

large quantities of radioactive material.

Purpose

The U.S. Nuclear Regulatory Commission (NRC) is issuing this information notice

to notify addressees of a recent Commission decision that will affect the

implementation date for the revised U.S. Environmental Protection Agency (EPA)

Manual of Protective Action Guides and Protective Actions for Nuclear Incidents.

It is expected that recipients will review the information for applicability to

their facilities and consider actions as appropriate. However, suggestions

contained in this information notice are not NRC requirements; therefore, no

specific action or written response is required.

Description of Circumstances

On November 19, 1991, and January 23, 1992, the NRC issued Information Notices

91-72, "Issuance of a Revision to the EPA Manual of Protective Action Guides

and Protective Actions for Nuclear Incidents" and 92-08, "Revised Protective

Action Guidance for Nuclear Incidents," respectively, to notify licensees of a

revision to EPA's Manual of Protective Action Guides and Protective Actions for

Nuclear Incidents. EPA revised this manual to incorporate the current health

physics practice for dose units and to expand the applicability of the guidance

to include nuclear incidents for both commercial and Federal facilities.

The NRC agreed with EPA's recommendation to implement the manual revision

concurrently with the revised Part 20 of Title 10 of the Code of Federal

Regulations. The original dates for implementing the revised Part 20 were

January 1, 1993, for NRC licensees, and January 1, 1994, for Agreement States.

On February 12, 1992, the Commission informed the NRC staff of its decision to

delay the required implementation date of 10 CFR Part 20 for a period of 1 year

to January 1, 1994. The staff has initiated the necessary rulemaking to

reflect this delay. To be consistent with the change in the date for implemen- ting 10 CFR Part 20, the addressees may delay for up to 1 year their implementa- tion of the revision to EPA's Manual of Protective Action Guides and Protective

9205050256 p1R  ; < tt- e -O3' A1oSJ2..

PDrD/e-d // C-.

Attachment I Attachment 2 IN 92-38 IN 92-38 May 12, 1992 Nay 12. 1992 Page I of I Page I of I

LIST OF RECENTLY ISSUED LIST OF RECENTLY ISSUED

NRC INFORMATION NOTICES NMSS INFORMATION NOTICES

Information

Information Date of Infonration Date of

Notice No. Subject Issuance Issued to Notice No. Subject Issuance Issued to

92-37 Implementation of the 05/08/92 All Nuclear Regulatory 92-37 Implementation of the 05/08/92 All Nuclear Regulatory

Deliberate Misconduct Rule Commission Licensees. Deliberate Misconduct Rule Commission Licensees.

92-16, Loss of Flow from the Re- 05/07/92 All holders of OLs or CPs

Supp. 1 sidual Heat Removal Pump for nuclear power reactors. 92-34 New Exposure Limits for 05/06/92 All licensees whose opera- during Refueling Cavity Airborne Uranium and tions can cause airborne

Draindown Thorium concentrations of uranium

and thorium.

92-36 Intersystem LOCA Outside 05/07/92 All holders of OLs or CPs

Containment for nuclear power reactors. 92-14 Uranium Oxide Fires at 02/21/92 All fuel cycle and uranium

Fuel Cycle Facilities fuel research and develop-

92-35 Higher Than Predicted Ero- 05/06/92 All holders of OLs or CPs ment licensees.

sion/Corrosion in Unisol- for nuclear power reactors.

able Reactor Coolant Pres- 92-11 Soil and Water Contamina- 02/O5/92 All uranium fuel fabrica- sure Boundary Piping Inside tion at Fuel Cycle Facil- tion and conversion facil- Containment at A Boiling ities itles.

Water Reactor

92-10 Brachytherapy Incidents 01/31/92 All Nuclear Regulatory Com-

92-34 New Exposure Limits for 05/06/92 All licensees who e opera- Involving Iridium-192 Wire mission (NRC) licensees

Airborne Uranium and tions can cause a rborne Used In Endobronchial authorized to use

Thorium concentrations of uranium Treatments iridium-192 for brachy- andthorium. therapy; manufacturers and

distributors of iridium-192

92-33 Increased Instrument 04/30/92 All holders of OLs or CPs wire for use inbrachy- Response Time When for nuclear power reactors. therapy.

Pressure Dampening

Devices are Installed 92-08 Revised Protective Action 01/23/92 All fuel cycle and materi- Guidance for Nuclear Inci- als licensees authorized

92-32 Problems Identified with 04/29/92 All holders of OLs or CPs dents to possess large quanti- Emergency Ventilation for nuclear power reactors. ties of radioactive materi- Systems for Near-Site ial.

(Within 10Miles) Emer- gency Operations Facili- 91-86 New Reporting Requirements 12/27/91 All licensees authorized

ties and Technical Support for Contamination Events at to use byproduct materials

Centers Medical Facilities for human use.

(10 CFR 30.50)

OL

  • Operating License

CP - Construction Permit

IN 92-34 May 6, 1992 The new revision to NRC Regulatory Guide 8.25, "Air Sampling In The Workplace,"

gives guidance for setting up an air-sampling program that can be used to

estimate internal dose from airborne activity. The associated NUREG-1400

explains acceptable implementation of methods described in Regulatory

Guide 8.25.

In addition, Table 2 of Appendix B to 10 CFR 20.1001-20.2401 places much more

stringent limits on effluent concentrations for soluble uranium and thorium in

water, and for thorium and insoluble uranium in air. The reduction in the

allowable effluent concentrations to about a hundredth of the former values

may necessitate changes in procedures or monitoring methods, or may even

necessitate installation of new effluent treatment systems requiring

appreciable lead time to procure.

This information notice requires no specific action or written response. If

you have any questions about the information in this notice, please call the

technical contact listed below or the appropriate NRC regional office.

Richard E. Cunningham, Director

Division of Industrial and

Medical Nuclear Safety

Office of Nuclear Material Safety

and Safeguards

Technical contact: Edward Shum, NMSS

(301) 504-2607 Attachments:

1. List of Recently Issued NMSS Information Notices

2. List of Recently Issued NRC Information Notices

Attachment 1 IN 92-34 May 6, 1992 LIST OF RECENTLY ISSUED

NMSS INFORMATION NOTICES

Information Date of

Notice No. Subject Issuance Issued to

92-14 Uranium Oxide Fires at 02/21/92 All fuel cycle and uranium

Fuel Cycle Facilities fuel research and develop- ment licensees.

92-11 Soil and Water Contamina- 02/05/92 All uranium fuel fabrica- tion at Fuel Cycle Facil- tion and conversion facil- ities ities.

92-10 Brachytherapy Incidents 01/31/92 All Nuclear Regulatory Com- Involving Iridium-192 Wire mission (NRC) licensees

Used in Endobronchial authorized to use

Treatments iridium-192 for brachy- therapy; manufacturers and

distributors of iridium-192 wire for use in brachy- therapy.

92-08 Revised Protective Action 01/23/92 All fuel cycle and materi- Guidance for Nuclear Inci- als licensees authorized

dents to possess large quanti- ties of radioactive materi- ial .

91-86 New Reporting Requirements 12/27/91 All licensees authorized

for Contamination Events at to use byproduct materials

Medical Facilities for human use.

(10 CFR 30.50)

91-84 Problems with Criticality 12/26/91 All Nuclear Regulatory

Alarm Components/Systems Commission (NRC) fuel

cycle licensees, interim

spent fuel storage licens- ees, and critical mass

licensees.

91-71 Training and Supervision 11/12/91 All NRC medical licensees.

of Individuals Supervised

by an Authorized User