Approved for Issue - VERIFY STATUS PRIOR TO USE

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Prepared by:

M. Lake

Senior Technical Engineer/Officer Licensing

Bruce Power

Reviewed by:

J. Boyadjian Section Manager Licensing

Bruce Power

Approved by:

M. Burton

Department Manager

Licensing, Environment and Audit Bruce Power

Master PDF Created: 06Jun2007 11:56

CENTRAL MAINTENANCE AND LAUNDRY FACILITY SAFETY REPORT NK37-SR-00531.1-00002

Rev 002

June 2007

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CNSC CORRESPONDENCE DISTRIBUTION LIST INTERNAL

1. Route: 1. M. Burton B10

2. J. Boyadjian B10

2. Route: 1. I. Rowley

2. D. Cooper

3. Route: 1. J. Ens

2. R. Coates

4. Records Centre B12

5. Records Centre B10

EXTERNAL

1. P. Bye MOE

2. C. LaFrance MOE

3. J. Clarke EC

4. K. Gilmer MOL

5. K. Klassen (2) CNSC

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HISTORY OF REVISIONS

REV # DATE SECTION DESCRIPTION OF REVISION

1 Oct/91 Section-General Wording of report changed from a proposed structure (for the Construction Licence Application) to an as-built structure.

The report title changed from the BNPD Central Maintenance Facility - Construction Licence Application to BNPD Central Maintenance Facility - Safety Report.

Section 4.2 Section rewritten to reflect the changes made in the layout.

Section 4.3 Section rewritten to reflect the changes made in the layout.

Section 5.1.2,

Paragraph 7

Added sentence on stack monitor trouble alarm.

Appendix A Whole Appendix updated with latest information found in Bruce B Safety Report, Volume 1, Chapter 1.

Appendix B Appendix rewritten in Bruce A Safety Report format to describe current DEL methodology.

Figure 3–2 Layout changed slightly in Scaffold Test and Repair area and Carpenter Shop. Area created for Fire Truck Storage.

Figure 4–2 Layout of Active Drum cleaning area changed significantly.

Figure 4-3 Layout of Active Laundry area changed significantly.

Figure 7–1 Same changes as in Figure 3–2.

2 Jan/93 Revision 002 changes were indicated by a vertical bar to the right of the revised text. Revised figures were indicated in the Table of Contents. Most of the revisions reflect changes due to the new Radioactive Laundry.

Drawing No. NK37-DOA-29420-P3 has been

superseded by Drawing No. NK37-POA-29420-0003, Rev. 0.

3 Feb/95 Major revision to reflect organizational changes, to remove all reference to CMF building expansion for laundry program, to identify recent changes in the laundry area and to identify other work program changes.

Note: This revision did not affect Appendices A and B.

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4 Feb/97 Major revisions to reflect re-organizational changes including formation of Heavy Water & Support Services Division; to identify recent changes in the Radioactive Laundry area; to identify relocation of Portable

Radiation Instrument Shop from two portable trailers located on the south side of the CMF into an area next to the Control Maintenance Shop; to identify the

installation of the Free Air Calibrator Shop on the south side of the CMF; to correct shop designations such as for Crane & Overhead Door Repair and Projects &

Thermography (versus Control Maintenance

Office/Shop), Rad Instrument Decontamination (versus Repair) Area and Tool Crib (versus Bruce B Storage);

to delete the security surveillance equipment, portable radio equipment/radio systems and environmental monitor work programs which were transferred to HWSSD Operations Building C; in Section 4.6, to include repair of equipment such as valve stems and PHT pump seals from Pt. LePreau Nuclear Facility which was previously approved by the Board; to add Section 4.7 on Transportation Package Maintenance;

in Section 8.0, to identify that the requirements of the quality engineering program for HWSSD-SSD nuclear projects are now documented in the chosen design organization’s Design Quality Assurance Manual which must meet the approval of the affected HWSSD-SSD Design Authority; in Section 8.0 to identify that the HWSSD quality assurance program is now

documented in the Support Services Business Management System Manual.

5 Nov/99 Major revisions to reflect:

• Reorganizational changes including formation of:

Ontario Power Generation/Nuclear; General Services Department within Bruce Nuclear Division; Site Facilities Management Section and Site/OPGN Maintenance Services Section within General Services Department.

• Shutdown of Heavy Water Plant.

• New Bruce Steam Plant.

• Expansion of Radioactive Laundry.

• Updated maintenance services provided in Table 3-1.

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5 (Cont.) _• Most of Active Laundry, all of Active Shipping and Receiving Area and half of Decontamination Area has been changed from Zone 3 to Zone 2 in Figure 3–2 and Figure 7–1.

• Drum cleaning program is temporarily on hold.

• Work Control Centre is no longer in CMF.

• Active Laundry has been changed from Zone 3 to Zone 2, except for area around tandem

perchloroethylene dry cleaner.

• Shuttle room has now become Shift Emergency Response Manager’s office in Section 5.1.2.

• New Bruce Steam Plant Control Room replaces Bruce Bulk Steam System Control Centre Control Room in Section 5.1.2.

• Active liquid waste is no longer treated with sodium hypochlorite in Section 5.2.

• N-PROG-RA-0008, Radiation Protection

Requirements replaces Ontario Hydro Radiation Protection Regulations, Part 1.

• Updated monitoring locations in Figure 7–1.

• Roof zoning has changed from Zone 2 to Unzoned in Figure 7–3.

• Electronic Personal Dosimeters replace Direct Reading Dosimeters in Section 7.3.

• Health Physicist is now assigned from

Environment, Safety and Health Department.

• N-PROG-MP-0009, Design Management replaces chosen design organization’s Design Quality Assurance Manual in Section 8.0.

• CMF operation is now governed by Quality Program described in N–CHAR-0002, Chief Nuclear Officer Expectations in Section 8.0.

• Overnight camping will resume in the newly

fenced-in southern portion of Inverhuron Provincial Park after the MNR approves it in Appendix A, Section 2.1.

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6 Sept/01 Major revisions to reflect:

• Reorganizational and name changes including AECB to Canadian Nuclear Safety

Commission (CNSC); Bruce Power leasing BNPD from Ontario Power Generation (OPG); Central Maintenance Facility to Central Maintenance and Laundry Facility; Bruce Stores to Central Materials Management Facility; Western Nuclear Training Centre to Bruce Learning Centre; Site Facilities Management Section has disbanded with only maintenance function remaining with General Services Department (GSD); Site Maintenance Services Section transferred from GSD to Bruce B and no longer provides external service.

• Shops updated in Figure 3–2 including Building Projects Shop becoming Bruce B Breaker Maintenance Shop.

• Maintenance Services updated in Table 3-1.

• Radioactive transportation packages still inspected and maintained by OPGN.

• Drum cleaning program still on hold.

• Active Laundry layout updated in Figure 4-3.

• Decontamination Area changed from 510 to 100m2.

• Zone 3 ventilation maximum exhaust rate increased from 24 to 36 m3/s.

• Radioactive liquid storage tank high level alarms remotely in BSP versus BBSS Control Room.

• N-PROG-RA-0008, Radiation Protection Requirements replaced by BP-RP-00001,

Radiation Protection Policies and Principles, and BP-RP-00002, Radiation Protection Requirements.

• Zone 3 area clarified in Section 7.2.1.

• Monitor locations updated in Figure 7–1.

• Health Physicist now assigned from Employee Safety Department versus Environment, Safety and Health Department.

• N-PROG-MP-0009, Design Management replaced by BP-PROG-00041, Design Management.

• Quality Assurance Program in accordance with BP-QAP-00001 versus program described in N-CHAR-0002, Chief Nuclear Officer Expectations.

• References updated in Section 9.0.

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6 (Cont.) _• Population data updated in Appendix A, Section 1 and Table A-1.

• Use of Inverhuron and MacGregor Point Parks updated in Appendix A, Section 2.1 and Table A-2.

• Referred to Derived Release Limits (DRLs) versus Derived Emission Limits (DELs) in Appendix B and updated Radiation Dose Limits in Table B-1 per ICRP60 (1990).

• DRLs prepared by N4 Research Associates Inc.

and Annual Summary and Assessment of Environmental Radiological Data Report now prepared by Technical Support Division,

Environmental Affairs Subdivision in Appendix B, Section 6.0.

• Environmental surveillance program updated by J. Lamarre in 1998 in Appendix B, Section 7.0.

• BNPD Radiological Environmental Monitoring Program updated in Appendix B, Table B-2 and Figure B-2.

R000 (First issue

by Bruce Power

Inc.)

July, 2002 Major revision in response to CNSC comments including reference to:

• First issue of CMLF Safety Report by Bruce Power in Abstract.

• Relationship between Bruce Power and OPG, including acceptance of radioactive waste from CMLF by OPG, clarified in Section 1.0.

• Organizational chart and description of positions of authority in Section 2 of BP-OPP-00003.

• Drum cleaning, dry cleaning and perchloroethylene still deleted throughout.

• Laundry Storage Area in place of Active Drum Cleaning.

• Plastic suits and overshoes laundered at Bruce A deleted in Sections 3.3.3 and 4.2.

• Segregation of wastes into active and inactive and disposal of these wastes in Section 3.3.3.

• Active laundry effluent going to BNPD Sewage Processing Plant in Sections 4.2, 5.3 and Appendix B, Section 5.0, including flow rate in Section 4.2.

• Machining and repair of radioactive equipment clarified in Section 4.5.

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R000 (Cont.) (First issue

by Bruce Power

Inc.)

• Maintenance of equipment with potential

radioiodine contamination requires Responsible Health Physicist to define appropriate control measures in Section 5.1.2.

• Areas connected to active drainage system, capping of floor drains, radioactive work in Zone 2, capacity of collection tanks and disposition of filtered solids clarified in Section 5.2.

• Criteria for transferring liquid waste to Bruce A versus immobilizing, as specified by OPG, in Section 6.1 (b).

• OPG Western Waste Management Facility in place of Radioactive Waste Operations Site 2

throughout.

• Action Levels in Section 6.2.

• Activity limit on sludges sent to OPG in Section 6.3.2.

• Management of radioactive solid waste clarified in Section 6.4.2.

• Bruce Power documentation, Radiation Protection Program and worker training clarified in

Section 7.1.

• Monitoring with whole body contamination monitors, routine radiation surveys and use of radiation hazard signs clarified in Section 7.2.2.

• CMLF personnel designated as Nuclear Energy Workers clarified in Section 7.3.

• DRL critical group for gaseous effluents is now adult on farm and limiting radionuclide is now Cs-137 in Appendix B, Section 4.0.

• No direct releases to water from CMLF and liquid wastes are disposed of through the active liquid waste management system at Bruce A against its DRL in Appendix B, Section 5.0.

• Annual Summary and Assessment of

Environmental Radiological Data now prepared by Bruce Power’s Safety and Environment Division.

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R001 September, 2005

Throughout Removed BNPD reference and changed to Bruce Power (or “BP”) site throughout report.

Throughout Removed reference to General Services Department throughout report.

Throughout Removed reference to quality assurance program and changed management system throughout the report.

Throughout Removed reference to Derived Emission Limit (DELs) and changed to Derived Release Limit (DRLs)

throughout report.

Section 1.2 Removed reference to restart of Units 3 and 4.

Section 2.1 Removed reference to Bruce Stores and updated to Central Materials Management Facility.

Figure 2–1 Changed name of RWOS2 to WWMF.

Figure 2–2 Added temporary Emergency Response Facility.

Section 3.2 Added the wording “radiological zones” to General Layout.

Figure 3–2,

Figure 4–1and Figure 7–1

Deleted references to Transport Package Maintenance Area (OPGN) from text and figures.

Modified text describing OPG work programs (removal of reference to Transportation Package Maintenance Area and replace with OPG Tube Mock-Up and Storage for Restart area).

Figure 3–2 Added Zone 3 fumehood, washer and dryer.

Table 3-1 Added small tools.

Section 4.1 Removed reference to buffing pads and harnesses.

Section 4.3 Identified that capped drains are active drains and that the floors in the truck bays are sloped towards the drains.

Section 5.1.2 Added a new section describing Zone 2 ventilation.

Section 5.1.3 Removed reference to radioactive drum cleaning, drying operation and drum cleaning room.

Added note regarding Interim Derived Release Limits accepted by the CNSC.

Section 5.2

Section 6.1 b), Section 6.3.2, Section B5.0 Liquid Effluents in Appendix B

Added note about CMLF liquid waste to Sewage Processing Plant.

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R001 (Cont.) Section 6.2.2 Removed reference to Derived Emission Limit and changed to operational targets, which are a small target of the DRL.

Section 6.4 Added statement that solid waste is required to meet WWMF acceptance criteria.

Section 7.1 Added reference to Action Levels accepted by the CNSC.

Removed reference to tritiated heavy water drum cleaning operation and replaced with Transportation Package Maintenance Area.

Appendix B,

Section B1.0

Removed reference to DELs and changed to a small percentage of the DRL.

R002 November 2006

Section 2 Figure 2-1 Bruce Power Site Layout updated and notes added.

Section 3 Figure 3-2 BNPD Central Maintenance and Laundry Facility General Layout updated.

Section 3.3.3 Minor text revision.

Section 4.1 Decontamination of vehicle cargo space (Truck Bay) deleted from the list of major work activities involving radioactive materials.

Section 4.2 Minor text revision.

Section 5.1.3 Obsolete reference to SERM office deleted and replaced with room identification: Room M158.

Section 6.1 Reference to Appendix B added.

Section 7 Figure 7-1 Central Maintenance and Laundry Facility Zoning and Monitoring Locations updated.

Sections 9 & 10 Document reference BP-PROG-00041 superseded by BP-PROC-00335.

Appendix A Appendix A has been updated with the most recent available information.

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CENTRAL MAINTENANCE AND LAUNDRY FACILITY

SAFETY REPORT

A Report to the Canadian Nuclear Safety Commission

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COPYRIGHT NOTICE

No part of this document may be reproduced, stored in a retrieval system or transmitted in any form or by any means whatsoever without the prior written permission of

Bruce Power Inc.

This document is available to interested parties, for reading only, at designated locations.

Copyright - 2006 by Bruce Power Inc.

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ABSTRACT

This report was first issued as the BNPD Central Maintenance Facility - Construction Licence Application. It was last revised and issued November 2005 as the BNPD Central Maintenance and Laundry Facility Safety Report (Revision 001).

This is the third revision (Revision 002) of the Central Maintenance and Laundry Facility (CMLF) Safety Report by Bruce Power Inc. The report describes the various radioactive and

non-radioactive work programs operating out of the CMLF, who is responsible, and the area of the CMLF occupied by each work program. The report covers CMLF radiological zoning as well as zoning ventilation and drainage. It also addresses radioactive waste management, occupational radiation safety, conventional health and safety and the management system for operation of the CMLF. This revision updates Appendix A; Description of the Bruce Power Site Environment.

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ABSTRACT OF PRESENT REVISION:

See Description of Revision for November 2006 under History of Revisions.

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Table of Contents

Page

1.0 INTRODUCTION ... 17

1.1 Background...17

1.2 Purpose of the Central Maintenance and Laundry Facility ...18

2.0 SITING AND ENVIRONMENTAL DATA ... 18

2.1 Location ...18

2.2 Property ...18

2.3 Area Description ...18

3.0 DESCRIPTION OF BUILDING AND WORK ACTIVITIES ... 20

3.1 Structure ...20

3.2 General Layout ...21

3.3 Work Activities ...21

4.0 WORK ACTIVITIES INVOLVING RADIOACTIVE MATERIALS ... 24

4.1 Introduction ...24

4.2 Active Laundry ...25

4.3 Vehicle Cargo Space Decontamination ...27

4.4 Decontamination Area ...28

4.5 Machining and Repair of Radioactive Equipment ...28

4.6 Tube Change Mock-Up and Storage for Restart (OPG designated area) ...28

5.0 AUXILIARY SYSTEMS ... 29

5.1 Ventilation Systems ...29

5.2 Radioactive Liquid Drainage System ...31

5.3 Sanitary Sewage System...34

5.4 Water Systems...34

5.5 Heating System...34

5.6 Service Air System...34

5.7 Breathing Air System ...34

5.8 Smoke Detection System...34

5.9 Air Conditioning...34

5.10 Electrical Systems...34

6.0 RADIOACTIVE WASTE MANAGEMENT ... 35

6.1 General ...35

6.2 Radioactive Airborne Waste ...36

6.3 Radioactive Liquid Waste ...36

6.4 Radioactive Solid Waste ...37

7.0 OCCUPATIONAL RADIATION SAFETY ... 37

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7.1 General ...37

7.2 Contamination Control ...38

7.3 Dose Control ...42

8.0 CONVENTIONAL HEALTH AND SAFETY... 43

9.0 MANAGEMENT SYSTEM ... 43

10.0 REFERENCES ... 43

APPENDIX A: DESCRIPTION OF THE BRUCE POWER SITE ENVIRONMENT ... 46

APPENDIX B: PUBLIC RADIATION SAFETY ... 61

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1.0 INTRODUCTION

The overall objective of Bruce Power Inc. at the Bruce Power site is to produce electricity at the lowest total cost to its customers and to maintain, at the same time, high standards of safety, reliability and good citizenship. Achievements in these key result areas are influenced by maintenance performance. Bruce Power has in operation one and one half nuclear

generating stations, a steam plant and a number of conventional waste processing facilities, plus other miscellaneous site facilities.

The Central Maintenance and Laundry Facility (CMLF) is designed to complement existing dedicated maintenance facilities in meeting the total maintenance needs of Bruce Power and some Ontario Power Generation (OPG) work programs.

The CMLF is a facility within and managed by Bruce Power, who is the licensee responsible for the safety of all activities occurring within the CMLF, including the area used by OPG.

While OPG is the owner of the CMLF, under the lease agreement Bruce Power has the authority and responsibility for building and equipment maintenance and any changes to the structure or equipment. OPG has contracted with Bruce Power to collect nuclear waste from the facilities leased by Bruce Power. Such waste must comply with the requirements of the OPG Waste Acceptance Criteria for Low and Intermediate Level Radioactive Waste. If the criteria, as described in BP-PROC-00107, Waste Acceptance Criteria for Low & Intermediate Level Radioactive Waste, are met, title and risk for the waste then transfers to OPG.

Refer to Section 2.0 in the CMLF Operating Policies and Principles, BP-OPP-00003, BNPD Central Maintenance Facility and Laundry Facility, for the organizational chart and description of the positions of authority, which can make decisions on the operation and maintenance of the CMLF.

1.1 Background

Maintenance is separated into three distinct functions: mechanical, control and civil.

Mechanical and control maintenance capabilities are provided for each department by dedicated maintenance staff that form part of that department’s total complement. These personnel work in local maintenance shops or directly in the field. Most shop work is done in area shops with overload or specialized shop work being contracted to other departments such as; Design Projects and Modifications along with the Site Maintenance Support Department at the CMLF, or to the private sector.

Civil Maintenance resources are located in each department for local requirements, while central shops exist at the CMLF for site requirements.

The CMLF has a total floor area of about 15,000 m² and serves the Bruce Power site and some OPG work programs, providing maintenance functions in all three maintenance disciplines from its shops.

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1.2 Purpose of the Central Maintenance and Laundry Facility

The CMLF is designed to support the maintenance activities of Bruce B generating station and of Bruce A generating station, bulk steam system, other site facilities and some OPG work programs, and is capable of handling work involving both non-radioactive and radioactive materials.

The purpose of the CMLF is to provide efficient and economical maintenance by consolidating in one facility:

1. Major maintenance equipment of low use in individual departments/divisions.

2. Special maintenance skills of infrequent application in individual departments/divisions.

3. Common functions most economically performed by a single work group in a single, specialized facility.

With the lease of generating and related facilities from OPG to Bruce Power, specialized services continue to be provided out of the CMLF shops along with some services out of other facilities on site.

2.0 SITING AND ENVIRONMENTAL DATA 2.1 Location

The CMLF is located on the Bruce Power site, adjacent to the Central Materials Management Facility.

2.2 Property

The CMLF consists of a fenced property of about 7 ha. The CMLF property includes a Mechanical Laydown Yard, a Transport & Work Equipment (T & WE) Yard, a Container Laydown area, an area for vehicle washing and fuelling and a Temporary Emergency Response Facility (Figure 2–2).

2.3 Area Description

A detailed description of the area surrounding the Bruce Power site is given in Appendix A.

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Notes: 1) Building B28 is tentatively scheduled for demolition during mid-2007.

2) A 50 metre meteorological tower is located at the elbow of the road (dotted line) running southeast of the Bruce A switchyard towards the Bruce Learning Centre, Building B31.

3) The Oil Unloading (OPG) building/area is demolished.

Figure 2–1

Bruce Power Site Layout

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Master PDF Created: 06Jun2007 11:56 Temporary Emergency Response Facility

Figure 2–2

Central Maintenance and Laundry Facility Site Location 3.0 DESCRIPTION OF BUILDING AND WORK ACTIVITIES

3.1 Structure

The CMLF is a steel frame-type building with pre-cast, insulated concrete panels as shown in Figure 3–1. The roof is a steel deck type with an inverted roofing assembly. Internal walls are made of hollow concrete blocks or steel.

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3.2 General Layout

The floor plan of the CMLF building and its major delivery and personnel entry points are shown in Figure 3–2. The CMLF areas are designated as either Zone 1, 2 or 3 radiological zones. CMLF Zoning is shown in Figure 3-2. Zone 3 designates an area where radioactive work is done and where there is a possibility of radioactive contamination. Zone 1 is a contamination free zone and Zone 2 is an area where radioactive work may be done and where one might encounter some cross-contamination.

CMLF Zoning is discussed in detail in Section 7.0, Occupational Radiation Safety.

3.3 Work Activities

The work activities carried out in the CMLF are given in Table 3-1 and are briefly described in this section. Those activities involving work with radioactive materials are described in greater detail in Section 4.0.

Figure 3–1

Central Maintenance and Laundry Facility

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Figure 3–2

BNPD Central Maintenance and Laundry Facility General Layout

Area – Zone 3 F

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Table 3-1

Maintenance Services

Mechanical Control Civil

Custom fabrication &

welding

Process and radiation instrumentation

Transport and work equipment

Specialized machining Calibration and repair of site portable radiation instruments

Decontamination Equipment repair and

maintenance

Calibration and repair of site measuring and test equipment

Carpentry Testing and re-calibration Commercial grade dedication

of components

Cotton wet washing Heat treatment and stress

relief

Overhead door maintenance Protective clothing repair Overhead door maintenance Crane and hoist maintenance Building maintenance OPG Tube Change Mock-Up

and Storage for Restart

Breaker maintenance Central sheet metal shop Crane and hoist

maintenance

Small tools Grit blasting

Parts manufacturing ISO9002

Painting

Machining Sign and label fabrication

In-situ machining Thermal spraying

Structural fabrication and piping/welding

Outage support Tube welding

Note: The Scaffolding, Insulation, Safety Shop, Stud Tensioning, Hose Testing, Vibration Analysis, Safety/Relief Valve and Seal & Lapping work programs are provided out of other Bruce Power facilities.

3.3.1 Mechanical Maintenance Activities

Fabrication activities include; fabrication of piping, structural fabrication, metallizing, thermal spraying, stress relieving and special welding.

Machining activities include; spare parts manufacture, parts refurbishment, specialized machining, engraving and balancing.

Equipment reconditioning activities include reconditioning of; pumps, compressors, valves and motors.

OPG has an area devoted for the Tube Change Mock-Up and Storage for Restart.

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3.3.2 Control Maintenance Activities

Process and radiation instrumentation are repaired and calibrated.

A calibration lab repairs and calibrates site measuring and test equipment. Commercial grade components are tested randomly and, if passed, are made available for use in the

Bruce Power generating stations.

3.3.3 Civil Maintenance Activities

Fabrication and repair of sheet metal products and insulation covers are carried out.

Carpentry activities include; fabrication, repair and painting.

Transport and work equipment activities include; maintenance in the field and garage, painting and body shop work. Site maintenance crews, craning and heavy equipment operators work out of the CMLF.

Laundry personnel process Bruce Power and OPG radioactive protective clothing such as;

coveralls, lab coats, socks, underwear and towels. Plastic suits and respiratory equipment are decontaminated and repaired.

Grit blasting and painting (including spray painting) activities are carried out.

Decontamination of the interior of transport vehicles, small tools and radioactive material shipping packages is performed.

CMLF waste is bag-monitored to minimize generation of active waste and to ensure inactive waste is indeed inactive. Waste is first segregated on the likelihood of contamination in the field by choosing the appropriate bin for disposal. Waste which is likely clean is disposed of in green waste cans or green striped bags, while waste which is possibly contaminated or active is disposed of in yellow waste cans or black striped bags. These bags are then passed

through the bag monitor to determine actual activity. Bags which have less than 50 nCi/kg are sent to the onsite landfill, while any bags with greater activity are sent to OPG Western Waste Management Facility for disposal. Waste which does not fit into bags is monitored by hand.

Any measurable contamination above background results in the material being designated as radioactive waste.

4.0 WORK ACTIVITIES INVOLVING RADIOACTIVE MATERIALS 4.1 Introduction

Four major work activities involving radioactive materials are performed in the CMLF.

See Figure 4–1. These are:

1. Laundering of protective clothing and towels (Radioactive Laundry).

2. Decontamination of small tools and equipment such as portable radiation instruments (Decontamination Area).

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3. Machining and repair of radioactive components (Machine Shop for Radioactive Components).

Only radioactive laundering entails continuing routine activities. All other work activities are periodic in nature.

All radioactive material is received at the radioactive shipping and receiving ramp shown in Figure 4–1. All radioactive material shipped or received is free of external loose radioactive contamination. Management of radioactive waste associated with these activities is discussed in Section 6.0; occupational radiation safety and contamination control zoning is discussed in Section 7.0.

4.2 Active Laundry

The CMLF active laundry only processes cotton clothing. This clothing comes from

Bruce Power and OPG. Towels and protective clothing are wet washed. The active laundry occupies an area of approximately 1,200 m². The floor plan of the active laundry is shown in Figure 4–2. The laundry operation has been expanded to service the needs of Bruce Power and OPG customers. By design, 32,800 kg of cotton laundry can be processed per week.

The protective clothing is radiation monitored before and after cleaning. If the radioactivity on the cotton protective clothing is below 0.18 mBq/m², the clothing is cleaned, inspected for damage, repaired (if required) and returned to service. Above 0.18 mBq/m², the clothing is discarded as radioactive waste in accordance with Section 6.0 of this report.

Because of the negligible radioactivity in the protective clothing being laundered, the effluent is sent via the site Sewage Collection System to the Sewage Processing Plant for which the Ontario Ministry of the Environment issued an amendment to the Certificate of Approval for the increased effluent from the expanded active laundry. This effluent averages 129 m³ per day with a daily peak of 190 m³ and is not to exceed 200 m³ per day according to the

amended Certificate of Approval. This compares to the design capacity of 1,580 m³ per day for the Sewage Processing Plant to which 1,300 m³ per day flow, on average, from all of the sources on site. The sewage digester sludge is monitored for tritium and gamma while the effluent is monitored for tritium and beta activity on a monthly basis. These activities are negligible and reported quarterly to the CNSC in the CMLF Quarterly Technical Report.

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Figure 4–1

Radioactive Material Work Areas

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Figure 4–2 Active Laundry 4.3 Vehicle Cargo Space Decontamination

The loading dock for the receipt and shipment of radioactive material comprises two truck bays. See Figure 4–2. One truck bay is used periodically for decontaminating the cargo space of vehicles used in the transport of radioactive materials. Any liquids resulting from this operation are collected by a wet vacuum and handled by the radioactive liquid waste

management system described in Section 6.0. Two capped floor drains to active drainage (see Figure 5–2) are provided in this truck bay for any accidental spills that may occur during the filling of the radioactive liquid tanker (Section 6.0) in this same truck bay. The floors are sloped towards the drains to ensure any accidentally spilled liquids do not escape to the environment. The other truck bay is used for the receipt and shipment of radioactive material including laundry.

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4.4 Decontamination Area

An area of about 100 m² is designated for the decontamination of tools, equipment, portable instruments and protective clothing. See Figure 4–1. The latter area is equipped with a hooded wash sink for plastic suit decontamination. Liquid waste is handled by the radioactive liquid waste management system described in Section 6.0. A small radioactive instrument work area is located in the southwest corner of the general area.

4.5 Machining and Repair of Radioactive Equipment

The Machine Shop area, shown in Figure 4–1, can handle radioactive contaminated

components requiring refurbishing. No limits of activity are applied to the material, which is refurbished at the CMLF. Any material which is to be refurbished is decontaminated to the lowest level possible before it comes to the CMLF and is normally quite low in activity.

Any work which is to be performed on such material is done in accordance with and

adherence to the Radiation Protection Procedures. The CMLF can handle many components from the stations through the use of the Radiation Protection Procedures.

Typical machine shop activities and equipment used to service the components are given in Table 4-1. Portable radiation instruments, which are repaired and calibrated in the CMLF, are also used to support these programs.

Special ventilation requirements for this work are discussed in Section 5.0, and contamination control during these activities is discussed in Section 7.0.

4.6 Tube Change Mock-Up and Storage for Restart (OPG designated area)

The Tube Change Mock-Up and Storage for Restart area designated as an OPG area is located in the existing Zone 2 area of the CMLF. None of the work involves the handling of radioactive material. The area is used as a training facility for mechanical maintenance personnel to practice pressure tube change techniques prior to executing them on a reactor.

Table 4-1

Typical Machine Shop Activities/Equipment

Components Activity/Equipment Shafts (rotors) Lathes, grinders, refurbishing, thermal spraying,

balancing Rotating components

(coupling, flywheels)

Balancing Pump and compressor components

(castings, impellers)

Horizontal boring mill, grinders, welding preparation, welding, machining, fabrication, fitting, balancing Valves/components Grinders, lathes, fitting, re-machining, testing

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5.0 AUXILIARY SYSTEMS 5.1 Ventilation Systems

The ventilation systems of Zone 1, 2 and 3 are statically balanced so that air flows from Zone 1 to Zone 2 to Zone 3.

5.1.1 Ventilation Systems - Non-radioactive Areas

Shops, vehicle service areas, inactive laundries, and change and locker rooms are provided with supply and exhaust ventilation systems designed to suit the requirements of each application. Supply air is tempered in cold weather. All applicable codes and standards are adhered to.

5.1.2 Ventilation Systems - Zone 2

Open shop areas of Zone 2 are normally handled by the non-radioactive ventilation system (Section 5.1.1) unless contaminated work is expected to occur in those areas.

A dry cartridge filter exhaust system is used to exhaust the active and inactive thermal spray operations in Zone 2. See Figure 3–2 for the thermal spray area. The filter system consists of a pulse air cartridge dust collector, a HEPA pre-filter, a HEPA filter and a dedicated roof exhaust stack. Radioactive work within CMLF Zone 2 is confined to temporary rubber areas, and to exhaust hoods over work areas and grinding machines in the fitting shop. Permanent exhaust hoods are connected to the Zone 3 building ventilation system. Temporary rubber areas are connected to the Zone 3 ventilation system using elephant trunks. No portion of Zone 3 ventilation air is re-circulated.

5.1.3 Ventilation System - Zone 3

Zone 3 may be subject to radioactive contamination; therefore, all air exhausted from this zone is handled by a separate ventilation system for direct discharge via the CMLF exhaust stack. In the main building, exhaust air originates from general room ventilation, truck bays and locally from temporary contamination enclosures and exhaust hoods over work areas (Figure 5–1). In the radioactive laundry, exhaust air originates from general Zone 2 and 3 area ventilation, exhaust hoods, clothes dryers (through lint filters), decontamination fume hood and washing machines.

The areas supplied by the Zone 3, ventilation system are kept under negative pressure with respect to the surrounding areas. Figure 5–1 shows what occurs when radioactive work is being conducted in an identified contamination work area.

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Master PDF Created: 06Jun2007 11:56 Main

CMLF Exhaust Stack

Contamination Enclosure (Typical) Contamination

Enclosure (Typical)

Figure 5–1

Active Ventilation System - Air Flow Diagram

Two exhaust fans are provided for the main CMLF building exhaust system, each with 100 percent normal system capacity. Air is exhausted at a maximum rate of 36 m³/s.

All air exhausted from areas serviced by the Zone 3 ventilation system pass through pre-filters and high efficiency particulate air (HEPA) filters located in separate filter housings.

Charcoal filters are not provided centrally in the Zone 3 ventilation systems, since no significant radioiodine contamination is anticipated in the building. In the unlikely event that equipment with potential radioiodine contamination is to be maintained, the Responsible Health Physicist shall define appropriate control measures.

The filtered exhaust air is sampled by the stack monitors for tritium, radioiodine and

radioactive particulates, and then discharged to the atmosphere through a dispersal stack.

The stack monitor trouble alarm will alarm locally and at the Bruce Steam Plant (BSP) Control Room. The stack has a minimum height of 9 m above the adjacent roof level.

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The static pressure of the fans is regulated to change with filter resistance from dust loading and to accommodate the variable number of temporary contamination enclosures, machine tools and exhaust hoods in operation.

Each fan is equipped with a motorized discharge damper to permit servicing and, if one fan stops, to prevent recirculation of air into the distribution duct work.

Each filter housing is provided with tight-sealing inlet and outlet dampers to permit maintenance of one filter while the other remains in operation.

For each fan, the following conditions are annunciated separately on a panel in Room M158:

run/stop status, fan speed low and discharge damper failure. These conditions also have annunciations in the BSP Control Room.

5.2 Radioactive Liquid Drainage System

All liquid waste originating within Zone 3 is considered potentially radioactive.

Radioactive liquid wastes originate from the janitor sinks in the active laundry, laundry

storage, thermal spray rooms, personal decontamination centre and the Zone 2 truck bay from the decontamination area fume hoods and from the emergency showers and eyewash

stations in the active laundry, laundry storage and decontamination area.

All floor drains connected to the radioactive liquid drainage system are normally capped to keep out foreign material such as inactive liquid and floor sediment, which would otherwise have to be removed in the active liquid filters. Floor drains can be uncapped for the rare accumulations of active liquid, such as in the Zone 2 truck bay, which have to be drained to the active drainage system. Utility drains are provided with a normally closed valve above floor level.

Radioactive work can be done in any of the Zone 2 areas as shown in Figure 3–2. When this is done, a tented enclosure is set up and vented via elephant trunks to the Zone 3 ventilation system. Floor drains throughout the Zone 2 area, which are piped into the sewage collection system, are permanently capped.

Note: Effluents from the Zone 2 washrooms and showers are considered non-radioactive and thus are connected to the sewage collection system.

Small volume, higher activity liquid wastes are collected at the source in drums. Radioactive liquid waste management is discussed in Section 6.0.

All other effluents of lower radioactivity levels are collected in storage tanks. Two tanks, each with 50 percent of the required total capacity, are provided. These effluents are trucked periodically to the active liquid waste management system at Bruce A after being filtered to remove sediment and crud. These filtered solids are then stored as radioactive waste in OPG Western Waste Management Facility.

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Note: Bruce Power has requested (Reference 1) and received approval for (Reference 2) an alternate release avenue of Active Liquid Waste (ALW) to the Sewage Processing Plant (SPP). This avenue would be used only if the CMLF liquid fails to meet the requirements for the Bruce A ALW system, or if the Bruce A ALW system is not available at a time when the transfer must be made. The CMLF liquid would be required to meet the conventional chemistry requirements specified by the Ontario Ministry of the Environment in the Certificate of Approval for the SPP and the radionuclide content would be below the limits of ≤ 14kBq/L tritium and ≤ minimum detectable activity gross gamma. The CNSC has requested Bruce Power for

notification at the time of any such release and the results of any such release are to be provided for information.

References:

1. Letter, F. Saunders to J. H. M. Douglas, “Central Maintenance and Laundry Facility:

Discharge Active Liquid Waste to Sewage Processing Plant”, March 19, 2003, NK37-CORR-00531-00303.

2. Letter, K. J. Klassen to F. Saunders, “Central Maintenance and Laundry Facility (CMLF)-Alternate Release of Active Liquid Waste (ALW) to Sewage Treatment Plant”, October 31, 2003, NK37-CORR-00531-00460.

The dyked collection tanks are constructed of epoxy-coated carbon steel and located in the basement so that all sides and the bottom may be observed for leakage. They have a total capacity of 25 m³ and are sized to hold the maximum expected volume of effluents from one week’s collection. All drainage flows into the tanks by gravity.

Two pumps, each of 100 percent duty, are provided. The capability of each pump is sufficient to fill a 27 m³ tanker in less than two hours.

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Figure 5–2

Active Drainage System - Liquid Waste Flow Diagram

The main discharge pumps are used to circulate and mix tank contents to get a proper mixture for sampling activity levels before pump-out.

The following indications are provided at the tank/drum filling station:

1. Storage tank levels.

2. Discharge indication (tanker/drum).

3. Pump operating mode (agitation/filling).

4. Metering of flow.

5. Individual pump running/pump stop indications.

A storage tank high level alarm is provided remotely in the BSP Control Room and in the CMLF SERM’s office.

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5.3 Sanitary Sewage System

Sanitary sewage effluent from all building washrooms, showers and inactive services, including active laundry effluent, are collected in the sanitary drainage system and run by gravity flow into the sanitary sewer in front of the building which flows via the site Sewage Collection System to the Sewage Processing Plant.

5.4 Water Systems

Domestic water is supplied by Bruce B. The water distribution system supplies the drinking water requirements of the building.

The fire protection water system supplied from the Bruce B fire and domestic water

pumphouse serves the building sprinkler system, fire hose stations and yard fire hydrants.

5.5 Heating System

The building is heated by a steam-heated glycol-water mixture. Individual heating units are designed to suit the requirements of each work area.

5.6 Service Air System

A compressed air system supplies service air to operate all pneumatic shop tools and the building instrumentation with instrument air that is dried.

5.7 Breathing Air System

A breathing air compressor complete with filters and dryers provides breathing air to respiratory protective equipment used in operations requiring it, such as grit blasting.

5.8 Smoke Detection System

A heat and smoke detection system is provided to give early warning of fire in any work area.

The fire protection water system is covered in Section 5.4.

5.9 Air Conditioning

Administration offices, lunchroom, selected shops and foremen’s offices are air-conditioned.

5.10 Electrical Systems

Power for the building is Class IV at nominal voltage levels of 600/347 V and 208/120 V, 60 Hz.

Emergency lighting is available to provide adequate illumination for personnel egress during a loss of Class IV power.

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6.0 RADIOACTIVE WASTE MANAGEMENT 6.1 General

The CMLF provides for the safe management of radioactive airborne, liquid and solid wastes generated at the facility according to principles identified in BP-RPP-00001, Radiation

Protection Policies and Principles, and BP-RPP-00002, Radiation Protection Requirements.

Appendix B: Public Radiation Safety provides details on how exposure of the surrounding population is kept as low as reasonably achievable (ALARA).

The potentially radioactive wastes from the CMLF consist of the following:

1. Zone 3 ventilation HEPA filters (sampled prior to release).

2. Potentially radioactive liquid waste from Zone 3 and the Zone 2 machine shop, which is stored in holding tanks. Depending upon radioactivity levels, wastes are either

pumped-out and transferred by tanker to the active liquid waste management system at Bruce A (an alternative release path is available, see Section 5.2) or immobilized at the CMLF. Liquid waste is immobilized, as specified by OPG, if its composition does not meet Bruce A’s active liquid waste management system conventional acceptance criteria or if its radioactivity exceeds 10.0 µCi/kg gross gamma or 750 µCi/kg tritium.

3. Solid radioactive waste or solidified liquid radioactive waste generated in the CMLF is transferred to OPG Western Waste Management Facility for storage.

Interim Derived Release Limits for radioactive releases to the environment from the Central Maintenance Facility were provided to the CNSC in Reference 1 (B-REP-03482-00002-R00) and accepted by the CNSC in Reference 2.

Environmental Action Levels for the CMLF in Table 3 of B-REP-03480-00001 R-001

“Environmental Action Levels for Bruce Power” were approved by the CNSC in Reference 3.

References:

1. Letter, R. Nixon to J. H. M. Douglas, “BNPD Central Maintenance Facility - Revised Interim Derived Release Limits for Radioactive Releases to the Environment”, September 6, 2000, NK37-CORR-00531-00049.

2. Letter, K. J. Klassen to R. Nixon, “BNPD Central Maintenance Facility (CMF) - Interim Derived Release Limits”, March 9, 2001, NK37-CORR-00531-00069.

3. Letter K. J. Klassen to F. Saunders, “Action Levels (ALs) Applicable to the Central Maintenance and Laundry Facility (CMLF) for the Purposes of Section 6.0 of the Radiation Protection Regulations”, June 6, 2003, NK37-CORR-00531-00391.

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6.2 Radioactive Airborne Waste 6.2.1 Sources

Airborne radioactivity arises as airborne particulate from machining operations.

6.2.2 Management of Airborne Radioactivity

Since machining of radioactive components is infrequent and the radioactivity inventories low, airborne radioactive particulate concentrations in the Zone 3 ventilation system are low.

Nonetheless, the Zone 3 exhaust is filtered by HEPA filters. Section 5.1 describes the Zone 3 ventilation system.

The Zone 3 ventilation exhaust is monitored for tritium, Iodine 131 and particulate emissions.

The emissions are continuously sampled and analyzed on a weekly basis. The tritium, Iodine 131 and particulate emissions are routinely a fraction of the operational targets, which themselves are a small target of the Derived Release Limits accepted by the CNSC (see Section 6.1) as reported in the Central Maintenance and Laundry Facility Quarterly Technical Reports.

6.3 Radioactive Liquid Waste 6.3.1 Sources

Liquid waste handled by the Zone 3 radioactive liquid drainage system originates as described in Section 5.2. Vehicle cargo space decontamination also results in small amounts of

radioactive liquid waste.

Due to radioactive material machinings being generated, some radioactive liquid waste may result from the clean-up of the temporary contamination enclosures (e.g., machining

lubricants, floor cleaning liquids).

6.3.2 Management of Radioactive Liquid Waste

Generally, radioactive liquid waste is handled by the radioactive liquid drainage system

described in Section 5.2. This liquid is periodically shipped by tanker to the active liquid waste management system at Bruce A (an alternative release path is available, see Section 5.2).

Small amounts of liquid waste with impurities and radioactivity exceeding those acceptable for shipment to the Bruce A active liquid waste management system, as well as radioactively contaminated sludges, are immobilized to satisfy established waste acceptance criteria and sent to OPG Western Waste Management Facility (WWMF) for storage as solid radioactive waste. Alternatively, such wastes are collected and periodically sent to an external licensed contractor for processing.

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6.4 Radioactive Solid Waste 6.4.1 Sources

Generally, solid radioactive wastes arise from janitorial and maintenance activities within Zone 3, decontamination work, temporary contamination enclosures in the machine shop, and rejected contaminated clothing and other wastes from the laundry. Small amounts of

immobilized liquid waste may also arise.

Filters from the ventilation systems are another source.

6.4.2 Management of Radioactive Solid Wastes

Radioactive solid waste is accumulated in radioactive waste transport containers situated in the CMLF waste handling area. These containers are on the OPG approved listing and consist of 2.5 m³ non-processible containers and 0.6 m³ reusable secondary containers for processible waste. At times, 205 liter black drums have been used for waste disposal. This area is signed/roped off for any hazards in compliance with the Radiation Protection

Procedures. These containers are transported periodically to OPG Western Waste Management Facility (WWMF) and are subject to WWMF acceptance criteria.

7.0 OCCUPATIONAL RADIATION SAFETY 7.1 General

Radiation exposures of CMLF personnel are controlled by a combination of facility design features and the adherence to a set of approved Bruce Power documentation. These are:

BP-RPP-00001, Radiation Protection Policies and Principles; BP-RPP-00002, Radiation Protection Requirements; BP-OPP-00003, Central Maintenance And Laundry Facility;

Radiation Protection Procedures; various Operating and Maintenance Procedures, and other policies and procedures, as required.

Action Levels for radionuclide releases developed for worker radiation protection were provided to the CNSC in Reference 1 and accepted by the CNSC in Reference 2. These Action Levels were developed in accordance with Section 6.0 of the Radiation Protection Regulations. When an Action Level is reached, a Station Condition Record shall be initiated and the prescribed actions shall be followed as outlined in the Radiation Protection

Regulations. An investigation shall be conducted to establish the cause for reaching the Action Level, actions shall be identified and taken to restore the effectiveness of the Radiation Protection Program, and the regulatory body shall be notified within the period specified in the licence.

References:

1. Letter, F. Saunders to J. H. M. Douglas, “Action Levels to Provide Radiation Protection for Workers and the Public While Carrying Out Licensing Activities Relating to

Bruce Power’s Central Maintenance and Laundry Facility”, March 28, 2003, NK37-CORR-00531-00320.

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2. Letter, K. J. Klassen to F. Saunders, “Action Levels (ALs) Applicable to the Central Maintenance and Laundry Facility (CMLF) for the Purposes of Section 6.0 of the Radiation Protection Regulations”, June 16, 2003, NK37-CORR-00531-00391.

To ensure that radiation doses are kept to a minimum during the operation of the facility, a radiation design review process was carried out during the design phase. The aim of this process was to verify that the design was optimized for minimum practicable radiation

exposure of personnel. Potential occupational radiation hazards associated with work areas, equipment, and operating and maintenance procedures were identified and assessed. Where necessary, corrective measures or improvements were implemented.

The Radiation Protection Program at the CMLF keeps doses as low as reasonably achievable during actual operation. This is accomplished through worker training, review of procedures, responsible supervision, monitoring dosimetry results, identification of high hazard work activities with the assistance of the Responsible Health Physicist and Radiation Safety personnel, and the development and use of high hazard work plans, where required. Worker training covers not only the operation of CMLF systems and equipment, but also radiation protection, in accordance with regulatory requirements, to the level required for the workers to carry out their responsibilities.

7.2 Contamination Control

Various design features of the CMLF are used to control the spread of contamination and to minimize internal exposure. These can be divided into the categories detailed in

Sections 7.2.1 to 7.2.5.

7.2.1 Zoning

The building is divided into three radiological zones according to the potential contamination hazard (Figure 7–1 to 7-4). The zones conform to BP-RPP-00001, Radiation Protection Policies and Principles and BP-RPP-00002, Radiation Protection Requirements.

Zone 1 includes all the inactive work areas, as well as the general office, the lunchroom, the inactive locker rooms, and the inactive shipping and receiving area. The main areas of Zone 2 are comprised of the radioactive materials shipping and receiving truck bays, the machine shop, the fabrication shop, the welding area, the equipment overhaul area, the OPG Tube Change Mock-Up and Storage for Restart area, the portable radiation instrument shop and the free air calibrator shop. The active locker and change rooms are also in Zone 2.

Zone 3 consists of the equipment decontamination area and the radioactive instrument decontamination area.

7.2.2 Monitoring

Monitoring stations are provided along traffic routes at inter-zonal boundaries

(Figure 7–1 to 7-4). The monitoring instruments are designed for detection of beta-gamma activity on individuals and equipment. Personnel are required to use the whole body contamination monitors upon leaving Zone 3 to Zone 2 and Zone 2 to Zone 1. Routine radiation surveys are done throughout the CMLF with radiation hazard signs posted for fields, airborne contamination and loose contamination in accordance with regulatory requirements.

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Figure 7–1

Central Maintenance and Laundry Facility Zoning and Monitoring Locations

Area – Zone 3 F

2nd Floor

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Master PDF Created: 06Jun2007 11:56 MECHANICAL

EQUIPMENT AREA

OFFICE ZONE 3 ZONE 2

ZONE 1 OPEN STORAGE

AREA

0 9 18 27 12 13 14

K

J

H

12 11 10

9 7 8

6 5

D F G H J K L M

E

HEPA FILTERS INSIDE ZONE 3 ELECTRICAL

EQUIPMENT AREA MECHANICAL

EQUIPMENT AREA

ELECTRICAL EQUIPMENT AREA 9M

9M

METRES

Figure 7–2

CMLF Mezzanine Floor Zoning

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Figure 7–3

CMLF Mezzanine Roof Zoning

Figure 7–4

CMLF Basement Floor Zoning

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7.2.3 Ventilation

Within Zones 2 and 3, air contamination is dealt with by control and adjustment of the ventilation system flows. The general ventilation provided for Zone 3 is described in

Section 5.1.3. The Zone 2 areas are normally part of the non-radioactive ventilation system (Section 5.1.1), unless the work is expected to be contaminated and provisions are made to accommodate that work (Section 5.1.2). In addition, identified temporary sources of airborne contamination in either Zone 2 or 3 are controlled by the use of local exhaust connections to the Zone 3 ventilation system. All the fume hoods used for radioactive work and the

decontamination equipment are connected to the Zone 3 system. When work is being done (in the machine shop) on radioactively contaminated components, portable enclosures exhausted by the Zone 3 ventilation system are used. Grinders used for radioactive work are equipped with dust collectors and the exhaust from these are connected to the Zone 3

ventilation system.

7.2.4 Breathing Air System

In Zone 3 and in the contamination enclosures in Zone 2 where the potential for airborne radioactive contaminants exists, a permanent breathing air system is provided to supply safe, high quality air for use with respiratory protective equipment.

7.2.5 Change Rooms

For persons engaged in radioactive work in Zones 2 or 3, facilities are provided for a change of clothing. The change rooms include areas for storage of personal clothing and work clothing, washing and showering facilities and personnel monitoring facilities.

7.3 Dose Control

All personnel at the CMLF who are expected through their normal job duties to exceed 1 mSv per year whole body dose are designated Nuclear Energy Workers. All such workers are informed of the risks due to radiation and are requested to verify their knowledge of these risks in writing.

All personnel entering the radiological Zones 2 and 3 are required to wear approved dosimetry in order to measure their whole body dose. In the event that personnel will be performing radioactive work or entering a radioactive work area, or if pregnant persons are entering Zone 2 or 3, EPDs and/or external TLDs are issued.

Personnel working in an area where tritium may be present will submit bioassay samples. To minimize the internal dose due to tritium (or other airborne contamination), protective clothing and equipment is available (emergency showers are provided in the decontamination laundry areas). The use of personal protective equipment is in accordance with BP-RPP-00001, Radiation Protection Policies and Principles, and BP-RPP-00002, Radiation Protection Requirements, the nature of the job, the existing or anticipated conditions in the work area, and the guidance laid down in the Radiation Protection Procedures.

Shielded areas are provided in Zone 3 for the temporary storage of radioactive materials. The ambient and local radiation fields in these areas are placarded, if necessary.

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Radiation dose data is recorded and maintained, as required, by BP-RPP-00001, Radiation Protection Policies and Principles, and BP-RPP-00002, Radiation Protection Requirements.

The Responsible Health Physicist assigned from the Employee Safety Department oversees the Radiation Protection Program for the CMLF.

8.0 CONVENTIONAL HEALTH AND SAFETY

All requirements pertaining to conventional health and safety are addressed to be in

compliance with the codes and regulations of applicable regulatory agencies. The applicable regulatory agencies include; Environment Canada, Ontario Ministry of the Environment, Ministry of Labour, Ministry of Health and Electrical Safety Authority.

All hazardous materials used in the CMLF are identified in the Workplace Hazardous

Materials Information System (WHMIS). Under WHMIS, workers are provided information on hazardous materials through labels, manufacturer’s Material Safety Data Sheets (MSDSs) and worker training programs. Any hazardous material used in the CMLF will have an MSDS which will contain information on handling, storage and waste disposal procedures for that material. The MSDSs will be contained in binders located at Right To Know Stations.

Hazardous materials used at the CMLF include; bleaches, disinfectants, solvents, degreasers, cleaning agents, stripping agents, waxes, spot removers, laundry detergents, heat transfer fluids, greases, lubricants, fuels, welding gases and cutting fluids.

9.0 MANAGEMENT SYSTEM

The requirements of the Management System for design, procurement, construction and performance feedback activities for nuclear projects are documented in BP-PROC-00335, Design Management. The CMLF was designed and constructed in accordance with the Ontario Hydro Miscellaneous Projects, Quality Engineering Program, which defined the extent and scope of the application of the Design and Construction Branch Quality Engineering Manual (Ontario Hydro).

The CMLF operation shall be carried out in accordance with BP-MSM-1, Management System Manual.

10.0 REFERENCES

• Central Maintenance and Laundry Facility Quarterly Technical Reports.

• Canada, 1954, Department of Agriculture Experimental Farms Service, and the Ontario Agricultural College. Soil Survey at Bruce County. Report No. 16 of the Ontario Soil Survey. January, 1954.

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• Gorman, D.J., 1986, The Basis for the Derived Limits for the Emission of Radionuclides in Airborne and Liquid Effluents from Ontario Hydro’s Nuclear Facilities, Safety Services Department, March, 1986.

• ICRP 60 (1990).

• National Working Group, 1982, Recommendations on Models and Measurements

Required for Response to Accidental Radioisotope Releases to the Atmosphere. National Working Group on Atmospheric Releases of Radioisotopes, A. D. Christie, Chairman.

Draft Report 1982.

• Ontario, 1972, Ministry of Natural Resources, Environmental Protection Branch. Lake Huron Shoreline Data on Wildlife, Grand Bend to Baie du Dore. August, 1972.

• Ontario Hydro, 1973, Climatology of Bruce And Douglas Point. Power System Operations Division.

• BP-MSM-1, Management System Manual.

• BP-PROC-00335, Design Management.

• Pilar, G.J., 1983, Radiological Environmental Monitoring Program Design Guide, SSD-83-1.

• Slade, D.H., 1968, (ed.) Meteorology and Atomic Energy, U.S. Atomic Energy Commission, Oak Ridge, TN 37830.

• US NRC, 1972, (U.S. Nuclear Regulatory Commission). Safety Guides for Water-Cooled Nuclear Power Plants, Safety Guide 23: On-Site Meteorological Programs. US AEC, Division of Reactor Standards, Washington, DC 20545.

• BP-OPP-00003, Central Maintenance and Laundry Facility Operating Policies and Principles.

• BP-PROC-00107, Waste Acceptance Criteria for Low and Intermediate Level Radioactive Waste.

• BP-RPP-00001, Radiation Protection Policies and Principles.

• BP-RPP-00002, Radiation Protection Requirements.

• Benovich, I., Guidance for Calculation of Derived Release Limits for Radionuclides in Airborne and Liquid Effluents from OPG Nuclear Facilities, N-REP-03482-10000, July, 2000.

• Guidelines for Calculating Derived Release Limits for Radioactive Material in Airborne and Liquid Effluents for Normal Operation of Nuclear Facilities, CSA/CAN N288.1-M87, 1987.

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• Benovich, I., The Interim Derived Releases Limits for BNPD Central Maintenance Facility, B-REP-03482-00002, R000, December, 1999.

• Guidelines for Radiological Monitoring of the Environment, CSA/CAN N288.4-M90, 1990.

• Lamarre, J., The Updated BNPD Radiological Environmental Monitoring Program, NK37-03443.1-98006, June, 1998.

• Lamarre, J., Annual Summary and Assessment of Environmental Radiological Data for 2000, N-REP-03419-100001, R00, April, 2001.