HomeMy WebLinkAboutPR 665 HS - Indoor Environmental QualityCCt�"
OTTAWA-CARLETON
q°,+BiMK I" ti04001 BOARD
PROCEDURE PR.665.HS
TITLE: HEALTH AND SAFETY — INDOOR ENVIRONMENTAL QUALITY
Date issued
Date last revised:
Authorization:
1.0 OBJECTIVE
07 January 2010
11 December 2012
Senior Staff: 07 January 2010
This procedure has been set out to provide a consistent process to be followed in schools and
administrative sites when concerns are raised related to the indoor environment. The Ontario
Ministry of Labour, under the Occupational Health and Safety Act of Ontario, and its applicable
regulations; and the City of Ottawa, Public Health Unit, under the Health Protection and
Promotion Act of Ontario, have regulatory authority for Indoor Environmental Quality. The
intent of this procedure is to meet the criteria set by this legislation. Successful resolution of
IEQ concerns requires processes in which concerns are handled promptly, responsibilities are
clear, and lines of communication are maintained.
2.0 DEFINITIONS
2.1 Indoor Environmental Quality (IEQ): IEQ comprises all health related aspects of the
indoor environment including air quality, lighting and any other similar workplace related
health concerns.
2.2 Worker: As defined in the Occupational Health and Safety Act, worker means any staff
member, regardless of organizational title, who, for the purposes of this procedure, uses
the space for extended periods of time.
2.3 Occupant: Unless specified otherwise, occupant means a student or person who uses
the space for an extended period of time, such as users and activities that fall under
Community Use of Schools.
3.0 RESPONSIBILITY
Director's Executive Council, principals, vice -principals, managers, supervisors, and the
Supervisor, Occupational Health and Safety are primarily responsible for the implementation of
this procedure.
4.0 PROCEDURES
-1- PR.665. HS
4.1 IEQ-Pre-Assessment-Step 1
(a) Where a worker has a concern related to the IEQ of their work area, the worker
must first complete the IEQ-Pre-assessment Form (OCDSB 992- Appendix
B) and identify and correct, where possible, any deficiencies.
(b) Where an occupant, other than a worker, has a concern related to the IEQ in the
work area, the occupant should report the concern to the principal who will notify
the appropriate area supervisor Facilities Operations to complete the IEQ-Pre-
assessment Form (OCDSB 992 - Appendix B) and identify and correct, where
possible, any deficiencies.
(c) If the concern is not resolved at this level, they should proceed to Step 2 (section
4.2).
4.2 IEQ-Initial Assessment -Step 2
(Assessment conducted by Principal/Manager/Supervisor, with the appropriate Area
Supervisor Facilities Operations, the Chief Custodian and the Worksite Safety
Representative)
(a) The IEQ-Initial Assessment (OCDSB 923 - Appendix C) is a fact-finding
exercise to document and proceed with initial steps to rectify the concern.
(b) Upon receipt of an IEQ concern, i.e., completed IEQ- Pre -Assessment Checklist,
from a worker, the Principal/Manager/Supervisor will review the form and conduct
an IEQ-Initial Assessment of the space in question with the Area Supervisor
Facilities Operations, the Chief Custodian and the Worksite Safety
Representative.
(c) The Principal/Manager/Supervisor will also request that all occupants in the
immediate area of concern complete the IEQ-Occupant Interview Form (OCDSB
665.004 - Appendix E).
(d) The IEQ-Initial Assessment Form (OCDSB 923 - Appendix C) will be used to
complete the initial assessment. The Principal/Manager/Supervisor will address
any deficiencies noted by the appropriate means, which may include temporary
and more permanent control measures. These may involve engineering or
administrative controls, changes in custodial procedures or maintenance work
orders.
(e) The IEQ-Initial Assessment Form must be completed within 7 working days of
receiving the concern (IEQ Pre -Assessment form). There may be corrective
actions that require a longer time -line to complete. It is not mandatory that all
corrective actions be completed within 7 working days. Corrective actions
planned, but not yet completed should be noted on the form.
(f) The IEQ-Initial Assessment Form must then be presented to the worker(s) who
raised the concern so they can indicate whether the concern has been resolved
to their satisfaction or not. Copies of the completed IEQ-Initial Assessment form
will be distributed to the Principal/Manager/Supervisor, the worker(s) who raised
the concern and the Supervisor, Occupational Health and Safety.
(g) Where the concern is not resolved to the satisfaction of the worker who initiated
the concern, the Principal/Manager/Supervisor will forward copies of all related
information to the Supervisor, Occupational Health and Safety including:
-2- PR.665. HS
(i) IEQ-Pre-Assessment Form 922;
(ii) IEQ-Initial Assessment Form 923;
(iii) IEQ-Occupant Interview Form 924; and (iv)
Any associated work orders.
(h) The Supervisor, Occupational Health and Safety will provide a copy of any IEQ-
Initial Assessment form to the Joint Occupational Health and Safety Committee
within three days of receipt.
4.3 IEQ-Detailed Assessment -Step 3 (Investigation conducted by OHS Division)
(a) Upon receipt of an IEQ-Initial Assessment Form marked "unresolved" by the
worker initiating the concern, the OCDSB's OH&S Division shall initiate a detailed
assessment in consultation with the Joint Occupational Health and Safety
Committee within five working days.
(b) The results of this assessment will be provided in writing to the Principal/
Manager/Supervisor. Copies will also be provided to the Worksite Safety
Representative, the Area Supervisor for Facilities Operations, the members of
the Joint Occupational Health and Safety Committee and the supervisory staff of
the Facilities Department.
(c) The Principal/ Manager/Supervisor will post a copy of the report on the safety
bulletin board located in the facility as required by the Occupational Health and
Safety Act.
4.4 Corrective measures -Step 4 (Conducted by site staff and/or Facilities Department)
(a) Minor corrective measures, such as clearing items from in front of air vents, or
filter replacement, will be addressed by the school or administrative site through
the Facilities Department work order system, where appropriate. Site controlled
corrective measures will be addressed by the Principal/ Manager/Supervisor in
cooperation with the Area Supervisor of Facilities Operations where applicable.
(b) Major corrective measures such as modifications to the air handling system, will
be brought forward on behalf of the Principal/ Manager/Supervisor by the Area
Supervisor of Facilities Operations to the Manager and appropriate supervisor(s)
in the Facilities Department. The Manager of the Facilities Department will
review the recommendations and establish a budgeted priority/implementation
plan, to be shared with the Principal/ Manager/Supervisor, the Area Supervisor
Facilities Operations and the Supervisor, Occupational Health and Safety. Mould
remediation, where required, is to be in accordance with the OCDSB Safe Work
Instructions for Small and Medium Scale Mould Growth (Appendix D and E
respectively).
4.5 Communication
(a) Investigative results provided by the OCDSB's Occupational Health and Safety
Division may be made available to parents/guardians if the space is a
classroom, through the Principal, in consultation with the Superintendent.
5.0 APPENDICES
-3- P R.665. H S
(Samples only — Reference the OCDSB Forms Conference for the most current form)
Appendix A — IEQ Procedure Flow Chart
Appendix B — OCDSB 922 — IEQ-Pre-Assessment Form
Appendix C — OCDSB 923 — IEQ-Initial Assessment Form
Appendix D — OCDSB 924 — IEQ-Occupant Interview Form
Appendix E — OCDSB Safe Work Instruction — Remediation of Small Scale Mould Growth
Appendix F — OCDSB Safe Work Instruction — Remediation of Medium Scale Mould Growth
6.0 REFERENCE DOCUMENTS
Occupational Health and Safety Act, RSO 1990
Regulations for Industrial Establishments, O. Reg. 851/90
Health Protection and Promotion Act, RSO 1990
Indoor Air Quality — Tools for Schools Action Kit for Canadian Schools, Health Canada;
OCDSB Policy P.058.HR Occupational Health and Safety
OCDSB Procedure PR.653.HR Health and Safety — Occupational Health and Safety Policy
Implementation
-4- P R.665. H S
Step 1 — IEQ Pre -Assessment
Appendix A
Worker has concern related to IEQ - Completes IEQ-Pre-
Assessment form (OCDSB 665.001 - Appendix B)
Monitor and ensure
activities in the room
(area) do not cause or
contribute to any
adverse effects or
situations.
Step 2 - IEQ-Initial Assessment
YES Concern Resolved? NO Go to Step 2 - IEQ-
Initial Assessment
Worker reports their concern to their
Principal/Manager/Supervisor and the steps they have taken to
date to try and resolve the concern on their own.
The Principal/Manager/Supervisor initiates an investigation as soon as possible with the Area
Supervisor Facilities Operations, the Chief Custodian and the Worksite Safety Representative. The
team reviews and verifies the information on the IEQ-Pre-Assessment Form.
The Area Supervisor, Facilities Operations and the Chief Custodian undertake an assessment of the
facility, using the IEQ-Initial Assessment Form, which includes inspecting the filters and the operation
of the air handling system.
(Tools for Schools, Chapter 8: Classroom Checklist can also be used for this initial assessment.)
The worker(s) who raised the concern indicates on the IEQ-Initial Assessment form whether the
concern has been resolved or remains unresolved.
Principal retains one copy of the completed IEQ-Initial Assessment form, gives one to the worker(s)
who raised the concern and sends one to the Occupational Health and Safety Division within 7
working days of receiving the initial concern (IEQ Pre -Assessment form).
I Concern Resolved? I
YES
Step 3 - IEQ-Detailed Assessment
NO
The Supervisor, OH&S will forward a OH&S Division reviews all related documentation sent by
copy of the completed IEQ-Initial the Principal/Manager/Supervisor, forwards it to the
Assessment form to the JOHSC JOHSC within three working days, and undertakes an
within three working days of receipt. investigation in consultation with the JOHSC within five
working days.
At the conclusion of the investigation, the Supervisor,
OH&S will provide copies of any reports to the JOHSC
and to the Principal/Manager/Supervisor for posting in
the workplace.
-5- P R.665. H S
OTTAWA-+CARLETON
M"MK 15t"It001 BOARD
INDOOR ENVIRONMENTAL QUALITY
IEQ-PRE-ASSESSMENT FORM
(REFERENCE: PR.665.HR)
Appendix B
Concerns relating to poor IEQ are multi -factorial in nature, and can involve chemical, microbiological, physical,
and psychosocial mechanisms. In accordance with Procedure PR.665.HR, this form should be completed
by the worker as a first step to identify and correct any obvious sources of concern. Your observations
can help resolve the concern in a timely manner. Please use the checklist and space below to identify and
describe the nature of the concern.
Checklist:
What is the use of the room, i.e. classroom, vocational/industrial room, office, storage room, science
laboratory, etc?
Please specify:
Yes
No
Don't
know
Are vents and operable windows clear of obstructions?
If the room has mechanical ventilation, and the vents are in easy reach, is air
flowing into the room from the air supply vent(s) and flowing from the room into
the air return grille(s)?
Is the classroom kept clean, tidy and uncluttered?
Does the paper recycle bin contain only paper for recycling?
Does the blue recycle bin for cans, drinking boxes get emptied at least every two
days?
Does the blue recycle bin appear to be clean?
Does the garbage can, when you lift out the plastic bag, appear reasonably
clean?
Are there animals in the room for which there may be allergic reactions?
Please specify the type of animal(s):
Are the animals located near any air vents?
Are there students or staff with environmental or chemical sensitivities?
Are whiteboard markers non -toxic or low toxicity, i.e. Staedtler, Crayola or Expo 2
Low Odour -Non Toxic?
Are flip chart markers non -toxic, i.e. Staedtler, Crayola or other water based flip -
chart markers?
Are there any non-OCDSB approved spray cleaners or disinfectant wipes in the
OCDSB 922 -6- PR.665.HS
room, such as Mr. Clean spray cleaner or Chlorox wipes?
Yes
No
Don't
know
Are there any unusual odours present in the room?
Is it a chemical smell, biological, or damp/musty? Please specify:
Are there any activities undertaken in the room that may generate odours?
What are they? Please specify:
Is there local exhaust to control these odours?
Does the local exhaust appear to be effective in controlling the odours?
Is there any moisture on the windows or other surfaces?
Indicate where the moisture is present (i.e., ceiling tiles, window corners):
Are there any items posted on the exterior windows or items such as stuffed
animals laying against the exterior window?
Is there any discolouration in the building material, such as walls, ceiling or floor?
Please specify:
Are furniture and materials arranged so as to allow for good air movement in the
room (i.e.) not blocking windows, vents or creating obstructions for air
movement?
Is the furniture OCDSB issued?
Is there any furniture that is not OCDSB issue, such as couches, upholstered
chairs; or carpeting; or stuffed toys?
Please identify the items:
Are these items specified purchased new, used from home, a garage sale or the
side of the road on garbage day?
Please specify:
Had this furniture been thoroughly cleaned to ensure there are no dust mites or
other parasitic organisms, mould or bacteria present?
Is upholstered furniture and cloth covered items, including carpeting and foam
mats cleaned at least once a year or more often as required?
Is there any standing water in the room(s), such as pails with used cleaning
solution?
Are there any composting bins, worm factories and other sources of decaying
matter, including dry/dead leaves on indoor plants present in the room?
If so, please specify:
OCDSB 922 -7- PR.665.HS
Nature of Concern (if unresolved):
This portion of the IEQ-Pre-assessment is to be completed when the concern is not resolved after you have
completed the above IEQ-Pre-assessment checklist and attempted unsuccessfully to resolve the deficiencies
on your own. Complete this section and provide to your Principal/Manager/Supervisor.
Personal information on this form is collected under the authority of the Occupational Health and Safety Act of Ontario and will only be
used in connection with processing the activities under the Indoor Environmental Quality procedure. If you wish to review this
information or have questions regarding its collection, please contact the Supervisor, Occupational Health and Safety Division, 1645
Woodroffe Avenue, Ottawa, ON (613) 596-8211.
To be completed by the worker(s) raising the concern - CONCERN ❑ RESOLVED or ❑ UNRESOLVED
Next Steps: If the IEQ concern is not resolved after the above steps have been followed, please submit this
form to the Principal/Manager/Supervisor, who will complete an INDOOR ENVIRONMENTAL QUALITY (IEQ)-
INTIAL ASSESSMENT (OCDSB 665.002) within 7 working days of receiving an IEQ concern (this form).
Retain 1 copy
OCDSB 922 -8- PR.665.HS
Appendix C
INDOOR ENVIRONMENTAL QUALITY
CC � IE -INITIAL ASSESSMENT FORM
OTTAWA-+CARLETON
DBti"TRK 15t"It001 BOARD
(REFERENCE: PR.665.HR)
Concerns relating to poor IEQ are multi -factorial in nature, and can involve chemical, microbiological, physical,
and psychosocial mechanisms. In accordance with Procedure PR.665.HR, this form should be completed by
the Principal/Manager/Supervisor in collaboration with the Area Supervisor Facilities Operations, the Chief
Custodian and the Worksite Safety Representative, as the second step to identify and correct any sources of
the worker(s)/occupant(s) concern. Please use the checklist and space below to identify and list actions taken
to rectify the concern.
Checklist:
Chief Custodian and Area Supervisor Facilities Operations complete initial assessment checklist
below:
❑ Verify the pre -assessment is accurate with the Principal/Manager/Supervisor and the Worksite Safety
Representative.
❑ Verify that all supply, return and exhaust fans are operating.
❑ Inspect the air intake filters to ensure that they are in good condition.
❑ Inspect dampers to determine that they are at least partially open. Note that on days with extreme
outdoor temperatures, fresh air dampers must never be fully closed.
❑ Ensure that the belts on the fan units are in good working order.
❑ Ensure/inspect the ductwork and faces of supply and return grilles to ensure there are no obstructions
and no debris.
❑ Look for obvious sources of unusual odours.
❑ Look for signs of uncontrolled sources of water/moisture (under sinks, ceiling tiles, etc.)
❑ Issue any work orders required.
❑ Report findings, action taken and work order numbers and descriptions back to the supervisor of the
site, the Worksite Safety Representative and your area supervisor of Facilities Operations.
Additional items for verification can be found in the Indoor Air Quality - Tools for Schools Action Kit for
Canadian Schools, Health Canada, at http://www.hc-sc.gc.ca/ewh-semt/pubs/air/tools school-
outils ecoles/index-eng.php .
*The specific chapter checklists to be used will be dependent on the area(s) of concern in the building.
OCDSB 923 -9- PR.665.HS
Description of the concern / problem:
Work orders identified and completed.
Note: Work orders submitted to Facilities Maintenance, should be accompanied by a copy of this completed IEQ-
Initial Assessment form with the work order.
Principal/Manager/Supervisor Name:
To be completed by worker(s) raising the concern - CONCERN L7RESOLVED or L7 UNRESOLVED
Retain one copy, give one copy to the worker(s) raising the concern, and send one copy to the
Supervisor, Occupational Health and Safety by e-mail or by fax at 613-596-8284 within 7 working days
of receiving an IEQ concern (IEQ Pre -Assessment form).
Personal information on this form is collected under the authority of the Occupational Health and Safety Act of Ontario and
will only be used in connection with processing the activities under the Indoor Environmental Quality procedure. If you wish
to review this information or have questions regarding its collection, please contact the Supervisor, Occupational Health and
Safety Division, 1645 Woodroffe Avenue, Ottawa, ON (613) 596-8211.
OCDSB 923 -10- PR.665.HS
APPENDIX D
INDOOR ENVIRONMENTAL QUALITY
CC � IEQ-INTERVIEW FORM
LETON
MSTO' 04001BOARD (REFERENCE: PR.665.HR)
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Concerns relating to poor IEQ are multi -factorial in nature, and can involve chemical, microbiological, physical,
and psychosocial mechanisms. In accordance with Procedure PR.665.HR, this form should be completed
by the worker(s)/occupant(s) in the immediate vicinity of the area of concern, as requested by the
Principal/Manager/Supervisor, as part of the second step and moving the concern forward to the
investigation stage. The information on this form will be considered confidential and disclosed only as
required for purposes of investigating and resolving IEQ concerns.
SYMPTOM PATTERNS
What kind of symptoms or discomfort are you experiencing?
Are you aware of other people with similar symptoms or concerns? ❑ Yes
If so, please advise them of this procedure and encourage them to complete this form so that
it can be submitted to assist with the investigation.
Do you have any health conditions that may make you particularly susceptible to environmental problems?
Please explain.
TIMING PATTERNS
When did your symptoms start?
OCDSB 924 -11- PR.665.HS
When are they generally worse?
Do they go away? If so, when?
Have you noticed any other events (such as weather events, temperature or humidity changes, or activities in
the building) that tend to occur around the same time as your symptoms?
SPATIAL PATTERNS
Where are you when you experience symptoms or discomfort?
Where do you spend most of your time in the building?
ADDITIONAL INFORMATION
Do you have any observations about building conditions that might need attention or might help explain your
symptoms (e.g., temperature, humidity, drafts, stagnant air, or odours)?
OCDSB 924 -12- PR.665.HS
Have you sought medical attention for your symptoms?
Do you have any other comments?
Personal information on this form is collected under the authority of the Occupational Health and Safety Act of Ontario and will only be
used in connection with processing the activities under the Indoor Environmental Quality procedure. If you wish to review this
information or have questions regarding its collection, please contact the Supervisor, Occupational Health and Safety Division, 1645
Woodroffe Avenue, Ottawa, ON (613) 596-8211.
Please return the completed form, in a sealed envelope, to your Principal/Manager/Supervisor.
NOTE: Provision of your name and contact information on this form is optional. However, it will allow the
Occupational Health and Safety Division to follow up in case further clarification is required.
Next Steps: Completed forms (in separate, sealed envelopes) to accompany completed OCDSB 665.002,
IEQ-Initial Assessment, and forwarded to the Occupational Health and Safety Division, Confederation
Education Centre, Room 109.
Retain 1 copy
OCDSB 924 -13- PR.665.HS
• Appendix E
SAFE WORK INSTRUCTIONS
Remediation of Small Scale Mould Growth (Level I - less than 1m2)
I!I ti`f'4tIK m 1INS pY 2Y. IKkAlf4lu
1. Half -Faced air purifying respirator with N95 or HEPA particulate filter cartridge(s)
2. CSA approved safety eyewear
3. Disposable coveralls
4. Disposable or non -disposable rubber gloves
5. Leather work gloves (as necessary to prevent hand injury)
1. Remove occupants from the room/area where work will take place.
2. Turn off HVAC systems and seal over all system openings (e.g., diffusers and return air openings) within or
immediately adjacent to the work area.
Movable non -porous items within the work area shall be cleaned with a HEPA vacuum, followed by a suitable
cleaning solution, and then removed from the work site.
4. Fixed non -porous items within the work area shall be first cleaned with a HEPA vacuum and wet wiped, then sealed
under polyethylene sheeting taped in place during remediation work.
5. Wherever possible, place a drop sheet below the materials being removed.
6. Tape a section of plastic sheeting or duct tape over mouldy material, or lightly mist the mouldy material with
amended water before removal. Do not sweep or dry brush the material.
7. Remove any porous substrate materials (ceiling tiles, drywall, framing, etc.) well beyond the immediate areas of
visible contamination (at least 30cm in all directions).
8. Seal all waste material, including debris, personal protective equipment and plastic sheeting in a 6 mil disposal bag.
Wet -wipe or HEPA vacuum the bag and then seal it in a second clean, 6 mil disposal bag.
9. After removal of contaminated material, clean all exposed surfaces (including plastic sheeting) within the work area
using a HEPA vacuum or by wet -wiping.
10. Clean all equipment used in the remediation work using a HEPA vacuum and by wet -wiping. Equipment that can
not be readily cleaned (e.g., vacuum hoses or wire brushes) shall be HEPA vacuumed and sealed in a 6 mil
polyethylene bag before removal from the work area.
11. Dispose of the waste material in the regular waste stream.
12. Wash face and hands and clean and maintain respirator after completion of mould abatement.
13. Leave all areas dry and visibly free from contamination and debris, and ensure that surfaces are adequately dry
prior to installation of new materials.
SupplementarySafe Work —
1. Workers must have been fit tested and trained for respirator use.
2. Do not use compressed air mechanical devices to clean up or remove contamination.
3. Review MSDS for any controlled products used during the work.
Note any changes required to these Procedures and forward to your supervisor.
-14- P R.665. H S
1. Half -Faced air purifying respirator with N95 or HEPA particulate filter cartridge(s)
2. CSA approved safety eyewear
3. Full -body dust impervious coveralls, with hood, secured with tape at the ankles and wrists
4. Rubber gloves
5. Leather work gloves (as necessary to prevent hand injury)
1. Remove occupants from the room/area where work will take place.
2. A person with mould remediation training must be present during all decontamination work.
Isolate the work area with an enclosure constructed of 6 mil polyethylene sheeting, taped and supported as
required. Provide a temporary roof where the ceiling does not complete the temporary structure. Use fibre -
reinforced polyethylene for covering floors.
4. Provide a negative pressure within the enclosure by drawing air from the work area and exhausting it out of the
enclosure, by using an exhaust fan (to outdoors), a HEPA vacuum, or HEPA air filtration device (negative air
machine). Provide a negative pressure of 5 Pascals (0.02 inches of water column. Wherever possible, discharged
filtered air outside the building and away from people.
5. Turn off HVAC systems and seal over all system openings (e.g., diffusers and return air openings) within or
immediately adjacent to the work area.
6. Movable non -porous items within the work area shall be cleaned with a HEPA vacuum, followed by a suitable
cleaning solution, and then removed from the work site.
Fixed non -porous items within the work area shall be first cleaned with a HEPA vacuum and wet wiped, then sealed
under polyethylene sheeting taped in place during remediation work.
8. Wherever possible, place a drop sheet below the materials being removed.
9. Tape a section of plastic sheeting or duct tape over mouldy material, or lightly mist the mouldy material with
amended water before removal. Do not sweep or dry brush the material.
10. Remove any porous substrate materials (ceiling tiles, drywall, framing, etc.) well beyond the immediate areas of
visible contamination (at least 30cm in all directions).
11. Seal all waste material, including debris, personal protective equipment and plastic sheeting in a 6 mil disposal bag.
Wet -wipe or HEPA vacuum the bag and then seal it in a second clean, 6 mil disposal bag.
12. After removal of contaminated material, clean all exposed surfaces (including plastic sheeting) within the work area
using a HEPA vacuum or by wet -wiping.
13. Clean all equipment used in the remediation work using a HEPA vacuum and by wet -wiping. Equipment that can
not be readily cleaned (e.g., vacuum hoses or wire brushes) shall be HEPA vacuumed and sealed in a 6 mil
polyethylene bag before removal from the work area.
14. Wet wipe all protective clothing before leaving the enclosure.
15. Remove all protective clothing immediately upon leaving the enclosure and discard any disposable items.
16. Dispose of the waste material in the regular waste stream.
17. Wash face and hands and clean and maintain respirator after completion of mould abatement.
18. Leave all areas dry and visibly free from contamination and debris, and ensure that surfaces are adequately dry
prior to installation of new materials.
1. Workers must have completed Level II mould remediation training.
2. Workers must have been fit tested and trained for respirator use.
3. Do not use compressed air mechanical devices to clean up or remove contamination.
4. Review MSDS for any controlled products used during the work.
Note any changes required to these Procedures and forward to your supervisor.
-15- P R.665. H S
Appendix F
SAFE WORK INSTRUCTIONS
O TAWA-CA[4V..F. ION Remediation of Medium Scale Mould Growth (Level II -1 m2 - 10m2)
D1%I RJO S"I I001 KOMUI
1. Half -Faced air purifying respirator with N95 or HEPA particulate filter cartridge(s)
2. CSA approved safety eyewear
3. Full -body dust impervious coveralls, with hood, secured with tape at the ankles and wrists
4. Rubber gloves
5. Leather work gloves (as necessary to prevent hand injury)
1. Remove occupants from the room/area where work will take place.
2. A person with mould remediation training must be present during all decontamination work.
3. Isolate the work area with an enclosure constructed of 6 mil polyethylene sheeting, taped and supported as
required. Provide a temporary roof where the ceiling does not complete the temporary structure. Use fibre -
reinforced polyethylene for covering floors.
4. Provide a negative pressure within the enclosure by drawing air from the work area and exhausting it out of the
enclosure, by using an exhaust fan (to outdoors), a HEPA vacuum, or HEPA air filtration device (negative air
machine). Provide a negative pressure of 5 Pascals (0.02 inches of water column. Wherever possible, discharged
filtered air outside the building and away from people.
5. Turn off HVAC systems and seal over all system openings (e.g., diffusers and return air openings) within or
immediately adjacent to the work area.
6. Movable non -porous items within the work area shall be cleaned with a HEPA vacuum, followed by a suitable
cleaning solution, and then removed from the work site.
7. Fixed non -porous items within the work area shall be first cleaned with a HEPA vacuum and wet wiped, then sealed
under polyethylene sheeting taped in place during remediation work.
8. Wherever possible, place a drop sheet below the materials being removed.
9. Tape a section of plastic sheeting or duct tape over mouldy material, or lightly mist the mouldy material with
amended water before removal. Do not sweep or dry brush the material.
10. Remove any porous substrate materials (ceiling tiles, drywall, framing, etc.) well beyond the immediate areas of
visible contamination (at least 30cm in all directions).
11. Seal all waste material, including debris, personal protective equipment and plastic sheeting in a 6 mil disposal bag.
Wet -wipe or HEPA vacuum the bag and then seal it in a second clean, 6 mil disposal bag.
12. After removal of contaminated material, clean all exposed surfaces (including plastic sheeting) within the work area
using a HEPA vacuum or by wet -wiping and using an EPA -Registered Antimicrobial Disinfectant if necessary.
13. Clean all equipment used in the remediation work using a HEPA vacuum and by wet -wiping. Equipment that can not
be readily cleaned (e.g., vacuum hoses or wire brushes) shall be HEPA vacuumed and sealed in a 6 mil
polyethylene bag before removal from the work area.
14. Wet wipe all protective clothing before leaving the enclosure.
15. Remove all protective clothing immediately upon leaving the enclosure and discard any disposable items.
16. Dispose of the waste material in the regular waste stream.
17. Wash face and hands and clean and maintain respirator after completion of mould abatement.
18. Leave all areas dry and visibly free from contamination and debris, and ensure that surfaces are adequately dry
prior to installation of new materials.
1. Workers must have completed Level II mould remediation training.
2. Workers must have been fit tested and trained for respirator use.
3. Do not use compressed air mechanical devices to clean up or remove contamination.
4. Do not use bleach to clean affected areas
5. Review MSDS for any controlled products used during the work.
Note any changes required to these Procedures and forward to your supervisor.
-16- PR.665.HS