ASBESTOS ABATEMENT PROJECT COMPLETION REPORT

Transcription

1 ASBESTOS ABATEMENT PROJECT COMPLETION REPORT Windows and Door Replacement Program Falstaff Community Centre 50 Falstaff Avenue Toronto, Ontario M6L 2C7 Presented to: City of Toronto, Parks, Forestry & Recreation 399 The West Mall Toronto, Ontario M9C 2Y2 June 2016 OHE Project No: Submitted by: OHE Consultants Occupational Hygiene & Environment 311 Matheson Blvd. East Mississauga, Ontario L4Z 1X8 Head Office: 311 Matheson Blvd. East, Mississauga, ON, L4Z 1X8 Tel: Fax: Toll Free: OHE 4 EOH Offices in British Columbia, Alberta, Quebec, Nova Scotia, Ajax, Peterborough

2 TABLE OF CONTENTS 1. INTRODUCTION DESCRIPTION OF WORK SCOPE OF WORK ON-SITE INSPECTIONS AIR SAMPLING AND ANALYSIS FOR AIRBORNE FIBRES Methodology for Sample Collection Methodology for Sample Analysis RESULTS ANALYSIS AND DISCUSSION AIR SAMPLING FOR AIRBORNE FIBRES CONCLUSIONS GENERAL STATEMENT OF LIMITATIONS... 4 Appendix A Appendix B: Daily Activities Reports Phase Contrast Microscopy (PCM) Analysis Report

3 Asbestos Abatement Project Completion Report City of Toronto, Parks, Forestry & Recreation, Falstaff Community Centre 50 Falstaff Avenue, Toronto, Ontario Project No.: June INTRODUCTION OHE Consultants (OHE) was retained by the City of Toronto, Parks, Forestry & Recreation to conduct on-site inspections during the asbestos abatement operations for the Windows and Doors Replacement Project at Falstaff Community Centre located at 50 Falstaff Avenue, Toronto, Ontario (herein referred to as the Subject Location ). This report provides a summary of the work that was completed at the Subject Location. The onsite abatement work was completed on April 20, The asbestos removal work was completed by Cosar GC. PM who removed, transported and disposed of the Asbestos-Containing Materials (ACMs) in accordance with the instructions given by OHE and the following regulations: Ontario Regulation 278/05 Asbestos on Construction Projects and in Buildings and Repair Operations made under the Occupational Health and Safety Act (O. Reg. 278/05); Ontario Regulation 347/90 (as amended) General Waste Management made under the Environmental Protection Act; and The Regulations Respecting the Handling and Offering for Transport and Transporting of Dangerous Goods. The specified work was completed satisfactorily and according to the issued specifications and the established regulations and guidelines. 2. DESCRIPTION OF WORK 2.1. Scope of Work The scope of the abatement included the removal of: asbestos-containing caulking around the exterior doors and windows, existing asbestos contaminated materials, and materials that become contaminated by asbestos as a result of the cleanup and repair operation, following Type 1 operation procedures as per O. Reg. 278/ On-Site Inspections On-site inspections were carried out following the completion of the asbestos abatement operations. The purpose of the inspection was to ensure that the abatement work was executed properly and in OHE Consultants Page 1

4 Asbestos Abatement Project Completion Report City of Toronto, Parks, Forestry & Recreation, Falstaff Community Centre 50 Falstaff Avenue, Toronto, Ontario Project No.: June 2016 compliance with issued specifications and the applicable regulations and guidelines. The following activities were carried out during the on-site inspections: Interaction with the contractor s site supervisor and formulation of a progress action plan and completion schedule for each work area; Inspection of the work area(s) following the abatement operations to ensure that all the materials specified for removal were removed and that the work areas had been properly cleaned; and Preparation of daily activities report. The report is usually completed at the end of each shift and includes the following: o A summary of findings regarding each of the above mentioned activities; o Any issues and problems arising from site operations and a summary of the means by which they were resolved; and o Comments on the progress of the project and the schedule. 2.3 Air Sampling and Analysis for Airborne Fibres Air sampling for airborne fibre concentrations was conducted to ensure that the work was performed safely and according to prescribed procedures Methodology for Sample Collection Air sampling was carried out using AC-powered high flow vacuum pumps. The pumps were calibrated using an electronic Dry-Cal DC Lite primary standard calibrator and a filter cassette in-line. During calibration, the filter cassette was mounted inside an air tight jar to obtain a true representation of the open face filter cassette sampling technique. Samples were collected on a cellulose ester membrane filter with 0.8 micrometre pore size and 25 millimetre diameter. The filter was mounted inside a three piece filter cassette with two inch cowl. The volume of air collected for each sample was adjusted based on the anticipated airborne fibre level to achieve an adequate loading of fibres on the surface of the filter Methodology for Sample Analysis Analysis of the air samples was performed by Phase Contrast Microscopy (PCM). Procedures specified in NIOSH method #7400 were followed. This method does not distinguish between fibre types and only counts those fibres that are longer than 5 micrometers with an aspect ratio of 3:1 or greater, length to width. Analysis of the samples was performed on site immediately after the collection of the samples. In addition, field blank samples were analyzed for quality assurance and OHE Consultants Page 2

5 Asbestos Abatement Project Completion Report City of Toronto, Parks, Forestry & Recreation, Falstaff Community Centre 50 Falstaff Avenue, Toronto, Ontario Project No.: June 2016 quality control purposes. 3. RESULTS The results of the visual inspections that were carried out during the asbestos abatement project are detailed in the Daily Activities Report found in Appendix A. The results of the analysis of air samples for airborne fibres concentrations are presented in the Phase Contrast Microscopy (PCM) Analysis Reports presented in Appendix B. 4. ANALYSIS AND DISCUSSION 4.1 Air Sampling for Airborne Fibres Asbestos is a naturally occurring mineral divided into two mineral groups: Serpentine and Amphibole. The division between the two types of asbestos is based upon the crystalline structure. The fibres of asbestos are long and thin, easily distinguishable when compared with non-asbestos minerals. The construction industry has been using asbestos for many years because of the ability of asbestos to withstand high temperatures as well as its strength and resistance to corrosive chemicals. When asbestos-containing materials are disturbed dust is released into the air that contains asbestos fibers that have the potential to be inhaled into the lungs. Depending on the size of the individual fibers inhaled, some fibers can make their way deep into the air sacs (alveoli) of the lungs. Exposure to asbestos fibers may result in scarring of the lung tissue (asbestosis), cancer of the chest cavity (mesothelioma) or other asbestos related cancers. The results of the air sampling for airborne fibres (asbestos) were found to be within the requirements of O. Reg. 278/05 (<0.05 f/cc) and were considered acceptable. 5. CONCLUSIONS The visual inspection completed during the project revealed that the asbestos-containing caulking was removed as specified to accommodate the Windows and Doors Replacement Program. Based on the results of the post-abatement visual inspection and air sampling, the work area was considered suitable for re-occupancy. OHE Consultants Page 3

6 Asbestos Abatement Project Completion Report City of Toronto, Parks, Forestry & Recreation, Falstaff Community Centre 50 Falstaff Avenue, Toronto, Ontario Project No.: June GENERAL STATEMENT OF LIMITATIONS The information and opinions rendered in this report are for use exclusively by City of Toronto, Parks, Forestry & Recreation. OHE Consultants (OHE) reserves the right to review and comment on any interpretation of the data or conclusions derived by the City of Toronto, Parks, Forestry & Recreation. No other representation, either expressed or implied, is included in this report. OHE has exercised a degree of thoroughness and competence that is consistent with the profession during the execution of the project. OHE considers the opinions and information as they are presented in this report to be factual at the time of the project in the subject space. OHE relied on professional judgment while gathering and analyzing the information obtained. OHE cannot warrant or guarantee that the conclusions reached are absolutely complete or accurate. However, OHE commits itself to care and competence in reaching those conclusions. We trust that this report meets with your requirements. Please do not hesitate to contact us should you have any questions or require further information. Sincerely, OHE Consultants Occupational Hygiene & Environment Prepared by: Salim Sayed, M.OHS. Project Consultant Reviewed by: Trudy Kim, B.Sc., EP Project Manager Reviewed by: Michal Zitnik, M.H.Sc., ROH, CIH Senior Consultant OHE Consultants Page 4

7 APPENDIX A DAILY ACTIVITIES REPORTS OHE Consultants

8 ASBESTOS ABATEMENT PROJECT DAILY ACTIVITIES REPORT Client: City of Toronto, Parks, Forestry & Recreation Date: April 18, 2016 Project Location: 50 Falstaff Avenue, Toronto, Ontario Inspector: Trudy Kim Project No.: Page: Page 1 of 2 Work Area: Work Area Community Centre Exterior Windows #2, 3, 6, 7, 8, 9 and 11 PREPARATION PHASE 1 2 REMOVAL PHASE 1 2 CLEARANCE VISUAL INSPECTION 1 2 Specified Submittals Received; Notices Posted Enclosure Inspected for Defects Before Starting Asbestos-Containing Materials Removed and/or Repaired Y 1 Supervisor Appointed for Every Shift Work Discontinued Until all Defects Repaired Mould Impacted Materials Removed - - Notifications Completed Appropriate Neg. Pressure Established Lead-Containing Materials Removed - - Existing Damaged Survey Completed and Approved Building Security Arrangements Made Inaccessible ACM Properly Identified - - Prohibitions are Being Adhered to Notice of Project Posted Garbage Bags Removed from Work Area N 2 Ventilation System Disabled & Locked Out & Tagged Asbestos Warning Signs Posted Equipment Removed from Work Area N 2 Air Ducts Capped Outside Work Area Workers Using Proper PPE and Clothing Surfaces (Vertical/Horizontal) Clean - - Work Area Isolated by Hording Walls as Specified Authorization Obtain from Inspector to Start Work Scaffolds/Ladders Clean - - Surfaces Pre-Cleaned by HEPA Vacuuming Wetting is Done Using Airless Sprayers Pipe Lagging Recessed Into Wall and Sealed - - Movable Objects Removed From Work Area Wetting is Done Using Amended Water Waste and Worker Decon. Facilities Clean and Dry - - Stationary Objects Sealed with Rip Proof Poly Openings Sealed Immediately Once Discovered Clean Neg. Air Filters Installed - - Walls and Floors Protected as Specified Material Wetted Down to Substrate; No Dripping Surface Film Removed and Cleaned - - Workers and Waste Decontamination Unit(s) Setup Material Sprayed Regularly During Removal Authorization Obtained Before Applying Lock-Down - - Shower Unit(s) have Hot & Cold Running Water Air Misted Regularly Lock-Down Applied Using Airless Sprayers - - Showers Supplied with Shampoo and Towels Material and Other Waste Bagged Immediately Workers Using Proper Respiratory Protection - - Required Platforms and Tunnels Setup Yellow Labeled Bags Being Used Lock-Down Agent Applied in Decon. Chambers - - Poly Supported to Avoid Billowing Waste Water Collected Regularly; No Pooling Settling Period Completed - - Weighted Flaps Used to Create Decon. Air Locks Waste Water Passed Through Filter before Discharge Clearance Air Samples Collected - - Negative Air Pressure Established (3 changes per hour) Deck Mounted Objects Removed to Allow Cleaning Clearance Air Samples Passed - - Pressure Differential Continuously Monitored Surveillance and Other Equipment Properly Cleaned Clearance Swab Samples Collected - - Back up Neg. Air Units are Setup Overspray Material Properly Cleaned Clearance Swab Samples Passed - - Neg. Air Units DOP Tested Waste bags Double Bagged Authorization Given to Dismantle Enclosure - - Neg. Air Units Being Exhausted Outdoors Bags Properly Decontaminated Before Removal One Layer of Poly is Kept in Place for Re-Fireproofing - - Water from Showers Being Filtered Before Discharge Waste Removed During Specified Times Work Area Cleaned After Poly Removed - - Contractor Using Grounded Electrical Panels Protective Clothing Repaired or Replaced if Torn Fire and Emergency Exits from Work Area Established Surfaces Thoroughly Cleaned After Gross Removal Fire Extinguishers Installed in Work Area Neg. Air Filters Changed Regularly During Shift Electrical Power Isolated Only in Work Area Work Area Left Clean at End of Shift Electrical Work Performed by Licensed Electrician Floors Dry Outside Containment Removal Equipment Present in Work Area Enclosure Inspected Before End of Shift Workers Using Proper Protective Equipment/Clothing Exit Procedures Followed by All Workers Warning Signs Posted at Access Points to Work Area Surfaces in Decon. Unit Left Dry Contractor using Own Temporary Lighting Air Samples Collected During Removal Operation Airless Wetting Sprayers to be Used Levels are Acceptable (<0.05 fibres/cc) Upper Seals Erected where Required Work Areas Left Secure at End of Shift Closed Waste Bins Present on Site Contractor Waited for Authorization to Start Removal 1 Indicate Yes (Y) or No (N) 2 Elaboration on the Next Page ( - ) Not Applicable

9 ASBESTOS ABATEMENT PROJECT DAILY ACTIVITIES REPORT Client: City of Toronto, Parks, Forestry & Recreation Date: April 18, 2016 Project Location: 50 Falstaff Avenue, Toronto, Ontario Inspector: Trudy Kim Project No.: Page: Page 2 of 2 Work Area: Work Area Community Centre Exterior Windows #2, 3, 6, 7, 8, 9 and 11 OHE Consultants (OHE) was retained by the City of Toronto, Parks, Forestry & Recreation to provide part-time inspections during the asbestos abatement operations as part of Windows and Door Replacement Project at the Falstaff Community Centre located at 50 Falstaff Avenue, Toronto, Ontario. Asbestos abatement operations that took place followed Type 1 operation procedures as outlined in Ontario Regulation, Asbestos on Construction Projects and in Buildings and Repair Operations made under the Occupational Health and Safety Act (O. Reg. 278/05). Trudy Kim (TK) of OHE arrived on-site and met with the Project Manager, Michael Suppa (MS) from Cosar GC. PM on April 18, There were six (6) workers on-site, at the time of the site visit. The asbestos-containing materials scheduled for removal included the following: caulking around the exterior door and window frames. The following observations were noted during the clearance visual inspection: 1. The following materials were removed from the Work Area: Caulking around the exterior door and window frames. 2. Waste was found stored in the enclosed front yard for final removal. Removal equipment was also found stored in the front yard. The area was however, restricted and marked by caution tape. OHE found that the caulking was removed, as specified.

10 ASBESTOS ABATEMENT PROJECT DAILY ACTIVITIES REPORT Client: City of Toronto, Parks, Forestry & Recreation Date: April 20, 2016 Project Location: 50 Falstaff Avenue, Toronto, Ontario Inspector: Salim Sayed Project No.: Page: Page 1 of 2 Work Area: Work Area Community Centre, Main Entrance PREPARATION PHASE 1 2 REMOVAL PHASE 1 2 CLEARANCE VISUAL INSPECTION 1 2 Specified Submittals Received; Notices Posted Enclosure Inspected for Defects Before Starting Asbestos-Containing Materials Removed and/or Repaired Y 1 Supervisor Appointed for Every Shift Work Discontinued Until all Defects Repaired Mould Impacted Materials Removed - - Notifications Completed Appropriate Neg. Pressure Established Lead-Containing Materials Removed - - Existing Damaged Survey Completed and Approved Building Security Arrangements Made Inaccessible ACM Properly Identified - - Prohibitions are Being Adhered to Notice of Project Posted Garbage Bags Removed from Work Area N 2 Ventilation System Disabled & Locked Out & Tagged Asbestos Warning Signs Posted Equipment Removed from Work Area N 2 Air Ducts Capped Outside Work Area Workers Using Proper PPE and Clothing Surfaces (Vertical/Horizontal) Clean - - Work Area Isolated by Hording Walls as Specified Authorization Obtain from Inspector to Start Work Scaffolds/Ladders Clean - - Surfaces Pre-Cleaned by HEPA Vacuuming Wetting is Done Using Airless Sprayers Pipe Lagging Recessed Into Wall and Sealed - - Movable Objects Removed From Work Area Wetting is Done Using Amended Water Waste and Worker Decon. Facilities Clean and Dry - - Stationary Objects Sealed with Rip Proof Poly Openings Sealed Immediately Once Discovered Clean Neg. Air Filters Installed - - Walls and Floors Protected as Specified Material Wetted Down to Substrate; No Dripping Surface Film Removed and Cleaned - - Workers and Waste Decontamination Unit(s) Setup Material Sprayed Regularly During Removal Authorization Obtained Before Applying Lock-Down - - Shower Unit(s) have Hot & Cold Running Water Air Misted Regularly Lock-Down Applied Using Airless Sprayers - - Showers Supplied with Shampoo and Towels Material and Other Waste Bagged Immediately Workers Using Proper Respiratory Protection - - Required Platforms and Tunnels Setup Yellow Labeled Bags Being Used Lock-Down Agent Applied in Decon. Chambers - - Poly Supported to Avoid Billowing Waste Water Collected Regularly; No Pooling Settling Period Completed - - Weighted Flaps Used to Create Decon. Air Locks Waste Water Passed Through Filter before Discharge Clearance Air Samples Collected - - Negative Air Pressure Established (3 changes per hour) Deck Mounted Objects Removed to Allow Cleaning Clearance Air Samples Passed - - Pressure Differential Continuously Monitored Surveillance and Other Equipment Properly Cleaned Clearance Swab Samples Collected - - Back up Neg. Air Units are Setup Overspray Material Properly Cleaned Clearance Swab Samples Passed - - Neg. Air Units DOP Tested Waste bags Double Bagged Authorization Given to Dismantle Enclosure - - Neg. Air Units Being Exhausted Outdoors Bags Properly Decontaminated Before Removal One Layer of Poly is Kept in Place for Re-Fireproofing - - Water from Showers Being Filtered Before Discharge Waste Removed During Specified Times Work Area Cleaned After Poly Removed - - Contractor Using Grounded Electrical Panels Protective Clothing Repaired or Replaced if Torn Fire and Emergency Exits from Work Area Established Surfaces Thoroughly Cleaned After Gross Removal Fire Extinguishers Installed in Work Area Neg. Air Filters Changed Regularly During Shift Electrical Power Isolated Only in Work Area Work Area Left Clean at End of Shift Electrical Work Performed by Licensed Electrician Floors Dry Outside Containment Removal Equipment Present in Work Area Enclosure Inspected Before End of Shift Workers Using Proper Protective Equipment/Clothing Exit Procedures Followed by All Workers Warning Signs Posted at Access Points to Work Area Surfaces in Decon. Unit Left Dry Contractor using Own Temporary Lighting Air Samples Collected During Removal Operation Airless Wetting Sprayers to be Used Levels are Acceptable (<0.05 fibres/cc) Upper Seals Erected where Required Work Areas Left Secure at End of Shift Closed Waste Bins Present on Site Contractor Waited for Authorization to Start Removal 1 Indicate Yes (Y) or No (N) 2 Elaboration on the Next Page ( - ) Not Applicable

11 ASBESTOS ABATEMENT PROJECT DAILY ACTIVITIES REPORT Client: City of Toronto, Parks, Forestry & Recreation Date: April 20, 2016 Project Location: 50 Falstaff Avenue, Toronto, Ontario Inspector: Salim Sayed Project No.: Page: Page 2 of 2 Work Area: Work Area Community Centre, Main Entrance OHE Consultants (OHE) was retained by the City of Toronto, Parks, Forestry & Recreation to provide part-time inspections during the asbestos abatement operations as part of Windows and Door Replacement Project at the Falstaff Community Centre located at 50 Falstaff Avenue, Toronto, Ontario. Asbestos abatement operations that took place followed Type 1 operation procedures as outlined in Ontario Regulation, Asbestos on Construction Projects and in Buildings and Repair Operations made under the Occupational Health and Safety Act (O. Reg. 278/05). Salim Sayed (SS) of OHE arrived on-site and met with the Project Manager, Michael Suppa (MS) from COSAR GC. PM on April 20, There were two (2) workers on-site, at the time of the site visit. The asbestos-containing materials scheduled for removal included the following: Caulking around the gap between the exterior brick wall and main door frame. The following observations were noted during the clearance visual inspection: 1. The following materials were removed from the Work Area: Caulking around the gap between the brick wall and main door frame. 2. All waste was found stored in the enclosed front yard for final removal. Removal equipment was also found stored in the front yard. The area was however, restricted and marked by caution tape. OHE found that the caulking was removed, as specified.

12 APPENDIX B PHASE CONTRAST MICROSCOPY (PCM) ANALYSIS REPORT OHE Consultants

13 PHASE CONTRAST MICROSCOPY (PCM) ANALYSIS REPORT 0.05 LEVEL OHE Project No.: Work Area Community Centre, Various Work Areas Client: City of Toronto, Parks, Forestry and Recreation Division Shift Date: May 19, 2016 Project Location: 50 Falstaff Avenue Contractor: COSAR GC. PM Sample # Sampling Date Sampling Location Sampling Time (minutes) Air Volume Sampled (Liters) Fibre Concentration (f/cm 3 ) May 19, 2016 Work Area1: Craft Room, East of Offices - Clearance < May 19, 2016 Work Area 2: Offices - Clearance < May 19, 2016 Work Area 3: Activity Room - Clearance < May 19, 2016 Work Area 4: Gym, North Side - Clearance < May 19, 2016 Blank #1 NA NA NA May 19, 2016 Blank #2 NA NA NA The concentration of airborne asbestos fibers should be less than 0.05 f/cm 3 for an area to be considered suitable for public occupancy. General Notes: 1. Samples were collected on a cellulose ester membrane filter with 0.8 micrometre pore size and 25 millimetre diameter. The filter was mounted inside a three piece filter cassette with two inch conductive cowl. 2. Collection and analysis of the air samples was performed by Phase Contrast Microscopy (PCM) in accordance with NIOSH method # 7400A. 3. Limit of Detection (LOD) is 7 fibres/mm 2 ; Limit of Quantitation (LOQ) is 100 fibres/mm 2 ; " < " denotes less than 4. Sampling pumps are calibrated before and after the sampling period. The flow rate used to determine the volume presented on this report is the average of the two flow measurements. 5. Samples will be retained for 90 days after receipt and will be disposed of thereafter unless otherwise notified in writing 6. f/cm 3 fibers per cubic centimeter of ambient air. Analyst: Natalya Babayeva, B.Eng. Head Office: 311 Matheson Blvd. East, Mississauga, ON, L4Z 1X8 Tel: Fax: Toll Free: OHE 4 EOH Offices in British Columbia, Alberta, Quebec, Nova Scotia, Ajax, Peterborough