1. WORKER TRAINING FOR SELECT CLEAN UP OF ASBESTOS-CONTAMINATED DRYWALL WASTE
© 2011
EHS Partnerships Ltd.

2. INTRODUCTION This training program was developed to:
Provide attendees with information about the hazards of Asbestos Containing Materials
Familiarize attendees with applicable sections of the British Columbia Occupational Health and Safety Regulation.
Provide attendees with enough information about the hazards of the ACMs to be able to proactively identify situations where there is a risk of harmful exposure and to protect themselves and others from the risk of harmful exposure
Familiarize attendees with applicable sections of the British Columbia Occupational Health and Safety Regulation.

3. COURSE OBJECTIVES At the end of the course, participants will:
Understand hazards of ACM’s
Identify possible harmful exposure
Understand Asbestos Exposure Control Plan
Be able to follow Moderate Risk Abatement techniques
At the end of this course, participants will:
Understand the hazards of the Asbestos-Containing Materials (ACMs) to be able to proactively identify situations where there is a risk of harmful exposure and to protect themselves and others from the risk of harmful exposure
Understand an asbestos exposure control plan and safe work procedure including the precautions that must be taken when cleaning up and disposing of asbestos-contaminated drywall waste.
Be able to follow Moderate Risk Abatement techniques and procedures detailed in the above-noted asbestos exposure control plan and safe work procedure.

4. Legislation
OH&S LEGISLATION

5. OH&S Legislation Worker’s Compensation Act
Workplace health and safety is regulated in British Columbia by WorkSafeBC under the Workers’ Compensation Act (effective April 15, 1998), as amended by the Workers’ Compensation (Occupational Health and Safety) Amendment Act (effective October 1, 1999).
The Act defines the general duties and obligations of the employer, employees and others at the work site.

6. BC Occupational Health and Safety Regulation
Legislation
BC Occupational Health and Safety Regulation
ACMs are regulated specifically under Part 6 (sections 6.1 to 6.32) of British Columbia Occupational Health and Safety Regulation (BC Reg.) 296/97, as amended from time to time.

7. Maximum Allowable Asbestos Exposure Levels
The TWA for all forms of asbestos for an 8-hour work shift is:
0.1 f/cc (fibres per cubic centimeter)
For extended work shifts the TWA must be adjusted consistent with the requirements of Part 5.50 of the OH&S Regulations.

8. Provincial Environmental Legislation
In British Columbia, environmental hazards pertaining to waste generally fall under the jurisdiction of The British Columbia Ministry of Environment (MoE), pursuant to The Environmental Management Act.
The Hazardous Waste Regulation (HWR), BC Reg. 63/88, as amended by BC Reg. 319/2004, provides requirements for handling, storage, transportation, treatment, recycling and disposal of hazardous goods.

9. Transportation Regulations
The transportation of hazardous wastes is governed under the Transportation of Dangerous Goods (TDG) Act and Regulations.

10. Guidelines
WorkSafeBC has published “Safe Handling of Asbestos, A Manual of Standard Practices”, 2006 and “G Hazardous materials – Asbestos”, dated The purpose of these documents are to provide information on asbestos, asbestos hazards, safe abatement of ACMs, requirements for worker protection, safe work procedures and what constitutes a compliant asbestos inspection.

11. Jurisdictional Controls
According to the Ten Steps to Compliance as outlined in WorkSafeBC guideline , an ACM survey must be completed prior to renovating and/or demolishing any building or structure that was built prior to 1990.

12. ASBESTOS AWARENESS

13. Asbestos is a group of naturally occurring mineral fibres.
Chrysotile: White
3 common types include:
Amosite: Brown
Crocidolite: Blue

14. Asbestos – Mined in Open Pit Mines

15. USES OF ASBESTOS

16. Useful Properties of Asbestos
Resists burning even at high temperatures
Has great tensile strength
Acoustic dampener
Resists corrosion by chemicals
Resists biological growth
Insulates against the conduction of electricity
Is very flexible

17. Asbestos-Containing Materials (ACM) – Building Exteriors
Cement paneling, soffits and roof panels
Roofing felts and mastics
Stucco
Brick and block mortar
Loose fill insulation in exterior wall cavities

18. ACM’s - Walls Drywall joint compound Plaster Texture coating
Transite wall board

19. ACM’S - Flooring Floor tile Sheet vinyl flooring Floor leveling
compounds

20. ACM’s - Ceilings T-bar ceiling tile Cement ceiling tile
Acoustic finishes
Stippled finishes
Plaster or drywall joint compound

21. Services Areas & Mechanical Systems
Boiler room insulation – boilers, pipes, ducts, incinerators, floors, walls, ceilings
Fan room insulation – insulation on pipes, chillers, floors, ceilings, walls
Machine room insulation – insulations on pipes, ducts, floors, ceilings, walls
Crawl space insulation - insulation on pipes and ducts
Wall cavity insulation
Boiler room insulation – boilers, pipes, ducts, incinerators, floors, walls, ceilings
Fan room insulation – insulation on pipes, chillers, floors, ceilings, walls
Machine room insulation – insulations on pipes, ducts, floors, ceilings, walls
Crawl space insulation - insulation on pipes and ducts
Wall cavity insulation

22. Miscellaneous Materials
Incandescent light fixture backings
Wire insulation
Fume hoods
Laboratory counter-tops
Fire blankets
Brake pads
Fire-stopping
Theatre curtains

23. HEALTH AND EXPOSURE RISKS

24. Health Risks
Asbestos disease is a result of deep lung inhalation of asbestos fibres.
The risk for workers is associated with inhaling airborne fibres.
If the asbestos is not disturbed and does not become airborne, the exposure potential is minimal.
Materials that have low friability, are in good condition, in an inaccessible location, and protected from damage are low hazard.
Where damage or disturbance cannot be controlled, management of the exposure risk is very difficult.

25. Hazardous Fibres
The hazard associated with the fibres is due to their size and shape.
Long, fine fibres are most hazardous and can still be inhaled into the deep lung.
A fibre is most hazardous if its length is greater than 5 microns and the width is less than 60% of its length.
In contrast, fibreglass fibres tend to be too large to reach the deep lung and are not as significant an exposure hazard.

26. Main Diseases
There are three main diseases caused by inhalation of asbestos fibres:
Asbestosis
Lung cancer
Mesothelioma

27. View WorkSafeBC Video

28. PERSONAL PROTECTIVE EQUIPMENT

29. Respirators Asbestos fibres are hazardous when they are inhaled.
Therefore, respirators are the most important pieces of equipment for anyone handling asbestos.

30. Other PPE
In addition to respiratory protection, other PPE may be required, including:
disposable coveralls (hooded with elasticized cuffs at wrists and ankles)
work gloves
safety footwear (steel toed, seamless, laceless rubber boots)
hardhat
hearing protection
safety glasses

31. Asbestos Control Methods/Options
Removal
Encapsulation
Enclosure
Survey & Management Plan

32. Exposure Control Program & Safe Work Procedure for Cleaning Up Asbestos-Contaminated Drywall

33. Development of the Exposure Control Program and Safe Work Procedure
Through the preparation of this training program, EHS Partnerships Ltd. of Burnaby, BC conducted a qualified substance-specific risk assessment. The substance-specific risk assessment was conducted to evaluate worker exposure and environmental risks associated with clean up of asbestos-contaminated drywall waste in volumes less than or equal to one (1) cubic meter.

34. Development of the Exposure Control Program and Safe Work Procedure
Exposure Control Program and Safe Work Procedure was developed
Copy of both documents are provided as an appendix to your training manual.
Exposure Control Program and Safe Work Procedure was developed to address the risks identified through the assessment.
A copy of the Exposure Control Program and written Safe Work Procedure is provided as an appendix to your training manual.

35. Moderate Risk Safe Work Procedure
The remainder of this course will focus on the safe work procedures that are detailed in the Exposure Control Program and Safe Work Procedure documents.

36. General Abatement Practices
No eating, drinking, or smoking in the asbestos removal area.
Workers must fully decontaminate before performing any of these activities, or using the washroom.
PPE is to be worn at all times inside the designated cleanup area.

37. Personal Protective Equipment Required
Half or full face respirator with HEPA/P-100 Cartridges
Tyvec coveralls
High visibility vest
Steel toe rubber boots
Leather or equivalent gloves
Hard hat
Hearing protection
Eye protection
NIOSH approved Half-Face or Full-Face Respirator with HEPA, or P-100 cartridges
Disposable Tyvek (or equivalent) coveralls (hooded, elasticized wrists and ankles).
High visibility vest.
CSA (or equivalent) steel toe/steel shank rubber footwear.
Leather (or equivalent) gloves (to be disposed of as asbestos waste at the end of project).

38. Required Tools & Equipment
Two Wash Buckets
Hand Soap
First Aid Kit
Duct Tape
Asbestos Warning Tape
Asbestos Waste Bags
Disposable Hand Towels
6 Mil Polyethylene Sheeting
Minimum of 4 Asbestos Hazard Signs
Spray Canister Capable of Misting
Shovel/Hand Spade
5 micron filter sock

39. Personal Decontamination Facility
A decontamination area is to be used, limiting entry and egress to and from the work area
Wash pails within a “clean area” (no more than 2 workers per set of 2 wash pails) will be used by all personnel and equipment entering and exiting the work area

40. Decontamination Procedures
Damp wipe disposable coveralls to remove visible debris, within the work area.
Remove coveralls and place in a 6 mil labeled polyethylene bag and dispose of as asbestos waste. DO NOT REMOVE RESPIRATOR AT THIS TIME.
Enter designated “personal decontamination area”.

41. Decontamination Procedures
Thoroughly clean the outside of the respirator with water.
Remove the respirator.
Thoroughly wash hands and face.
Wash and rinse the inside of the respirator.
Exit the “personal decontamination area”.

42. Decontamination Procedures
Respirator filters will be taped over while respirator is not in use to prevent possible release of entrapped asbestos fibres or shall be disposed of as asbestos waste.
Any equipment used inside the asbestos clean-up area must be thoroughly cleaned (decontaminated) by wet wiping prior to being removed from the asbestos clean-up area.

43. Work Procedures
Don appropriate PPE prior to entering work area and at all times inside the work area.
Clean up the horizontal surfaces surrounding the waste deposit by shovel and/or by hand.
Continuously mist water onto the waste pile.
Clean up dust and waste (wetted if possible) by shovel or hand.
Dry sweeping or compressed air must not be used to clean up waste materials.

44. Work Procedures
Following completion of removal, the work area will be thoroughly inspected to ensure all asbestos-containing material and dust/debris has been fully removed.
Immediately upon finishing the work, complete the following tasks:
Wet drop sheets;
Fold them to contain any remaining dust;
Bag or place them in a sealable container; and,
Dispose of them as asbestos waste.

45. Work Procedures
Before leaving the work area, complete the following tasks:
Clean protective equipment wet wiping before taking them outside of the asbestos clean-up area; and, 
Place protective clothing that was worn in the asbestos clean-up area in a sealable container and dispose of as asbestos waste.

46. Solid Waste
All waste will be continuously double-bagged in asbestos waste bags and stored on-site for appropriate disposal.
Asbestos waste must be placed in sealable containers which are labeled as “asbestos-containing”
Clean external surfaces of the sealed containers.
Remove containers from the work area.

47. Liquid Waste
Wash water from the personal and waste decontamination process must be passed through a 5 micron filter sock prior to discarding the water to sewer drain.
Used filter socks must be kept damp and should be disposed of as asbestos waste immediately after use.

48. Step 1: Set Up Work Area Barriers and Personal Decontamination area
Traffic control and work area

49. Step 2: Don PPE

50. Step 3a: Clean up Drywall: Wet Waste

51. Step 3b: Clean up Drywall: Bag Waste

52. Step 3c: Clean up drywall: Final Cleaning

53. Step 3d: Clean up Drywall: Create a Goose Neck Seal on the Waste Bags

54. Steps 4 and 5: Clean and decontaminate tools and PPE
Video

55. Step 6: Disposal of asbestos-containing material
Transport as hazardous waste
Follow local, provincial and federal regulations
Take to temporary storage or designated disposal facility

56. COMPLETING A FIELD-LEVEL RISK ASSESSMENT FOR ACMS

57. Risk Assessment
Historically, plaster applications, including drywall joint compounds, were manufactured to contain between 1-10% asbestos.
Unpainted plaster compounds are somewhat friable.
Painted plaster compounds are non-friable.

58. Risk Assessment
Based on the above-noted information, and on information presented in WorkSafeBC publication “Safe Handling of Asbestos, A Manual of Standard Practices”, a moderate risk of exposure to harmful levels of asbestos exists for persons cleaning up suspect asbestos-contaminated drywall waste.

59. FIELD-LEVEL RISK ASSESSMENT EXERCISE

60. Site Conditions

61. Site Conditions (continued)
Upon closer visual examination, we can see that the drywall waste has suspect asbestos-containing joint compound and textured plaster applied to various pieces of the waste.

62. Exercise: Divide into groups if appropriate.
Secure the work area.
Set up the two stage decontamination area.
Demonstrate donning of PPE and work area entry procedures.
Demonstrate waste (drywall) cleanup procedures.
Complete final cleaning.
Demonstrate waste bagging procedures.
Demonstrate waste bag decontamination procedures.
Demonstrate personnel decontamination and work area egress procedures.
Dismantle the work area.

63. Questions?