OVERVIEW OF DESIGNATED SUBSTANCES SURVEYS September 26, 2019 - - PowerPoint PPT Presentation

OVERVIEW OF DESIGNATED SUBSTANCES SURVEYS

September 26, 2019 Presenter: Naz Ritchie

Regulatory Requirements

• Section 30 of the Ontario “Occupational Health

and Safety Act” (OHSA)

• Designated Substances are defined under

Ontario Regulation 490/09

• Asbestos: Ontario Regulation 278/05
• Disposal: Ontario Regulation 347

Renovation/Construction

• Section 30 (OHSA) requires owners or their

representative to prepare a Designated Substances Survey (DSS) for hazardous materials in a facility

• Need to provide this to general contractors

before signing a contract

• Notice of Project: Report designated substances

likely to be used, handled or disturbed during the project

Designated Substances

• Acrylonitrile
• Arsenic
• Asbestos
• Benzene
• Coke Oven Emissions
• Ethylene Oxide
• Isocyanates
• Lead
• Mercury
• Silica
• Vinyl Chloride

There are 11 designated substances defined by the regulations:

Uses of Designated Substances

• Acrylonitrile: used in manufacture of plastics
• Arsenic: semi-conductor, wood preservative,

poison, medicine and chicken feed

• Asbestos: mineral used in many applications
• Benzene: gasoline, drugs, detergents and

medicine

• Coke Oven Emissions: Emissions are used for

plastics, solvents, dyes, paints and insulation

Uses of Designated Substances

• Ethylene Oxide: antifreeze, pesticides and

sterilant

• Isocyanates: polyurethane foams, surface

coating and spray foam insulation

• Lead: paint, pipes, gasoline and batteries
• Mercury: thermostats and fluorescent light bulbs
• Silica: concrete blocks, food additives and drugs
• Vinyl Chloride: PVC pipes, daughter product of

PCE and TCE

Other Hazardous Materials

Not included on the list of designated substances

• PCBs: Transformer oils and fluorescent lights
• UFFI: Insulation
• Ozone Depleting Substances (CFCs, HCFCs):

HVAC units and refrigerants

• Mould

What is involved in DSS?

• Designated Substances Survey Include:

– Field Survey – Sampling and Laboratory Analysis – Reporting

• Conduct either Project-Specific DSS or a

General DSS

• Can combine a DSS with a Phase I

Environmental Site Assessment (ESA)

Field Survey

• Review history of building including age (pre or

post 1990) and major renovations

• Use of building
• Walkthrough the building
• Look for common materials that may contain

designated substances

• Collect samples

Sampling and Analysis

• Relationship with various labs
• Sampling is primarily focused on asbestos and

lead

• Visual observation of other materials including

fluorescent lights (mercury and PCBs) and silica

• Also look for evidence of mould

DSS Reporting

• Executive summary
• Scope of Investigation and Methods
• Evaluation of Results
• Information about designated substances

including locations, quantity, type and condition

• Findings and Recommendations
• Photo Log
• Figures

Asbestos Sampling

• Friable or Non-Friable
• If not being disturbed, can remain in place
• Samples collected in multiples of 3 for most

materials

• Sprayed fireproofing, drywall joint compound,

texture coat and plaster: number of samples depend on quantity present – If 1,000 to 5,000 ft2, then 5 samples, – Greater than 5,000 ft2, then 7 samples

Common Asbestos Containing Materials (ACM)

• Ceiling Tiles (Date

Stamp)

• Vinyl Floor Tiles (12 x 12
• r 9 x 9) and Sheets
• Drywall Joint Compound
• Caulking
• Mastics
• Roofing Layers (Asphalt,

Felt and Vapour Barrier)

Examples of ACM Pipe Wrap and Thermal Insulation

Examples of ACM – Sneaky

Pipe Wrap Pipe Wrap ACM Floor Tile

Vermiculite

• Mineral used for insulation and
• ther commercial products
• Vermiculite is NOT asbestos
• Vermiculite deposits were

contaminated with asbestos (Montana)

Examples of Lead Application

• Lead Paint
• Lead Pipes
• Batteries
• Ammunition
• Solders

Silica

• Concrete Floor
• Concrete Block

Walls

Abatement

• Identify the type of abatement approach:

– Type 1: Low Risk, Hand held tools – Type 2: Medium Risk: Non-Friable materials with power tools or < 1m2 of friable ACM – Type 3: High Risk, Enclosures and Air Clearance Testing

• Work with a qualified asbestos abatement

contractor

• Abatement oversight and reporting

Questions?

Thank you

For more information or any questions, please contact: Naz Ritchie General Manager Peritus Environmental Consultants Inc. 519-594-0018 naz.ritchie@peritusenv.com www.PeritusEnv.com