Injury Illness Prevention Plan - Flipbook - Page 237
Health and Safety Program Manual
Teamwrkx
Construction, Inc.
Issue Date: 10/16/23
Revision Date: 10/16/23
Lead Exposure
Reference: B-4
Wherever the engineering and work practice controls which can be instituted are not sufficient to reduce worker
exposure to or below the permissible exposure limit, The Company shall still use them to reduce exposures to
the lowest feasible level and shall supplement them using respiratory protection.
Where any worker is exposed to lead above the permissible exposure limit, but for 30 days or less per year, The
Company shall implement engineering controls to reduce exposures to 200 ug/m(3), but thereafter may
implement any combination of engineering, work practice (including administrative controls), and respiratory
controls to reduce and maintain worker exposure to lead to or below 50 ug/m(3).
EXHAUST VENTILATION
The Company shall equip power tools used to remove lead-based paint with dust collection shrouds or other
attachments so that paint is exhausted through a high-efficiency particulate air (HEPA) vacuum system. For
operations such as welding, cutting/burning, or heating, use local exhaust ventilation. Use HEPA vacuums during
cleanup operations.
For abrasive blasting operations, The Company shall build a containment structure that is designed to optimize
the flow of clean ventilation air past the workers’ breathing zones. This will help reduce the exposure to airborne
lead and increase visibility.
Maintain the affected area under negative pressure to reduce the chances that lead dust will contaminate areas
outside the enclosure. Equip the containment structure with an adequately sized dust collector to control
emissions of particulate matter into the environment.
When ventilation is used to control exposure, measurements which demonstrate the effectiveness of the
system in controlling exposure, such as capture velocity, duct velocity, or static pressure shall be made at least
every 3 months. Measurements of the system's effectiveness in controlling exposure shall be made within 5
days of any change in production, process, or control which might result in a change in worker exposure to lead.
Recirculation of Air
If air from exhaust ventilation is recirculated into the workplace, the system must include:
•
•
A high efficiency filter with reliable back-up filter
Controls to monitor the concentration of lead in the return air and to bypass the recirculation
system automatically if it fails are installed, operating, and maintained
ENCAPSULATION OF MATERIALS CONTAINING LEAD
To reduce the lead inhalation or ingestion hazard posed by lead-based paint is to encapsulate it with a material
that bonds to the surface, such as acrylic or epoxy coating or flexible wallcoverings. Another option is to enclose
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