Site Control Program - Site Map

Employers should prepare a site map before entering the site. A detailed site map will aid with the following:

• Planning activities
• Assigning personnel to specific tasks
• Identifying access routes, evacuation routes, and problem areas
• Identifying areas of the site that require use of personal protective equipment
• Providing field teams with more details for their daily safety and health briefings

A site map should show all of the following when applicable to the site:

• Topographic features
• Prevailing wind direction
• Drainage
• Location of buildings, containers, impoundments, pits, ponds, and tanks

Employers should also update the site map throughout the time spent working on the site. Map updates should include the following:

• Accidents
• Changes in site activities
• Emergencies
• Hazards not previously identified
• New materials introduced on site
• Vandalism
• Weather conditions

OSHA notes that overlays can be used to help portray information but should not clutter the map.

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