1. Excavation

2. Introduction
Review online course content.
Review questions.

3. Workshop Objectives
Participate in discussions, demonstrations, and hands-on activities that will enable you to:
Discuss how damage prevention programs, best practices, techniques, excavation standards, and inspection requirements used by qualified personnel.
Apply One-Call notification procedures, OSHA requirements, and best practices as needed on the job.
Explain how and why to monitor an area for settlement during and after excavation activities.
Verify system integrity during and after excavation activities.
Recognize and react to abnormal operating conditions.

4. Excavation Requirements
Best practices and required safety tasks required by OSHA and CGA (Common Ground Alliance)
Excavation Points
One-Call Center
Positive/verified locates
Activity Worksheet #1

5. Excavation Hazards Key points about excavation hazards
Locating buried facilities
Shock hazards
Cave-ins
Diverting water from excavation site
Activity Worksheet #2

6. Excavation Hazards Locating and Marking Facilities
Establishing excavation points
How to:
White line an excavation
Locate and mark buried utilities with color codes
Activity Worksheet #3
Activity Worksheet #4
Image Retrieved July 2013

7. Damage Prevention How to prevent damage during excavation by using:
Best safety practices
Monitoring excavation activities
Complete and proper documentation
System patrols
Proper and frequent inspections
Activity Worksheets #5, #6, #7

8. SOIL Soils used to backfill Testing soil Unified Soil Classification
Backfilling using appropriate tools and restoring the property
Activity Worksheet #8

9. Trench Preparation Trench width and depth requirements
Buried main location
Guidelines for service main installation
Covering a buried pipe the right way
Trench padding
Cathodic protection system
Activity worksheet #9
Image Retrieved July

10. Backfill Process External load of backfill Pipe installation
Degree of compaction
Types of backfill used
Following engineering specifications
Site restoration
Activity worksheet # 10
Image Retrieved July
Caption: “The finely ground spoil encases the pipe when backfilling. This reduces subsidence when compared to excavators.”

11. Compaction Compaction process and requirements Affecting factors
Field density tests
Sand cone
Rubber balloon
Nuclear gauge
Soil compaction
meter
Activity worksheet #11
Image Retrieved July

12. Sources Occupational Safety and Health Administration (OSHA)
Compressed Gas Association (CGA)
US Department of Transportation (FHWA)
Proctor Test (adopted by the American Association of State Highway and Transportation Officials [AASHTO]).

13. Code of Federal Regulations
§ Cover.
§ Service lines: Installation.
§ Cover over buried pipeline
§ Damage prevention program.
§ Damage prevention program.
§ Pipeline integrity management in high consequence areas.
§ Scope, application, and definitions applicable to open excavations.
§ Specific excavation requirements.
§ Requirements for protective systems.
§  General.
§   Transmission lines: Leakage surveys.
§   Distribution systems: Patrolling.
§   Distribution systems: Leakage surveys.
§   What additional preventive and mitigative measures must an operator take?
Proctor Test (adopted by the American Association of State Highway and Transportation Officials [AASHTO]).

14. Open Discussion
Questions
Comments