1. United States
  2. Design & Construction
  3. Infrastructure
  4. Resources
  5. Locating & Marking Application Guide for the Gas Industry
Infrastructure

Locating & Marking Application Guide for the Gas Industry

View PDF version of this guide (PDF, 590 KB)
  • 3M Locating & Marking Application Guide for the gas industry.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Main or Service Stubs

• High likelihood need to connect later or due to new construction
• Pinpoint location of connection point where a locator may not provide the needed level of accuracy
• Stubs often get knocked down or covered when their end is above ground

Main or Service Repair Locations
• Higher risk point for future failures, where to look first when there’s an issue
• Easily able to identify and map
• Ease of identification using a marker and precise
• Positive location
Main to Service Connection
• Marker clearly defines the location of the facility
• If connection point and premise point can be identified, may improve ability to determine the path of the service line
• Provides a good starting point
See more details
Service Valve
• Sometimes paved over, covered with vegetation or snow pack
• Can serve as an aid with emergency response to shut off valves
Main Shutoff Valve
• Aids with emergency response to shut off valves
• Not easily locatable and needs to be located quickly
• Often covered
Main 90 degree Elbows, Tees and Crosses
• Logical point of failure (leak)
• Assists in path marking of critical assets
• Change of direction can make them broadside to the path of the utility, making it vulnerable to being hit
Offsets
• Assists in path marking of critical assets
• Point of interest indicating something has changed
• Fittings present – leak potential
• Potential higher risk that an abandoned facility may be present in the straight line
Road Crossings
• Depth of cover confirmation, location of conduit, location accuracy for future road work
• Deep dive markings on each side of road to confirm utility location after bore, find buried or sawed-off conduits
See more details
  • Locating and Marking - Main or Service Stubs

    Main or Service Stubs

    • High likelihood need to connect later or due to new construction
    • Pinpoint location of connection point where a locator may not provide the needed level of accuracy
    • Stubs often get knocked down or covered when their end is above ground

  • Main or Service Repair Locations

    • Higher risk point for future failures, where to look first when there’s an issue
    • Easily able to identify and map
    • Ease of identification using a marker and precise
    • Positive location

  • Main to Service Connection

    • Marker clearly defines the location of the facility
    • If connection point and premise point can be identified, may improve ability to determine the path of the service line
    • Provides a good starting point
    • Poor locatability due to ungrounded tracer wire
    • Sometimes with a metal meter, if changed to plastic not easily locateable
    • High risk point for excavation damage, often most vulnerable location for strikes

  • Service Valve

    • Sometimes paved over, covered with vegetation or snow pack
    • Can serve as an aid with emergency response to shut off valves

  • Main Shutoff Valve

    • Aids with emergency response to shut off valves
    • Not easily locatable and needs to be located quickly
    • Often covered

  • Main 90 degree Elbows

    • Logical point of failure (leak)
    • Assists in path marking of critical assets
    • Change of direction can make them broadside to the path of the utility, making it vulnerable to being hit

  • Offsets

    • Assists in path marking of critical assets
    • Point of interest indicating something has changed
    • Fittings present – leak potential
    • Potential higher risk that an abandoned facility may be present in the straight line

  • Road Crossings

    • Depth of cover confirmation, location of conduit, location accuracy for future road work
    • Deep dive markings on each side of road to confirm utility location after bore, find buried or sawed-off conduits
    • Identify facility in high congestion, high traffic area
    • Identify facility in area of future construction
Legal
|
Privacy
|
HIPAA Privacy
|
DMCA
|
Accessibility Statement
|
Your Privacy Choices
|
Cookie Preferences
© 3M 2024. All Rights Reserved.
Follow Us
The brands listed above are trademarks of 3M.