Program Strategy for Liquids Pipelines

Dominion’s management cultivates a culture of integrity management in order to align itself with the spirit of the regulation.

Dominion has created an Integrity Management Program (IMP) that it believes meets or exceeds the intent of the integrity management regulations. The IMP will be refined continually as it moves from its framework to a comprehensive program. Conformance to the processes required by Dominion’s IMP is thoroughly documented and communicated throughout the organization.

Dominion’s liquids pipeline integrity management program addresses all of the components required by the DOT including, but not limited, to the following components:

  • High-Consequence Areas
  • Threat Identification and Risk Assessment
  • Baseline/Continuous Assessment Plans
  • Remediation/Prevention
  • Record-Keeping Provisions
  • Performance and Quality Assurance
  • Management of Change
  • Communications

For more information, see DOT’s Integrity Management Fact Sheet for Liquids.

High-Consequence Areas (HCAs)
The integrity management regulation was designed to address areas of a pipeline that are located in high-consequence areas (HCAs).

Threat Identification and Risk Assessment
Dominion has adopted a threat-based methodology for managing liquids pipeline risk.

Baseline/Continuous Assessment Plans
Segments with the highest potential for risk are given priority.

Remediation is the action taken by Dominion to mitigate the danger of a potential integrity concern. Remediation includes pressure reduction and/or timely repair and preventive measures that halt a potential integrity problem so it does not proceed to failure.

All Dominion liquids pipelines are equipped with low-pressure alarms and are monitored 24 hours a day by operators for abnormal operating conditions. In addition, leak detection is installed on Dominion Transmission’s natural gasoline pipeline. Highly accurate flow meters are installed on the inlet and outlet of the pipeline, and leak-detection software is used to monitor the inlet/outlet flows on the pipeline for discrepancies in the flows.

Record-Keeping Provisions
The company maintains a complete history of all major integrity components within integrated databases.

Performance and Quality Assurance
The company’s Integrity Management Program is evaluated to ensure that the program effectively assesses integrity and protects high-consequence areas. A Quality Assurance Plan provides documented proof that the operator meets all requirements of its Integrity Management Plan.

Management of Change
Management of change procedures identify changes to pipeline systems and consider the impact of those changes on the integrity of the pipeline.

Dominion has developed and implemented a communications plan to inform company personnel, jurisdictional authorities and the public about its integrity management efforts and the results of its integrity management activities.

NYSE : (July 11, 2014) D 69.64 -0.34