Integrity Management Program

In general, a high-consequence area is a location where a pipeline failure could have an impact on a large number of people or a significant environmental impact. Interstate Energy utilizes a combination of manual identification and geographic information system technologies to perform these studies.

18-inch mainline
Even before the integrity management regulations went into effect, assessments were regularly performed on the 18-inch mainline. Since installation in 1976, the following assessments have been conducted:

• Three pressure tests
• Eighteen in-line inspection tool runs to detect metal loss, deformations, cracks and other defects.

20-inch Lower Mount Bethel gas pipeline
The 20-inch Lower Mount Bethel line was installed in 2002. Since then, the following assessments have been conducted:

• One pressure test
• Two in-line assessment tool runs to detect metal loss, deformations and other defects

Current assessments are scheduled to be conducted every seven years.

The latest in-line inspection assessments on the 18-inch mainline were conducted in 2014. The results indicated no immediate threat to pipeline integrity. The latest in-line inspection assessments on the 20-inch Lower Mount Bethel line were conducted in 2014. They found no conditions that required repair or further investigation.

Federal regulations require that pipeline operators evaluate and implement preventive and mitigative measures to reduce the risk of pipeline failures. To help improve safety and reduce risks, Adelphia Gateway LLC has implemented the following measures:

• The pipelines contain several remotely operated valves, which can be used to quickly shut down and isolate pipeline segments.
• Routine pipeline digs are performed to physically inspect the pipeline to see any anomalies
• Additional training has been provided for emergency response procedures.
• All scheduled excavations along Adelphia Gateway LLC rights-of-way are closely monitored by company personnel.
• Frequent patrols are conducted to detect unauthorized excavation and other activities on rights-of-way.
• Additional pipeline markers have been installed to better indicate the presence of the pipeline.

The program includes the following steps:

Tracking and reporting performance measures:
Some performance measures are reported to the federal government. Adelphia Gateway LLC’s performance measures are available at the following website:

• Gas pipelines

Quality assurance process:
Adelphia Gateway LLC has a quality assurance process to ensure that the integrity management activities are being performed as required.

Continual evaluation process:
Periodic evaluations and audits are conducted to assess the effectiveness of the program and determine if improvements are required.

Adelphia Gateway LLC’s program is designed to ensure that changes that affect the integrity of the pipeline system are identified and effectively managed. These include physical, technical, procedural and organizational changes.

Internal communication with employees and external communication with the public are essential parts of Adelphia Gateway LLC’s integrity program. This website is part of our external communication process and provides information about our steps to maintain safety and what the public needs to know about pipelines in their communities.