1 Natural Gas Transmission Pipelines Brisbane City Council Meeting June 6, 2011.
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Transcript of 1 Natural Gas Transmission Pipelines Brisbane City Council Meeting June 6, 2011.
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Natural Gas Transmission Pipelines
Brisbane City Council Meeting
June 6, 2011
Brisbane City Council MeetingJune 6, 2011
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Natural Gas Transmission Pipelines PG&E provides 4.3 million customer accounts
with natural gas service
PG&E’s top priority is safety
Comprehensive pipeline inspection and monitoring programs
- Monitor pipelines on a 24-hour basis
- Conduct regular pipeline assessments
- Any issues identified as a threat to public safety are immediately addressed
Brisbane City Council MeetingJune 6, 2011
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Enhancing the Safety of the System
Reduction in Gas PressureAccelerated Leak SurveyRoutine Pipeline PatrolsCathodic Protection SurveysIntegrity Assessments
Brisbane City Council MeetingJune 6, 2011
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Natural Gas Transmission Pipelines
Brisbane City Council MeetingJune 6, 2011
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Natural Gas Transmission Pipelines PG&E uses data it collects during routine
surveys to help plan and prioritize future work
Evaluation takes into consideration the following criteria:
- Potential for third party damage
- Potential for corrosion
- Potential for ground movement
- Physical design and characteristics
Brisbane City Council MeetingJune 6, 2011
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Natural Gas Transmission Pipelines PG&E determines which segments warrant
further evaluation, monitoring or future action- Top 100 list
- Document used to inform future work plans
- As conditions change and work is completed year to year, PG&E reevaluates the segments included on the list
- No Brisbane segments appear on the Top 100 list
- Pipelines in Brisbane- Line 101 runs along Bayshore Boulevard
- Line 132 runs through San Bruno Mountain State Park, crosses West Hill Place and north to Guadalupe Canyon Parkway
Brisbane City Council MeetingJune 6, 2011
77Lines 101 and 132
Brisbane City Council MeetingJune 6, 2011
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Natural Gas Transmission Pipelines
Pipeline 2020 Program Modernize Critical Pipeline Infrastructure
Expand the Use of Automatic and Remotely Operated Shut-Off Valves
Spur Development of Next-Generation Inspection Technologies
Develop Industry-Leading Best Practices
Enhance Public Safety Partnerships
Brisbane City Council MeetingJune 6, 2011
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What is hydrostatic testing?• PG&E will be performing a hydrostatic pressure test
on a segment of natural gas pipeline.
• This involves pressurizing a section of pipe with water to a much higher level than the pipe will ever operate at with natural gas.
• This verifies the capability of a pipeline to safely operate and can also reveal weaknesses that could lead to defects and leaks.
Brisbane City Council MeetingJune 6, 2011
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Customer outreach efforts:PG&E has a comprehensive plan for customer and community outreach regarding our tests and field work:• Letters sent to all residents and businesses near the area
where testing will take place, with the following information:
• Project fact sheets will be included with the letters that will describe the work, what customers can expect, and when the work will be completed
• Open Houses where customers can have their questions answered by PG&E representatives and subject matter experts
• Door hangers placed on residences nearest to construction activity to remind them of work just prior to it taking place
• Recorded reminder messages delivered by telephone
• Post-test letter informing residents and businesses of the test results
Brisbane City Council MeetingJune 6, 2011
1111Work area:
Brisbane City Council MeetingJune 6, 2011
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Where to go for more information:• Customer Care gas specialist representatives are
available to answer questions about natural gas pipelines or the work being done in the area at 1-888-743-7431, between 7 a.m. and 6 p.m., Monday through Friday.
• Online information about the project, PG&E’s Natural Gas Transmission System and our Pipeline Safety Programs at: www.pge.com/gassystem.
Brisbane City Council MeetingJune 6, 2011
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ResourcesWebsite: www.pge.com
Pipeline Information Line: 1-888-743-7431
Customer Call Center: 1-800-743-5000
Contractors “Call Before You Dig”: 811