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
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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
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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
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Brisbane City Council MeetingJune 6, 2011
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Natural Gas Transmission Pipelines
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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
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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
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Brisbane City Council MeetingJune 6, 2011
77Lines 101 and 132
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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
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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.
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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
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Brisbane City Council MeetingJune 6, 2011
1111Work area:
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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.
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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