1. 1 Natural Gas Transmission Pipelines Brisbane City Council Meeting June 6, 2011

2. Brisbane City Council Meeting June 6, 2011 2 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

3. Brisbane City Council Meeting June 6, 2011 3 Enhancing the Safety of the System Reduction in Gas Pressure Accelerated Leak Survey Routine Pipeline Patrols Cathodic Protection Surveys Integrity Assessments

4. Brisbane City Council Meeting June 6, 2011 4 Natural Gas Transmission Pipelines

5. Brisbane City Council Meeting June 6, 2011 5 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

6. Brisbane City Council Meeting June 6, 2011 6 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

7. Brisbane City Council Meeting June 6, 2011 7 7 Lines 101 and 132

8. Brisbane City Council Meeting June 6, 2011 8 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

9. Brisbane City Council Meeting June 6, 2011 9 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.

10. Brisbane City Council Meeting June 6, 2011 10 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

11. Brisbane City Council Meeting June 6, 2011 11 Work area:

12. Brisbane City Council Meeting June 6, 2011 12 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.www.pge.com/gassystem

13. Brisbane City Council Meeting June 6, 2011 13 Resources Website: www.pge.comwww.pge.com Pipeline Information Line: 1-888-743-7431 Customer Call Center: 1-800-743-5000 Contractors “Call Before You Dig”: 811