As we transport and deliver natural gas to our customers, our goal is to identify and resolve potential problems before they occur. We also have nearly 5,000 employees who are trained and ready to respond in the event of a problem.
- We conduct regular maintenance.Our crews routinely perform pipeline safety tasks, including patrolling, testing, repairing and replacing pipelines.
- We follow safety regulations.We meet or exceed all state and federal pipeline safety regulations for pipeline operations and maintenance, including ongoing technical training and testing for employees.
- We add odorant.In addition to monitoring the gas for quality, we also add a distinctive odor to help detect leaks.
- We conduct compliance audits.State and federal regulators regularly audit our program to unsure that we are in compliance.
- We're state-of-the-art. We apply best-in-class knowledge in the operation and maintenance of our natural gas pipeline facilities.
- We inspect.We use the latest safety inspection tools to determine pipe condition and help ensure that the pipelines are being maintained safely. To perform these important inspections, the area around our pipelines must be clear of shrubs, trees, fences and other structures.
- We're making ongoing pipeline improvements. We replace older pipelines when needed with modern pipeline materials, expand our system to bring in new gas supplies, and help to minimize system damage that could be caused by earthquakes.
- We conduct our Integrity Management Program.We use the latest pipeline safety inspection tools in designated High Consequence Areas (i.e., highly populated areas) to check pipe condition and ensure these pipelines are maintained safely.
Do Your Part in Gas Safety and Prevention
Locate our gas transmission and high pressure distribution pipelines.
Learn how natural gas pipelines will be investigated for areas that may intersect small segments of sewer pipeline and see the map.
Locate other operators of major gas pipelines in your area and view maps with the general locations of these pipelines.
About Our Interactive Map of Major SDG&E Pipelines
San Diego Gas & Electric is providing this map as a courtesy and for general information purposes only. It does not represent that the information contained herein is accurate for any particular purpose, and therefore disclaims all warranties, expressed or implied, including the warranty of fitness for a particular purpose. Independent verification from experts should be obtained prior to any specific use. Recipient accepts full responsibility for any consequences associated with use of this information.
Pipelines may be located anywhere, including under streets and sidewalks, and on private property. This map shows the general locations of San Diego Gas & Electric owned or operated Gas Transmission Pipelines and High Pressure (greater than 60 pounds per square inch) Gas Distribution Mains. Lower pressure distribution mains and smaller service lines connected to the gas meters at homes and businesses are not shown.
About the Distinctive Odor of Natural Gas
Do not rely on your sense of smell alone.
Although we add a distinctive odor to natural gas to aid in the detection of leaks, you should not rely on your sense of smell alone to determine if you have a gas leak. Here's why:
- Diminished sense of smell. Some people may not be able to smell the odor because they have a diminished sense of smell.
- Masking. Sometimes the odor is masked by other odors in the area.
- Fading or loss of odorant. Certain conditions, such as odor fade (loss of odorant) may cause the odor to diminish so that it is not detectible.
About Odor Fade (loss of odorant)
Odor fade or loss of odor can cause the odorant we put in the gas to diminish so that you can't smell it. Do not rely on your sense of smell only to detect the presence of natural gas.
Causes of Odor Fade
- Odor fade is caused by physical and chemical processes. Other factors that may cause odor fade include:
- Construction and configuration of the customer’s gas facilities.
- Presence of rust, moisture, liquids or other substances in the pipe.
- Gas composition, pressure and flow.
- Intermittent, little or no gas flow over an extended period that normally lasts until gas flow increases or becomes more frequent.
- New pipe installations.
- Steel and larger pipes.
If you have additional questions or concerns regarding odor fade, call SDG&E at 1-800-411-7343 or contact a licensed, qualified professional. You can also refer to the Odor Fade Safety Bulletin (pdf).