March 24, 2017

FENCE-LINE DATA NOW AVAILABLE ONLINE SoCalGas® has launched a new, interactive online tool that allows the public to view data from the network of methane monitors that have been installed at Aliso Canyon. Eight pairs of monitors have been installed along the facility’s border with the Porter Ranch community to record methane levels around-the-clock.

“We are excited to launch this tool and make data from our fence-line monitors available to members of the community,” said Lisa Alexander, SoCalGas vice president for customer solutions and communications. “This new tool will offer the community near real-time information about methane levels at the facility and will supplement a single methane monitoring station operated by the community. This initial launch included input from members of the community, and we will continue to seek the public’s feedback as we make enhancements to the web page.”

The interactive online tool displays a map indicating the location of the fence-line monitors. By clicking on any of those icons, users can view a chart with data showing methane levels recorded in five-minute increments over the past 24 hours. Methane levels are measured in parts per million (ppm). The online tool also shows weather data from three different weather stations in the area. Understanding current weather conditions, such as wind speed and humidity, provides context that helps to better understand the methane readings.

We invite you to visit our website to see this data for yourself. Visit socalgas.com/alisoupdates and click on “Methane Monitoring” located at the top-right of the page to access the new, interactive online tool.

“This is a step in the right direction. This system provides the community with transparent data and a tool for monitoring the air in Porter Ranch.”

— Nancy Lulejian Starczyk Porter Ranch resident & member of the

Aliso CanyonCommunity Advisory Council

COMMUNITY AWARENESS

ALISO CANYON STORAGE FACILITY PROGRESS REPORT

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socalgas.com 1-800-427-2200

INDUSTRY-LEADING SAFETY ENHANCEMENTSVisit socalgas.com/alisoupdates to learn more about the extensive safety and technology enhancements SoCalGas has introduced over the last year. The diagram below illustrates all of the safety enhancements that are currently being implemented at Aliso Canyon.

COMMUNITY ADVISORY COUNCILSIn addition to the Aliso Canyon Community Advisory Council (CAC), SoCalGas has partnered with local leaders and organizations to form similar CACs in each of the communities that surround SoCalGas’ storage facilities: Honor Rancho, La Goleta, and Playa del Rey. The CACs consists of community leaders from local churches, organizations, businesses, and schools and meet monthly to discuss SoCalGas’ storage operations and to collect feedback regarding the local community’s needs and concerns. Some of the organizations participating in each of the CACs include:

HONOR RANCHOCalifornia State Assembly, 38th District

California State Senate, 21st District

City of Santa Clarita Public Information Office

County of Los Angeles Board of Supervisors, 5th District

Cornerstone Homeowners Assoc.

Hart Union High School District

Los Angeles County Fire Department

Oakmont Senior Living Facility

Saugus Elementary School District

Santa Clarita Council of Realtors

Santa Clarita Valley Chamber of Commerce

Santa Clarita Valley Economic Development Corporation

Southern California Edison

United States Congress, 25th District

Valencia High School

LA GOLETACity of Goleta

County of Santa Barbara

Goleta Sanitary District

Goleta Slough Committee

Goleta Valley Chamber

Rancho Goleta Mobile Home Park Homeowners Assoc.

Santa Barbara Airport

Santa Barbara County Fire Department

Santa Barbara County Office of Emergency Management

University of California Santa Barbara

PLAYA DEL REYFriends of Ballona Wetlands

Los Angeles Airport Coastal Chamber

Loyola Marymount University, Government Affairs

The Bay Foundation

Westchester / Playa del Rey Neighborhood Council

View full-size diagram at socalgas.com/alisoupdates.

AIR QUALITY NOTIFICATIONSMembers of the community can now sign up to receive air quality notifications, via phone call, text message, and/or email, in the event of a release of natural gas at Aliso

Canyon. Visit socalgas.com/airqualitynotifications or call 1-800-427-2200 to sign up.