PG&E crews responded to reports of an explosion and gas leak in the 3900 block of Mission Street on Monday. (Daniel Kim/Special to S.F. Examiner)

Some residents still without gas service after Bernal Heights explosion, leak

More than 150 customers were still without gas service Tuesday following a gas leak and explosion in San Francisco’s Bernal Heights neighborhood Monday morning, according to PG&E.

Of the 470 customers who lost gas service in the incident, 305 have had service restored, PG&E spokesperson Andrea Menniti said.

The remaining 165 include many on the east side of the 3900 block of Mission Street, where the leak was reported, and others in the area who were not home when PG&E crews went around to try to restart gas service, Menniti said.

The gas leak was reported shortly before 10 a.m. Monday when firefighters were called to the 3900 block of Mission Street near St. Mary’s Avenue to investigate a strong gas odor in the area, according to fire officials.

At 10:14 a.m., an explosion occurred in the lower floors of 3987 Mission St., a three-story residential building, causing moderate damage to the home and blowing out its front windows.

No one was inside the building and no injuries were reported.

Firefighters evacuated 19 addresses on Mission Street, College Terrace and Bosworth Street for several hours.

Fire officials on Monday said it appeared that the leak may have been outside on the street rather than in the building where the explosion occurred.

However, Menniti said the location and cause of the leak remain under investigation.

PG&E has reported the incident to the California Public Utilities Commission and has hired a third-party engineering firm, Exponent, to assist in the investigation, Menniti said.

The utility also has a leak detection vehicle monitoring the area to make sure it is safe, she said.

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