PG&E officials face questioning

San Francisco officials and a Hayward-area family pushed fresh questions at Pacific Gas and Electric this week in two separate cases tied to major utility failures in late 2025. On Thursday, members of the San Francisco Board of Supervisors' Public Safety and Neighborhood Services Committee pressed PG&E over the Dec. 20 fire at the Mission Substation that led to a citywide blackout affecting roughly one-third of San Francisco. (nbcbayarea.com) A day earlier, the Duenas family filed suit in Alameda Superior Court over a Dec. 11 gas explosion in Ashland that destroyed their home and seriously injured residents. Together, the proceedings put PG&E's maintenance, emergency response and contractor oversight back under scrutiny. ### What did San Francisco supervisors want PG&E to explain? (cpmlegal.com) The May 14 hearing focused on how a substation fire at Mission and Eighth streets escalated into a prolonged outage across San Francisco neighborhoods including the Richmond, Sunset, Presidio, Civic Center and South of Market, according to the committee agenda. Supervisors sought details on the causes of the outage, communication failures, emergency-response gaps, economic harm to small businesses and the claims process for affected residents and businesses. NBC Bay Area reported that PG&E officials faced questions about apparent lapses before the blackout, including maintenance and oversight issues raised after an independent review was released last week. Earlier public hearings on the outage had already drawn pointed questions from supervisors over restoration delays and uneven impacts across neighborhoods. (nbcbayarea.com) ### What does the independent blackout report say caused the Dec. 20 fire? An independent report released on May 8 found that the December outage was likely caused by humidity buildup and related conditions inside the Mission Substation. KQED reported that the site was susceptible to rain and had a "compromised" ventilation system that contributed to damage to key infrastructure. (sf.gov) ABC7 and NBC Bay Area said the review identified condensation and dust buildup on equipment that led to short-circuiting. PG&E said the analysis, prepared by third-party firm Exponent, identified a combination of factors rather than a single failure. PG&E said it has installed humidity-mitigation measures at the Mission Substation and added weatherproofing equipment to all 16 indoor substations in San Francisco. (nbcbayarea.com) The company also said it was taking additional inspections and other corrective steps following the report. ### How large was the blackout and why did the response draw attention? The Dec. 20 outage left about 130,000 customers without power, according to NBC Bay Area and other local outlets. (kqed.org) Some customers remained without service for days, and the disruptions hit transit, traffic signals and businesses during the holiday weekend. San Francisco emergency officials and local media reported that PG&E did not call the San Francisco Fire Department until more than an hour after the first signs of trouble at the Mission Substation. (nbcbayarea.com) NBC Bay Area also reported that the same substation had been the site of earlier fires, including a 2003 incident that led to CPUC sanctions and required spending on improvements. (aol.com) ### What is in the Hayward-area explosion lawsuit? The Duenas family filed suit on May 13 against PG&E, Alameda County, Redgwick Construction, Maya Asphalt Milling and other defendants over the Dec. 11 explosion at 867 East Lewelling Boulevard in the unincorporated Ashland community near Hayward. The complaint alleges negligence, public nuisance and trespass, among other claims, according to NBC Bay Area, ABC7 and the family's law firm, Cotchett, Pitre & McCarthy. (nbcbayarea.com) The NTSB said the explosion and fire destroyed a single-family residence as PG&E was responding to a leak in its pipeline system at the site. Three residents of the home were seriously injured and taken to a nearby hospital, and six people were hurt overall, according to local coverage of the blast and the federal investigation. (nbcbayarea.com) Courthouse News reported that the family alleges PG&E and Alameda County failed to adequately maintain or manage the gas lines, while the complaint accuses contractors of unsafe excavation practices. East Bay Times separately reported that the lawsuit claims PG&E sought to mislead federal investigators about whether residents had been warned before the blast, an allegation that reflects the plaintiffs' claims and not a finding by investigators. (nbcbayarea.com) ### What comes next in both cases? The San Francisco committee hearing is part of an ongoing oversight process, and the Board of Supervisors calendar lists the Public Safety and Neighborhood Services Committee's agendas and minutes through the city's meeting pages. The outage hearing file is listed as File No. 260035. (ntsb.gov) The Hayward explosion case is now in Alameda Superior Court, and the NTSB's accident page shows the federal investigation remains open into the Dec. 11, 2025 blast at 867 East Lewelling Boulevard. PG&E, Alameda County and the named contractors can be expected to respond in court as the case proceeds. (cpmlegal.com) (sf.gov) (courthousenews.com)