The Fourth of July in South San Francisco ended with a serious buzzkill for several would-be pyrotechnicians after police seized more than 400 pounds of illegal fireworks from the parking lot at Alta Loma Park. Officers recovered the massive cache in a single operation, making multiple arrests and issuing citations. Despite the scale of the bust, officials said there were no injuries. Across the rest of the city, the department was kept busy with dozens of fireworks-related calls throughout the night.
How the seizure unfolded
According to KRON4, the South San Francisco Police Department logged about 90 fireworks-related calls over the holiday and ultimately seized more than 400 pounds of pyrotechnics from the Alta Loma Park parking lot. Officers used drones to help track down people setting off illegal fireworks, and multiple individuals ended the night either arrested or cited.
City rules and recent enforcement
Per the City of South San Francisco, all fireworks, including those labeled safe and sane, are banned within city limits. Officials have been urging residents to stick to sanctioned, professional shows instead, pushing out safety reminders ahead of the holiday to discourage backyard displays and cut the risk of fires.
This July 4 operation is not a one-off. In February 2025, the department uncovered more than 5,000 pounds of fireworks stored inside a unit on Oyster Point Boulevard, according to a police press release. That earlier discovery was big enough to bring in both the South San Francisco Fire Department and the San Mateo County Sheriff's bomb squad to safely collect and store the stash.
Peninsula buybacks and a regional crackdown
Across the Peninsula, county and local agencies have been pairing enforcement with carrot-style incentives like fireworks buyback events ahead of July 4. Previous buybacks have pulled in hundreds of pounds of illegal fireworks, according to San Mateo County. Officials say that a mix of buybacks, stepped-up patrols, and constant public messaging is meant to tamp down the loud, risky blasts that flood emergency lines every summer.
How residents can help
Police are asking residents to call 911 for any active or clearly dangerous fireworks incidents. For tips about sales, storage or known caches of fireworks, people are encouraged to use the department's non-emergency line or anonymous tip channels. Contact details, including non-emergency numbers and an anonymous tips email, are listed in a prior press release available from the South San Francisco Police Department.
Legal consequences
Possessing or setting off fireworks in South San Francisco is prohibited and can result in citations or arrest. Multiple people were cited or taken into custody during the holiday enforcement, KRON4 reported. With no injuries reported from this latest seizure, officials say their focus remains on keeping parks and neighborhoods safe through continued patrols and ongoing community outreach.
