Hazardous material from San Francisco house explosion shuts down Daly City, Colma BART stations, sources say ABC7 San Francisco
Eastbound Highway 92 in San Mateo closed due to hazardous material spill NBC Bay Area
Hazmat spill on Highway 92 in San Mateo closes streets KTVU
News - Operation Pure Cure tests bioterrorism response DVIDS
Tanker Truck Rollover, Hazmat Situation Closes Alpine Road Near La Honda CBS News
7-Eleven stores settle for $1.5 million in Bay Area hazardous material case The Mercury News