. >> dr. daniel horowitz is talking about the chevron fire that happened in richmond on monday. he says this fire is much more serious than a regionally about. >>will: before by >> government officials say around one dozen workers were engulfed before it ignited into this fire. a government team on assignment in richmond found that the crude oil a unit where this happened was shut down for maintenance. a nearby pipe that was created was replaced. >> we need to look at the decision making around this pipe. walked should it have could replaced? concordat there's something about those maintenance procedures. >> this fire was no doubt one of the most serious that they have dealt with in recent years. oil refinery fires have been on the rise and have become very common. >> they're going to be back at this refinery on monday. they have more people flying in from washington. a structural engineer and an air quality expert. there will actually go to the site where this happened. >>vicki: richmond residents lined up today to file claims hoping for reimbursement for medical care, property