HOUSTON (KTRK) -- Nearly a week after fire ripped through Custom Packaging and Filling plant in Houston's Spring Branch neighborhood, we finally have some idea of what exactly was burning.
The city made available a Material Safety Data Sheet of the chemicals stored on the site. However, it is not a complete list because the company never reported to the state what they stored. In addition, city officials also don't know the amount of each chemical on site, because there is no proper paper trail.
VIDEO: Powerful fireballs shoot up from burning west Houston warehouse
STORY: HFD identifies chemicals seeping into water after fire
"This particular facility did not have a hazardous certificate of occupancy," said Houston Mayor Sylvester Turner, "and it was not registered as a hazardous facility."
Turner said the last time the facility was inspected by the city was 2008.
Here is a list of what the city, state and federal authorities have been able to cobble together:
Several of the chemicals listed are combustible, and can be toxic after prolonged exposure. However, just exactly how dangerous the fire was, nobody knows. Again, that is because the company has not provided the specific quantity of chemicals.
PHOTOS: Images from the massive Spring Branch fire
Debora Rodrigues, an assistant professor of civil and environmental engineering at the University of Houston, told Eyewitness News in an email statement that the chemicals listed certainly raise concern.
"Exposure to phenol by any route can produce systemic poisoning. Phenol is corrosive and causes chemical burns at the contact site. Symptoms of systemic poisoning often involve an initial, transient CNS stimulation, followed rapidly by CNS depression. Coma and seizures can occur within minutes or may be delayed up to 18 hours after exposure. Other symptoms include nausea, vomiting, diarrhea, methemoglobinemia, hemolytic anemia, profuse sweating, hypotension, arrhythmia, pulmonary edema, and tachycardia."
Dr. Rodrigues cautioned the amount of harm really depends on the amount of chemicals.
"They have not provided us for example, with a listing of materials that were out at the facility, they certainly have not provided us with quantity out there. They have lawyered up," said a clearly frustrated Mayor Turner.
Turner and council members say they want to see increased inspections at the local level, and increased regulations at the state level. However, they admitted that will be a daunting process because enforcement and regulation cost money, and the State of Texas generally has not favored stricter regulations for chemical companies.
VIDEO: ABC 13 Eyewitness video of fire from ground at warehouse