By Cliff Brunt, Kathy McCormack and Sarah Brumfield
Associated Press
WEATHERFORD, Okla. 鈥� A leaking tanker truck spewed outside a hotel overnight, filling its hallways with fumes and forcing hundreds of nearby residents of a small Oklahoma city to evacuate, authorities said Thursday. Several dozen people were treated at hospitals.
Officials lifted a shelter-in-place order Thursday morning, hours after firefighters wearing gas masks went door to door in Weatherford, waking people up and telling them to leave because of the anhydrous ammonia leak.
| MORE: All-hazards EMS safety
An oil field worker staying at the hotel where the truck had been parked said he heard a 鈥渇aint pop鈥� Wednesday night and noticed a smell minutes later. He and a coworker left their room and hustled into a hallway and then an elevator filling up with a pungent odor.
Once outside, they saw their vehicles underneath a cloud of ammonia, said Michael Johnson, of Nacogdoches, Texas. 鈥淭he smell itself punched me,鈥� he said.
He took off running, but noticed his roommate wasn鈥檛 with him and saw that he had run for their trucks. He said a police officer managed to save his coworker.
鈥淗is lips were purple and frozen shut,鈥� Johnson said. 鈥淗is eyes were bloodshot red. His skin was all red.鈥�
Johnson found one person stumbling and gave him a shirt to put over his mouth. At one point, he looked at the smoke and saw they were surrounded, thinking 鈥淲e鈥檙e going to die.鈥�
Police said 34 people were treated at a local hospital and 11 patients were taken to Oklahoma City area hospitals. Several victims remained in intensive care late Thursday, but the majority were in stable condition, police said in a statement. Dozens more received treatment at casualty centers.
Five responding officers sustained chemical burns to their airways, police said.
At least 500 to 600 people went to a shelter early Thursday while others were ordered to remain inside their homes for several hours. Some nursing homes were evacuated, and schools were closed for the day.
A leaking gasket from a tanker truck carrying 25,000 pounds (11,340 kilograms) of ammonia was responsible, the EPA said in a written statement. The National Transportation Safety Board said it was investigating.
Anhydrous ammonia is used as a farm fertilizer to help corn and wheat grow. The colorless gas has a suffocating odor and can be deadly, especially at high concentrations, or cause breathing problems and burns to the skin and eyes.
Just last week, an forced evacuations near Yazoo City, Mississippi, and two years ago, in Illinois when a tanker truck spilled anhydrous ammonia after it was forced off a road by a passing minivan.
The cleanup in Weatherford 鈥� a city of 12,000 people about 70 miles (115 kilometers) west of Oklahoma City 鈥� could take several days, the police chief said.
鈥淲e pretty much got a lot of this stuff diluted right now,鈥� Orefice said, adding that authorities were working with environmental officials.
The EPA said subsequent air monitoring did not detect any ammonia in the local residential area. The levels of pH in the local creek were within normal and the levels detected in the soil were expected to 鈥渘aturally neutralize over a short period.鈥�
The driver of the truck carrying the gas had parked behind a Holiday Inn Express to get a room there for the evening, Orefice said. The cause seemed to be a mechanical failure on a valve or a faulty seal, the police chief said.
Authorities said the air quality was being monitored and that the tanker truck was no longer leaking. A number of agencies were assisting, including hazmat crews and the Oklahoma National Guard.
Trisha Doucet called police for help when she learned the leak was blocks away from where her mother was caring for her bed-bound 89-year-old grandmother. An ambulance was quickly dispatched to get her to safety.
Her grandmother, who is on hospice, was reluctant to leave. 鈥淏ut this is my house,鈥� she said.
Doucet, who used to work as an EMT and knew the dangers of anhydrous ammonia, recalled telling her grandmother, 鈥淭hat鈥檚 the hardest part. I know it鈥檚 your house, but you really have to go.鈥�
