Two engines, including one specializing in hazardous materials, arrived on the scene. Five duplexes were evacuated as a precaution, and 1000 North was closed until shortly before 8:00 a.m, Bassett said.
"The good thing about natural gas is, it's lighter than air, so as soon as we open up the sewer manholes and the water manholes, it just evaporates and goes away, which is what we want it to do," Bassett said.
Questar utility workers were called to the scene shortly after 7:00 a.m. By 11:50 a.m., they had found the leak and secured it, said Questar spokesman Chad Jones.
While the cause of the leak was unknown, Jones said natural gas leaks are usually caused when construction workers damage gas lines.
Residents were returning to their homes Tuesday afternoon, Jones said.