Gas leak prompts evacuation to Plains Midstream
By: Superior Telegram, Superior Telegram
Superior firefighters responded to a propane leak around 10:50 a.m. Monday at Plains Midstream, formerly known as Dome Petroleum, 2600 E. 21st St, according to Battalion Chief Vern Johnson. The building, a pump house, was evacuated and company personnel began the process of isolating the leak by evacuating gas from the lines leading to the leaky valve.
Traffic briefly was reduced to one lane on Stinson Avenue during the incident, but the plant remained blocked off.
Johnson said the pump house is filled with gas, but it is not mixed with oxygen so it is too rich to ignite. The pump house itself is intrinsically safe due to double and triple protections built into all electrical systems, Johnson said.
One fire rig remained on standby at Plains Midstream until the valve was isolated and to assist with ventilation, Johnson said.