Residents there say they've been dealing with a constant deafening sound since Friday.
"It's annoying," said Leahanne Murray, who lives across from Vicinity Energy on the 2600 block of Christian Street.
"I can't hear. Can't hear the TV, can't hear nothing," she said.
The energy company says the leak is not hazardous and there are no safety concerns, which was a relief for the neighborhood.
In 2016, there was an explosion at the plant when it was owned by Veolia.
"Sometimes this happens, but never three days like this," said Harvey Romm, who's lived in the neighborhood for more than 20 years.
"A number of us tried calling over the weekend, couldn't get through, didn't really know what was going on," said Jacob Kimmel, a neighbor.
Vicinity Energy did respond to Action News. A spokesperson apologized to the neighborhood for the noise and said it will be able to work on the leak beginning Tuesday at 12 a.m.
South Philly neighborhood steamed over loud noise from energy plant
"The community can expect a significant reduction in noise once repairs have commenced at this time," said a spokesperson in a statement.
Helen Hare has lived on the block her whole life. She says, "I feel like I'm used to it... but hopefully, like they say, it will be resolved in a day or so."
The Action News data journalism team says steam makes up 11% of the energy used by city-owned buildings, and also powers other government buildings, hospitals, universities, and apartments.
The leak is not disrupting service but it is disrupting neighbors. They want the noise to stop.
"I even got to the point where I got some cheap earplugs just to try to drown out the noise a little bit," said Dayne Martinez.
South Philly neighbors steamed over loud noise
"It's constant. So, I try and tell myself it's a rainstorm to make sleeping easier," said Kimmel.
Vicinity Energy released this full statement on the issue:
"Vicinity Energy has identified a steam leak on a small auxiliary line inside its Grays Ferry facility. We understand that the steam leak is causing some disturbance in the immediate neighborhood due to the noise. Vicinity has a plan to repair the leak beginning Tuesday, January 25 at 12:00am ET. The community can expect a significant reduction in noise once repairs have commenced at this time.
While the steam leak is creating noise, there are no safety or health concerns for the community or plant personnel. We apologize for any inconvenience or disturbance to our neighbors."