While it’s been almost a month after propane vapor was detected in a private landfill north of a gas storage facility, Butler County’s EMA chief said there have not been any more leaks detected.

On Dec. 21, the Butler County Emergency Management Agency, state fire marshal and the chiefs of the Middletown and Monroe fire departments held a joint press conference in Monroe with officials from Enterprise Products about a propane gas leak detected in the landfill north of the company’s gas storage facility in Monroe.

The Butler County EMA Director Jeff Galloway said another bout of testing for propane was conducted last week, but nothing was found. More testing will continue next week.

Officials said they would distribute 76 gas detection monitors to homes with partial and full basements within a 1-mile radius of the company’s Monroe facility at 3950 Yankee Road. Even though the leak hasn’t been connected to the company, Graham Bacon, Enterprise Products’ senior vice president of operations said it will pay for the carbon monoxide and explosive gas monitors.

“Out of an abundance of caution, we are working with state and local officials to provide detectors to residents,” Bacon said last month. “In addition, we are in the process of emptying the caverns for testing purposes.”

The company has already probed 250 spots along its pipeline on the northern section of the facility starting on Nov. 9, but “none of which indicated the site of propane vapors,” Bacon said.

The 76 gas detectors that will be installed by either Middletown or Monroe firefighters or members of the county’s fire and arson investigation team. The Butler County EMA will contact homeowners for installation appointments.

Testing and monitoring will continue, Galloway said, until the source of the propane has been detected and eliminated. While propane is not toxic to people, it is a flammable gas.

To contact the county EMA for more information, call (513) 785-5810.