21:00 Hrs. The structure assignment was dispatched to Shed Rd. in Union Townshhip for a dwelling fire. While responding, Chief 7 was advised of a fully involved building. FM29 reported heavy smoke showing from a mile away. Chief 7 arrived and confirmed a fully involved dwelling with extension into 2 other structures. Within minutes Union Command called for the 2nd and 3rd Alarm, which brought in tankers and manpower from Berks, Chester, and Montgomery Counties. Heavy fire was encountered for over an hour until crews were able to get the upper hand. Union Command called for a 4th Alarm for additional resources and cover ups. Two fill sites were established, one was at the Union Twp. Boat Ramp while the other was on Monocacy Creek Rd. The Command Staff of the BUFD would like to express a sincere Thank You to all the Departments involved. The fire is currently under investigation by the Union Township Fire Marshal and PA State Police.