Wednesday, the Lewes Fire Department was alerted to assist the Rehoboth Beach Volunteer Fire Company with a reported mobile home fire in Rehoboth Bay community. Reports stated that possibly the porch of the trailer was on fire. Officers from Rehoboth Beach arrived to find a mobile home with fire throughout. Engine 86-2 placed attack lines in service that were quickly supplimented and aided by engines 82-5 and 82-4. While fighting the trailer fire a propane tank BLEVE'd (boiling liquid expanding vapor explosion). All personnel operating on the fireground were uninjured, but the explosion began to cause spot fires in the surrounding marshland. With fire impeding on the Sawgrass South community and creeping its way towards Port Delmarva and the rest of Rehoboth Bay community, command officers called for companies to fill multiple alarms. Delaware State Police Aviation unit, Trooper2 was utilized to aid in spotting the fires while brush trucks, tankers, and engines from every fire department on the east side of the county and some in the central and southeastern side were used to keep the brush fires from homes. Units contained the fire to the mobile home and the original spot fires with estimates of roughly 100 acres burned being stated. A tremendous effort was put forth by members of all the fire companies and departments that arrived on scene to provide suppression efforts or manpower in anyway they could.