The West Grove, Union of Oxford and Cochranville Fire Companies were dispatched to a home on Ewing Rd in Penn Twp for a reported trailer fire. The report was a 30' trailer, approximately 30' away from the home, fully engulfed with fire. The trailer contained 55 gallon drums of chemicals used for spray foam insulation and 20 gallons of diesel fuel. Engine 22's crew, along with the crew from Engine 21-2, arrived and stretched 200' of pre-connected hose to extinguish the blaze. The crew from Cochranville assisted with extinguishment and overhaul. Assistant 22 had command and Deputy 21 had operations. Crews operated on scene for about an hour.