On Monday around 4 p.m. a 3/4 ton pick-up truck from Superior Oil Company was pulling a trailer from CR 429 onto Highway 281. According to Atascosa County Fire Marshal Chuck Garris the trailer somehow came loose and spilled acetic acid onto the road and bar ditch. HazMat crews were out on Tuesday morning, said Garris, to dig up the contaminated dirt. There were not any injuries. The Pleasanton Volunteer Fire Department, DPS and Texas Department of Transportation responded.