Michael got back to me fast and was able to come out the next day to figure out what type of rodent had gotten into one of our portable classrooms. Come to find out it was some ground squirrels and Michael was very knowledgeable with the Healthy Schools Act regulations and recommended using a machine that puts carbon monoxide down the burrows to take care of them. It has only been two days since the burrows were treated so we are not sure how successful it was.