With pump prices going up and up local school bus operations are being affected, too.Fuel costs have gone up at least one-third for Kingsport City Schools since the start of the school year, according to Kingsport City Schools Transportation Director Tommy Starnes.Daily fuel costs for their buses went from $900 to nearly $1,400. Starnes said there are currently 39 buses being operated by the school system, totaling an average of $2,600 per day.