"The new employee was very arrogant and, I would say, rather casual. He didn't care about the rules and did the checks on a very irregular basis, at times that only he considered to be fit. He didn't care about the schedule and, what was really frightening, he didn't care about the safety rules. On Monday morning we discovered that he didn't shut the first vault and when we told him about it he said that that was not a big deal. All the personnel serving the station were in shock because of the new employee's irresponsible demeanor."
How is "serving the station" in the example above different from "maintaining the station"? Which verb would sound more natural in that context?