They're all doing research out there. German said any 2 days at the Institute are never the same. Water quality depends on what you're going to use it for. And we usually don't get two people with the same problem in any one day. That is not always an easy task.
Situations often call for expertise on subjects outside of water quality.
The Institute staff then turns to specialists on campus. So, there's bound to be somebody here that can help the person with the problem.