My hubby's a stormwater analyst, you know...that's why I get to chat when it's rainy here! LOL These devices that are placed in the runoff system "page" him when they have a sample ready for him. Then he goes and gets them and analyizes them. Sometimes it's in the middle of the night. Worries me to death when it's really bad and there are tornado warnings and such. Remember that time in chat? It started hailing just minutes after he left...big old golfball size hailstones! I just knew he was being demolished in his truck, but he missed the whole thing!
Whew!
I used to be in the "environmental industry." We analyzed dump sites for toxic waste....fun job.