All the more reason to clean it out before they grow back. I intended to hit the test rocket silo on my analysis tour next, actually. They've done it to us enough times. As for the radioactive wastewater concern, many times plutonium compounds are injected into the water supply to prevent habitable conditions from occurring down there for Xen fauna. While the beasts are a bit more adaptive than we'd like, it does help.
Safety is job one.
Artificial intelligence was removed from the HEV suit after Mark 2. The Mark 3 and 4 suits are completely user-controlled. I contracted work out to the Facility as an assistant risk analyst, before my superiors all died out leaving me with the top position. Don't worry, I made sure before accepting the job. Hey I have noticed that at the Black Mesa compound there is definitely no shortage of liquids.