It’s basically aquifer water. When the silo was active they had to run pumps to keep it from flooding. It’s actually one of the ways silos could be identified by satellites. They’d have oversized drainage ponds in the middle of nowhere where they’d be pumping the water.
Flooded with stagnant water? Do you want brain worms? This is how you get brain worms.
If there’s no sunlight energy providing for phytoplankton, there’s probably not much of a food chain in there to support parasites.
Else cave diving sites would be equally dangerous.
It’s basically aquifer water. When the silo was active they had to run pumps to keep it from flooding. It’s actually one of the ways silos could be identified by satellites. They’d have oversized drainage ponds in the middle of nowhere where they’d be pumping the water.