So this place is just called "Compound", and it's in a fucking culvert within some part of the municipal water system. The people from Covenant hate synths so much they built a little jail in here and they use it to weed out the synths from the LTN. If you're so confident in your robot-hating credo that you based an entire town around, why are you hiding in the culvert. Anyway this is the wilson they left out for the synth. The "Compound W", if you will. Along with that is a full-on mongrel leg, which is just so appetizing, it's difficult to believe it remained untouched. Is this here as a test? I wonder if synths mime the act of squatting over the bucket.
