a) How the hell did Nathan_ get Beak with Alpha mutagen???
b) Elf-a isn’t advertised as such, because it wasn’t stable when Dr. Maiar rammed it into human trials (granted, this was after they discovered the blob in the groundwater–probably in sewage processing plants too). Results left the ward unusable and killed off the other half of the subjects.
So it’s around–but you’d need to look beneath the surface to find it.
NOBODY DROPS MAIAR INTO LAVA