posted on Sep, 5 2005 @ 08:37 AM
They are simply giving the aliens that inhabit the area51 a little taste of non-Nevada desert. There are multiple species that cannot leave the base
due to physical stringents such as size, and smell that cannot be easily disguised, or morphed. (There are other species that cannot control their
aggressive, gnarly behaviour as well. i.e. Visitors from the Sirius system cannot control their inhibitions to devour felines on sight. Live felines
are a drug-like delicacy when eaten by the Sirius aliens). Since these aliens cannot intermingle safely with the Terran societies, they are confined
to specific areas within the area51 compounds. This oasis area gives them a change of scenery, and a chance to experience a part of earth otherwise
not accessible for them.
Or it could simply be a freshwater supply dugout, or a sewer septic dugout for "gray" water, for the people that work there...