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That looks a bit small to have shatter cones, cristobalite, impact breccia or any of the usual high energy features. The only way to prove that one would be to dig up a chunk of the meteorite. There's a chap at Geoscience Australia called Andrew Glickson who spends most of his spare time chasing these sorts of things down and is probably the foremost authority in this country on them.
There's plenty of other good geological reasons for there to be a dried up waterhole there, but without an experienced pair of eyes on site, it's anybody's guess.
cheers,
Andrew
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