Where do you get this shit?!
They're still bug-hunting. Estimated time of 0 bugs is something like 7 days now. That will be the first RC. That one will be send to Vivendi and if they approve it it will go to the manufacturing plant. Half-Life 1 got approved in one try, I hope this one does as well. Because otherwise we would have to wait a few weeks more, depending on what needs improving according to Vivendi.
Also, don't forget that the CS:S BETA ends like August 24th. There will be new bugs due to new hardware configurations of the people testing it. Not even all the content is ready for CS:S. Mainly the maps, balancing and models.
Like I've said last year, this game will be in stores September 30th, just 1 year after my initial guess.