Over 12 months will be prison. Prison is a better place to be than county, relatively speaking.
You got caught with a large amount intened for distribution. Did you have the weed baggied off already? If so, you're in pretty deep.
You will probably get some of the charges dropped, but not all of them. You will be serving time if you're not rich or come from a powerful family. How much, no one can say. Your goal will be to get the minumum time possible. Talk to multiple attorneys and find out who's willing to do the most for you. Figure out what kinda plea bargin you will be doing. You might be able to get down to a few months and five or so years CS. You will likely get out early on probation as well.