I have personally never seen any graduate level program that officially allows someone with a GPA of <3.0. Unofficially, some programs may be more flexible for those who had some personal challenges as an undergrad, and has shown recent improvement and promise as a potential grad student through doing post-bacc (that relates to the field), and extensive research (if by thesis). If you are planning to do a masters by thesis, then a sponsoring professor would also be neccessary and may make the difference. There is a massive thread about getting into grad school with a low GPA in the main pre-med forums. I suggest you search there. On a side note, are you a California resident?