Please, enlighten us on what the minimum amount of volunteer hours are, LOL. It cracks me up when people around here say you need 100 volunteer hours. Majority of people I know got in with <100 hours. If you bomb your DAT and your GPA is shot then yes, maybe you need to have a lot of volunteer hours to show you're at least involved. This obviously isn't the case here.
As for OP, your grades are amazing and you will have no problem getting into schools. People would kill for stats like that. If for some crazy reason you don't get into a school then it'll be an easy fix for the next cycle. If you're that worried about your volunteer hours, continue to volunteer throughout the cycle and let schools know periodically that you've been working on it.