You may have more success if you explained why you need this done (e.g., you posted your email). If that does happen to be why you want them gone, it can probably be done but it is too late if you wanted to prevent it from being completely public...
I hate to break the news, but getting admin to delete these is next to useless -- this site is copied on many servers the world over. You'll spend years trying to get that information removed from everywhere. Your life will be much easier if you just get another gmail and close the other.