Welcome to Columbia!
 This is a great small city to live in, with lots of outdoor activities and many sub communities to get involved with.
 However, being new myself to permaculture I can't guide you well in that regard.
 Here are some places to start...
 
http://cityroots.org/
 http://www.rosewoodmarket.com/
 http://cawcawcreek.com/
 Cheers!