CSV column with multiple values
I spent a couple hours working on this, and it seems as soon as I posted the question I found an answer. The Feeds Tamper module will do the trick. It provides a lot of preprocessing functionality before the data is mapped to the entity fields. When configuring the data mapping, select the feeds tamper link. The explode plugin will explode the values into an array. Fields can have multiple values within an array map to a single field. 

I hope that anyone else that has this problem finds this to save them some time.