Thank you everyone for your responses. I was just looking at my filter today and reading the manual (Yes, I figured it was that important to actually read it). I found the section where it pointed me to the CDC website on water treatment methods. This saved me a duplicate posting.

I have been thinking about doubling up and filtering and treating. The four hour wait is not to desirable, but I really don't want to spend the extra time in the bathroom or digging holes.