We are still having the issue with our drain field. I think that the ground is just too saturated to absorb too much from us as well. Thankfully, any flooding in our laundry room (the first place to show trouble) has been relatively minor and has gone down fairly quickly. At present, most of the lawn directly over the drain field is snow free (I did not shovel snow on it this year and even shoveled some off). Hopefully, that means our troubles in that area are soon over.
As much as I love the snow, I'm looking forward to seeing green again.