I speculate that the answer to Boff's question is that most folks who answered will not know if litter was treated. However, I have it on good authority from a former Georgia DCNR employee that the overwhelming majority of it is not treated. I think the USDA is responsible for monitoring that and I think my source said they had 1 employee responsible for monitoring the whole state of Georgia. Once the chicken houses are emptied, so is the litter, and it goes straigh to a field if anyone is willing to take it.