Are CAFO Operators allowed to spread waste before precipitation or rainfall?
This can also be a cloudy area. If you go the Michigan Department of Environmental Quality CAFO website, scroll down to download the 2-page PDF Instructions for Determining Precipitation Forecasts to see how weather forecasts are applicable to CAFOs. You may use the instructions along with the CAFO’s CNMP to determine if they are spreading waste in violation of their NPDES permit. The photo at right, taken in Lenawee County just before a predicted rainfall, shows manure waste application on a fairly steep slope.