RAVENNA, MI (WHTC) - Staffers at the denDulk Dairy Farms in Ravenna controlled about two thousand gallons of manure from a pit spill that occurred during the overnight hours on Tuesday. A state DEQ inspector noticed waste overflowing from a methane gas-producing system the day before, and weather conditions, along with a computer malfunction, may have led to the spill that was checked before it could flow into Crockery Creek.