WESTBY, Wis. – The Westby Creamery co-op is planning $1 million in new facilities to filter excess whey from cottage cheese production. The creamery had been spending $50,000 a month to dispose of whey. Now the whey will be converted into animal feed. Pete Kondrup, general manager, said the whey project will help keep the 140-member 119-year-old co-op in business. It wasn’t sustainable to keep the plant running and spending $50,000 a month hauling the whey out, he said. The whey project will pay for itself in in five to six years.