Tuesday's Second Hour: We're talking Clean Water Wednesday this hour on The Big Show sponsored by the Iowa Agriculture Water Aliance! Mason City farmer Dean Bonheim tells us about his operation and the clean water practices they've implemented. We also visit with Joy Van Wyngarden from Mahaska Soil & Water Conservation District about some of the practices she has overseen in the South Skunk Watershed preventing soil erosion and keeping nutrients in the field. Don Roose from U.S. Commodities closes the day with our last look at markets.