Landowners near Wahpeton and the Dakota Resource Council are asking the North Dakota Department of Water Resources to reopen a challenge to a water agreement that would provide up to 500,000 gallons a day for a planned 12,500-head dairy in southeastern North Dakota. The dispute could shape how the Wahpeton Buried Valley Aquifer is used for years to come, and whether nearby residents get a full hearing when they raise concerns about shared ground…