The proposed project area covers roughly one hundred square miles within Sibley County, but also includes a small portion of Nicollet County where Judicial Ditch 1A runs into the south branch of the Rush River. One lake and seven streams are part of the proposed project monitoring sites. Of the seven stream locations, two are part of the High Island Creek Watershed, while the remaining five are part of the Rush River Watershed. The lone lake, Lake Washington, falls within the Bevens Creek Watershed.