The Nobles Soil and Water Conservation District (SWCD) will test waters needing data for impairment listing in the Rock River and Little Sioux watersheds. Two reaches of the Little Rock River and the Ocheyedan River need stream water assessments. Iowa Lake needs sampling completed for impairment identification. The project will obtain adequate stream and lake data to either list the tested stream reaches and lake on the 303(d) list as impaired, or provide evidence that the stream reaches and lake is not impaired.