“Data from the NAWQA [Program] supplied critical information for Ohio EPA’s Total Maximum Daily Load (TMDL) effort in the Stillwater River Basin, and will continue to provide valuable data for future TMDLs in other sub-basins of the Great Miami River. Additionally, the NAWQA study has helped further our understanding of linkages between nutrients, land use, and impairment of aquatic life. The USGS has also been particularly generous in sharing scientific expertise developed by NAWQA with Ohio EPA, especially their expertise in sampling algal communities." (Robert Miltner, Aquatic Ecologist, Ohio Environmental Protection Agency)

USGS Circular 1229, Water Quality in the Great and Little Miami River Basins, Ohio and Indiana, 1999-2001