National Water-Quality Assessment (NAWQA)
Study Unit Publications

Albemarle-Pamilico Drainage
Allegheny and Monongahela River Basins
Apalachicola-Chattahoochee-Flint Basin
Central Arizona Basins
Central Columbia Plateau - Yakima River Basin
Central Nebraska Basins
Cook Inlet Basin
Eastern Iowa Basins
Georgia-Florida Coastal Plain
Great and Little Miami River Basin
Great Salt Lake Basins
High Plains Regional Ground Water
Hudson River Basin
Kanawha-New River
Lake Erie-Lake St. Clair Basins
Long Island-New Jersey Coastal Drainages
Lower Illinois River Basin
Lower Susquehanna River Basin
Lower Tennessee River Basin
Mississippi Embayment
Mobile River Basin
Nevada Basin and Range
New England Coastal Basins
Northern Rockies Intermontane Basins
Ozark Plateaus
Potomac River Basin
Puget Sound Basins
Red River of the North
Rio Grande Valley
Sacramento River Basin
San Joaquin-Tulare River Basins
Santee Basin and Coastal Drainages
South Central Texas
South Platte River Basin
Southern Florida
Trinity River Basin
Upper Colorado River Basin
Upper Illinois River Basin
Upper Mississippi River Basin
Upper Snake River Basin
Western Lake Michigan Drainages
White River Basin
Willamette Basin
Yellowstone River Basin