Water-Quality Assessment of the Central Nebraska Basins-— Enering a New Decade

Authors

Ronald B. Zelt, U.S. GEOLOGICAL SURVEY
Jill D. Frankforter, U.S. GEOLOGICAL SURVEY

Date of this Version

March 2003

Comments

USGS Fact Sheet 013–03.
March 2003.

Abstract

In 2001, the U.S. Geological Survey’s (USGS) National Water- Quality Assessment (NAWQA) Program began its second decade of intensive water-quality assessments (Cycle II). NAWQA scientists plan to revisit 42 major river-basin and aquifer systems (called study units) that were assessed in the first decade (Gilliom and others, 2001).