North Carolina Projects and Studies

The 1996 Amendments to the Safe Drinking Water Act require that each state prepare a source-water assessment for all public water supplies. In 1999, the U.S. Geological Survey provided components of the inherent vulnerability rating that were used with the contaminant rating to determine the overall susceptibility rating of source water supplies. In 2009, the USGS updated key layers of the unsaturated zone and watershed characteristic rating using the methodology developed for the 1999 project work.

Science Topic:

Groundwater resources
Increased Population and Water Resources
Support of Federal and State Programs