Item talk:Q58380

Groundwater quality in the Northern Atlantic Coastal Plain aquifer system, eastern United States

Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Northern Atlantic Coastal Plain aquifer system constitutes one of the important areas being evaluated. One or more inorganic constituents with human-health benchmarks were detected at high concentrations in about 15 percent of the study area and at moderate concentrations in about 17 percent. Organic constituents were not detected at high concentrations in the study area.

Table of Contents

• Background
  

• Overview of Water Quality
  

• Results: Groundwater Quality at the Depth Zone Used for Public Supply in the Northern Atlantic Coastal Plain Aquifers
  

• Benchmarks For Evaluating Groundwater Quality
  

• Constituents with High Concentration Vary by Aquifer and Region
  

• Principal Aquifer Studies
  

• Selected References