Welcome to our homepage! This site is your source for water-resources information collected and interpreted by the U.S. Geological Survey representing Maryland, Delaware, and the District of Columbia.
|New water-quality station is a step forward for Baltimore water pollution clean-up
In a first for Baltimore and the nation, the U.S. Geological Survey and the Environmental Protection Agency will soon be installing a suite of sensors that will provide the public and scientists with the first comprehensive, real time look at water quality in Baltimore’s Inner Harbor.
|Study Shows High Potential for Corrosive Groundwater in Maryland, Delaware, the District of Columbia, and Many Other States
A new U.S. Geological Survey assessment of more than 20,000 wells nationwide shows that untreated groundwater in 25 states has a high prevalence of being potentially corrosive. The states with the largest percentage of wells with potentially corrosive groundwater are located primarily in the Northeast, the Southeast, and the Northwest United States.