Water Science for Maryland, Delaware and the District of Columbia
Real-Time Data (current conditions)
Click to access historical data for CH Bg 12
Click to access CH Bg 12 Groundwater Watch page
Click to access available Annual Data Report pages for CH Bg 12
• Return to Top of Page
Click to access historical data for CH De 45
Click to access CH De 45 Groundwater Watch page
Click to access available Annual Data Report pages for CH De 45
Interactive Map of the Area
USGS MD-DE-DC Water Science Center5522 Research Park DriveBaltimore, MD 21228Tel: 443.498.5500 || Fax: 443.498.5510 webmaster@md.water.usgs.gov
Click on a state