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Water Science for Maryland, Delaware and the District of Columbia

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Contact Us


For general information, write or call:

U.S Geological Survey
Maryland-Delaware-D.C. Water Science Center
5522 Research Park Drive
Baltimore, MD 21228
Phone: 443.498.5500
Fax: 443.498.5510


For information requests, please contact:

Chris Nealen (cnealen@usgs.gov)
Maryland-Delaware-D.C. Water Science Center
5522 Research Park Drive
Baltimore, MD 21228
Phone: 443.498.5583
Fax: 443.498.5510


For data requests, please contact:  NWIS Data Inquiries

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Page Last Modified: Friday, October 24, 2014