Incorporation of Water-Use Summaries into the StreamStats Web Application for Maryland

Scientific Investigations Report 2010-5111
Prepared in cooperation with the Maryland Department of the Environment
By: , and 



Approximately 25,000 new households and thousands of new jobs will be established in an area that extends from southwest to northeast of Baltimore, Maryland, as a result of the Federal Base Realignment and Closure (BRAC) process, with consequent new demands on the water resources of the area. The U.S. Geological Survey, in cooperation with the Maryland Department of the Environment, has extended the area of implementation and added functionality to an existing map-based Web application named StreamStats to provide an improved tool for planning and managing the water resources in the BRAC-affected areas. StreamStats previously was implemented for only a small area surrounding Baltimore, Maryland, and it was extended to cover all BRAC-affected areas. StreamStats could provide previously published streamflow statistics, such as the 1-percent probability flood and the 7-day, 10-year low flow, for U.S. Geological Survey data-collection stations and estimates of streamflow statistics for any user-selected point on a stream within the implemented area. The application was modified for this study to also provide summaries of water withdrawals and discharges upstream from any user-selected point on a stream. This new functionality was made possible by creating a Web service that accepts a drainage-basin delineation from StreamStats, overlays it on a spatial layer of water withdrawal and discharge points, extracts the water-use data for the identified points, and sends it back to StreamStats, where it is summarized for the user. The underlying water-use data were extracted from the U.S. Geological Survey's Site-Specific Water-Use Database System (SWUDS) and placed into a Microsoft Access database that was created for this study for easy linkage to the Web service and StreamStats. This linkage of StreamStats with water-use information from SWUDS should enable Maryland regulators and planners to make more informed decisions on the use of water resources in the BRAC area, and the technology should be transferrable to other geographic areas.

Suggested Citation

Ries, K.G., III, Horn, M.A., Nardi, M.R., and Tessler, S., 2010, Incorporation of water-use summaries into the StreamStats web application for Maryland: U.S. Geological Survey Scientific Investigations Report 2010–5111, 18 p.

ISSN: 2328-0328 (online)

ISSN: 2328-031X (print)

Study Area

Table of Contents

  • Abstract
  • Introduction
  • StreamStats Implementation for Maryland
  • Site-Specific Water-Use Data System (SWUDS) and Available Water-Use Data
  • Development of a Linkage Between StreamStats and the Site-Specific Water-Use Data System (SWUDS)
  • Obtaining Streamflow Statistics and Water-Use Summaries from the Maryland StreamStats Web Application
  • Limitations for Estimates of Streamflow and Water Use for Ungaged Sites
  • Summary and Conclusions
  • Acknowledgments
  • References Cited
Publication type Report
Publication Subtype USGS Numbered Series
Title Incorporation of water-use summaries into the StreamStats web application for Maryland
Series title Scientific Investigations Report
Series number 2010-5111
DOI 10.3133/sir20105111
Year Published 2010
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Maryland-Delaware-District of Columbia Water Science Center
Description v, 18 p.
Online Only (Y/N) N
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
Additional publication details