### User Guide for the Connecticut Streamflow and Sustainable Water Use Estimator (CT SSWUE—Version 1.0) Computer Program

By: Gregory E. Granato**Sara B. Levin**

                            https://doi.org/10.3133/ofr20181163

#### Links

-                                                                                                                             Document:                                                                                                                                                                                                                                                  **Report**                                                                                                     (360 KB pdf)                                                                                                                                     
- Related Work:  **Scientific Investigations Report 2018–5135**  - The Connecticut Streamflow and Sustainable Water Use Estimator: A Decision-Support Tool To Estimate Water Availability at Ungaged Stream Locations in Connecticut
- Data Release:  **USGS data release**  - Connecticut Streamflow and Sustainable Water Use Estimator (CT SSWUE) Application Software 
- Download citation as:  RIS                         |                         Dublin                            Core

#### Abstract

First posted December 13, 2018

**For additional information, contact:**
Director, New England Water Science CenterU.S. Geological Survey10 Bearfoot RoadNorthborough, MA 01532

This report is a user guide for the Connecticut Streamflow and Sustainable Water Use Estimator (CT SSWUE) computer program (version 1.0). The CT SSWUE was developed by the U.S. Geological Survey in cooperation with the Connecticut Department of Energy and Environmental Protection to provide a planning-level decision-support tool designed to help decision makers estimate daily mean streamflows and selected streamflow statistics to assess sustainable water use at ungaged sites in Connecticut. The CT SSWUE provides estimates of unaltered streamflow (which is assumed to occur in the absence of any water withdrawals or wastewater discharges and with minimal human development), net streamflow alterations caused by water use, water-use-adjusted streamflow, streamflow yields (estimated unaltered streamflow minus user-defined flow targets), and estimates of the accuracy and uncertainty of estimated unaltered streamflow. The CT SSWUE uses basin characteristics and water-use volumes (water withdrawals and wastewater-return flows) obtained from the U.S. Geological Survey online StreamStats application to estimate the unaltered and water-use-adjusted streamflows. The CT SSWUE is a database application with a graphical user interface developed by using Visual Basic for Applications with the 32-bit version of Microsoft Access. The graphical user interface is designed to include full documentation for users: an introductory instruction form and onscreen help within each interactive form, including explanation buttons, context-sensitive help buttons, and tool-tip and status-bar messages.

#### Suggested Citation

Granato, G.E., and Levin, S.B., 2018, User guide for the Connecticut Streamflow and Sustainable Water Use Estimator (CT SSWUE—version 1.0) computer program: U.S. Geological Survey Open-File Report 2018–1163, 7 p., https://doi.org/10.3133/ofr20181163.

ISSN: 2331-1258 (online)

#### Table of Contents

- Acknowledgments
- Abstract
- Introduction
- Analytical Methods
- The Graphical User Interface
- Program Inputs
- Program Outputs
- The Microsoft Access Database Application
- References Cited

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