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Source Water Assessment & Protection Viewer

This interactive map viewer allows users to access the PWS source assessment information, view and print maps of source water protection areas, and obtain details about selected public water sources.

  • User Guide - This downloadable PDF document explains how to use the tools available in the viewer.
  • Metadata - For more details about this data and the Viewer, please visit the SWAP Viewer Description  page in ArcGIS Online.
  • Access and Use Constraints - This product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. It does not represent an on-the-ground survey and represents only the approximate relative location of property boundaries. Presently, all GIS related applications have a statewide exemption from 1 TAC 213 granted by the Department of Information Resources . If you require special assistance, please consult the Esri Software - Voluntary Product Accessibility Templates (VPATs) for ArcGIS Online applications.
  • Contact Us - E-mail the Water Supply Division at or talk with staff in the program at 512-239-4691