Texas Water Service Boundary Viewer (TWSBV) Editor

The Texas Water Service Boundary Viewer (TWSBV) application is closed for editing for the 2022 Water Use Survey Year. It will re-open January 1, 2024.
The TWSBV application is still available for the public to view water system boundaries.

If you have any questions or need assistance, please contact the administrator at WSBViewer@twdb.texas.gov or 512-463-9637.

Texas Water Service Boundary Viewer logo

The TWDB is using the application Okta to provide access to our business applications in one, easy-to-manage user portal.

*Only users new to Okta will need to set up a new TWDB Okta account.
*If you submitted a 2021 water use survey through the Okta application, please use the same credentials to sign directly into the Texas Water Service Boundary Viewer through Okta use the following link (Water Service Boundary Viewer).

Note: If you are able to log into the Viewer editor but do not see your water systems listed in the Provisional Service Areas tab grid that you previously had access to, you will need to request access to your water system(s) through Water Use Survey.
For addtional information with sign in and requesting access to your water system(s), please read Boundary Viewer Sign in Guide.

Please refer to the FAQ and Guidance Video Page for step by step instructional videos.

For additional help with Okta user login (create your account, reset your password, unlock your account, update your user profile, and set up Multi-Factor Authentication) please visit: Okta User Guide

If you need any assistance please contact the administrator at WSBviewer@twdb.texas.gov or by phone at (512) 463-9637


The Texas Water Development Board (TWDB) has developed a statewide public water system service area mapping application called the Texas Water Service Boundary Viewer (Viewer) through a grant from the U.S. Geological Survey (USGS) Water Availability and Use Science Program. While several water system mapping applications exist in the state, they do not necessarily represent the actual retail water service areas or include all the public water systems (PWS) within the state. This mapping application strives to collect and provide the most up-to-date and best data available on the water service areas for all community PWS within Texas.

  • For Editor: Partnering with the Water User Survey program each year, water systems are asked to update or verify their service boundaries to reflect the current retail water service areas using the Viewer application. The Viewer application for editors is accessible through the Water Use Survey and only for qualified personnel with access to water use survey by sigining in Okta and the Viewer applicaiton can edit boundaries. Chrome is the preferred browser.
    User Guide for Editor
  • For Public: The application will also be available to the public to view the water service boundaries and related reports including historical water use and Texas Commission on Environmental Quality public water system information. No sign in is needed.
    User Guide for Public

This material is based upon work supported by the U.S. Geological Survey under Cooperative Agreement No. G17AC00016. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the opinions or policies of the U.S. Geological Survey. Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.

For more information, please visit the FAQ and Guidance Video Page page for general users as well as editors of the Viewer application.

If you need any assistance please contact the administrator at WSBviewer@twdb.texas.gov or by phone at (512) 463-9637