PUCTX Website
Skip Navigation LinksIndustry Information Water CCN Mapping Information

CCN Mapping Information

What is a Certificate of Convenience and Necessity (CCN)?

A Certificate of Convenience and Necessity (CCN) gives a retail public utility the exclusive right to provide retail water and sewer utility service to an identified geographic area which our rules refer to as the "certificated service area". (See below for the three types of certificated service areas).

Chapter 13 of the Texas Water Code requires a CCN holder to provide continuous and adequate service to the area within the boundaries of its certificated service area. While some municipalities and districts choose to obtain a CCN, they are normally not required to have one. A district or municipality may not provide retail water or sewer service within an area being lawfully served by another utility, unless that district or municipality has a CCN for the area.

What are the Different Types of Certificated Service Areas?

  • Bounded Service Areas: These are certificated service areas with closed boundaries that often follow identifiable physical and cultural features such as roads, rivers, streams and political boundaries.

  • Facilities +200 Feet: These are certificated service areas that are represented by lines; however, they also include a buffer of a specified number of feet (usually 200 feet). The lines can, but may not correspond to distribution lines or facilities in the ground, and normally follow along roads.

  • Facilities Only: These are certificated service areas that are represented by lines; however, they are granted for a "point of use" that covers only the customer connections at the time the CCN is granted. Facility only service lines may, but may not always, correspond to distribution lines or facilities in the ground, and normally follow along roads.

What are the CCN Mapping Requirements for Applications and Petitions?

The following documents provide detailed mapping requirements for entities filing hard copy maps and digital mapping data for applications related to Certificates of Convenience and Necessity (CCN), including obtaining or amending a CCN, the sale, transfer, or merger of a CCN, decertification of a CCN, and requests for the expedited release from a CCN.

For detailed instructions on filing hard copy maps and digital mapping data, click on Filing Maps and Data.

What are the Filing Requirements for Maps and Digital Mapping Data?

When filing applications to obtain, amend or decertify portions of a CCN, or submit a petition for expedited release from a CCN, applicants must file hard copy maps and digital mapping data identifying the requested area(s). Seven copies of the initial application, including any supplemental items and both physical maps and physical media (ex: CDs, USB flash drives) containing digital mapping data are required with filing an application with the PUC. To help with processing your application, it is helpful for applicants to electronically upload the Adobe PDF maps and digital mapping data into the PUC Interchange Filer. Click on PUC Filing Procedures for more detailed information on how to file new applications and supplemental items with the PUC.

Both the hard copy maps and digital mapping data must be filed in the acceptable file format, delivered via one of the approved media formats identified below.

Filing Maps: Each copy of a map must be filed in its original size (to scale).  Maps shall not be reduced or enlarged.

  • File each unique map in a hard copy (paper) format; and
  • File each unique map in an electronic copy (Adobe PDF) format

Digital Mapping Data: All file formats of digital mapping data containing the requested area(s) must be georeferenced in either NAD 83 Texas State Plane Coordinate System (US feet) or in NAD 83 Texas Statewide Mapping System (meters). Each file format shall include a single, continuous polygon record labeled as the requested area. The digital mapping data must be filed in the approved media formats identified below.

Acceptable File Formats

  • Shapefile (.shp)
  • Geodatabase (.gdb)
  • Drawing file (.dwg)

Acceptable Media Formats

  • Data disk (CD)
  • USB Flash Drive

Where can I Download PUC's Water and Sewer CCN Digital Mapping Data?

The PUC's official digital mapping data includes certificated service areas for retail water and sewer utilities. This data is available for download in a shapefile format in the projection, NAD 1983 Texas Statewide Mapping System (Meters). The data includes the current boundaries for the certificated service area issued to each CCN holder. Before filing an application, we suggest using this data to remove any overlaps or gaps with existing CCNs before filing the requested digital mapping data with an application.

Download CCN Data Files: PUC CCN Water Data (.zip) | PUC CCN Sewer Data (.zip)

Click on Water and Sewer CCN Viewer to view, search and print existing CCN data

Please E-mail water@puc.texas.gov questions you have regarding CCN maps, the CCN viewer or data files.

How do I Use the Water and Sewer CCN Viewer?

The PUC's CCN viewer enables users to search, view and print retail water and sewer certificated service areas for holders of a CCN. The CCN Viewer may be used to search by address to locate the water or sewer CCN service provider. In addition, the CCN Viewer may be used to prepare map filings for applications to obtain a CCN, and amend or transfer a CCN. Before filing an application, we suggest reviewing the existing CCN digital mapping data issued to the CCN holder to be amended or transferred.

Click here to access the CCN Viewer.

Click here to download Water and Sewer CCN Data.

Please note: The CCN Viewer is best viewed with Internet Explorer 9.0 and above, or the latest version of Google, Chrome or Firefox.

Who Provides Water and Sewer Services to My Address or Property?

If you need help finding out who provides retail water and sewer services to an address or property, you may use the Water and Sewer CCN Viewer to locate the provider. If you are unable to locate the address or property in the CCN Viewer, you may obtain further assistance by returning the form below to the PUC Mapping Staff either by email or mail.

PUC Service Request Form

Please email requests to:
water@puc.texas.gov

Please mail requests to:
Public Utility Commission of Texas
Water Utility Division
Attention: Mapping Staff
P.O. Box 13326
Austin, TX 78711-3326