Designer - How to Apply for OSSF
  • It is recommended that a pre-construction planning meeting be held. During the planning meeting, permitting, separate plumbing requirements, licensed professionals required for OSSF, water reuse permits, industrial-strength waste, irrigation systems, protection for sewer lines in parking areas, and other common pitfalls are discussed. Contact us at 512.943.3330 to schedule a meeting.
  • Commercial systems will have other permit requirements that may delay the application. For instance, if within the Edwards Aquifer Recharge Zone, an authorization to construct the OSSF can’t be granted until the owner has an approved Edwards Aquifer Protection Plan with the TCEQ.
  • If the site is within an ETJ, or the city limits of a jurisdiction, there may be additional platting requirements. For example, the City of Georgetown and City of Taylor require all newly created lots less than five acres to go through a platting process.
  • Commercial applications may include many different flows from different sources, such as high-strength wastewater or need separate plumbing requirements.
  • No two commercial systems will be the same and any change of use will require a new permit. To help identify the owner’s plans, we have created a Commercial Use Questionnaire. Review this document with the owner to determine the wastewater flow.

How to Apply Online:
In an effort to provide better communication, document management, and project tracking, Williamson County is now accepting and processing OSSF Applications through www.mygovernmentonline.org. Our office is no longer accepting email or paper applications. We are asking for the OSSF Design and Installer Community’s assistance in migrating to the new online submittal process.  

As part of your design services,

  • Please see the attached brochure explaining how to use the My Government Online program to submit applications online. If the applicant does not have a computer at home, Williamson County is providing a computer and scanner in the lobby of the Department of Infrastructure office at 3151 SE Inner Loop, Georgetown, TX 78626. The applicant may pay the fees online, by credit card over the phone, by check, or exact cash.
  • Please emphasize that the designer’s name and contact information including phone number and email must be included in the online design application. The designer may connect and upload documents / respond to comments directly through the www.mygovernmentonline.org portal if the applicant includes the designer’s phone number and clicks the notify box. When the applicant includes the phone number the program is designed to connect the designer to the applicant. 
  • Please provide your customers with the following:
    1. A one to two-page digital scaled site plan showing the buildings, property lines, wells, and OSSF along with other relevant design information.
    2. A soils report
    3. A full design plan including the soil report and site plan for design review.

The customer will need all three of these digital documents in digital form to apply online.

Designer Checklists

Designers can review our checklists for site evaluation and design, and state-approved manuals for low pressure dose and mound design criteria.