The Walnut Creek Wastewater Treatment Plant was built in 1977. It receives wastewater flow from Austin Water Utility's sanitary sewer collection system and treats it before returning it to the Colorado River.

The City’s approved receiving station for hauled liquid wastes is also located at the Walnut Creek Wastewater Treatment Plant. For more information, including receiving station hours, please visit the Liquid Waste Hauler Program webpage.

In order to maintain reliable wastewater treatment to City of Austin customers, Austin Public Works and Austin Water are undertaking  major improvement projects within the Walnut Creek Wastewater Treatment Plant. 

 

Pumping System Improvements Project

The advanced age of the equipment and obsolescence of the instrumentation and controls in these process areas has led to operational and maintenance challenges. Replacement of the existing pumping systems is necessary to restore reliability to the plant’s hydraulic capacity.

(CIP ID 3023.022)

Construction Time Frame

Construction Phase: July 2020 – September 2022
Dates are projected as accurately as possible, but are subject to change.

Project Scope

  • Removal and replacement of five (5) existing primary sludge pumps, three (3) scum pumps, associated piping and valves.
  • Removal and replacement of eight (8) existing settled wastewater pumps, and associated discharge piping and valves.
  • Removal and replacement of three (3) existing cooling water pumps.
  • Partial replacement of open loop non-potable water (NPW) piping system, replacement of closed loop piping system, and rehabilitation of existing heat exchanger.
  • Installation of a new portable emergency generator interconnect for raw water pumping system.
  • Replacement of existing control panels and instrumentation and control devices with modern components inside new modern cabinets.

Project Area

Work for this project will be limited to City-owned property at the Walnut Creek Wastewater Treatment Plant. 

Neighborhood Impact

  • Construction for this project is confined within the plant and adjacent City-owned buffer area; impact to neighborhood is expected to be limited.
  • Contractor will adhere to the City's noise ordinance, but typical construction noise can be expected within approved working hours from trucks and equipment.

Funding

  • Name of CWSRF (Clean Water State Revolving Fund) administering agency: Texas Water Development Board
  • Partially funded by CWSRF (Clean Water State Revolving Fund)

Contacts

  • Gabriel Castano, Project Manager, Public Works  | 512.974.2937 | Email 
  • Rebecca Vento, Engineer, Austin Water | 512.972.1455 | Email
  • Emlea Chanslor, Public Information, Austin Water | 512.972.0145 | Email
Sludge Thickener Rehabilitation Project

The existing gravity sludge thickener and equipment was constructed in 1977 and is beyond its useful life. Replacement of the existing gravity sludge thickener and the equipment is necessary to restore reliability to the thickening process.  

(CIP ID 3023.035)

Construction Time Frame

Construction Phase: May 2020 – October 2021
Dates are projected as accurately as possible, but are subject to change.

Project Scope

  • Demolition and rehabilitation of the existing gravity sludge thickener internal mechanism and associated components.
  • Complete demolition and replacement of the existing thickened sludge pumps.
  • Construction of a new electrical building.
  • Replacement of existing yard piping, pump station piping, valves, ventilation and odor control, controls and instrumentation, electrical, temporary thickening equipment, and other miscellaneous items. 

Project Area

Work for this project will be limited to City-owned property at the Walnut Creek Wastewater Treatment Plant. 

Neighborhood Impact

  • Construction for this project is confined within the plant and adjacent City-owned buffer area; impact to neighborhood is expected to be limited.
  • Contractor will adhere to the City's noise ordinance, but typical construction noise can be expected within approved working hours from trucks and equipment.

Funding

  • Name of CWSRF (Clean Water State Revolving Fund) administering agency: Texas Water Development Board
  • Partially funded by CWSRF (Clean Water State Revolving Fund)

Contacts

  • Gabriel Castano, Project Manager, Public Works | 512.974.2937 | Email Gabriel
  • Emlea Chanslor, Public Information, Austin Water | 512.972.0145 | Email Emlea
Past Meetings

Stay Up-To-Date

Austin Water will provide periodic updates about projects and operations at the plant. Sign up to receive email updates.