Item 12 Water & Wastewater Commission: January 14, 2026 Council: January 22, 2026 ..Title Posting Language Recommend approval to authorize negotiation and execution of a cost participation agreement with Lennar Homes of Texas, Inc. for the City to reimburse the developer an amount not to exceed $3,881,210 for design and construction costs associated with oversizing a wastewater lift station, force main, and gravity wastewater main and appurtenances related to Service Extension Request No. 5003 that will provide wastewater service to a proposed single-family development located on FM 812, east of Highway 183 and west of FM 973. Funding: $3,881,210 is available in the Capital Budget of Austin Water. ..De Lead Department Austin Water. Fiscal Note Funding: $3,881,210 is available in the Capital Budget of Austin Water. Council Committee, Boards and Commission Action: January 14, 2026 – To be reviewed by the Water and Wastewater Commission. Additional Backup Information: The Wong Tract project consists of approximately 123 acres of land located on FM 812, east of Highway 183 and west of FM 973 (Property). The Property is located entirely within the City’s two-mile extraterritorial jurisdiction, Impact Fee Boundary, Austin Water’s service area, the Desired Development Zone, and the Cottonmouth and North Fork Watersheds. A map of the property location is attached. Lennar Homes of Texas, Inc. (Owner) is proposing to develop approximately 774 single-family homes and an amenity center. The Owner requested that the City provide wastewater utility service to the Property as proposed in Service Extension Request (SER) No. 5003. Austin Water will also provide retail water service to the Property as proposed in SER No. 5002. In accordance with City Code Chapter 25-9, the City has asked the Owner to oversize the gravity wastewater main, lift station, and force main to serve additional properties within the North Fork drainage basin consistent with the City’s long range planning goals for this area. If approved by City Council, the City will cost participate in this construction project only to the extent of the City’s proportionate share of the oversized gravity wastewater main, lift station, and force main. The proposed oversized improvements include construction of: • • • approximately 4,810 feet of 24-inch gravity wastewater main from the existing 15-inch gravity wastewater main located north of the Property in FM 973, south-southwest along FM 973, and then north-northwest along FM 812 to the Property approximately 3,355 feet of force main from the …
Item 13 Water & Wastewater Commission: January 14, 2026 Council: January 22, 2026 Posting Language ..Title Recommend approval of a resolution authorizing the City Manager to apply for and accept funding from the Texas Water Development Board (TWDB) for a zero-interest loan in the amount not to exceed $3,500,000 through the TWDB Flood Infrastructure Fund (FIF) Program for the Fallwell Lane Capital Renewal Project. Funding is available in the Capital Budget of Austin Water. ..De Lead Department Austin Water. Fiscal Note Funding is available in the Capital Budget of Austin Water. Prior Council Action: November 21, 2024 - Council approved an ordinance amending the Fiscal Year 2024-2025 Capital Delivery Services Special Revenue Fund (Ordinance No. 20240814-007) to accept and appropriate $50,000,000 in grant funds from the Federal Emergency Management Agency through the Texas Department of Emergency Management and amending the Fiscal Year 2024-2025 Capital Delivery Services Capital Budget (Ordinance No. 20240814-007) to transfer in and appropriate $50,000,000 for the South Austin Regional Wastewater Treatment Plant/Sand Hill Energy Center Flood Mitigation project May 2, 2024 – Council authorized negotiation and execution of an amendment to the professional services contract for engineering services for the Fallwell Lane Capital Renewal project with Halff Associates, Inc., in the amount of $5,500,000, for a revised total contract amount not to exceed $9,000,000. Nov 2, 2023 – Council approved an amendment to a contract for engineering services for the Fallwell Lane Capital Renewal with Halff Associates, Inc. to increase the amount by $500,000, for a revised total contract amount not to exceed $3,500,000 May 19, 2022 – Council approved a resolution authorizing the submittal of the Fallwell Lane, Sand Hill Energy Center, and the South Austin Regional Wastewater Treatment Plant Access and Flood Potential Mitigation projects as candidates for the Federal Emergency Management Agency’s Hazard Mitigation Assistance grant programs. August 3, 2017 – Council authorized negotiation and execution of a professional services agreement with Halff Associations, Inc. (staff recommendation), or one of the other qualified responders to the Request for Qualifications Solicitation No. CLMP225, to provide engineering services for the Fallwell Lane Capital Renewal Project for a total contract amount not to exceed $3,000,000. Council Committee, Boards and Commission Action: January 14, 2026 – To be reviewed by the Water and Wastewater Commission. Additional Backup Information: Floodwaters caused significant damage to Fallwell Lane on October 31, 2013, and again on October 30, 2015. This road serves …
Williamson Creek Wastewater Interceptor Project Kane Wei, P.E. Austin Water Supervising Engineer Water & Wastewater Commission January 14, 2026 Agenda Agenda Project Overview Routing Requirements Neighborhood Partnership Parks and Recreation Partnership Watershed Protection Partnership Summary 2 Project Overview 18,800+ linear feet of 72-inch diameter gravity wastewater interceptor installed using a two-pass tunneling method Project drivers: increase capacity replace aging infrastructure reduce the potential for future sanitary sewer overflows to protect the environment 3 Existing Interceptor Requires Replacement Built in the early 1960’s – size, age, location, and condition of the existing pipelines make it susceptible to infiltration during rain events, which may result in overflows No existing odor control along interceptor 4 Major Project Components Excavation of 18,800 LF of tunnel, ranging from 20 to 90 ft below grade, entirely outside of the Erosion Hazard Zone. Installation of 18,600 LF of 72-inch and 200 LF of 84-inch corrosion resistant fiberglass pipe with grouted annulus. 6 Operations and Maintenance (O&M) Shafts. 11 connection shafts for connections with the new tunnel All shafts are made of corrosion resistant fiberglass or polymer concrete materials 5 Project Benefits Installation of 22 local pipeline reconnections via open cut (5,400 LF of 8” to 48”) and jack and bore (2,500 LF of 12” to 54”) construction methods Removal and abandonment of existing wastewater pipelines and manholes in the creek. New biological odor control facility and associated rain gardens designed for potential future trailhead parking lot. Cured-in-Place (CIPP) pipeline rehabilitation of 2,700 LF of existing 36” diameter concrete pipe. Extensive environmental site restoration (native seeding, tree plantings, etc). 6 Why was this route selected? 18 different alignments evaluated via scoring matrix 22 environmental constraints considered 7 7 8 Neighborhood Partnership: Community Benefits In 2017 and 2024 - Community Open Houses in Districts 2 and 3 Increasing parkland and future trails Coordinated with nearby public projects (storm improvements, trails, etc). Additional public meetings in 2026+ 9 Parks and Recreation Partnership: Expanding Greenbelt and Trails Access 1 acre of acquired sidewalk, trail, and recreation easements 3 acres of acquired properties necessary for temporary workspace areas, to be transferred after construction is completed Transfer of up to 59.6 acres for future trailhead access near Jimmy Clay Golf Course Total: …
Capital Improvements Program Planning Martin Tower, P.E. Infrastructure Management, Austin Water Water & Wastewater Commission January 14, 2026 Austin Water Assets At A Glance More than 3,800 miles of water mains More than 2,900 miles of wastewater mains 3 water treatment plants 2 wastewater treatment plants 1 biosolids management plant 44 pump stations for water system 38 water reservoirs 142 wastewater lift stations Nearly 31,000 fire hydrants 20 campuses and 63 buildings Nearly 1,000 fleet vehicles and operational equipment Information technology 49,000 acres of managed wildlands 2 Capital Improvements Plan Development Annual process Built from zero, based on business cases Asset management data drives renewal funding levels ~600 projects are reviewed and validated each year Led by program area leaders and staff who identify: Asset risks and renewal needs Opportunities for enhancement and innovation Requirements for expanded capacity Reviewed and approved by executives who base approvals on: Managing risk to reliability and performance Affordability for customers AW CIP Business Case Example 3 Collaborative and Coordinated Planning Feedback from City departments and external agencies enable: Opportunities for Cooperation Reduced disturbance from construction Cost Efficiencies Purposeful and strategically aligned with: City of Austin Strategic Plan Austin Water Strategic Plan Austin Water Facility Plan Water Forward Imagine Austin 4 5-Year Plans for Generational Investments STRATEGIC EXAMPLES Advanced Metering Infrastructure Reclaimed Water System Improvements Walnut Creek Wastewater Treatment Plant Expansion Aquifer Storage & Recovery Austin Water Control Center 5 FY26-30 Capital Investment Portfolio 6 Building Austin’s water future, together. Water & Wastewater Commission January 14, 2026
Facilities Planning Melvin Frasier, Jr. Facilities Management, Austin Water Water & Wastewater Commission January 14, 2026 Austin Water Facilities At A Glance Serving more than 1 million customers over a 548 square mile area 63 buildings at 20 locations that provide: Office space Call centers Service centers that deploy crews in response to customer calls Emergency operations Laboratories Warehouses and storage Training and meeting areas Shop areas Parking 2 Austin Water Facilities 3 Permanent Facilities to Maintain and Upgrade Handcox Water Treatment Plant Davis Water Treatment Plant Ullrich Water Treatment Plant Walnut Creek Wastewater Treatment Plant South Austin Regional Wastewater Treatment Plant Hornsby Bend Biosolids Management Plant Handcox Water Treatment Plant Albert R. Davis Water Treatment Plant Ullrich Water Treatment Plant Walnut Creek Wastewater Treatment Plant Hornsby Bend Biosolids Management Plant South Austin Regional Wastewater Treatment Plant 4 Facilities to Improve for Better Customer Service Waller Creek Center South Service Center North Service Center Webberville Service Center Timothy Louviere Service Center Govalle Service Center Glen Bell Service Center Summit Lab (leased) Reicher Ranch Rutherford House Summit Lab (leased) North Service Center Reicher Ranch Waller Creek Center South Service Center Webberville Service Center Timothy Louviere Service Center Govalle Service Center Glen Bell Service Center Rutherford House 5 New and Future Properties to Enhance Efficiency Austin Water Control Center New South Service Center Hub New North Service Center Hub Future East Water Treatment Plant New North Service Center Hub Austin Water Control Center New South Service Center Hub Future East WTP 6 Key Projects Underway Austin Water Control Center Waller Creek Center Renovation 7 New South Service Center Hub 8 Facilities Planning Summary Flexibility in meeting the needs of the future Balancing routine maintenance with long term functional needs Looking for synergies to enhance efficiency and responsiveness Incorporating sustainable elements Improving work environments for Austin Water employees 9 Building Austin’s water future, together. Water & Wastewater Commission January 14, 2026
