Item 11 - Hornsby Bend Ammonia Removal Engineering Services — original pdf

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Item 11 Water & Wastewater Commission: November 10, 2026 Council: November 19, 2026 Posting Language ..Title Recommend approval to authorize an amendment to the contract for engineering services to improve ammonia treatment process at the Hornsby Bend Biosolids Management Plant for Austin Water with Stantec Consulting Services, Inc., in the amount of $1,658,313 for a revised total contract amount not to exceed $3,775,154. Funding: $1,658,313 is available in the Fiscal Year 2026-2027 Capital Budget of Austin Water. ..Body Lead Department Austin Financial Services. Managing Department Austin Capital Delivery Services. Fiscal Note Funding is available in the Capital Budget of Austin Water. Procurement Language: Contract Amendment. MBE / WBE: This contract will be awarded in compliance with City Code 2-9B (Minority-Owned and Women-Owned Business Enterprise Procurement Program). Current participation to date is 12.29% MBE and 10.61% WBE. Prior Council Action: January 26, 2023 – Council approved an amendment for additional services to the professional services agreement with Stantec Consulting Services, Inc., for the Hornsby Bend BMP Process Ammonia Removal System Facility. November 12, 2020 – Council approved a professional service agreement with Stantec Consulting Services, Inc. for Hornsby Bend BMP Process Ammonia Removal System Facility project. Council Committee, Boards and Commission Action: November 10, 2026 – To be reviewed by the Water and Wastewater Commission. January 18, 2023 - Recommended by the Water and Wastewater Commission on a 6-0 vote, with Commissioner Penn recusing, Commissioners Musgrove and Turrieta absent and two vacancies. October 14, 2020 - Recommended by the Water and Wastewater Commission on a 8-0 vote, with Commissioner Penn recusing and Commissioner Turrieta absent. Additional Backup Information: The Hornsby Bend Biosolids Management Plant and Bird Observatory is located on a 1200-acre site that stretches along 3.5 miles of the Colorado River, approximately eight miles east of downtown Austin. The plant has grown into a nationally recognized, and award-winning biosolids recycling facility and was previously the recipient of a first-place award by the U.S. Environmental Protection Agency (EPA) for its recycling program.  Item 11 Water & Wastewater Commission: November 10, 2026 Council: November 19, 2026 The plant was established in the 1950’s and receives and treats biosolids generated by Austin’s two regional wastewater treatment plants. The treated sludge is recycled into a stable organic product marketed under the trade name Dillo Dirt™. The Ammonia Removal Facility will provide enhanced ammonia and nitrogen treatment to significantly reduce the ammonia and nitrogen levels being treated by the pond system. This item is for the engineering contract amendment including engineering consulting services for the construction phase and initial startup of the proposed Ammonia Removal Facility. These services encompass, but are not limited to, technical support and guidance throughout construction and commissioning of the proposed facility. There will be no impact to the public as all work will be done on City property that is closed to the public. If this Council item is not approved, efforts to reduce ammonia and nitrogen levels will be impacted, with possible environmental implications. This project is located within zip code 78725 (District 2), within the City’s Extraterritorial Jurisdiction.