Item 04 - Williamson Creek Wastewater Interceptor Engineering Services Amendment — original pdf

Backup

Item 4 Water & Wastewater Commission: January 14, 2026 Council: January 22, 2026 Posting Language ..Title Recommend approval to authorize an amendment to the contract for engineering services for the Williamson Creek Wastewater Interceptor for Austin Water with CAS Consulting and Services, Inc., in the amount of $7,443,884 for a revised total contract amount not to exceed $14,490,600. Funding: $7,443,884 is available in the 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 was previously awarded in compliance with City Code 2-9B (Minority-Owned and Women- Owned Business Enterprise Procurement Program). Current participation to date is 70.14% MBE and 6.24% WBE. Prior Council Action: May 30, 2024 – Council approved an amendment for additional services to the professional services agreement with CAS Consulting and Services, Inc., for the Williamson Creek Wastewater Interceptor. August 8, 2019 – Council approved an amendment for additional services to the professional services agreement with CAS Consulting and Services, Inc., for the Williamson Creek Wastewater Interceptor. August 4, 2016 – Council approved a professional service agreement with CAS Consulting and Services, Inc. for the Williamson Creek Wastewater Interceptor. Council Committee, Boards and Commission Action: January 14, 2026 – To be reviewed by the Water and Wastewater Commission. May 8, 2024 – Recommended by the Water and Wastewater Commission on a 7-0 vote with Commissioners Penn, Angoori, Musgrove and Tuñón Sion absent. July 10, 2019 – Recommended by the Water & Wastewater Commission on a 6-5 vote with Commissioners Turrieta, Michel, and Williams absent, and Commissioners Lee and Penn recusing. July 13, 2016 – Recommended by the Water and Wastewater Commission on a 7-0 vote with Commissioners Blanding, Parker, and Penn absent and Commissioner Turrieta recusing.  Item 4 Water & Wastewater Commission: January 14, 2026 Council: January 22, 2026 Additional Backup Information: This amendment will provide funding for services to perform the construction phase engineering services, specialty inspections, and close-out services for Williamson Creek Wastewater Interceptor project. The previous City Council authorization provided for preliminary, design and bid phase engineering services. Parts of the construction will be in City Parkland. Williamson Creek Greenbelt trails will also be temporarily affected in certain areas along the creek, thus restricting public access and use during that time. All disturbed areas will be restored afterward. This project is specifically for a segment of lower Williamson Creek where the existing sewer interceptor needs to be replaced and upgraded. The project is located within zip codes 78744 and 78745 (Districts 2 and 3).  Item 4 Water & Wastewater Commission: January 14, 2026 Council: January 22, 2026 AUTHORIZATION HISTORY AMOUNT $4,000,000.00 $59,000.00 $2,400,995.53 $586,720.97 $7,443,883.85 $14,490,600.40 DATE 08/04/16 08/04/16 08/08/19 05/30/24 01/22/26 Total Contract Authorization DESCRIPTION (Council) – Professional Engineering Services (Administrative Authority) – Professional Engineering Services (Council) – Professional Engineering Services (Council) – Professional Engineering Services Proposed (Council) – Construction Design Services CONTRACT HISTORY AMOUNT $1,103,443.00 $6,494.23 $1,685,691.23 $3,525,711.52 $83,071.44 $55,584.11 $586,720.97 $7,443,883.85 $14,490,600.40 DATE 10/26/16 11/08/18 11/14/18 12/03/19 10/08/21 10/26/23 05/30/24 Proposed Total Contract History DESCRIPTION Preliminary Engineering Report SA #1 – Additional Design Services SA #2 – 30% Design Services SA #3 – Design and Bidding Phase Services SA #4 – Additional Design Services SA #5 – Additional Design Services SA #6 – Additional Design Services through Award SA #7 – Construction Design Services City of Austin Council Meeting Backup: January 22, 2026 Item 04 Water and Wastewater Commission: January 14, 2026 File ID: 26-2796 M/WBE Summary Participation goals stated in the original approved compliance plan for the agreement were 3.90% African American; 9.70% Hispanic; 52.60% Native/Asian American; and 15.80% WBE. Participation for this amendment: NON M/WBE TOTAL – PRIME CAS Consulting and Services, Inc., Austin, TX MBE TOTAL – SUBCONSULTANTS $4,253,891.83 $4,253,891.83 62.14% 62.14% $177,899.75 2.60% African American Subtotal (FB) RJW Operations Inc / Roberta Jackson Agency or Group Solutions RJW, Austin, TX (Advertising/Public Relations) $8,343.38 $8,343.38 Hispanic Subtotal (MH) Garcia Design, Inc., Austin, TX $58,915.86 (Landscape Architecture) $58,915.86 Native/Asian American Subtotal (MA) Encotech Engineering Consultants, Inc., Austin, TX (MA) HVJ South Central Texas – M&J, Inc., Austin, TX (Engineering Consulting) (Structural Engineering WBE TOTAL – SUBCONSULTANTS (FA) Baer Engineering and Environmental Consulting, Inc. (FW) Jose I Guerra Inc./Guerra Engineering, Austin, TX (Environmental Consulting) (Structural Engineering) NON M/WBE TOTAL – SUBCONSULTANT Amelia Lopez Consulting LLC, Rockport, TX Black & Veatch, Austin, TX CP&Y Inc/STV Infrastructure, Austin, TX David D Agee/Agee Engineering LLC, Wimberley, TX Holt Engineering Inc., Austin, TX HVJ Associates Inc., Austin, TX Jose I Guerra, Inc./Jose I Guerra, Inc., Austin, TX Macias & Associates LP, Austin, TX Plauche International Inc., Austin, TX Smith Turrieta, PLLC/Smith Turrieta Engineering, Austin, TX Stantec Consulting Services Inc., Austin, TX (Permitting & Real Estate) (Tunnels, Geological Engineering) (General Civil Engineering) (Engineering, Odor and Corrosion Control) (Civil Engineering, Lab & Field Testing) (Engineering Consulting) (Structural Engineering) (Surveying Services, Drafting Services) (Water and Wastewater Facilities Design Services) (Civil Engineering) (Environmental Consulting) 0.12% 0.12% 0.86% 0.86% 1.62% 1.49% 0.13% 2.06% 1.75% $110,640.51 $102,326.84 $8,313.67 $140,801.54 $119,781.43 $21,020.11 0.31% $2,273,513.07 $34,940.07 $607,486.14 $410,400.07 $12,484.00 33.20% 0.51% 8.87% 5.99% 0.18% $240,307.40 3.51% $59,005.94 $70,032.64 $571,149.89 0.86% 1.02% 8.34% $112,028.42 1.64% $73,127.21 1.07% $82,551.29 1.21% Page 1 of 2 City of Austin Council Meeting Backup: January 22, 2026 Item 04 Water and Wastewater Commission: January 14, 2026 File ID: 26-2796 Overall participation based on expenditure for the entire project as of December 9, 2025 (not including this amendment): PRIME: 0.00% Non M/WBE SUBCONSULTANTS: 0.98% African American;5.35% Hispanic; 1.61% Native/Asian American; 6.24% WBE; and 23.62% Non M/WBE TOTAL: 0.98% African American; 5.35% Hispanic; 63.81% Native/Asian American; 6.24% WBE; and 23.62% Non M/WBE Page 2 of 2