File #: 0545-2024    Version: 1
Type: Ordinance Status: Passed
File created: 2/14/2024 In control: Public Utilities & Sustainability Committee
On agenda: 3/25/2024 Final action: 3/27/2024
Title: To authorize the Director of the Department of Public Utilities to modify and increase the contract with Brown and Caldwell for the Southerly Waste Water Treatment Plant Digester Process Expansion Phase Two project; to authorize an amendment to the 2023 Capital Improvement Budget; to authorize the appropriation and transfer of funds from the Sanitary Reserve Fund to the Sanitary-Fresh Water Market Rate Program Fund; and to authorize the appropriation and expenditure of up to $3,011,106.84 from the Sanitary-Fresh Water Market Rate Program Fund to pay for the contract. ($3,011,106.84)
Indexes: MBE Participation, WBE Participation
Attachments: 1. ORD 0545-2024 Accounting Template, 2. ORD 0545-2024 Utilization
This ordinance authorizes the Director of Public Utilities to enter into a planned contract modification for professional engineering services with Brown and Caldwell for professional design services for the SWWTP Digester Process Expansion Phase II project, CIP #650353-100006, in an amount up to $3,011,106.84.

The original contract was for Preliminary Design Services. The preliminary design phase of the contract included a condition assessment of the Acid Phase Digesters (APDs); a phosphorous recovery alternatives evaluation; a fats, oils, and grease (FOG) receiving station evaluation; an organics receiving feasibility evaluation; a comprehensive biogas reuse evaluation; a digestion process intensification and mass balance evaluation; and a site layout investigation. Each of these investigations and evaluations culminated in the production of a Detailed Design Memorandum (DDM) that will drive the ultimate design of this project.
This contract modification is to provide funding for Detailed Design Services which will provide detailed design based on the findings in the DDM, funding for assistance with the development of bid documents, and funding for bidding assistance. This phase of the project also provides funding for two pilot studies (microaeration and Class B equivalency) to help with biogas quality and digestion capacity.
A future modification is anticipated to provide services during construction to provide engineering assistance throughout the construction phase of this project.
The community planning area for this project is 99 - Citywide.
1.1 Amount of additional funds to be expended: $3,011,106.84
Original Contract Amount: $2,504,192.85 (Ord. 1616-2021; PO285966)
Modification #1: $3,011,106.84 (Current)
Modification #2: $2,364,000.00 (Future estimate)
Total: $7,879,29...

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