Explanation
1. BACKGROUND: This legislation authorizes the Director of Public Utilities to modify (Modification No.1) an existing professional engineering services agreement with Black & Veatch Corporation for the Southerly Wastewater Treatment Plant (SWWTP) Biosolids Land Application Facility project, CIP number 650356-100002. The original professional engineering services agreement authorized Black & Veatch, as Design Professional (DP), to provide Preliminary Design Services (Step 1) and Detailed Design Services (Step 2). Modification No. 1 will provide Engineering Services During Construction (Step 3) and additional Detailed Design Services (Step 2).
The City has been working on incinerator upgrade designs to meet a Maximum Achievable Control Technology Standards (MACT) compliance date of March 21, 2016. The City has concluded that it is better to cease operation of the current Southerly Wastewater Treatment Plant (SWWTP) incinerator process and provide alternate means to handle the biosolids that have been historically disposed of by the incinerator process. With this project, the City plans to provide avenues to beneficially re-use biosolids. This project will provide infrastructure to the SWWTP in order to facilitate the maximum beneficial agricultural use of the plant's biosolids by land application including biosolids storage tanks with associated recirculation and pumping equipment, liquid biosolids piping, truck load-out facilities, and an odor control system. This project will also provide piping to pump digested and undigested biosolids cake sludge simultaneously to the cake storage silos, and piping to link the biosolids land application tanks with the dewatering, thickening, and digestion processes. The primary goal of this project is to provide sufficient storage facilities and basic feed piping and pumping by March 21, 2016; thereby, reducing the need to incinerate. After the MACT compliance date, construction of facilities will be comple...
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