2003 AGN APR 01 I13 - Laserfiche WebLink

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SymBio Treatment Process at Colton WRF March 13, 2003 Page 2 of 2 that is now widely used, Dissolved Oxygen control loops, only observes the oxygen content of water, not the biomass, therefore does not achieve the proven dollar savings of the SymBio process. The City is offered protection from failure due to the money back guarantee if the system does not work. This proposal was presented for recommendation at the March 17 Regular Utilities Commission Meeting. The Commissioners voted it their unanimous support. ALTERNATIVES Take no action and not achieve the energy savings - System capacity will remain at a total flow of 5 mgd. Or the dissolved oxygen control system could be installed, but there would be no guarantee for performance or savings. FINANCIAL IMPACT The turnkey price for the SymBio upgrade project is $199,800. Based on Enviroquip's calculations, the energy savings anticipated after system upgrade to the SymBio process will be about $10,000/month (at $0.10/KWH). Hence, the system has a payback of approximately 20 months. Additional savings will be realized when the hydraulic plant capacity is increased, which will be determined at the end of initial plant operation under SymBio. The funds for this project are available from the Capital Projects- Bond Funds, Account No. 552-8200-8204- 3890-1000. ENVIRONMENTAL IMPACT Integration of the SymBio process will water quality. Enhanced effluent qi discharge of nitrogen compounds to conditions related to the WRF. Of necessary compliance. at the very least maintain the current treatment performance and effluent ality, due to a better controlled biological treatment process and lower he Santa Ana River, will have a positive impact on the environmental course, all regulatory procedures would be adhered to for achieving RECOMMENDATION Staff recommends that the Colton Utility Authority authorize the City Manager to execute the SymBio upgrade project, per proposal from Enviroquip and Saddleback Environmental in an amount not—to-exceed $199,800. Report prepared by: Mike Perales, Assistant Wastewater Utilities Manager MP:csc Attachment: Enviroquip Inc., SymBio� Proposal REVIEW TEAM ONLY City Attorney: .a�1- �•�^( �_ Finance Director. Cy�� L�� City Manager: � � O7HER: