Title
Resolution authorizing a First Amendment to the Services Agreement with Wastewater Solids Management Company for anaerobic digester cleaning services in an amount not to exceed $97,500, increasing total contract authority to $727,863 and extending the agreement term, and authorizing the City Manager or designee to execute the agreement on behalf of the City.
Body
WHEREAS, the City of South San Francisco (“City”) maintains critical infrastructure assets associated with the wastewater treatment plant such as their digesters and storage tanks; and
WHEREAS, routine proper maintenance of these assets, including cleaning, solids removal, screening, and on-site dewatering of sludges, is essential to preserving reliability, extending equipment service life, and ensuring the long-term dependability of the City’s vital infrastructure systems; and
WHEREAS, a specialized company is required to provide digester dewatering and cleaning services; and
WHEREAS, the City Council previously approved a services agreement with Wastewater Solids Management Company for routine solids removal and dewatering of five (5) Water Quality Control Plan (WQCP) vessels, authorized contract authority of $630,363; and
WHEREAS, following initial cleaning operations, staff inspected the interior of Digester No. 1 and identified an unanticipated industrial coating failure on the interior roof coating; and
WHEREAS, Digester No. 5 contained more material buildup than estimated during bidding; and
WHEREAS, a separate city-contracted industrial coating company performed critical interior roof industrial recoating, generating structural grit blasting, overspray, and debris that impacted the newly cleaned vessel interior; and
WHEREAS, to preserve infrastructure integrity and protect downstream process equipment from damage by abrasive debris, the affected digester requires a general recleaning, secondary solids evacuation, and final high-pressure washdown; and
WHEREAS, Wastewater Solids Management Company holds baseline liability for the vessel handoff sequence, and staff has negotiated a First Amendment to execute this additional work immediately in an amount not to exceed $97,500; and
WHEREAS, this amendment increases the total authorized contract authority to $727,863, with funding included in the City's Fiscal Year 2026-27 proposed budget, of which the City of San Bruno shares a twenty-six percent (26%) cost responsibility.
NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of South San Francisco hereby approves the First Amendment to the Services Agreement with Wastewater Solids Management Company of Lincoln, CA, for anaerobic digester cleaning services in an amount not to exceed $97,500, establishing a revised total authorized contract authority of $727,863, and for a contract term ending June 30, 2027, as shown on Exhibit A attached hereto and incorporated herein.
BE IT FURTHER RESOLVED that the City Manager or designee is hereby authorized to execute the services agreement in substantially the same form as Exhibit A and any other related documents on behalf of the City upon timely submission by Wastewater Solids Management Company of the signed contract and all other documents, subject to approval by the City Attorney.
BE IT FURTHER RESOLVED that the City Manager or designee is authorized to take any action consistent with the intent of the associated Staff Report or this Resolution that does not materially alter the City's obligations hereunder.
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