Feb 24, 2026 Biosolids Public Meeting

The City of Palo Alto held a public meeting on April 14, 2026, to discuss the long-term biosolids management plan for the Palo Alto Regional Water Quality Control Plant. The meeting focused on evaluating various biosolids treatment alternatives, including on-site and off-site processing options, with detailed analysis of capital and operational costs, environmental impacts, and regulatory compliance. The city presented six alternatives, including continuing current off-site partnerships, mesophilic anaerobic digestion, thermal drying with belts, and drying plus pyrolysis. The baseline and off-site partnership options were found to have the lowest net present value costs, while drying plus pyrolysis showed net negative greenhouse gas emissions but was the most expensive. The city recommended reserving a portion of the Measure E site for potential future biosolids facilities to accommodate regulatory changes and increased sludge production. Public input was incorporated into evaluation criteria, emphasizing cost, environmental, and community impacts. The meeting also addressed potential use of Measure E land as a wildlife corridor and discussed uncertainties related to emerging technologies and future regulations such as PFAS limits. No procurement decisions or contract awards were made during this meeting, but the discussion highlighted the need for continued planning and potential future capital investments in biosolids infrastructure.