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City of San Leandro <br />City Council <br />Meeting Date: June 2, 2025 <br />Agenda Number: 5.h. <br />Agenda Section: CONSENT CALENDAR <br />File Number: 25-241 <br />File Type: Staff Report <br />Adopt a Resolution to Approve and Authorize the City Manager to Execute a Non-Professional Services <br />Agreement with Synagro-WWT, Inc. for a Not-To-Exceed Amount of $830,000 for Biosolids Hauling from <br />the City’s Water Pollution Control Plant (WPCP) for a Period of Four Years <br /> <br />COUNCIL PRIORITY <br />·Infrastructure <br /> <br />SUMMARY <br /> <br />This biosolids hauling and disposal service will remove approximately 10,000 tons of biosolids <br />from the Water Pollution Control Plant (WPCP) over the next 4 years. The biosolids will be land <br />applied in accordance with all applicable regulations. <br /> <br /> <br />RECOMMENDATIONS <br /> <br />Staff recommends City Council adopt a Resolution to approve and authorize the City Manager to <br />execute a Non-Professional Services Agreement with Synagro-WWT, Inc. for Biosolids Hauling <br />and Disposal Services. <br /> <br /> <br />BACKGROUND <br />As part of the wastewater process, solids are removed from the wastewater. After anaerobic <br />digestion, sludge is thickened to about 14% solids concentration. The sludge is then spread on <br />drying beds to air dry, which generally happens during the summer months. The Water Pollution <br />Control Plant currently has seven drying beds on site. After drying, the biosolids need to be <br />disposed of properly. In this agreement, the biosolids will be land applied, in compliance with all <br />regulations. <br /> <br />Land application for biosolids is regulated by the Environmental Protection Agency (EPA), which <br />sets the required testing and constituent limits the biosolids must meet. The EPA specifies Class <br />A and Class B biosolids, with Class A having stricter microbial limits and broader allowable <br />disposal locations. With sufficient drying, WPCP biosolids can meet Class A biosolids. However, <br />most of the biosolids fall in Class B because of limited drying space. <br /> <br />Analysis <br />Page 1 City of San Leandro Printed on 9/4/2025