Title
Adopt a Resolution to Approve and Authorize the City Manager to Execute a Non-Professional Services Agreement with Synagro-WWT, Inc. for a Not-To-Exceed Amount of $830,000 for Biosolids Hauling from the City's Water Pollution Control Plant (WPCP) for a Period of Four Years
Staffreport
COUNCIL PRIORITY
* Infrastructure
SUMMARY
This biosolids hauling and disposal service will remove approximately 10,000 tons of biosolids from the Water Pollution Control Plant (WPCP) over the next 4 years. The biosolids will be land applied in accordance with all applicable regulations.
RECOMMENDATIONS
Staff recommends City Council adopt a Resolution to approve and authorize the City Manager to execute a Non-Professional Services Agreement with Synagro-WWT, Inc. for Biosolids Hauling and Disposal Services.
BACKGROUND
As part of the wastewater process, solids are removed from the wastewater. After anaerobic digestion, sludge is thickened to about 14% solids concentration. The sludge is then spread on drying beds to air dry, which generally happens during the summer months. The Water Pollution Control Plant currently has seven drying beds on site. After drying, the biosolids need to be disposed of properly. In this agreement, the biosolids will be land applied, in compliance with all regulations.
Land application for biosolids is regulated by the Environmental Protection Agency (EPA), which sets the required testing and constituent limits the biosolids must meet. The EPA specifies Class A and Class B biosolids, with Class A having stricter microbial limits and broader allowable disposal locations. With sufficient drying, WPCP biosolids can meet Class A biosolids. However, most of the biosolids fall in Class B because of limited drying space.
Analysis
On December 12, 2024, the City conducted a formal bid opening for biosolids hauling and disposal services based on price per ton for Class A, Class B biosolids and wet season disposal of Cla...
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