Title
Staff Report for a City of San Leandro City Council Resolution to Approve and Authorize the City Manager to Execute a Non-Professional Services Agreement with Denali Water Solutions, LLC for $244,250 for the Water Pollution Control Plant Biosolids Haul 2020-2021 Project and to Appropriate $34,250 from the Water Pollution Control Plant Enterprise Fund Balance Reserve for the Purpose of Hauling Biosolids
Staffreport
SUMMARY AND RECOMMENDATIONS
Staff recommends City Council adopt a Resolution to approve and authorize the City Manager to execute a Non-Professional Services Agreement with Denali Water Solutions, LLC for $244,250 for the Biosolids Haul 2020-2021 project and to appropriate $34,250 from the Water Pollution Control Plant (WPCP) enterprise fund balance reserve.
This project will remove approximately 5,000 tons of biosolids from WPCP drying beds.
ANALYSIS
As part of the wastewater process, biosolids are removed from the wastewater. They are treated in anaerobic digesters and then thickened to about 15% solids concentration. The biosolids are then spread on drying beds to air dry, which generally happens during the summer months. Until recently, the Water Pollution Control Plant had 13 drying beds. However, the solar panel installation and stockpile of construction soil has reduced the drying beds to seven. This causes the biosolids layer in each bed to be thicker and to take longer to dry. As a result, the biosolids that are transported have a higher water content and cost more to haul than dryer biosolids. However, market conditions in the hauling sector have improved and the price per ton to haul biosolids has decreased from when the project was last bid in 2019.
In the future, two drying beds will be returned to service by relocating the stockpiled construction soil and rehabilitating the beds. In addition, WPCP staff plans to explore purchasing equipment to speed the drying process.
This project was competitively bid and received seven qualified bids. Denali Water Solutions, LLC submitted the low bid of $48.85 per ton, totaling $244,250 for 5,000 tons.
Fiscal Impacts
This project will cost the Water Pollution Control Plant Enterprise Fund $244,250. The requested appropriation will cover these costs when combined with other budgeted funds.
Budget Authority
The total Fiscal Year 2020-2021 cost to haul biosolids will be $244,250. $210,000 was appropriated for biosolids hauling in the Fiscal Year 2020-2021 budget. Staff requests City Council approval to appropriate $34,250 from the Water Pollution Control Plant Enterprise fund balance to account 593-51-002-5190 to cover the additional costs.
Attachment
o Non-Professional Services Agreement between the City of San Leandro and Denali Water Solutions, LLC for $244,250 for the Water Pollution Control Plant Biosolids Haul 2020-21
PREPARED BY:
Justin Jenson, Water Pollution Control Plant Manager
Hayes Morehouse, Water Pollution Control Administrative Analyst II