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Consent-Community Services # 22.
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| Board of Supervisors |
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| Subject |
| Approve agreement with Regents of the University of California at Davis to provide emission testing and reporting services for the Yolo County Central Landfill Anaerobic Digesters. (No general fund impact) (Echiburu/Yazdani) |
| Recommended Action |
- Award an Agreement in the amount of $132,832, with a term ending March 31, 2021, to Regents of the University of California at Davis to provide emission testing and reporting services for the Yolo County Central Landfill Anaerobic Digesters; and
- Authorize the Chair of the Board to sign the agreement.
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| Strategic Plan Goal(s) |
Operational Excellence
Sustainable Environment |
| Reason for Recommended Action/Background |
Between 2006 and 2015 the Division of Integrated Waste Management (Division) received $322,554 in grant funding from CalRecycle and the California Energy Commission (CEC) for two innovative Anaerobic Composter demonstration projects in collaboration with University of California at Davis. The Anaerobic Composter project utilizes space on an existing landfilled area to create a series of reusable digester cells that recover methane gas for electricity generation while decomposing organic material into compost product. Placing the Anaerobic Composter cells on top of a lined landfill has several advantages. First, the underlying groundwater is better protected and second, by utilizing on-site gas collection facility and other liquid and gas collection piping, the project requires less capital cost, which makes this project more cost effective. After the methane generation and organic material decomposition rates attenuate, the system is operated aerobically to cure the residual decomposed organics, and is excavated to remove the compost, and the cell is reused to receive the next batch of organic waste. The compost is a sellable product that has applications in agriculture and horticulture and can be used as a soil amendment on or off-site.
In September of 2017 the California Regional Water Quality Control Board approved the plans and specifications for the construction of Anaerobic Composter. The construction project was advertised for bidding on January 19, 2018 and on March 9, 2018 three bids were received. The lowest responsive bidder was COMANCO Environmental Corporation. On April 3, 2018, the construction project was awarded to COMANCO Environmental Corporation. The construction started on June 4, 2018, and finished by July 13, 2018, 10 days before the last working day in the contract.
In November of 2017 the Division submitted an application for authority to construct and permit to operate the Anaerobic Composters to Yolo-Solano Air Quality Management District. In December of 2018, the Yolo-Solano Air quality Management District issued the Division the authority to construct permit.
In order for the Division to comply with this permit, specialized equipment and testing services must be provided by a third party. The Division will be utilizing the expert emissions testing services of the University of California at Davis to meet the emissions source testing requirements of this project. |
| Collaborations (including Board advisory groups and external partner agencies) |
| County Counsel has reviewed and approved the proposed Agreement as to form. |
| Competitive Bid Process |
| Due to specialized emissions testing requirement and the required expertise for this project the Regents of University of California at Davis with selected. No RFP or bids were issued for these services. |
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| Fiscal Impact |
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| Source of Funds for this Expenditure |
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Explanation (Expenditure and/or Revenue) |
| Further explanation as needed: |
| The cost of this testing will be paid by the Sanitation Enterprise Fund, which is funded through tipping fees collected at the landfill. There will be no impact to the General Fund. In fiscal year 2019/20 $50,000 has been budget. The balance of the project will be budgeted in fiscal year 2020/2021 |
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