To: BOARD OF SUPERVISORS
From: Solid Waste
Meeting Date: July 21, 2026
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Department Contact: |
Howard Dashiell |
Phone: |
707-463-4363 |
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Department Contact: |
Amber Fisette |
Phone: |
707-463-4363 |
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Item Type: Consent Agenda |
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Time Allocated for Item: N/A |
Agenda Title:
title
Adoption of Resolution Approving First Amendment to BOS Agreement No. 25-074 (Department of Transportation Agreement Number 250026) with SWT Engineering, Inc., in the Amount of $89,960, for Construction Engineering Support Services for South Coast Landfill Final Closure (Gualala Area)
End
Recommended Action/Motion:
recommendation
Adopt Resolution approving first amendment to BOS Agreement No. 25-074 (Department of Transportation Agreement Number 250026) with SWT Engineering, Inc., in the amount of $89,960, for construction engineering support services for South Coast Landfill final closure (Gualala Area); and authorize Chair to sign same.
End
Previous Board/Board Committee Actions:
By Resolution Number (No.) 11-170 (December 6, 2011), the Board of Supervisors (BOS) approved Department of Transportation (DOT) Agreement No. 110087 (BOS Agreement No. 11-151), with SWT Engineering, Inc. (SWT), for preparation of construction plans, specifications and estimates for the final closure of South Coast Landfill (SCLF). By Resolution No. 16-055 (May 3, 2016), the BOS approved DOT Agreement No. 160046 (BOS Agreement No. 16-019), with SWT for design modifications and updating of the Final Closure Post Closure Maintenance Plan (FCPCMP) and Report of Waste Discharge (ROWD) for SCLF. By Resolution No. 25-102 (June 3, 2025), the BOS approved DOT Agreement No. 250026 (BOS Agreement No. 25-074) with SWT, in the amount of $66,868, for Construction Engineering Support Services for South Coast Landfill Final Closure.
Summary of Request:
Construction of the final closure of the South Coast Landfill began in April 2026 under contract with Rege Construction of Cloverdale, California. SWT Engineering, Inc., the Engineer of Record, prepared the construction plans and specifications and is currently providing construction engineering support services under BOS Agreement No. 25-074 / DOT Agreement No. 250026. Construction is progressing well; however, landfill-closure work is inherently variable, and unforeseen issues have arisen that require additional engineering effort and resources beyond the original scope of the Agreement. As grading has advanced, crews have encountered differing limits of refuse, interim cover thicknesses, and waste elevations that vary from those assumed during design, along with suspended leachate pockets that required engineering direction to safely capture and drain to the site’s leachate tanks. These conditions are common in older landfills and often necessitate additional site visits, field evaluations, and real-time adjustments to final grades, drainage features, and cover system components to maintain compliance with regulatory requirements and the approved closure design. Amendment 1 to BOS Agreement No. 25-074 / DOT Agreement No. 250026 provides the additional engineering support services needed from SWT Engineering to address these field-driven adjustments and support successful completion of the landfill’s final closure.
Alternative Action/Motion:
Do not approve Amendment and provide direction to staff as appropriate.
Strategic Plan Priority Designation: A Safe and Healthy County
Supervisorial District: District 5
Vote Requirement: Majority
Supplemental Information Available Online At: N/A
Fiscal Details:
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source of funding: 4511 |
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current f/y cost: $89,960 |
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budget clarification: Funds are available in landfill closure fund to cover the entire cost of Agreement. |
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annual recurring cost: N/A |
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budgeted in current f/y (if no, please describe): Yes |
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revenue agreement: No |
AGREEMENT/RESOLUTION/ORDINANCE APPROVED BY COUNTY COUNSEL: Yes
CEO Liaison: Steve Dunnicliff, Deputy CEO
CEO Review: Yes
CEO Comments:
FOR COB USE ONLY
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Executed By: Atlas Pearson, Senior Deputy Clerk |
Final Status: Adopted |
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Date: July 21, 2026 |
Executed Item Type: Resolution |
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Number: 26-123 |
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Executed Item Type: Agreement |
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Number: 25-074-A1 |
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