Approve and authorize the Manager of Procurement to execute Contract Change Order No. 1 to PO5856 with R.J. Gordon Construction, Inc. for $18,000 to complete construction of the Waste Management Unit 2 Drainage System Modification Project, which would increase the total contract amount to $150,000. (No general fund impact) (Davis/Fieseler) 

Approve and authorize the Manager of Procurement to execute Contract Change Order No. 1 to PO5856 with R.J. Gordon Construction, Inc. for $18,000 to complete construction of the Waste Management Unit 2 Drainage System Modification Project, which would increase the total contract amount to $150,000. 

In June 2025, the Yolo County Central Landfill (Landfill) was issued new 'Waste Discharge Requirements' (one of the Landfill's operating permits) from the Central Valley Regional Water Quality Control Board. This new permit required the Landfill to make a number of modifications to the site's stormwater drainage system, including portions of the system around Waste Managmenet Unit 2.  R.J. Gordon Construction (Contractor) was awarded the contract (PO5856) through a competitive solicitation utilizing the procedures outlined in the California Uniform Public Construction Cost Accounting Act (CUPCCAA). During construction, it was identified that the project design placed the drainage ditch and culvert edge prohibitively close to the edge of a short section of the Landfill's main access road. This would, if constructed, represent a safety risk to Landfill customers. The Landfill engineering team worked with the Contractor to identify the most cost-effective design modification to solve the safety risk posed by the original culvert alignment and prepared a design revision.

The design revision includes extending the culvert further from the roadway into the drainage ditch along the north side of the Landfill and modification of the adjoining ditch that flows from south to north along the western edge of the Landfill. Landfill engineering staff has reviewed Change Order No. 1 to PO5856, including its scope and cost estimate, and recommends approval for the reasons set forth below.  

The additional cost for the construction work described above exceeds the statutory contract change order limits for Public Contract Code section 20137. Changes exceeding the Public Contract Code section 20137 limit would ordinarily require competitive bidding. However, under Graydon v. Pasadena Redevelopment Agency (1980) 104 Cal.App.3d 631, competitive bidding is not required where the Board finds that such bidding would be unavailing and impractical and would not produce any public advantage. For the following reasons, competitive bidding for the additional drainage work in this case would not have produced any public advantage, and it is in the County's and the public's best interest to work with the existing Contractor on the project rather than competitively bid for the limited project changes.

The Waste Management Unit 2 Drainage System Modifications project was solicited through the procedures outlined in the California Uniform Public Construction Cost Accounting Act (CUPCCAA) using the approved CUPCCAA contractor list.  Two bids were received: