5H Consent - Laserfiche WebLink

Home

File Number: 25-301 layer of the pond. After this is complete, additional fill soil will be imported to bring the level of the pond up to the final height. During the second phase, a liner, a terraced slope with wood chips and additional treatment equipment will be installed. The entire area will then be planted with native plants. The project is split into two phases because the City’s geotechnical advisors recommended filling the pond and then allowing time for settling, which reduces the likelihood of future problems with the liner. In July 2024, the San Francisco Bay Water Quality Resources Control Board issued Order R2-2024-0013, which requires all treatment plants discharging to the San Francisco Bay to reduce nitrogen by about 40% by 2034. The project is the City’s first step toward complying with this order. This project has been supported by three grants: ·Planning and design grant for $538,926 from the San Francisco Bay Restoration Authority with funding from Measure AA; ·Implementation grant for $3,734,489 from the San Francisco Bay Restoration Authority with funding from Measure AA; ·Implementation grant for $2,975,302 from the San Francisco Bay Water Quality Improvement Fund at the US Environmental Protection Agency . Analysis Bids were opened on June 4, 2025, with two bids received, with the lowest bid in the amount of $6,301,000. The pre-bid engineer’s estimate was $4,938,361. There are two bid alternates for demobilization and remobilization in the event the project needs to be paused for weather. These were not included during the consideration of the lowest responsive bid from a responsible bidder; the total for these additive alternates to the bid is $337,500. Staff recommend Council approve the additive alternates through a change order. Staff recommends awarding the contract to the lowest responsible bidder, Odin Environmental Solutions, LLC dba Odin. Staff verified that the contractor holds a valid Contractor’s State License Board license and is registered with the California Department of Industrial Relations. To minimize delays to the project and ensure that the scope of work is adjusted as needed to provide the highest quality project for the City, staff recommend Council authorize change orders up to 10% of the base bid, or $630,100. This is a complex project and there are several areas where costs could be higher than expected: ·The total bid is based in part on unit quantities for soil stockpile, import soil and material in the basin. These quantities were estimated using the best available methodologies, but it is possible they were underestimated. ·Detailed plans are not available for areas that need to be demolished. While unlikely, the Page 2 City of San Leandro Printed on 9/4/2025