Title
Staff report for a City of San Leandro City Council Resolution to Authorize the City Manager to Execute a $2,670,000 Consulting Services Agreement with Leland Environmental Solutions Corporation for Remediation of Soil at the Water Pollution Control Plant, Project 2015.0300; to Authorize the City Manager to Negotiate and Approve Contract Amendments Up to 10% (or $267,000) of the Original Contract Amount; and to Appropriate $500,000 for the Project in Fiscal Year 2020-2021
Staffreport
SUMMARY AND RECOMMENDATIONS
Authorizes a contract for design and furnishing materials to remediate stockpiled soil at the Water Pollution Control Plant (WPCP) that is proposed for use in transforming the former polishing ponds into a wetland treatment area for WPCP effluent.
Staff recommends:
* execution of the contract with Leland Environmental Solutions Corporation (Leland);
* authorization to approve contract amendments up to 10% of the original contract amount; and
* appropriation of $500,000 from the WPCP Enterprise Fund for the project.
BACKGROUND
The WPCP rehabilitation project, accepted by City Council on May 2, 2016, generated a large volume of soil, most of which was off hauled as part of the original construction project. Approximately 40,000 tons of the dirt generated was found to have higher than expected levels of metal and other contaminants and was stockpiled on site for possible treatment, re-use, or off haul. This dirt was stockpiled because the cost of treatment, re-use, and/or off haul was deemed to be significant enough to warrant competitive bidding of the work.
The City awarded a contract for off haul of the cleanest portion of the material in 2017 but testing performed by the contractor revealed that pesticides were present in some locations and consequently the original disposal site would no longer accept the dirt. The contract for hauling was cancelled and the City began to investigate methods for remediating the entire stockpile so that i...
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