AGENDA TITLE:
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Adopt a Resolution Authorizing Acting City Manager to Execute an Agreement for Professional Services with Civil Hydro Tech, LLC. of Sunnyvale for Lodi Central Plume Source Area and City-Wide PCE/TCE Plume Management Services ($569,255) and Appropriate Funds ($569,255) (PW)
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MEETING DATE:
September 3, 2025
PREPARED BY:
Public Works Director
recommendation
RECOMMENDED ACTION:
Adopt a resolution authorizing Acting City Manager to execute an agreement for environmental professional services with Civil Hydro Tech, LLC. of Sunnyvale for Lodi Central Plume Source Area and City-Wide PCE/TCE Plume Management Services $569,255, and appropriate funds in the amount of $569,255.
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BACKGROUND INFORMATION:
For over 20 years, the City of Lodi has been involved in the remediation efforts associated with perchloroethylene (PCE) in the Central Plume Source Area (CPSA). The CPSA is generally bound by Pine Street on the North, Oak Street on the South, Church Street on the East, and Pleasant Street on the West. While the City did not cause the soil and groundwater contamination, the City agreed to assume all of the cleanup obligations as part of multiple lawsuit settlements.
The City has operated several PCE extraction projects in the Central Plume area, removing approximately 17,500 pounds of PCE to-date. In 2020, the City’s Soil Vapor Extraction (SVE) system was no longer effectively removing the PCE within the soil beneath the CPSA, and the State’s Water Board approved the removal of the SVE. As part of the approval to remove the SVE, the Water Board required the City to monitor indoor air quality for properties within the CPSA, and remediate any locations with residual PCE indoor air concentrations above the environmental screening levels (ESLs).
As part of the subsequent monitoring, the City found indoor air samples at 212 West Pine Street to be above the ESL. Through additional soil testing, there was determined to be a small source beneath the slab floor at 212 West Pine. After this determination, the City, Civil Hydro Tech (our Consultant), the Water Board, and the Pine Street Partners (the building owners) have met multiple times to determine the appropriate course of action. On July 2, 2025, Council approved plans and specifications related to the remediation of 212 W. Pine St.
City staff has requested Civil Hydro Tech to provide a proposal for environmental consulting and project management services for the CPSA and additional city-wide plume management activities. Attachment 1 provides a generalized description of all remedial measures that are planned to satisfy the directive of the Water Board over the next two years. The ongoing monitoring, assessments, and remedial activities associated with the various Lodi plumes is being requested to remain in compliance with the Cleanup and Abatement Order Number R5-2004-0043, issued to the City by the Water Board in April 22, 2004.
Staff recommends adopting a resolution authorizing Acting City Manager to execute an agreement for environmental professional services with Civil Hydro Tech, LLC. of Sunnyvale for Lodi Central Plume Source Area and City-Wide PCE/TCE Plume Management Services $569,255, and appropriate funds in the amount of $569,255.
STRATEGIC VISION:
8. Public Well-Being.
FISCAL IMPACT:
The ongoing monitoring, assessments, and remedial activities associated with the various Lodi plumes are a directive by the Water Board. Failure to perform could result in a violation(s) or fine(s). This work does not impact the General Fund.
FUNDING AVAILABLE:
Appropriate Funds:
PCE/TCE Rates Fund (56599000.77020): $569,255