AGENDA TITLE:
title
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)
end
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.
body
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 sou...
Click here for full text