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Department of <br />Water Boards Toxic Substances <br />Control <br />REMEDIAL ACTION AGREEMENT NOTIFICATION FORM <br />Threatened Receptors: <br />Water Well Surface Waters/Wetland <br />W710ther Lead (Metals) <br />FIResidence ❑ Schools/Daycare <br />SECTION V: PLANNED INVESTIGATION AND REMEDIATION <br />Anticipated investigation type (if known): <br />Groundwater ❑✓ Soil 0✓ Soil Vapor Surface Water Air Quality <br />Anticipated active remediation type (if known): Per Geocon (RP's consultant) Proposal 52170-07-16P dated 3/4/2022 <br />1) Soil assessment (lead on surface) <br />2) Soil vapor assessment <br />3) Interim remediation by excavation of surface layer to remove residual lead <br />4) Post remediation investigation and geotechnical investigation after removal of old storm drain pipe line <br />Anticipated mitigation measures, long term monitoring, & deed restrictions (if known): <br />Interim remediation by excavation <br />Post remediation evaluation <br />Deed Restriction based on residual analyses and future development (affordable income housing) <br />Please describe the cleanup goals defined in the remedial action agreement: <br />7SOII Meet Environmental Screening Levels (ESLs) for Indoor Air as well as outside by way of vapor intrusion, direct exposure <br />or odor, leaching potential to groundwater as proposed by SF Bay RWQCB, as well as any concerns under Low -Threat UST Closure (LTCP) <br />Groundwater As above, and MCLs and PHGs of any contaminants of concern if achievable <br />Page 3 of 4 <br />Published December 10, 2021 Updated December 17, 2021 <br />