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While on the property, all vehicles will maintain slow speeds (e.g., less than 5 miles per hour) for safety purposes and to minimize dust generation. Cleanup/decontamination areas will be established as close as possible to the excavations and consolidation areas to minimize spreading contaminated soil from the work zones. Before exiting the work area, vehicle tires will be inspected and brushed, if necessary, to minimize track out. 5.7 Perimeter Air Monitoring Airborne particulate monitoring will be conducted to verify and document the effectiveness of fugitive dust suppression measures in conformance with SJVAPCD requirements. Perimeter air monitoring stations will be established around the work zones that will monitor upwind and downwind conditions. The Community Air Monitoring Plan will be prepared in accordance with DTSC (2020) guidance and will describe the perimeter air monitoring program, including sampling equipment, monitoring frequency, numeric action levels, and contingency actions. 5.8 Field Variances Variances from the RDIPs will be discussed with DTSC and CVRWQCB prior to any action being taken except for emergencies (when an immediate response is required). DTSC will be notified if an emergency response is implemented. The field variances will be documented in the Remedial Action Completion Report(RACR)prepared for each phase of the remediation. 5.9 Remedial Action Completion Report The RACRs will summarize and present the data collected during the remediation, including: • A description of field activities completed, including summary of the construction schedule and justification for variances from the RDIPs; • As-built site drawings showing excavation locations and final grade of completed covers; • Compilation of supporting information including, but not limited to: ■ Copies of all permits; ■ Daily field reports and health and safety documentation; ■ Description of backfill soil sources, quantities, and characterization data; ■ Compaction test results; ■ Laboratory analytical reports and chain-of-custody records; ■ Air monitoring results; ■ Compilation of other environmental data, as applicable (e.g., soil confirmation samples); • Photographic documentation of the field work; • Summary tables of any off-site waste disposal activities, including waste characterization data and disposal information(e.g., manifests or other shipping records); and Site 47 RAP for Soil 21 October 2023