The Project activities would be accomplished through approval of a Removal Action Workplan (RAW) for lead and hydrocarbon-impacted soils at 128 Hurricane Street, Marina Del Rey, California (Site).
Excavation of approximately 260 cy of soil with lead and TPH concentrations above residential screening levels was selected as the removal action. Excavation of soil exceeding residential screening levels will be used for determining extent of the soil removal. Three areas of excavation were identified and are estimated to have approximately 160 cy (215 tons) of impacted soil. Excavation also includes a contingency of an additional 100 cy (135 tons) of impacted soil that could be removed and will be determined during soil confirmation. The total maximum amount of impacted soil to be removed is estimated to be 260 cy (350 tons). A total of 37 truck trips occurring over 2 weeks will be required for excavating and transporting the contaminated soil.
Specific project activities consist of the following:
• Breaking up and removal of buried concrete and wood/construction debris, as well as clearing any existing vegetation (e.g., trees, plants);
• Excavating and stockpiling approximately 260 cy of impacted soil from three excavation areas (depth from 1 to 10 feet below ground surface (bgs));
• Conducting confirmation soil sampling to verify the efficacy of the remedial excavation activities and to verify that soils left in place comply with the conditions necessary for case closure;
• Monitoring ambient particulate matter (PM10) on the Site;
• Implementing dust control measures (e.g., use of water as a suppressant, sheeting beneath and above soil
stockpiles, real-time dust monitor, fence with plastic sheets around the property line), as needed;
• Providing field-based notifications to the South Coast Air Quality Management District (SCAQMD), as required;
• Transporting the stockpiled soil to an appropriately licensed facility; and
• Importing 260 cy of clean certified fill for use as backfill in the excavation.
The Department of Toxic Substances Control (DTSC) utilized information and analysis in the Venice Auxiliary Pumping Plant Draft Environmental Impact Report (DEIR) to support a final determination about the type of environmental document required to be prepared for the Removal Action Workplan for Venice Auxiliary Pumping Plant Project as provided by Sections 15162, 15163, and 15164 of the CEQA Guidelines. The DEIR was adopted by the City of Los Angeles on August 9, 2017. The DEIR evaluated the potential environmental effects of the RAW, specifically the cleanup and haul away of contaminated soils associated with the proposed remediation action of the Site.