Draft Scope Of Work - USACE Franklin Slag Project - 27 Feb 2025.pdf
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This is a draft Scope of Work document outlining remediation requirements for the former Franklin Slag (MDC) site in Philadelphia, PA, being managed by the U.S. Army Corps of Engineers (USACE) Philadelphia District on behalf of the EPA.
The project involves remediating approximately 70,000 cubic yards of recycling slag containing hazardous levels of lead and RCRA 8 metals at the northeast corner of Castor and Delaware Avenues. Key requirements include: relocating portions of the slag stockpile; on-site treatment with stabilization agents to reduce lead leachability; laboratory testing to confirm non-hazardous classification; excavation and sampling of contaminated underlying soils; transportation and disposal of stabilized materials at an approved landfill; removal of existing concrete structures; backfilling with clean fill; implementation of dust/erosion controls and air monitoring; traffic control planning for road closures; monitoring well work; eight quarters of groundwater sampling; and site restoration. The site is currently secured by chain-link fencing with an HDPE liner cap, with the stockpile covering 80% of the site. Additional workspace includes portions of Castor and Delaware Avenues and 25 feet of adjoining Philadelphia Water Department property.
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Text version
The U.S. Army Corps of Engineers (USACE), Philadelphia District on behalf of the U.S.
Environmental Protection Agency (EPA), has completed a design to remediate the former
Franklin Slag (MDC) site.
The Site is located at the northeast corner of Castor and Delaware Avenues in Philadelphia, PA in an industrial siting. The site consists of approximately 70,000 cubic yards of recycling slag associated with the former Franklin Slag smelting facility. This stockpile is impacted with hazardous levels of lead, and detectable levels of RCRA 8 metal. The site is secured with a chain link fence and the stockpile capped with a HDPE liner.
The stockpile covers over 80% of the site, Castor Ave immediately adjacent to the Site and the shoulder of Delaware Ave, is available for use by the Contractor. Approximately 25 feet of the adjoining Philadelphia Water Department property is available for relocation of a portion of the untreated stockpile or storage of treated material awaiting laboratory analytical results.
Tentative Scope of Work:
• Relocation of portions of slag stockpile to provide suitable working area(s).
• On-site treatment of existing stockpile of smelting slag with a stabilization agent to decrease leachability of lead to be characterized as non-hazardous.
• Laboratory analysis to confirm waste characterization as non-hazardous.
• Excavation of soils beneath the stockpile that exceed clean up levels.
• Confirmatory soil excavation sampling.
• Transport of stabilized slag and soil for disposal at a licensed Resource Conservation and
Recovery Act Subtitle D landfill.
• Removal and off-site disposal of existing concrete slabs and foundations associated with the former MDC aggregate facility.
• Backfill with imported clean fill to meet existing ground surfaces.
• Dust control and erosion control measures.
• Design and implement a perimeter air monitoring program including monitoring of neighboring residential areas.
• Design and implement traffic control and detour plans associated with closure of parts of
Castor and Delaware Avenues.
• Monitoring well abandonment and installation.
• Eight quarters of groundwater sampling and laboratory analytical for RCRA metals.
• Site restoration.
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