Arcadis U.S. & PIKA International

Davey Resource Group inventoried and evaluated 105 existing trees on the Frankford Arsenal Area II Remediation site in Philadelphia, helping to minimize potential tree damage during remediation efforts.

Preserving Trees During Site Remediation

Davey Resource Group (DRG) collaborated with the Arcadis U.S., Inc., and PIKA International, Inc., teams to provide arborist services for the Frankford Arsenal Area II Remediation in Philadelphia. The project aimed to remediate lead-contaminated soil at AOC 1 (comprising AOCs 1A, 1B, 1C, and 1D) and 10, as well as polychlorinated biphenyl-contaminated soil at AOC 6. The remediation involved manual removal of contaminated soil, off-site disposal, and replacement with clean fill. DRG’s ISA Certified Arborist conducted an inventory and evaluation of 105 existing trees in the project area, developing a tree protection plan to preserve them during soil remediation.

To minimize potential tree damage, DRG assessed each tree’s species, location, condition, and replacement value. Through discussions with the project team and property owner, a few trees were selected for removal based on conditions, preservation costs, and excavation logistics. About 70 trees were located within or adjacent to proposed soil excavation areas while others were impacted due to the extensive reach of tree roots and equipment access areas. DRG implemented protocols for soil remediation near preserved trees, employing air spade soil excavation, vacuuming of excavated soil, and replacement with suitable soil to safeguard against soil compaction, root severing, and structural damage to trees. The thorough tree inventory and protective measures ensured the successful preservation of valuable trees amidst the remediation efforts.

DRG assessed the species, location, condition, and replacement value of 105 trees on the Frankford Arsenal II Remediation site in Philadelphia.
DRG’s arborists developed a tree protection plan to preserve the trees on-site during soil remediation.
>> Learn more about the DRG Philadelphia team’s work

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