Mohawk Tannery Remediation Update – Q4 2025 & Q1 2026

1. Summary of Work Completed

• The Mohawk Tannery project site has undergone a visible transformation from wooded/overgrown conditions to an active construction site.
• The initial site preparation was completed; including clearing vegetation/debris and removing invasive species in work zones, creating access roads, and developing the necessary work zones, including relocating and consolidating asbestos debris.

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• Excavation and relocation of Sludge Area 3 to the containment area.
• The safety systems for both internal worker safety and adjacent neighborhood safety (ie air monitoring stations and erosion control measures) were installed and remain fully operational.
• All construction vehicles now enter and exit via Veterans Memorial Parkway rather than through neighborhood streets.
• The early preparation for the containment system has begun.
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2. Upcoming Work over the Next Quarter

• Continued relocation and consolidation of asbestos debris.
• Demolition and removal of former tannery building foundation (mid–late May). This work will involve heavy equipment and will be louder than typical site activity for a period of time.
• Crews will continue ongoing site maintenance, debris removal and grading refinement of various work areas.
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• Activities will continue for the construction of the underground containment system as well as material handling and preparation for the next phase of remediation.
• Start of installation of the underground secant pile wall.

Anticipated Impacts

• Increased construction visibility & traffic across the site.
• Temporary elevated noise levels during foundation demolition.

Ongoing Mitigation Measures

• Continuous perimeter air monitoring to ensure safe air quality levels.
• Erosion and stormwater controls maintained across the site.
• Construction traffic routed exclusively via Veterans Memorial Parkway.
• The work is conducted exclusively within permitted hours of each zone.

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Pedestrian Bridge

• The City of Nashua has long contemplated the construction of a pedestrian bridge connecting the neighborhoods of Little Florida and Fairmount Heights to Mine Falls Park.
• Blaylock and the City of Nashua have agreed to partner to ensure recreational plans set in the 1970’s finally come to fruition.
• Blaylock has begun preliminary design analysis with various engineers to begin the permitting and eventual construction of the bridge.

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