New Bedford Harbor Superfund Site
Upper Harbor Remedial Dredge Plan Design
Under Sole Source Contract W912WJ-18-C-0003, Lally Consulting LLC (Lally LLC) provided sediment remediation technical guidance at the New Bedford Harbor Superfund Site, including design of numerous contract drawings and dredge management unit plans.
Applying recommended precision dredging technologies and methods to the project Lally LLC was requested by the USACE and USEPA to develop contract dredge plans for multiple management units in the Upper Harbor to be executed under concurrent remedial dredging contracts with different dredging contractors.
For USACE-NAE Remedial Dredging Contract W912WJ-15-D-0001, Lally LLC was requested to assess sediment quality, design dredge plans, and prepare contract drawings and electronic dredge files for areas across the lower third of the Upper Harbor.
How we Helped
Specific Dredge Design work executed by Lally LLC in these areas included;
- Field investigations.
- Assess quality of historic core data.
- Develop Data Gap Sampling Plan for several areas and Management Units.
- Review Field Sampling Plan.
- Normalize and apply Data Quality Objectives (DQOs) to core data.
- Perform Geostatistical analysis (Kriging) of data in GIS.
- Develop contaminant inventory of lower Upper Harbor Management Units for LHCC Disposal applying bounding criteria and input from USEPA and USACE.
- Develop Dredge Prism, Dredge Plan and Section View Drawings in AutoCAD Civil 3D, associated drawings and linework, and points files for remediation of several subtidal Management Units.
- Review Dredge Plans with and provide electronic Dredge Prism files to the Marine Remediation Contractors.
- Monitor project Dredging Accuracy Performance, Production, Verification and Confirmatory sampling results.
- Conduct field visits with USACE and Contractors to assess dredging operations.
- Develop calculations of Mean Total PCB concentrations by interval and area using GIS zonal statistics for LHCC CAD cell management.
Related Projects
Services Provided
Field Investigations
Sampling and Analysis Plan
Geostatistical Analysis
Dredge Plan Development
Contracting Support
Construction Oversight
Quality Assurance and Performance Review
Location
Massachusetts, USA
Period
2017 – 2020
Over our many years of work for the USACE on the New Bedford Harbor Superfund Site, under every contract Lally Consulting LLC has received the highest Contractor Performance Assessment Reporting Systems (CPARS) rating of Exceptional.
For its work under USACE Contract W912WJ-18-C-0003, Lally Consulting LLC was nominated by the NBHSS Project Leadership and selected by an awards panel of EPA representatives from across the Agency as the 2020 national recipient of the USEPA Administrator’s Award for Outstanding Accomplishments by a Small Business Contractor.