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Centredale Manor Restoration Project Superfund Site – Source Area Groundwater Action Area

North Providence, Rhode Island

Services: Investigation, Sediment & Ecosystem, Feasibility Study, Remedial Design, Remedial Action
Clients Served: Attorney, Industrial

Loureiro was retained by legal counsel to provide expert support to a member of the small group of potentially responsible parties. The scope of this engagement was to evaluate the remedial alternatives being considered by EPA and their consultants for the Source Area Groundwater action area and to develop additional alternatives for consideration, if appropriate. This action area is located in the central portion of the “peninsula” on the eastern bank of the Woonasquatucket River. The “peninsula” is currently the location of the Brook Village and the Centredale Manor apartment complexes. Numerous subsurface investigations have been performed and document the presence of dioxin, polychlorinated biphenyls, volatile organic compounds and metals in soil and groundwater at the “peninsula” and in the river sediment adjacent to the “peninsula”.

Loureiro designed and implemented a remedial alternative for this area which had not been previously considered by EPA in the feasibility study. The alternative was evaluated, presented to the EPA, RIDEM, and various local stakeholders and, upon regulatory approval, was implemented as a Time-Critical Removal Action under a negotiated consent order. As part of this high-profile project, Loureiro also assisted the EPA with its community outreach efforts by preparing presentation materials for local residents and surrounding communities as well as participating in public outreach meetings.

As part of Loureiro’s construction efforts, air monitoring and dust suppression measures were implemented to ensure the safety of local residents and the surrounding community. The innovative approach we developed for this TCRA resulted in significant cost savings to the PRP group.


  • Investigation of soil, sediment and groundwater
  • Remedial Alternatives Analysis
  • Removal Action Planning and Design
  • Community Outreach
  • RAWP development and implementation
  • Preparation of EPA QAPP
  • Documented Savings in Excess of $10 million
  • Coordination with EPA, RIDEM, and local officials