Sites in RI
Sites In RI
home > sites in RI

Addressing Contaminated Sites in Rhode Island
Terrence Gray, P.E. Assistant Director for Air, Waste and Compliance, RI DEM

The Superfund
The federal foundation of the clean up programs
  • National Priorities List: 12 sites in Rhode Island listed
  • Sites Under Assessment:136 sites currently actively being assessed, 324 sites have been considered under the Superfund
Other Clean Up Programs
  • Federal Facilities (about 100 sites)
  • RCRA Corrective Action (2-3 sites)
  • Leaking Underground Tanks (about 300 active sites)
  • State Site Remediation Program (about 300 active sites)
  • Brownfields Program (about 75 active sites)
  • Proactive Assessments And Clean Ups: ready for reuse
  • Reactive: independent proposals for clean up and redevelopment
Goals For Site Clean Up
  • Contaminated sites
  • Properties found to have levels above standards that are being addressed under State authority
The Program Goal is to mitigate risk from contamination.
There are 2 risk scenarios.
  • Scenario 1: residential (unrestricted)
  • Scenario 2: commercial/industrial
The Decision-Making Process on remediation projects is based on the conceptual site model.
  • Nature of contamination
  • Fate and transport
  • Exposure pathways and receptors
Key Policy Issues
  • Quality of site investigations
  • Time for review and response
  • Facilitating effective community involvement
Some Key Technical Issues
  • Vapor intrusion
  • Assessing and managing sediments
  • Addressing contaminated structures & demolition
  • Protective standards for sensitive reuse scenarios
  • Schools
  • Recreation facilities
Superfund Research At Brown
Matching expertise and need-key linkages:
  • Core connections: Research Translation, Community Outreach, Analytical
  • Key research connections: understanding and controlling risks from mixed dust
  • Management strategies for mercury, hexavalent chromium and other metals contamination
  • Understanding and controlling risks from vapors generated from chemical mixtures, particularly MGP
Examples
Providence Pier: hotel, condos, a marina and an 800-car parking garage
[former oil terminal with MGP wastes]

Stone Harbour Condominiums
[former Premier Thread plant, MGP wastes under site extending into harbor]

YMCA And Adelaide Avenue School
[contaminated sites with solid waste fill, landfill gas and dust issues]

Tiverton MGP: 100 residential properties
[MGP wastes used as fill]

Links
Rhode Island Department Of Environmental Management (RIDEM): www.dem.state.ri.us

Rhode Island Department Of Health, Programs And Services: www.health.ri.gov/environment/index.php

Rhode Island Department Of Health, Office Of Environmental Risk Assessment: www.health.ri.gov/environment/risk/index.php


Contact Information
Terrence Gray, P.E. Terry.Gray@dem.ri.gov
Assistant Director For Air, Waste And Compliance For The Rhode Island Department Of Environmental Management
235 Promenade Street
Providence, RI 02908-5767
Co-Director of Core B, Research Translation Core

Robert Vanderslice, Ph.D. BobV@doh.state.ri.us
Chief, Office Of Environmental Health Risk Assessment
3 Capitol Hill, Room 201
Providence, RI 02908-5097
Co-Director of Core B, Research Translation Core