Brownfield Redevelopment

Preferred Freezer Brownfield Redevelopment

gzadan — Tue, 15 Aug 2023 16:48:51 +0000

Preferred Freezer Brownfield Redevelopment gzadan Tue, 08/15/2023 - 12:48

Challenge

This 20-acre brownfield site straddled two townships, comprised two parcels separated by a railroad line, was adjacent to wetlands, and had been used for chemical manufacture and storage for 85 years. GZA was retained to close this complex New Jersey Industrial Site Recovery Act (ISRA) case which had been initiated prior to our clients�� involvement.

Solution

GZA’s broad range of services began with due diligence and have included a Phase I Environmental Site Assessment (including groundwater investigation and monitoring well installation), Brownfield Designation Services (including a remediation cost estimate), site/civil work, a Redevelopment Plan, extensive permitting with numerous entities, geotechnical investigation, a wetlands survey, a pre-demolition asbestos-containing materials (ACM) survey and Hazardous Materials Inventory (HMI), environmental support during construction (including assessment of excavated soils for disposal and remediation), UST removal, and a Remedial Action Workplan. GZA closed out one ISRA case and established soil institutional controls, allowing development to proceed. Both parcels were redeveloped as freezer facilities.

GZA subsequently completed surface water, sediment, porewater, and toxicity sampling to evaluate potential historical impacts to the adjacent tributary from the former chemical manufacturer. Evaluation of potential surface water and sediment impacts is on-going.

Benefit

GZA’s multi-disciplinary team developed effective solutions for the client at every stage of the property transaction and development and continues to effectively address regulatory and compliance obligations at the site.

Assisted client during due diligence, redevelopment, and subdivision of brownfield site
NJ ISRA case successfully closed
Environmental, land use permitting, geotechnical, hazardous materials
��Ϸ��tlands delineation
Construction oversight
Surface water sampling, sediment sampling, porewater sampling, toxicity study, and background evaluation
Groundwater monitoring ongoing

Buildings & Real Estate Development

Land Use and Environmental Planning

Construction Management

Prior Crossings - Housing for Homeless Youth

gzadan — Thu, 13 Apr 2023 16:43:35 +0000

Prior Crossings - Housing for Homeless Youth gzadan Thu, 04/13/2023 - 12:43

Challenge

Beacon Interfaith Housing Collaborative (BIHC) sought to redevelop a brownfield into a five-story apartment building for homeless youth. Extensive soil contamination and asbestos were identified onsite. BIHC utilized the Metropolitan Council’s Transit-Oriented Development (TOD) Grant program to secure the needed funding to complete the Prior Crossing redevelopment. The TOD program maximizes connections amongst housing, jobs, services, transit, and regional amenities such as parks, trails and cultural centers. It also supposes dense, diverse development that emphasizes pedestrian activity and increases transit ridership and multimodal transportation.

Solution

GZA completed a pre-demolition hazardous building materials survey on the existing building and oversaw abatement of all friable asbestos containing materials prior to demolition. In addition, GZA prepared a Response Action Plan and Construction Contingency Plan to properly handle and dispose of PAH-contaminated soils encountered during redevelopment of the property. GZA oversaw the design and installation of a vapor mitigation system beneath the building to proactively reduce the risk of organic vapor intrusion to the building occupants. GZA also oversaw the excavation of approximately 8,443 tons of PAH-contaminated soils and debris to a permitted industrial landfill.

Benefit

The environmental cleanup achieved the approvals the MPCA Voluntary Investigation and Cleanup program. Due to the cleanup, the site was issued a No Further Action Determination letter for soil on January 18, 2017. In September 2016, the building opened its doors to 44 previously homeless youth. Over the first four months, 43 of those youth remained stably housed. Eighty-nine percent were either employed, enrolled in school, or actively seeking employment.

Provided initial investigation, design, and construction phase services for this residential redevelopment project
Leveraged TOD grant funding
Provided oversight and testing of several phases of construction, including demolition services and excavation and disposal of approximately 8,443 tons of contaminated soil during redevelopment
Designed and installed a vapor mitigation system beneath the building to reduce the risk of vapor intrusion
Managed extensive cleanup resulting in No Further Action determination

Institutional

Site / Civil Engineering & Design

Land Use and Environmental Planning

Construction Management

Solhaus Residential Development, Former Gopher Oil Site

gzadan — Tue, 16 Aug 2022 18:08:50 +0000

Solhaus Residential Development, Former Gopher Oil Site gzadan Tue, 08/16/2022 - 14:08

On behalf of Solhaus Associates, Vieau/GZA obtained funding through State and County cleanup grant programs to facilitate redevelopment of the Gopher Oil Superfund Site, a former bulk petroleum storage facility. Vieau/GZA worked cooperatively with project stakeholders to develop a cleanup strategy to address petroleum- and PCB-contaminated soil and groundwater. This award-winning development broke ground in October 2010 and was completed on time and on budget for occupancy in September 2011, prior to the start of the school year.

Challenge

The property had heavily contaminated soil and groundwater across the entire 0.48-acre site. The property was a small, triangular parcel that needed to be excavated two-feet below groundwater and backfilled with clean soil to facilitate residential redevelopment. Due to the depth of excavation and concerns regarding structural integrity of surrounding buildings and roadways, additional precautions had to be in place to facilitate the redevelopment.

Solution

In order to protect the adjoining roadways and apartment building, piles and shoring were driven along the property boundaries so the entire parcel could be excavated to a depth of 20-feet below ground surface. Trucks had to be decontaminated onsite before they were allowed to leave the site. Vieau/GZA staff managed the excavation and handling of contaminated soils and directed the disposal of over 19,000 tons of petroleum-contaminated soil, and 17 tons of PCB hazardous waste to permitted industrial landfills, alleviating a continuing source of contamination to groundwater. In addition, Vieau/GZA directed and oversaw the installation of a dewatering treatment system for thousands of gallons of contaminated groundwater for permitted discharge into the sanitary sewer system.

Benefit

Vieau/GZA worked with three separate Minnesota Pollution Control Agency (MPCA) programs, Superfund, Petroleum Remediation, and Voluntary Investigation and Cleanup, through the course of the redevelopment. Due to the extensive cleanup, the property owner was issued available environmental liability letters and closure letters, and site was delisted from the State Superfund registry. The property was redeveloped with a six-story residential apartment building with underground parking. The redevelopment increased the property value by about 300% and provided much needed housing for the University of Minnesota and helping to revitalize the area for the nearby businesses and the University.

Provided initial investigation, design, and construction phase services for this residential redevelopment project of a former Superfund site
Obtained over $1 million in State and County investigation and cleanup grants
Remediation included excavation and disposal of over 19,000 tons of soil, groundwater treatment, and a vapor mitigation system
Managed extensive cleanup resulting in delisting on the Superfund registry
Awarded a 2012 Minnesota Brownfields ReScape Finalist award and was voted “Best in Real Estate�� by the Minneapolis-St. Paul Business Journal

Environmental Site Investigation & Remediation

Brooklyn Bay Center Development (Remediation/Construction Phase)

gzadan — Fri, 11 Feb 2022 18:47:26 +0000

Brooklyn Bay Center Development (Remediation/Construction Phase) gzadan Fri, 02/11/2022 - 13:47

Awards:

2016 ACEC Diamond Award for Engineering Excellence
2016 ACEC National Recognition Award for Engineering Excellence
2016 New York City Brownfield Cleanup Award for Environmental Protection, NYC
2016 Big Apple Brownfield Award

Challenge

GZA provided environmental design and remediation services for the transformation of an historic landfill on a 10.6-acre peninsula in Lower New York Bay. In the 1970s, a prior owner legally landfilled the peninsula and the peninsula expanded further into the Bay. Prior to redevelopment the Site was a bus garage and maintenance facility with 19 underground storage tanks (USTs). Since the peninsula is within the Coastal Erosion Hazard Area, Superstorm Sandy inundated the Site during the ongoing shoreline stabilization efforts that were part of construction. The redevelopment project required regulatory coordination for both Environmental Restrictive Declarations and E-Designation requirements for Hazardous Materials established under the City Environmental Quality Review (CEQR) and administered by the New York City Office of Environmental Remediation (NYCOER) and New York State Department of Environmental Conservation (NYSDEC) Division of Materials Management (DMM).

Solution

Paramount to the success of this project was a Beneficial Use Determination (BUD) approval allowing the Developer to process solid waste resulting in a “cut and fill�� project. Prior to solid waste excavation, screening, and processing, GZA managed the careful removal and remediation of 6,000 cubic yards (CY) of significantly impacted solid waste from 17 “hot-spot�� areas. GZA petitioned the NYSDEC to modify the BUD and allow the on-Site crushing and recycling of concrete.

The engineering controls designed by GZA for the newly constructed building include passive methane and hydrogen sulfide monitoring systems, and a passive sub-slab depressurization system (SSDS) that had the ability to turned into an active SSDS, if necessary. Additional engineering controls include a composite cover system with a chemical vapor barrier, comprising building and parking garage foundations, sidewalks, and asphalt/concrete pavement.

GZA prepared and submitted a Final Report and obtained agency approval allowing the Developer to secure a temporary certificate of occupancy (CO) and open the Site and retail building to the public before issuance of a final CO.

Benefit

The project revitalized a dilapidated peninsula into an alluring retail center featuring a park and waterfront esplanade on Lower New York Bay. Moreover, the project incorporated engineering controls into the building and Site development to create a sustainable waterfront retail destination that is protective of human health and the environment.

In all, about 11,500 CY of processed solid waste were beneficially reused, and over 10,000 CY of concrete were recycled from the western plateau to build up the low-lying eastern part of the Site, resulting in a net savings of about $750K in disposal costs to the Developer.

Project highlights included a public waterfront esplanade/park; shoreline restoration following Superstorm Sandy; Site stabilization with riprap/gabion structures; one of the first post-Sandy coastal resiliency projects; beneficial reuse of solid waste/recycled concrete; remediation of 17 hot-spots; closure of 19 underground tanks; characterization and disposal of excess material; Community Air-Monitoring Program (CAMP); and design and installation of engineering controls.

GZA continues to perform Periodic Review Reports (PRR) for submission to NYCOER and NYSDEC as required by the approved Site management Plan (SMP).

Redevelopment of peninsula into retail center/public waterfront esplanade
Decommissioned/closed 19 USTs
Remediated petroleum and arsenic-impacted material
Streamlined delineation sampling
On-site beneficial reuse of existing solid waste saved Client over $1 million in off-site disposal and imported fill costs
NYSDEC coordination and approvals balanced with aggressive redevelopment schedule

Waterfront and Coastal Engineering

Environmental Site Investigation & Remediation

New York State Brownfield Redevelopment

gzadan — Tue, 24 Aug 2021 16:59:02 +0000

New York State Brownfield Redevelopment gzadan Tue, 08/24/2021 - 12:59

Challenge

GZA worked with a major financial institution redeveloping a 61-acre brownfield site into a database center. The long-vacant site had housed a sprawling, former institutional facility with 32 abandoned and derelict buildings, walkways, roads and significantly overgrown landscape areas. The site’s enrollment in the New York State Department of Environmental Conservation (NYSDEC) Brownfield Cleanup Program (BCP) required GZA to meet aggressive scheduling milestones.

Solution

Initial project work included preparation of the NYSDEC BCP application and design and implementation of a fast-track, comprehensive Remedial Investigation (RI). Upon completion of the RI, GZA prepared an Interim Remedial Measures (IRM) Workplan to allow Site remediation/development to begin prior to development of a site-wide remedial action. A site-wide Remedial Action Workplan (RAWP) was then developed and progressed through the NYSDEC review/public comment period. GZA performed IRM remediation oversight, clearing sources for soil import and facilities for soil disposal, and perimeter air monitoring at the Site. Daily and monthly field reports and air monitoring reports were submitted to NYSDEC. Upon approval of the site-wide RAWP, GZA continued these tasks during the site-wide remedial action. GZA’s Project Manager and field staff participated in frequent communications with the NYSDEC field inspector and the NYSDEC project manager.

Benefit

GZA’s extensive experience with the regulatory requirements of the NYSDEC BCP and its ability to staff a large, fast-track environmental project allowed the client to meet ambitious project milestones and successfully develop the long-abandoned site.

Site enrolled in NYSDEC Brownfield Cleanup Program
Fast-track schedule
Remedial investigation, remedial action, oversight of remedial construction

Buildings & Real Estate Development

Environmental Site Investigation & Remediation

Gerry Street Brownfield Redevelopment

gzadan — Tue, 24 Aug 2021 16:52:39 +0000

Gerry Street Brownfield Redevelopment gzadan Tue, 08/24/2021 - 12:52

The developer of this former pharmaceutical and drum recycling site, comprising two parcels on an approximately 1.5-acre property in Brooklyn’s Williamsburg section, retained GZA to design and oversee remediation of its portion of the site. A seven-story residential development was planned. Remediation of chlorinated solvents in groundwater throughout the site was being completed by the Responsible Party under oversight of the New York State Department of Environmental Conservation Voluntary Cleanup Program (NYSDEC VCP). GZA’s client’s portion, “former Site D�� (approximately .7 acres), contained several buildings E-designated by New York City Office of Environmental Remediation (NYC OER) for hazardous materials and air quality; historic fill materials were characterized by polycyclic aromatic hydrocarbons (PAHs) and metals.

Challenge

The NYSDEC would maintain regulatory oversight of groundwater remediation being completed by others on our client’s portion of the site. NYSDEC also retained oversight of soil remediation while NYC OER retained responsibility for the noise and air E-designation.

Solution

GZA met with the Responsible Party and NYSDEC to clarify our client’s role in groundwater remediation and conducted Phase I/Phase II Environmental Site Investigations. GZA completed remedial design and oversaw remedial activities including soil characterization/disposal; support of excavation; design and permitting of a dewatering system; design and installation of a waterproof vapor barrier and engineered remedial cap; and perimeter air monitoring. Noting the shallow water table on the development site, GZA recommended a waterproof soil vapor barrier, rather than a sub-slab depressurization system, to address air quality in the new building.

Benefit

GZA’s experience with state and local brownfield regulatory programs and effective collaboration with stakeholders helped the client navigate remediation of this complex site and complete the development as planned.

EPA Brownfields Grant
Brownfield site subject to both the NYSDEC’s Voluntary Cleanup Program and NYC OER
E-designation program
Historic fill characterized by PAHs and metals
Mercury contaminated soils related to former pharmaceutical operations
Chlorinated solvent contaminated soil and groundwater related to former drum recycling company
Responsible Party remediating chlorinated solvents in groundwater on client’s site
Remedial design and oversight
Support of excavation, dewatering, underpinning

Buildings & Real Estate Development

Environmental Site Investigation & Remediation

Remedial Investigation/Remedial Action, Former MGP Site on Tidal River

Anonymous — Thu, 26 Sep 2019 18:52:11 +0000

Remedial Investigation/Remedial Action, Former MGP Site on Tidal River Anonymous Thu, 09/26/2019 - 14:52

Challenge

GZA was selected to complete the delineation and present remedial alternatives to achieve closure at a site impacted by a former Manufactured Gas Plant (MGP). The site, in a densely populated area adjacent to a tidal river, required strong environmental and geotechnical engineering, as well as regulatory expertise.

Solution

After delineating the extent of impacted soil, sediment, and groundwater, GZA used probabilistic cost estimating to present several remedial alternatives to our client. The client elected to excavate and thermally treat impacted soil and debris to limit future risk exposure. This alternative presented a number of technical challenges which GZA successfully addressed: removing impacted soil from as deep as 21 feet below grade in sandy soil immediately adjacent to a tidally-influenced river with a mean high tide level a few feet below site grade; installing a sheetpile retaining wall behind a 100-year-old masonry wall at the toe of a 25-foot-high, 45% slope while protecting an apartment building within 10 feet of the top of the slope and excavating 15 feet on the downslope side of the sheeting; installing a new steel bulkhead wall to remove impacted sediment and soil along the bank; temporarily by-passing and replacing subgrade and overhead utilities; and preventing on-site migration of contaminated groundwater from an off-site source during dewatering operations. GZA completed an Ecological Risk Assessment to limit sediment removal within the riverbank and obtained numerous federal and state permits. ��Ϸ�� also worked closely with the city on restoration plans for roads, sidewalks, water, sanitary and storm lines. An instrumentation program monitored vibrations and slope movements during construction. GZA also developed a groundwater treatment system conceptual design with discharge via a stormwater outfall to the river and completed an asbestos and lead-based paint survey on two structures proposed for demolition. GZA was the Engineer of Record during the 27-month construction project.

Benefit

GZA met the client’s goal by obtaining an Unrestricted Use Response Action Outcome (RAO) in technically challenging conditions on a waterfront site.

Insights

Urban waterfront setting
Impacted soil and sediment
Extensive coordination with U.S. Army Corps of Engineers, state and local authorities
Geotechnical challenges included steep slopes, excavation support, groundwater control, and riverbank construction
Ecological Risk Assessment
Instrumentation program
Pre-demolition hazardous materials assessment
Engineer of Record
Unrestricted Use RAO

New Jersey

Energy

Geotechnical Engineering Services

Waterfront and Coastal Engineering

Environmental Site Investigation & Remediation

EHS Regulatory Compliance

Manufactured Gas Plant (MGP) Remediation

Alice’s Garden Urban Farm Sustainable Stormwater Management

Anonymous — Thu, 26 Sep 2019 18:04:43 +0000

Alice’s Garden Urban Farm Sustainable Stormwater Management Anonymous Thu, 09/26/2019 - 14:04

Challenge

Alice’s Garden Urban Farm, one of Milwaukee’s largest community gardens, sought a sustainable, safe water source that would reduce the reliance on municipally supplied water for irrigation. GZA designed a rainwater harvesting system and worked with the garden operator, the local non-profit Reflo, and the community to build it within the organization’s limited budget. Water quality was paramount for the crop irrigation and ultimately human consumption.

Solution

GZA’s design diverts stormwater runoff from an adjacent asphalt schoolyard into a bioswale for infiltration, which then discharges to an underground cistern with a capacity exceeding 20,000 gallons. A solar-panel-powered pump allows gardeners to access the harvested rainwater, which is routed through a filtration and disinfection system before use. A GZA engineer helped stretch the project budget by providing supportive design analysis and research via an independent study project as part of her master’s degree. She conducted a water quality risk assessment to affirm that the proposed treatment system would sufficiently mitigate human contact with potential pollutants typically found in urban stormwater runoff. A hydraulic model was also developed to help optimize the water treatment and distribution system. Other project considerations which GZA addressed included protecting existing underground irrigation lines, minimizing disruption to active garden plots, and securing off-site easements for stormwater diversion and collection. To construct the underground cistern, 150+ volunteers assembled over 625 Aquablox^��, a geosynthetic, interlocking tank system product.

Benefit

GZA's engineers were integral to the creative problem solving, deliberate engineering design, and community engagement, which maximized the project budget, not only in the rainwater harvesting system’s construction, but in ongoing water utility bills. The combined effect of projects such as this allow the sustainable management of stormwater and help improve water quality city-wide.

Insights

EPA Brownfields Grant
Green infrastructure
Rainwater harvesting
Bioswale and underground cistern
Off-site stormwater source
Academic collaboration
Hydraulic modeling
Water quality risk assessment
Community engagement
Solar energy
NGO client

Water

Geotechnical Engineering Services

Water Resources

Energy and Sustainability Services

Solar Development at Rose Hill, ��Ϸ��st Kingstown, and University of Rhode Island (URI) Superfund Landfills

Anonymous — Thu, 26 Sep 2019 13:51:15 +0000

Solar Development at Rose Hill, ��Ϸ��st Kingstown, and University of Rhode Island (URI) Superfund Landfills Anonymous Thu, 09/26/2019 - 09:51

Challenge

From permitting to construction completion, this solar development program in partnership with Kearsarge Energy �� design and construction of a solar field atop three previously capped landfills �� presented challenges: as the first project of its type in the state, the permitting process was without precedent; protection of the landfill caps was paramount; and as-built vs. design discrepancies were encountered during construction at one site.

Solution

Drawing upon a successful permitting track record in neighboring states, GZA developed and presented a permitting process to the owners, EPA, and RIDEM, who readily adopted the process for this project. GZA’s geotechnical study for Kearsarge and other stakeholders included a bear capacity analysis and design of the ballast block foundations to maximize the number of solar arrays installed at each landfill while maintaining minimal ground pressure, to protect the landfill cap; this resulted in different-sized ballast blocks specialized for each location. To further protect the cap, GZA used low ground pressure equipment to manage construction activities, advised the contractor on weather/ground condition-related scheduling, and provided input on the design of all the wiring and supporting trays for the above-ground installation. During construction, GZA conducted a crane feasibility analysis for the installation of the transformer, and, when design issues at one site resulted from inaccuracies in the as-built drawings provided, GZA completed necessary stormwater analysis and restoration design to address unexpected erosion after the solar array installation.

Benefit

This project tapped a broad range of GZA’s technical capabilities and benefited from GZA’s stellar reputation with federal, state, and local regulatory agencies, helping move this first-of-its-kind Rhode Island project through the regulatory and construction process on time and under budget, while protecting the integrity of the landfill caps at all times.

Insights

Unprecedented permitting process within Rhode Island
Bearing capacity analysis and ballast foundation design
Protection of Superfund landfill cap was paramount during design and construction
Construction oversight

Rhode Island

Energy

Land Use and Environmental Planning

Geotechnical Engineering Services

EHS Regulatory Compliance

Construction Management

Energy and Sustainability Services

Landing Road Affordable and Supportive Housing Brownfield Redevelopment

Anonymous — Mon, 23 Sep 2019 17:12:46 +0000

Landing Road Affordable and Supportive Housing Brownfield Redevelopment Anonymous Mon, 09/23/2019 - 13:12

Challenge

Bowery Residents�� Committee retained GZA to investigate and remediate environmental contamination of a steeply-sloped, vacant brownfield site redeveloped into a 13-story supportive housing development with subsurface parking. Historic uses at the site included manufactured gas plant-related structures and an engineering research facility. The project was enrolled in the NYC Office of Environmental Remediation (NYC OER) Voluntary Clean-up Program (VCP), an expedited brownfield redevelopment initiative intended to facilitate high-quality clean-ups and developments that benefit the surrounding community and the environment; it was also an E-Designated Site.

Solution

GZA conducted a Phase I Environmental Site Assessment, a Phase II Site Investigation, and a Vapor Encroachment Assessment. Upon discovery of contamination, the project was enrolled in the NYC OER VCP. GZA completed a Remedial Investigation (RI), Remedial Action Workplan (RAWP), and worked with the project architect to design a vapor barrier and subslab depressurization system (SSDS) for the new building.

The discovery of significant, previously unidentified subsurface structures and a leaking 5,000-gallon underground storage tank (UST) during construction added complexity to the project. GZA remediated the contaminated soils associated with the UST and performed the soil assessment after the UST was removed. GZA implemented the Remedial Action proposed in the RAWP under the VCP, conducted a Community Air Monitoring Program (CAMP), and completed hazardous materials removal.

Benefit

GZA not only provided comprehensive environmental services at a highly regulated brownfield site, but nimbly responded to unexpected conditions during construction, minimizing construction delays and budget impacts. The project received the 2019 Big Apple Brownfield Award for Supportive/Affordable Housing.

Insights

EPA Brownfields Grant
NYC OER, Voluntary Clean-up Program
E-Designated Site
Brownfield redevelopment
First project in NYC with both affordable and supportive housing components
U.S. Department of Housing and Urban Development (HUD) funding
SSDS design and installation
Expeditious response to unexpected field findings minimized construction delays
2019 Big Apple Brownfield Award for Supportive/Affordable Housing

New York

Buildings & Real Estate Development

Government

Geotechnical Engineering Services

Environmental Site Investigation & Remediation

EHS Regulatory Compliance

Land Use and Environmental Planning

Brownfield Redevelopment

Preferred Freezer Brownfield Redevelopment

Challenge

Solution

Benefit

Prior Crossings - Housing for Homeless Youth

Challenge

Solution

Benefit

Solhaus Residential Development, Former Gopher Oil Site

Challenge

Solution

Benefit

Brooklyn Bay Center Development (Remediation/Construction Phase)

Challenge

Solution

Benefit

New York State Brownfield Redevelopment

Challenge

Solution

Benefit

Gerry Street Brownfield Redevelopment

Challenge

Solution

Benefit

Remedial Investigation/Remedial Action, Former MGP Site on Tidal River

Challenge

Solution

Benefit

Alice’s Garden Urban Farm Sustainable Stormwater Management

Challenge

Solution

Benefit

Solar Development at Rose Hill, ������Ϸ����st Kingstown, and University of Rhode Island (URI) Superfund Landfills

Challenge

Solution

Benefit

Landing Road Affordable and Supportive Housing Brownfield Redevelopment

Challenge

Solution

Benefit

Solar Development at Rose Hill, ��Ϸ��st Kingstown, and University of Rhode Island (URI) Superfund Landfills