AMEC's approach to brownfields projects is to understand the value of the property to the local community and to ensure that site remediation efforts are consistent with the planned use and perceived value of the property.
Whether we are working with property owners attempting to sell environmentally impaired properties, prospective private developers, or municipal economic development agencies, our goal is to tailor environmental investigations and site remediation to the overall redevelopment plan.
AMEC applies a strong project strategy to address both real and perceived environmental contamination at a property. This strategy is developed in the initial phase of project planning, but is refined as the project proceeds through subsequent phases.
- The components of a typical brownfield project include:
- Initial Project Planning
- Assessing Environmental Liabilities
- Characterizing Environmental Site Conditions
- Assessing Human Health and Ecological Risks
- Risk Management and Options Analysis
Resources are available in-house to support brownfield clients in the following areas:
- Phase I-III Environmental Site Assessments
- Site Specific Risk Assessments
- Human Health Risk Assessment
- Ecological Risk Assessment
- Risk Management - qualitative and quantitative
- Public Consultation
- Risk communication and community relations
- Agency negotiation
- Human and Ecological Toxicology
- Monte Carlo and Micro-exposure Event Modeling
- Surface and ground water monitoring
- Modeling and management
- Site remediation
- Leading edge research / innovative solutions
- Laboratory services.
Biox Bio-Diesel Facility Pier 12, City of Hamilton, Ontario, Canada
When Biox Corporation was looking for a site to build their first full-scale biodiesel facility, they chose a Brownfield site where they had easy access to the utilities and water required for their process. The site in Hamilton, Ontario, Canada is owned by the Hamilton Port Authority and the development was supported by the City’s ERASE Program, which provides tax relief and cost recovery for Brownfield developments.. AMEC supported the development of the site from the initial planning and permitting stages through to construction and start-up. Our work included up-front investigation, environmental assessment, permitting and engineering design work, followed by removal of designated substances and demolition of site buildings. AMEC completed the detailed engineering and construction management of the facility and continues to provide support for permit changes and optimization of the process. In April 2007, BIOX completed construction and commissioning of its' first commercial-scale biodiesel production facility in Hamilton, Ontario. This 67 million litre annual capacity plant is one of the largest continuous flow biodiesel production facilities in the world.
Tinnerman Palnut site assessment and remediation
AMEC was retained by the Tinnerman Palnut Engineered Products to conduct an Environmental Site Assessments, Designated Substances management and Site Remediation of a brownfield site in Hamilton, Ontario. The subject site had historically been occupied by several industrial facilities including a bottling company and a scrap metal recycling facility. The subject building had been vacant for several years prior its recent demolition. AMEC provided the following services: Phase I & II Environmental Site Assessment services, an Asbestos Management Plan (prior to demolition), Soil Remediation consisting of dig and haul and desk top site specific risk assessment and finally, providing a Record of Site Condition. Similar to the Biox project, the remediation of this brownfield site is one of a few sites conducted under the City of Hamilton’s Environmental Remediation and Site Enhancement (ERASE) Community Improvement Plan. Tinnerman Palnut will receive reimbursement of $430,000 over ten years from the City of Hamilton through this ERASE redevelopment grant program.
Four Surplus Seaway Authority Properties Investigation & Qualitative Risk Assessment
AMEC was retained by the St. Lawrence Seaway Authority and by Transport Canada as part of a divestiture program of four large surplus properties. The lands were known to be contaminated based on long histories of industrial land use (former railway yards, former pig iron manufacturing facility, area of known impact due to spills of chemicals of concern (PCBs) from unknown industrial sources). The Phase I ESA investigation was designed to address the overall question of the potential contamination of the sites and to estimate types and locations of contamination that may be present. The Phase II ESA evaluated the extent of environmental contaminant issues associated with these sites. The source, nature and extent of contamination affecting soil, sediment (where applicable), surface water (where applicable) and groundwater, was determined. A Qualitative Risk Assessment was conducted to identify the potential health and environmental implications. Risk management, remedial or risk assessment options were considered at each site along with related costs prior to possible future divestiture. A presentation to the public and interested stakeholders (including municipal, regulatory, local industry representatives) of the findings of investigations on the two Port Colborne properties was performed.
Portland South Waterfront Redevelopment Project
AMEC received a prestigious Phoenix Award as one of the nation’s best brownfields redevelopment projects for a project that transformed a contaminated waterfront area in Portland into a thriving residential, commercial and recreation area. Environmental work on the 73-acre South Waterfront Redevelopment Project included: An assessment of the nature, extent and magnitude of contaminants found in the soil and groundwater. Surface capping of areas to prevent human exposure to contaminants. Traditional dig and haul remedial techniques may have precluded redevelopment due to cost. Creation of an innovative bank-stabilization system to prevent erosion from possibly carrying contaminated soils to the Willamette River Dredging and disposal of several thousand cubic yards of river sediment prior to the capping and bank stabilization activities. The contaminated sediments were used beneficially in constructing an embankment for the Portland Airport light rail segment, saving more than $50,000 in disposal costs. Operation of a five-year groundwater-monitoring program. The monitoring confirmed that contaminants were not migrating to the river. The work cleared the way for the transformation of a degraded and underutilized industrial area south of downtown Portland into an upscale residential and commercial area. Today the site features 480 residential units, 40,000 square feet of commercial space, a 74-room hotel, an athletic club, 26,500 square feet of retail and restaurant, an 83-slip marina, public breakwater and 34 acres of public park, streets and open space.
Redevelopment for Home of the Innocents
AMEC received a Phoenix Award in 2004 for a project in Louisville that transformed a contaminated stockyard into a village for abused, neglected and medically fragile children called Home of the Innocents. The 20-acre Bourbon Stock Yard - built 130 years ago for sales of hogs, cattle and other livestock - was considered ideal for a new Home of the Innocents due to its size and nearness to the local children’s hospital. However, sampling revealed the presence of lead, arsenic and asbestos in the soil. AMEC devised a remediation strategy that eliminated costly transportation and disposal of contaminated soil. Under the strategy, an impoundment cell was dug on the east side of the property, away from the proposed site of the children's village. After the bottom of the cell was lined with crushed concrete and geo-textile fabric, 24,000 cubic yards of contaminated soil were deposited there and then topped with geo-textile fabric, and a minimum of four feet of crushed concrete and two feet of clean soil. AMEC oversaw all soil excavation and emplacement, conducted confirmation soil sampling, remediated “hot spots,” and developed a long-term maintenance plan.