Archived: Departmental Plan 2017 to 2018 supplementary tables, Environment and Climate Change Canada, chapter 3

Status Report on Transformational and Major Crown Projects

Project name

Randle Reef Sediment Remediation Project

Description

Randle Reef is an area of highly contaminated sediment located on the south shore of Hamilton Harbour in the western end of Lake Ontario, and is considered to be the largest and one of the more complex and highly contaminated sediment sites in the Great Lakes. With the remediation of the Sydney Tar Ponds nearing completion, Randle Reef is now the largest polycyclic aromatic hydrocarbon (PAH)-contaminated sediment site in Canada. Sediment remediation is required to reduce the environmental impacts of contaminants, including the polycyclic aromatic hydrocarbons (PAHs) and heavy metals located at this site.

Owing to the long history of contamination (more than 150 years) from multiple sources, it is not possible to apply the polluter pay principle. Instead, a shared responsibility model has been adopted with the Government of Canada, Government of Ontario and the local community, participating equally in the design and implementation of a solution. This legacy site is a priority for remediation in the Hamilton Harbour Remedial Action Plan (RAP) and under the Canada-Ontario Agreement (COA) Respecting the Great Lakes Basin Ecosystem.

The Randle Reef Sediment Remediation project involves the construction of a 6.2-ha engineered containment facility (ECF) over the most highly contaminated sediment, dredging and placement of additional contaminated sediment within the ECF, and in-situ capping and isolation of remaining targeted sediment for a grand total of 695,000 m³ of sediment being managed.

Project outcomes

The objective of the project is to contribute to the improvement of environmental conditions in Hamilton Harbour and to assist in the delisting of the harbour as an Area of Concern. Performance of the remediation project will be measured with a set of indicator studies designed to assess the effectiveness of the sediment remediation project. Indicator studies have been undertaken for the project to establish baseline biological and chemical conditions in the remediation area, and will be used to assess the effectiveness of the project through a comparison with post-remediation conditions. The studies include:

• PAH concentrations and profiles in suspended sediments
• Sediment toxicity and benthic invertebrate community structure
• Incidence of tumours and external abnormalities in wild fish

The Randle Reef Sediment Remediation Project will prevent or reduce the spread of PAH contaminated sediment from the project site into the rest of the harbour. The remediation of Randle Reef will improve water quality and reduce contaminant levels in biota, eventually making it safer to consume fish caught in the harbour. It will also remove current restrictions on navigation and generate economic returns through the creation of valuable port lands.

Industrial benefits

Hamilton Harbour is a 2,150-ha embayment located at the western end of Lake Ontario and connected to the lake by a single ship canal across the sandbar that forms the bay. The Harbour accommodates a commercial port and is considered a major shipping centre. The south shore of the harbour supports the highest concentration of heavy-metal industries (primarily iron and steel) in Canada.

The contaminated sediment targeted for remediation is located at Randle Reef along the south shore of Hamilton Harbour in the vicinity of piers 14, 15 and 16. The ECF will be connected to Pier 15, owned by the Hamilton Port Authority (HPA).

Following project completion, the HPA will develop and operate the surface of the ECF as a marine facility and will be responsible for ongoing monitoring and maintenance. Two thirds of the site may be developed into a marine terminal that will be suitable for ships of Great Lakes Seaway draught, providing access to berths along Pier 15, northwest of Sherman Inlet. The remaining one third of the site will either be maintained as vegetated green space or surfaced with a suitable aggregate material and used as industrial space.

In 2007, a research study by York University revealed that the net benefits (environmental, social and economic) of cleaning up Randle Reef were estimated as $126 million over 25 years. The proposed Randle Reef Contaminated Sediment Remediation Project will further advance the economic competitiveness of the region through expanded port facilities, shoreline redevelopment and the creation of approximately 60 jobs a year over the 8-year life of the project.

Sponsoring department

Environment and Climate Change Canada

Contracting authority

ECF Construction: Public Services and Procurement Canada

Pier 15 Re-construction: Hamilton Port Authority

Participating departments

Not applicable

Prime contractor

ECF Construction: McNally International Inc.

Pier 15 Re-construction: Dean Construction Co. Ltd.

Major subcontractors

ECF Construction: Bermingham Foundation Solutions

Project phase

This project is in the implementation phase. The Canadian Environmental Assessment Agency (CEAA) Comprehensive Study report was signed by the Minister in May 2013. Project implementation agreements between Environment and Climate Change Canada and each of the project funding organizations were signed in September 2013, following which the Department entered into a specified service agreement with Public Services and Procurement Canada (PSPC) to implement the project as the contracting authority. The PSPC’s contract tendering process was initiated towards a construction start in September 2015.

Major milestones

2013-15 - Pre-construction preparations

September 2015 to 2017-18 - Stage 1: ECF Construction

2017-18 to 2019-20 - Stage 2: Dredging and Containment

2019-20 to 2021-22 - Stage 3: Capping and Landscaping

2022-23 to 2036-37 - Post-construction Monitoring/Maintenance

Progress report and explanation of variances

The Treasury Board approved the Randle Reef Sediment Remediation Project on December 13, 2012, with an estimated cost of $138.9 million.

The construction phase of the project is scheduled to be completed in 2022, with post construction monitoring to continue for an additional 15 years to 2037.

This 7 year project will be implemented in a staged approach, and led by Environment and Cliamte Change Canada with PSPC as the contract authority. Legal agreements have been negotiated for cost sharing of the project with Environment and Climate Change Canada, Ontario and the local community each contributing one-third of the project cost.

The anticipated 2014 project start date was delayed as a result of contractor bids for the first stage of the project exceeding cost estimates for this stage. Environment and Climate Change Canada and the project funding partners subsequently evaluated a range of options to advance the project in a manner which will achieve the environmental objectives within available resources. The Minister of the Environment and the project partners have concurred with a plan for a modified project design that would see in-water work begin in September 2015 and Stage 1 construction would be complete in the 2017-18 fiscal year.

The project was successfully tendered in the Spring 2015 and contracts were awarded in July. The first step in Stage 1 was to re-construct an adjacent harbour wall (Pier 15) to enable dredging in this area later in the project. Pier 15 re-construction commenced in September and was completed in early July 2016. The ECF contractor is planning to construct the ECF in two phases in the 2016 and 2017 construction seasons.

The contractor began preparations for ECF construction in the Fall 2015; the fabricated steel sheet pilings were delivered to the site in April and May 2016; and pile driving to construct the first half of the ECF began in May. Pile driving was completed in early August following which the contractor began to install tie rods between the inner and outer walls, and to remove the sediment from between the walls and backfill the space with quarry rock for structural strength. Dreging of the sediments from between the walls is expected to be complete in late October and rock backfilling will be finished in December following which construction will shutdown for the winter. Air and water quality have been continuously monitored throughout construction and no problems or exceedances have occurred. Phase 2 of ECF construction is expected to begin in the spring when conditions permit, likely April 2017. The project is currently on schedule and budget.

Tendering for Stage 2, which is the major dredging portion of the project, is expected to be in early 2017 with contracts awarded in the spring dredging would commence in the Spring of 2018.