Closure & Reclamation

Brownfield Site Closure Planning & Advisory

industrial site transition challenges we help asset management teams navigate

Closure plans are required, but the technical basis explaining how obligations apply to the specific asset remains unclear or inconsistently defined.
Long-term performance of landforms, containment structures, or waste facilities is referenced without explicit assumptions about stability or degradation.
Passive treatment, containment, or source control measures are proposed without clear justification of how performance will be sustained over time.
Cost estimates and schedules are requested before closure assumptions around system behavior, maintenance, and monitoring are agreed.
Monitoring programs are included in closure plans without a clear link to the processes or performance criteria they are meant to verify.

Water Management Infrastructure Engineering and Project Development Services

Defining the technical and regulatory foundation of closure plans

A credible closure plan document demonstrates how obligations apply to the asset, what long-term system behavior is assumed, how performance expectations are defined, and where uncertainty or discretion remains.

Our multi-disciplinary teams focus on establishing this technical and regulatory baseline so closure plans can integrate design, costing, schedules, and implementation pathways on a common basis. Additionally, our teams can support through design, construction, and post-closure monitoring to maintain accountability to the original closure logic.

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Build the closure plan foundation

We can support with each or all of the core elements a closure plan document must integrate, ensuring those elements are coherent, defensible, and aligned.

Define regulatory closure requirements

Interpret permits, approvals, and closure conditions so regulatory expectations are clearly defined for the specific asset context.

Estimate costs and obligations

Develop closure-related cost and obligation estimates based on defined assumptions and performance expectations.

Design closure and reclamation systems

Translate closure logic into system designs, schedules, and implementation pathways suitable for execution by owners or contractors.

Define monitoring and verification

Establish inspection, monitoring, and verification approaches used to demonstrate closure performance over time.

Aligning closure plan inputs across teams

Producing a closure plan requires coordinated input from multiple technical domains. Leveraging our multi-disciplinary experts, we help establish a shared technical basis by making assumptions, performance expectations, and system behavior explicit. This allows specialists to contribute design, costing, and monitoring inputs using consistent logic, supporting regulatory review, financial scrutiny, and future handover without reinterpretation.

Laboratory chemistry, microbiology, and genomics define assumptions around contaminant mobility, attenuation mechanisms, and long-term water quality behaviour that treatment selection, monitoring parameters, and performance criteria are held against.

Passive and enhanced passive treatment, physical containment, source control, and water management infrastructure are evaluated to define how closure performance will be achieved with minimal long-term intervention.

Our civil and structural expertise in landforms, ponds, reservoirs, caps, and control structures informs assumptions around stability, integrity, and maintenance embedded in closure designs and schedules.

Water Treatment Facility Operations and Maintenance Services

Supporting closure performance through long-term accountability

Closure performance is demonstrated over time through monitoring, inspection, and regulatory interaction, not at the point of plan approval. As operators and asset managers ourselves, we understand how plans are applied in practice, how performance is interpreted in the field, and where deviation can emerge. Our teams support ongoing environmental monitoring, regulatory engagement, and remote sensing or telemetry to assess whether observed behavior aligns with closure assumptions, and to inform a quick response should performance begin to diverge.

Climate Resiliency Site Monitoring Water Systems Upgrading

Constructed Wetland Pilot Study for Closure Water Treatment

Mining Water Infrastructure Development and Equipment

Mine Water Treatment Gravel-Bed Bioreactor Design

2-Year Modular Constructed Wetland Pilot for Mine Closure Water Treatment

Integrated Sustainability advanced a passive constructed wetland treatment system through a 2-year pilot, combining controlled off-site testing and on-site trials to refine full-scale mine closure design.

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Tailings Facility Reclamation & Passive Closure with 61,000 m³ Dewatered

Integrated Sustainability delivered turnkey closure construction for a mine tailings facility, dewatering 61,000 m³ and completing backfill, cover placement, spillway construction, and toe berm expansion.

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3,000 m³/d Bioreactor System for Ammonia Removal at a Copper Gold Mine

Integrated Sustainability designed a 3,000 m³/d mine water treatment plant integrating a gravel bed bioreactor and equalization pond for variable flows and long-term closure planning.

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Yes. closure planning supports the development of closure plan documents, including regulatory interpretation, system design inputs, cost estimates, schedules, and monitoring frameworks, grounded in defensible technical logic.

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No. closure planning is biased toward passive treatment, containment, and source control solutions. Where interim active treatment is required, its role, duration, and transition are explicitly defined.

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Closure planning defines closure intent, assumptions, and performance logic. Reclamation Systems Design develops detailed, long-term system configurations to deliver that intent.

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Yes. closure planning is often undertaken during operations to ensure closure plans remain aligned with current conditions and future obligations.

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If closure assumptions, system behaviour, and monitoring logic are already clearly defined and accepted, detailed design or implementation-focused services may be more appropriate.

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Combine deep technical expertise with execution and operational experience

Complex and high-consequence industrial projects require a practical mindset to enable agile development and positive environmental outcomes.

Our vertically integrated water services platform combines science, engineering, equipment fabrication, and operations to provide fit-for-purpose assets that drive accountability and performance.

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