Each module is presented with approach, tools and deliverables.
Service pillar 01
Impact Assessment, Contaminated Land & Site Remediation
ESAC supports clients from early environmental due diligence through investigation, risk review, remediation planning and validation—helping projects move forward with confidence and regulatory clarity.
ApprovalsInvestigationRemediationValidation
Copy is written for clients, partners and project stakeholders.
The service is backed by specialist ESAC teams working in coordination.
Service architecture
How the pillar is structured.
This service is organised as a group of focused workstreams that can be delivered individually or combined into one integrated programme.
Define scope and prioritiesApply the right tools and evidenceProduce
decision-ready outputsSupport approvals and implementation
Connected divisions
The teams behind delivery.
Clients access one coordinated service while ESAC coordinates the most relevant specialist divisions behind the scenes.
Detailed sub-services
What this service includes, how it is delivered and what clients receive.
Each sub-service below sets out the delivery approach, the typical software or platforms involved, and the outputs clients can expect at the end of the engagement.
01
Environmental screening & scoping
Early-stage environmental due diligence that clarifies project sensitivities, permitting triggers and assessment boundaries before major decisions are locked in.
Approach
We review site context, land use history, receptors, baseline constraints and approval pathways, then structure a scope that is proportionate to project risk and stakeholder expectations.
Typical tools & platforms
ArcGIS ProQGISExcel screening
matricesSurvey123Google Earth
Key deliverables
- Screening memorandum
- Scoping report / ToR inputs
- Constraint mapping pack
- Authority engagement matrix
02
Baseline investigation & conceptual site model
Targeted desk studies and field investigation planning that convert fragmented environmental information into a defensible evidence base.
Approach
Our teams combine record review, site walkovers, sampling strategy design and receptor-pathway analysis to build a conceptual site model that guides the next phase of work.
Typical tools & platforms
ArcGIS ProAutoCADGNSS / survey toolsExcel data
logsLaboratory data tables
Key deliverables
- Desk study report
- Conceptual site model
- Sampling and analysis plan
- Baseline investigation report
03
Impact assessment & mitigation design
Environmental and social impact review that identifies material risks, tests alternatives and translates findings into practical mitigation and monitoring actions.
Approach
We assess construction and operational effects, compare options, coordinate specialist inputs and build a mitigation framework that aligns with approvals and implementation realities.
Typical tools & platforms
Impact matricesGIS overlaysPower BI dashboardsExcel
significance registersCAD figures
Key deliverables
- Impact assessment chapter or report
- Mitigation hierarchy register
- Environmental management measures
- Stakeholder response schedule
04
Contaminated land risk review & remediation planning
Risk-based remediation planning that helps landowners, developers and operators manage liabilities and move sites toward safe, compliant reuse.
Approach
We test source-pathway-receptor linkages, prioritise hotspots, evaluate remediation options and shape implementation strategies that suit time, cost and programme constraints.
Typical tools & platforms
Excel risk modelsConceptual site modelling toolsAutoCAD
layoutsGIS hotspot mappingBoQ calculators
Key deliverables
- Human health / environmental risk review
- Remediation strategy
- Remedial action plan
- Validation and close-out criteria
05
Permitting, supervision & validation
Authority-ready documentation and implementation oversight that keep environmental requirements visible through construction, remediation and close-out.
Approach
We prepare submission packs, support regulator responses, coordinate inspection records and verify that works have been completed against approved criteria.
Typical tools & platforms
Document control workflowsInspection appsPower BI progress
dashboardsExcel submission trackersQA/QC forms
Key deliverables
- Permit / NOC submission pack
- Inspection and supervision records
- Validation report
- Environmental close-out file
Added value
What clients gain by working with ESAC.
This service is designed to create technical depth, clearer approvals pathways and stronger performance visibility across the full project lifecycle.
Approval-ready evidence
Documentation is built to support real authority processes and review cycles.
Risk-based decisions
Technical recommendations are prioritised around material exposure, feasibility and long-term liability.
Joined-up delivery
Investigation, remediation, biodiversity and water interfaces can be managed under one service structure.
Clear implementation pathway
Outputs are designed to move from study to contractor action and validation with less friction.
Where this service is applied
Representative programme contexts.
Examples of the environments where this pillar helps clients move more confidently from planning into delivery, compliance and long-term performance.
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Industrial and logistics land
Environmental investigations, remediation planning and validation for operational and legacy sites.
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Infrastructure corridors
Screening, baseline studies and authority packages for linear and utility projects.
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Urban development and redevelopment
Due diligence and contaminated-land strategy for projects entering planning, design or construction phases.
Explore related pillars
See how this service connects to the wider ESAC platform.
Many client programmes require neighbouring technical, governance and digital capabilities. The related service pillars below show where additional value can be integrated.