Contaminated Land Surveys & Risk Management Reporting
Fast, Clear and Compliant Contaminated Land Assessments for Planning and Development
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OK Subsurface GeoSolutions Ltd provides specialist contaminated land surveys, Phase 1 Desk Studies, Preliminary Risk Assessments (PRA) and full risk management reporting to support planning applications, land purchases and onshore development projects of all sizes.
Whether you need a quick-turnaround Phase 1 report for a planning condition, or a full risk assessment strategy to progress a stalled project, we deliver clear, actionable guidance grounded in UK standards including:
BS 10175, BS 5930, Eurocode 7 and LCRM.
How it Works
In three simple simple steps you can have a contaminated land survey and remove your planning approval roadblock.

1. Get Your Quote
Email or call us with your site address and proposed development. We’ll review mapping, planning records and available datasets and provide a fixed-fee quote with no hidden extras.

2. Book Your Survey
Once approved, we begin your Phase 1 Desk Study & PRA. Where required, we also arrange a site walkover to document current conditions, hazards, and potential contaminant sources.

3. Get your Report
Your report is delivered in as little as 5–7 working days, providing a clear risk evaluation, Conceptual Site Model, and all recommendations needed to satisfy your Local Planning Authority.
Every Assessment Follows an Evidence-based Approach Consistent with UK Guidance, Including:
✔ BS 10175 – Investigation of potentially contaminated sites
✔ BS 5930 – Desk study & ground investigation procedures
✔ LCRM – Source–Pathway–Receptor methodology
✔ CLR11 – Principles for phased assessment and remediation decision-making
Planning-Focused Reporting
Our reports are written to satisfy Local Authorities, reducing delays and eliminating unnecessary investigation.
We follow the exact report structure and methodology expected in modern UK Phase 1 studies.
Competitive Fixed Fees
We deliver expertise at highly competitive rates.
Starting at a low fixed fee we only deliver what you require to get the job done.
Simple no-Jargon Client Support
Turning complex geology into clear solutions for safer smarter projects.
Ground Truth | Clear Solutions
Experts
We specialise in contaminated land risk assessment, merging decades of onshore and offshore specialist reporting experience into clear guidance that planners understand.
Clarity & Communication
We translate complex geological and environmental data into decision-ready advice that directly supports your project.
UK Wide
We support clients throughout the UK.
Your report typically includes:
Phase 1 Desk Study & Preliminary Risk Assessment
✓ Review of historical maps, aerial imagery & site history
✓ Review of geology, hydrogeology, hydrology & flood risk
✓ Mining, landfill and ground-gas screening
✓ Environmental database review (regulatory records)
✓ Planning context & sensitive receptor identification
✓ Preliminary Ground Model & Geo-environmental PRA
✓ Conceptual Site Model (Source–Pathway–Receptor)
✓ Qualitative risk ranking (Low / Moderate / High)
✓ Clear, practical next steps
Walkover
or
Site Reconnaissance
✓ Visual evidence of potential contamination
✓ Ground conditions, structures, vegetation & drainage
✓ Potential pollution sources (tanks, waste, staining, asbestos, etc.)
✓ Photographic evidence documenting the site
✓ Interviewing current site users and assessment of current site activities
Recommendations
✓ Clear solutions and risk mitigation options to reduce any outstanding risks to acceptable levels for the client
✓ Offer all options and strategies when supporting clients to reduce any costs
✓ If required, we can provide a targeted, cost-efficient sampling strategy that aligns exactly with the findings of the risk assessment.
Do I Need a Contaminated Land Survey?
You’ve received a planning condition requiring a contamination assessment
You’re developing previously built-on or industrial land (brownfield)
There is made ground, landfill, fuel storage or historical industry nearby
You’re purchasing land and need due diligence
OK GeoSolutions were very helpful and accommodating for investigations that were needed on a large project at short notice. The written results were clear and detailed and any queries explained in the follow up phone call.
I would definitely use again and recommend to clients
Stay Connected with Us For All Of Your
Contaminated Land Surveys & Risk Management Reporting Needs
Ground Truth | Clear Solutions
