Projects

Evidence, judgement, outcomes.

Recent commissions for developers, investors, schools and infrastructure clients. Each one starts with an uncertainty and ends with a decision, and often with work the project no longer needed.

Projects

Locations

All 24

Excavator working beside new houses under construction in Tilbrook, Cambridgeshire

Residential

Hotspot beneath the building

Encapsulated by the building footprint.

Tilbrook, Cambridgeshire

Keeping remediation proportionate to a localised hotspot

At a former kennels and cattery in Tilbrook, a localised hotspot sat beneath a proposed building, so site-wide remediation was not justified.

Mining investigation was planned only where it could affect the new school.

Mexborough, South Yorkshire

Targeting mining investigation where it could affect the scheme

A CMRA that separated localised higher-risk areas from the rest of the site, avoiding a site-wide drilling programme.

Coal mining

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Residential

Cleared at desk study

Contamination risk was closed out without a new site investigation.

London

Resolving contamination risk at Phase 1 using existing ground data

A Phase 1 desk study in London used existing ground investigation data to show no further contaminated land work or remediation was needed.

Phase 1 desk study

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Drilling rig on a geotechnical site investigation in Sevenoaks, Kent

Commercial

Groundwater ~2 m below ground

Constrained deeper excavated foundation options.

Sevenoaks, Kent

Determining foundation options before the design depended on them

Shallow foundations were ruled out for a self-storage redevelopment in Sevenoaks. The investigation identified more appropriate options for foundation design.

Site visit within 24 hours of instruction, report within 48.

Staffordshire

Showing the risk was manageable, so the deal could proceed

Environmental due diligence for an industrial acquisition in Staffordshire showed the risk was manageable, so insurance was secured and the purchase went ahead.

Contamination and flood risk were set out for the buyers.

M4 Business Park, Bristol

Pre-acquisition clarity on a business park

Contamination and flood risk put in terms the acquisition team could act on.

The follow-up investigation met planning without unnecessary work.

London

Scoping a Phase 2 to what planning actually required

A Phase 1 assessment for a London redevelopment found low, manageable risk and scoped a targeted Phase 2 to meet planning requirements.

Phase 1 desk study

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Invinity flow-battery project site during BRE 365 soakaway testing

Energy infrastructure

Ahead of programme

Drainage results arrived early, so the SuDS design met its deadline.

United Kingdom

Drainage evidence that kept a national energy storage project on programme

Infiltration evidence for Invinity’s 20.7 MWh flow-battery project, delivered ahead of programme so the SuDS design could be finalised.

Rainwater soakaway and foul drainage were both tested in the same visit.

Kent

Surface and foul drainage tested in one mobilisation

Surface water and foul drainage to ground both confirmed in one visit.

No gas protection or groundwater clean-up was needed.

Manchester

Remediation reduced to clean cover in soft landscaping

A remediation and verification strategy that limited works to a simple clean cover system in soft landscaping.

Remediation

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Residential

Right-sized protection

Gas, vapour and radon protection were specified without over-designing it.

Kensington & Chelsea, London

Gas, vapour and radon protection aligned to the borough

A gas, vapour and radon assessment that set protection to the actual risk and aligned it with RBKC planning requirements.

Soakaway drainage was confirmed as workable for the whole scheme.

Cheltenham

Infiltration drainage confirmed for a 43-home scheme

BRE 365 testing established that infiltration drainage was workable, so the drainage designer could progress without delay.

Six trial pits and 12 probe holes showed what the building sits on.

Heathrow

Exposing existing foundations for the structural model

Existing foundations exposed and recorded so the structural engineer could design on real information.

Sandy gravel drained well, so the drainage layout could be finalised.

Elmbridge, Surrey

Favourable ground confirmed, drainage layout finalised

Infiltration testing at the proposed drainage locations confirmed favourable conditions in sandy gravel.

The contamination risk was low, so planning went ahead without a site investigation.

Hollingbourne, Kent

A rural site cleared for planning at Phase 1

The desk study found a low contamination risk with no further investigation recommended.

Foundation records arrived quickly, keeping the feasibility study moving.

Croydon

Foundations and slabs recorded for a structural redesign

Existing foundations and slabs characterised so the redesign could be assessed on what is actually there.

The council accepted the soakaway drainage design for planning.

Gloucester

A soakaway strategy the planning authority accepted

BRE 365 infiltration testing in Gloucester, reported within days, supported a soakaway strategy the local planning authority accepted.

Soakaway test results were reported on the day of testing.

Orpington, Bromley

A soakaway strategy for Orpington, backed by site evidence

Infiltration testing at the proposed soakaway locations supported the drainage strategy and LPA submission.

The report was ready within five working days of instruction.

Central London

Knowing which liabilities mattered to an office acquisition

Contaminated land and flood risk liabilities identified and put in context for an office acquisition.

Site test results backed the drainage strategy, reported the same day.

Surrey

Soakaway evidence for an LPA-ready SuDS strategy

Infiltration rates at the proposed soakaway locations gave the LPA an evidence-based SuDS strategy.

Tests at each planned soakaway let the engineers finish the drainage design.

Kent

Drainage design unblocked by site-specific evidence

Infiltration potential confirmed at the proposed locations, so the civil engineers could finalise the SuDS design.

The findings fed into planning, clean-up plans and the land valuation.

Kent

A former petrol station, valued and planned with confidence

A Phase 1 that defined the credible contaminant linkages and informed planning, abnormal costs, land valuation and sale strategy.

Phase 1 desk study

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