Specialist consultancy services across the UK

Specialist consultancy services across the UK in contaminated land assessment, ground engineering, waste management and construction phase monitoring.

Tweedie Evans Consulting Limited are an established consultancy with a strong track record of working in partnership with our clients to provide creative and cost effective solutions to some of the most challenging development sites.

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TEC | Contaminated Land Assessment, Ground Engineering, Waste Management & Construction Phase Monitoring

Contaminated Land

  • Desk Study/ Preliminary Risk Assessments
  • Site Investigation

  • Laboratory Testing

  • Quantitative Risk Assessments (Human Health/ Controlled Waters)

  • Remedial Options Appraisals/ Remediation Strategies

  • Verification

  • UKWIR Site Assessment Reports

  • Expert Witness

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TEC | Contaminated Land Assessment, Ground Engineering, Waste Management & Construction Phase Monitoring

Ground Investigation

  • Hand Augering/ Hand Digging
  • Foundation Exposures
  • Trial Pitting
  • Window/ Dynamic Sampling
  • Cable Percussive, Rotary, Sonic Drilling
  • Soil Infiltration/ Soakaway/ Percolation Testing
  • CBR/ Plate load testing
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TEC | Ground Engineering | Geotechnical Assessments

Ground Engineering (Geotechnical Assessments)

  • Geotechnical Site Appraisals
  • Laboratory Testing
  • Foundations/ Floor Slabs
  • Soil and Rock Slope Stability
  • Settlement Analysis
  • Retaining Structures
  • Ground Improvement Techniques
  • Geological Impact Assessments
  • Subsidence Assessments
  • Soakaway Testing
  • Earthworks
  • Coal/ Metalliferous Mining Risk Assessments 
  • Soluble Rock Risk Assessments
  • Expert Witness 
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TEC | Construction - Environmental Monitoring

Construction - Environmental Monitoring

  • Dust Monitoring
  • Vibration Monitoring
  • Landfill Monitoring
  • Environmental Permit Monitoring
  • Ground Gas/ Groundwater Monitoring
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TEC | Waste Testing and Classification

Waste Testing and Classification

  • WAC Testing
  • Waste Characterisation
  • Materials Management Plans
  • Qualified Person
Read more TEC | Contaminated Land Assessment, Ground Engineering, Waste Management & Construction Phase Monitoring
TEC | Contaminated Land Assessment, Ground Engineering, Waste Management & Construction Phase Monitoring
TEC | Contaminated Land Assessment, Ground Engineering, Waste Management & Construction Phase Monitoring
TEC | Contaminated Land Assessment, Ground Engineering, Waste Management & Construction Phase Monitoring

Testimonials

Strongvox has been pleased to have worked closely with Tweedie Evans for many many years on an exclusive basis; their service has always been prompt, professional, and their findings totally reliable……thus providing everything required to both inform as to the suitability of a land purchase and ensure that the budgeted costs are robust.

Robert Alford, Director, Strongvox Limited

‘Our site in Tonypandy, proved to be heavily constrained and posed challenges particularly in the ground with former mine workings. Engaging TEC to undertake site survey work, research and investigations has given us the information and the confidence to proceed with submitting a planning application to redevelop the site’

Rhi Jenkins, Director of Development & Regeneration at RHA Wales Ltd

‘TEC have a long relationship with BHET and specifically on the Royal Arsenal…. As well as their relationship with Berkeley they have also worked with many of the consultants that interface with them…They are very knowledgeable, responsive and have a very good relationship with Berkeley and can be considered a reliable consultant...’

Dal Hadley, Head of Technical, Berkeley Homes (East Thames) Limited

'Cordage have worked with TEC for many years and have maintained a great relationship throughout. TEC are reliable and consistent throughout all our projects and the staff are great and are always on hand to help! We couldn't fault them here at Cordage and look forward to our working relationship in the future'

Gabriella Roberts, Planning Coordinator, Cordage Group

'PHD have exclusively used TEC for all our Soil Investigation needs, finding them to be extremely accommodating, professional and always willing to help and provide advice whenever needed'

Ben Fletcher, Construction Director, Penenden Heath Developments Limited

Recent projects

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Our Projects TEC | Contaminated Land Assessment, Ground Engineering, Waste Management & Construction Phase Monitoring

Clevedon Marine Lake

A trip down to the seaside! TEC has been working down at Clevedon Marine Lake helping to investigate the condition of the existing roadway and wall, and the underlying ground conditions. Initially, non-intrusive techniques were used, including a GPR survey combined with an endoscope to assess for voiding. This allowed for more targeted intrusive investigation works to minimise disruption in this popular seaside destination.

Our Projects TEC | Contaminated Land Assessment, Ground Engineering, Waste Management & Construction Phase Monitoring

Vivary Park, Taunton

TEC have recently completed a ground investigation in Vivary Park, Taunton Group. The existing bandstand, constructed in the early 1900s, was showing signs of movement causing damage to the walls and ironworks. The ground investigation and assessment focused on establishing the underlying ground profile and remedial designs for the bandstand. Not our usual kind of structure but an enjoyable change to help preserve such a picturesque historical feature.

Our Projects TEC | Contaminated Land Assessment, Ground Engineering, Waste Management & Construction Phase Monitoring

Cookswood, Somerset

One of our on-going favourite sites, TEC has been providing geoenvironmental and geotechnical consultancy for the visionary redevelopment of a former quarry in Cookswood, Somerset since 2017. This unique development is providing luxury, sustainable holiday homes, making use of the beautiful site setting complete with its own mineral lake and woodland glades. TEC has undertaken various works at the site over the years, predominantly looking at the ground conditions and slope stability during each phase of development.