GEOTHERMAL & RENEWABLE ENERGY

GeothermalRaeburn Drilling and Geotechnical (Northern) Limited, as part of the Raeburn Group of Com-panies offers the opportunity to complement your development with new technology.Geothermal energy is a virtually unlimited resource, and modern processes have harnessedthe inherent temperature within the Earth, converting it into an economic heating and cool-ing process.For both domestic and industrial situations, geothermal energy offers you the potential toconvert your investment into savings.Working alongside The Raeburn Group of Companies we are at the forefront of this tech -nology. We have specially trained personnel to fulfill not only your drilling requirements butalso provide a full design and installation service. Raeburn have all the necessary expertise to help you benefit from long termcost savings while looking to the future with a clean, adaptable and environmentally friendly energysolution.

Raeburn Drilling and Geotechnical (Northern) Ltd can carryout the following works:

• Geotechnical ground response site testing unit;

• Drilling to depth specified by the design team;

• Flushing the borehole prior to insertion of geothermal loop;

• Pressure grouting the borehole, from the bottom up, using thermal enhanced bentonite grout;

• Pressure-test each individual borehole loop before installation;

• Flow and pressure test each individual borehole loopafter installation and grouting has taken place;

• Capping of all open borehole loops, immediately upon completion;

• Connecting systems as specified in the heat pump schematic drawing supplied bythe design team;

• Pressure and flow testing the complete system upon completion.

A Raeburn Drilling and Geotechnical (Northern) Ltd geothermal engineer would be on site

to supervise all site works from inception to completion. All works would strictly adhere to

and be in accordance with the systems design.

Wind Farms: Onshore and OffshoreRaeburn Drilling and Geotechnical (Northern) Ltd have an experienced and accomplished

team carrying out extensive Geotechnical and Environmental investigations into wind farm

projects, to enable the client to design suitable wind turbine structures. Sites have included

Hill of Balquhindachy; Clochnahill, Stonehaven; Westray, Orkney; Hill of Burns Fyvie, Services

include, but are not limited to:

• Boreholes using Cable Percussive and Rotary methods;

• Geotechnical Engineers to supervise mechanical excavated trial pits and carry out geological logging, including in-situ geotechnical testing;

• A full range of environmental, geotechnical sampling and testing methods;

• Resistivity Testing;

• Off-shore seabed geotechnical services;

• Factual and interpretative reporting services.

As AREG and GSHP members we are eager to explore new opportunities in renewableenergy in the UK and Europe, whether as project leaders, contractors/suppliers or jointventure partners.

GEOTHERMAL & RENEWABLE ENERGY

GeothermalRaeburn Drilling and Geotechnical (Northern) Limited, as part of the Raeburn Group of Com-panies offers the opportunity to complement your development with new technology.Geothermal energy is a virtually unlimited resource, and modern processes have harnessedthe inherent temperature within the Earth, converting it into an economic heating and cool-ing process.For both domestic and industrial situations, geothermal energy offers you the potential toconvert your investment into savings.Working alongside The Raeburn Group of Companies we are at the forefront of this tech -nology. We have specially trained personnel to fulfill not only your drilling requirements butalso provide a full design and installation service. Raeburn have all the necessary expertise to help you benefit from long termcost savings while looking to the future with a clean, adaptable and environmentally friendly energysolution.

Raeburn Drilling and Geotechnical (Northern) Ltd can carryout the following works:

• Geotechnical ground response site testing unit;

• Drilling to depth specified by the design team;

• Flushing the borehole prior to insertion of geothermal loop;

• Pressure grouting the borehole, from the bottom up, using thermal enhanced bentonite grout;

• Pressure-test each individual borehole loop before installation;

• Flow and pressure test each individual borehole loopafter installation and grouting has taken place;

• Capping of all open borehole loops, immediately upon completion;

• Connecting systems as specified in the heat pump schematic drawing supplied bythe design team;

• Pressure and flow testing the complete system upon completion.

A Raeburn Drilling and Geotechnical (Northern) Ltd geothermal engineer would be on site

to supervise all site works from inception to completion. All works would strictly adhere to

and be in accordance with the systems design.

Wind Farms: Onshore and OffshoreRaeburn Drilling and Geotechnical (Northern) Ltd have an experienced and accomplished

team carrying out extensive Geotechnical and Environmental investigations into wind farm

projects, to enable the client to design suitable wind turbine structures. Sites have included

Hill of Balquhindachy; Clochnahill, Stonehaven; Westray, Orkney; Hill of Burns Fyvie, Services

include, but are not limited to:

• Boreholes using Cable Percussive and Rotary methods;

• Geotechnical Engineers to supervise mechanical excavated trial pits and carry out geological logging, including in-situ geotechnical testing;

• A full range of environmental, geotechnical sampling and testing methods;

• Resistivity Testing;

• Off-shore seabed geotechnical services;

• Factual and interpretative reporting services.

As AREG and GSHP members we are eager to explore new opportunities in renewableenergy in the UK and Europe, whether as project leaders, contractors/suppliers or jointventure partners.

Geotechnical��RESOURCES

• Over 30 engineers and geologists ranging from recent graduate to chartered status with over 30 years

of geotechnical experience.

• All Staff hold appropriate Black, Silver or Gold CSCS cards.

• Modern fully networked IT systems incorporating a geotechnical database allowing the production

of logs, cross-sections, drawings and measurements. Integration with CAD systems, slope stability

analyses and contouring (layer profiling).

• Archive of geological and historical maps together with large technical library and extensive

geotechnical knowledge base.

• Report production from paper to full electronic form (such as Adobe Acrobat and AGS), including

drawings to A0 size.

• Topographic surveying and setting out using electronic surveying equipment.

CAPABILITIES

• Desk-top studies to assess the geological conditions beneath a site, including mineral stability.

• Scoping ground investigations to address the geotechnical issues while taking into account the nature

of the development proposals.

• Logging trial pits and soil and rock samples to BS5930.

• Field mapping of geological formations.

• Field testing including permeability (variable and constant head, packer, pumping), infiltration,

percolation, vane shear strength, CBR, plate load, redox potential and resistivity.

• Field installations including piezometers (Cassagrande, vibrating wire, pneumatic), gas and water

monitoring standpipes, inclinometers and extensometers.

• Field monitoring of the above using the latest data logging systems.

• Scheduling laboratory testing on samples of soil and rock.

• Preparation of factual reports on the findings of the investigations.

• Preparation of interpretative reports on investigations including foundations, buried structures, roads,

sewers, tunnels, earthworks, ground-water control, mineral stability, stratigraphical correlation.

EnvironmentalRESOURCES

• MCERTS accredited laboratory at Birmingham.

• Over 30 engineers, geologists and environmental scientists ranging from recent graduate to chartered

status with over 20 years experience.

• Modern fully networked IT systems incorporating quantitative risk assessment packages and databases

allowing production of fully comprehensive risk assessments, drawings and cross sections.

• Fully detailed quantitative risk assessment software packages for all major receptors, CLEA, SNIFFER,

Consim and P20 worksheets.

• A wide range of monitoring and sampling equipment including photo ionisation detector (PID), discreet

water sampler, interface meter, flame ionisation detector (FID) and mechanical Waterra pump.

• Report production from paper to full electronic form (such as Adobe Acrobat and AGS), including

drawings to A0 size.

CAPABILITIES

• Phase I desk top studies for due diligence, pre/post acquisition audit and ground investigation design.

• Formulation of detailed conceptual site models.

• Scoping investigations to identify contamination issues and remediation requirements appropriate to

the development.

• Integration of data allowing ground-water profiling and production of 3D conceptual site models

highlighting potential sources, pathways and receptors.

• Supervision of ground investigations and specialist sampling of soil, ground-water and gas.

• Ground gas monitoring via landfill gas analyser or PID for VOCs. Ground gas sampling using Gresham

or Draeger sampler.

• Ground-water sampling using standard/point source bailer or dedicated Waterra equipment.

• On site monitoring of pH, temperature, dissolved oxygen, electrolytic conductivity, redox potential and

dissolved oxygen.

• On site analysis for TPH, PAH and heavy metals using SDI or HNU test kits.

• Preparation of risk assessments and reports to satisfy regulatory authorities.

• Design, management and supervision of appropriate remediation schemes.

ExplorationRESOURCES

• Over 60 Drillers with appropriate NVQ Level 2 Qualifications and holding Blue CSCS Skilled Worker cards.

• All Lead Drillers are experienced in a wide range of exploration techniques in the mineral resource and

extractive industries.

• With the emphasis on quality and safety, Site Operatives are wholly employed by the Company and

remuneration is time based, not production bonus related.

• Over 40 rotary and percussion rigs including various lorry, tractor and track mounted units incorporating

a selection of chuck and top drive drilling equipment.

CAPABILITIES

• A wide range of drilling techniques including:

→ > reverse circulation

→ > conventional and wireline coring

→ > double or triple tube coring at diameters from 30mm to 125mm

→ > auger drilling (flight and hollow stem)

→ > down-the-hole hammer

→ > cable percussion

• Depending on the type of drill and technique, the following flushing options are available:

→ > air

→ > water

→ > air/water mist

→ > foam

→ > mud

• Inclined (angled) boreholes can be drilled and their direction measured by electronic means to explore

and define steeply dipping strata.

• The wide range of drilling equipment and skilled personnel allows an efficient, high quality mineral

exploration service in hard and soft formations, in all terrains.

• Provision of a comprehensive service to the mineral exploration industry.

DrillingRESOURCES

• Over 60 Drillers with appropriate NVQ Level 2 Qualifications and holding Blue CSCS Skilled Worker cards.

• All Lead Drillers are experienced in a wide range of exploration techniques in the site investigation industry.

• With the emphasis on quality and safety, Site Operatives are wholly employed by the Company and

remuneration is time based, not production bonus related.

• Over 40 rotary and percussion rigs including various lorry, trailer, tractor and track mounted units

incorporating a selection of chuck and top drive drilling equipment.

• Several soil and/or rock drilling rigs capable of working in confined spaces and at remote sites (restricted

access, low head room, helicopter lifts, etc.).

• Tracked and wheeled excavators.

• Continuous dynamic probe, window sampling, hand boring and Mackintosh probe equipment.

CAPABILITIES

• Soft ground boring at diameters up to 400mm to depths in the order of 60m.

• Sampling and in situ testing rock and soil in accordance with BS5930 and BS1377 (e.g. packer tests, piston

samples, field vane tests, permeability tests, penetration tests).

• Borehole installations including piezometers, gas and water monitoring standpipes, inclinometers and

extensometers.

• Vegetable oil used as lubricant to control environmental contamination.

• A wide range of drilling techniques including reverse circulation, conventional and wireline coring, double

or triple tube coring and down-the-hole hammer, using various flushing medium (air, water, mud, mist, etc.).

• Investigation of mineral workings including inclined (angled) boreholes with direction measured by

electronic means to explore and define steeply dipping strata.

• The wide range of drilling equipment and skilled personnel allows an efficient, high quality ground

investigation service in hard and soft formations, in all terrains and access situations.

Water�WellRESOURCES

• Over 60 Drillers with appropriate NVQ Level 2 Qualifications and holding Blue CSCS Skilled Worker cards.

• All Lead Drillers are experienced in a wide range of well drilling techniques.

• With the emphasis on quality and safety, Site Operatives are wholly employed by the Company and

remuneration is time based, not production bonus related.

• Over 40 rotary and percussion rigs including various lorry, tractor and track mounted units incorporating

a selection of chuck and top drive drilling equipment.

CAPABILITIES

• Complete water supply solutions for private and industrial needs.

• Soft and hard ground boring at diameters of up to 650mm up to depths of 250m.

• Drilling using a variety of drilling methods e.g. Cable percussion, direct rotary, mud flush, down-the-hole

hammer in conjunction with air, water, foam.

• Pump testing carried out in accordance with BS6316 - flow rates in the range of 0.1m3 to 200m3 per hour.

• Monitoring of flow rates, water level, temperature and conductivity by means of data logger.

• Personnel experienced in submersible pump installation and removal, with supervisors having attended

Grundfoss Pump Training Academy.

• Wellmaster Rising Main approved installers and suppliers.

• Full well design capability available - from initial borehole/well location through to final pump and head

work installation.

• Capability to provide full refurbishment of existing wells.

• Filtration packages available for removal of iron, manganese etc, as well as ultraviolet treatment.

Laboratories��RESOURCES

• UKAS accredited laboratories at Hamilton, Airdrie, Birmingham and Chesham.

• MCERTS accredited laboratory at Birmingham.

• Over 45 specialist Technicians, Chemists, Quality Supervisors and Managers.

• Comprehensive range of equipment to undertake tests to BS1377, BS6297, BRE Digest 365, ISRM and ASTM

standards.

• Analytical chemical laboratory facilities.

• On site loading and earthworks testing equipment (e.g. nuclear density gauge, plate loading apparatus).

• All laboratories equipped with networked IT systems incorporating datalogging and processing software.

CAPABILITIES

• Routine geotechnical testing including Atterberg limits (PI), consolidation, particle size distribution,

undrained triaxial, CBR, compaction, MCV, pH and sulphate.

• Capacity for over ninety triaxial effective stress and permeability tests.

• Testing of sensitive soils using Rowe cell and ring shear apparatus.

• Testing of coarse grained soils using large shear boxes.

• Permeability assessment of coarse grained soils using large box permeameter (0.3m x 0.3m x 1.0m).

• Assessment of strength and durability of rock and aggregates.

• Determination of contamination concentrations in soil and ground-water.

• UK wide site testing for earthworks material acceptability and validation.

• Contaminated land remediation testing and validation.

• Infiltration (soakaway) and percolation testing.