Wall Grange to Ladderedge Resilience Main

September 2023

RML were commissioned to carry out a Site investigation for a new Resilience Main for Severn Trent, running between Wall Grange and Ladderedge, Leek, Staffordshire.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 5 No. Rotary Core Boreholes were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology comprised the Morridge Formation and Chester Formation from the Triassic Period.

Laboratory Testing

Waste Acceptance Criteria (WAC) tests were the Laboratory tests undertaken for the project.

Premier Inn Wembley Park

August 2023

RML were commissioned to carry out a Site investigation to provide information to assist in the repair or replacement of the existing car park construction owing to excessive settlement.  

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 62 No. Dynamic Probe Tests (DPSH), 14 No. Drive-in-sampler boreholes and Reinstatement were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site is shown as being Alluvium overlying London Clay of the Eocene Period.

Laboratory Testing

Chemical Analysis, Waste Acceptance Criteria (WAC) Tests and Asbestos Identification were the Laboratory tests undertaken for the project.

Northend Trading Estate, Erith

August 2023

RML were commissioned to carry out a Site Investigation to provide information on the existing road make-up and underlying sub-soil conditions at this site to assist the Consulting Engineers to establish the load carrying capacity of the ramped concrete entrance road.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 4 No. Concrete Cores, 4 No. Drive-in-sampler boreholes, MEXE Probe CBR Tests and fast setting reinstatement were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site is shown as being Recent Crayford Silt Member over lying Thanet Sand (Lambeth Group) of the Palaeocene Period overlying Upper Chalk of the Upper Cretaceous Period.

Laboratory Testing

Natural Moisture Contents, Particle Size Distribution, Quick Undrained Triaxial Compression Tests and Unconfined Compression Tests were the Laboratory tests undertaken for the project.

Station Road Rising Main, Little Marlow

July 2023

RML were commissioned to carry out a Site investigation for a proposed rising main between Marlow Rugby Union Football Club and the Thames Water Little Marlow Treatment Works.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 9 No. Light Percussion Boreholes and Land-Borne Gas & Groundwater Monitoring were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site is shown as being recent Alluvium and/or recent Shepperton Gravel (River Thames Terrace Deposits) overlying Upper Chalk of the Cretaceous Period.

Laboratory Testing

Natural Moisture Contents, Atterberg Limits, Particle Size Distribution, Quick Undrained Triaxial Compression Tests, Chemical Analysis for soil & water, Hazardous Waste Classification Tests, Waste Acceptance Criteria Tests (WAC), Asbestos Identifications and pH and Sulphate Tests were the Laboratory tests undertaken for the project.

Hackney Wick, London

July 2023

RML were commissioned to carry out a Site investigation for a demolition of existing structures and construction of ground plus 7 storey building comprising hotel (Class C1) and ground floor commercial uses (Class E) with associated landscaping, cycle parking and plant.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. On-Site UXO Report, 3 No. Sonic Coring Boreholes, 5 No. Hand Excavated Trial Pits, Land-Borne Gas & Groundwater Monitoring and Photoionization Detector (PID) Monitoring were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site site is shown as being Recent Alluvium overlying Taplow Gravel (River Thames Terrace Deposits) overlying the Lambeth Group of the Palaeocene Period.

Laboratory Testing

Natural Moisture Contents, Particle Size Distribution, Quick Undrained Triaxial Compression Tests, Chemical Analysis for soil & water, Waste Acceptance Criteria (WAC) Tests, Asbestos Identifications and pH and Sulphate Tests were the Laboratory tests undertaken for the project.

Hillbury Road, Warlingham

June 2023

RML were commissioned to carry out a Site investigation for a demolition of an existing dwelling and construction of two new, two-storey, properties with habitable roof spaces, together with associated car parking, access and landscaping.

Field Work

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 2 No. Light Percussion Boreholes, Falling Head Permeability tests and Land-Borne Gas and Groundwater monitoring were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology is shown as being Clay-with-Flints overlying Upper Chalk of the Upper Cretaceous Period.

Laboratory Testing

Natural Moisture Contents, Atterberg Limits, Quick Undrained Triaxial Compression Tests, pH and Sulphates, Chemical Analysis- soil and Asbestos identifications were the Laboratory tests undertaken for the project.

Sterling House, Loughton

June 2023

RML were commissioned to carry out a Site investigation to obtain information on the concrete slab, sub-soil conditions and existing foundations at this site, together with some laboratory testing, in order to provide baseline information for subsequent foundation design by others.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 7 No. Concrete Cores, 1 No. Dual Sonic/Rotary Coring Borehole, 3 No. Drive-in-sampler Boreholes, 2 No. Mechanically Excavated Trial Pits and MEXE Probe CBR tests were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site site is shown as being London Clay of the Eocene Period.

Laboratory Testing

Natural Moisture Contents, Atterberg Limits, Quick Undrained Triaxial Compression Tests, Unconfined Compression Tests, Chemical Analysis, Waste Classification Tests, Asbestos Identifications and pH and Sulphate Tests were the Laboratory tests undertaken for the project.

Industrial Estate, Romsey

June 2023

RML were commissioned to carry out a Site investigation for the demolition of existing buildings and construction of new, single-storey, industrial units.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 1 No. Cable Percussion Borehole, 3 No. Light Percussion Boreholes and Land-Borne Gas and Groundwater Monitoring were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site site site is shown as being recent Alluvium overlying recent River Terrace Deposits overlying the Wittering Formation (Bracklesham Group) of the Palaeogene Period.

Laboratory Testing

Natural Moisture Contents, Atterberg Limits, Quick Undrained Triaxial Compression Tests, Particle Size Distribution, Chemical Analysis, Asbestos Identifications and pH and Sulphate Tests were the Laboratory tests undertaken for the project.

Vale School, Worthing

May 2023

RML were commissioned to carry out a Site investigation to establish the condition and profiles of existing foundations to perimeter fence posts as well as perimeter edging to an existing pitch.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 4 No. Drive-in-sampler Boreholes, 9 No. Hand Excavated Trial Pits, MEXE Probe CBR Tests, and Land-Borne Gas and Water monitoring were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology is shown as being on the boundary of Recent Head Deposits overlying the Upper and Middle Chalk (Newhaven Chalk) of the Upper Cretaceous Period.  

Laboratory Testing

Quick Undrained Triaxial Compression Tests, Chemical Analysis- soil, Waste Classification Test and asbestos identification were the Laboratory tests undertaken for the project.

Bramber Primary School, Worthing

May 2023

RML were commissioned to carry out a Site investigation to establish the condition and type of existing pitch construction makeup, drainage construction including land drains and soakaways, to determine ground conditions and geotechnical properties of the subsoil for pitch construction design including soakaway design and also to investigate the environmental characteristics of the ground including contamination testing, gas/groundwater monitoring and waste acceptance criteria.

Field Work

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 3 No. Drive-in-sampler Boreholes, 8 No. Mechanically Excavated Trial Pits, MEXE Probe CBR tests, BRE 365 Soil Infiltration Tests and Land-Borne Gas and Groundwater Monitoring were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site site is shown as being Recent Head Deposits overlying the Upper and Middle Chalk (Tarrant Chalk Member) of the Upper Cretaceous Period.

Laboratory Testing

Particle Size Distribution, Quick Undrained Triaxial Compression Tests, Chemical Analysis, Waste Classification Tests, Asbestos Identifications and pH and Sulphate Tests were the Laboratory tests undertaken for the project.

Cinque Ports Way WPS to Hastings and Bexhill

April 2023

RML were commissioned to carry out a Site investigation for to provide further information on the sub-soil conditions at points along the a proposed water main route, together with laboratory testing, in order to provide information to assist foundation design, potential contamination and the choice of pipe materials.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 6 No. Light Percussion Boreholes, 1 No. Drive-In-Sampler Borehole and Land-borne Gas Monitoring were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site is shown as being recent Alluvium and/or recent Storm Gravel Beach Deposits overlying the Ashdown Beds of the Cretaceous Period.

Laboratory Testing

Natural Moisture Contents, Atterberg Limits, Quick Undrained Triaxial Tests, Particle Size Distribution, Chemical Analysis, Waste Classification Tests, Asbestos Identification and pH and Sulphate Tests were the Laboratory tests undertaken for the project.

Oakley Green Trunk Main, Windsor

April 2023

RML were commissioned to carry out a Site investigation for a new foul water rising main crossing beneath the River Thames.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 2 No. Cable Percussion Boreholes, 3 No. Light Percussion Boreholes and Groundwater Monitoring were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site site is shown as being Recent Kempton Park Gravel (River Thames Terrace Deposits) overlying London Clay of the Eocene Period. The southern side of the River Thames at Windsor Marina is shown to have Recent Alluvium overlying the Kempton Park Gravel.

Laboratory Testing

Natural Moisture Contents, Particle Size Distribution, Quick Undrained Triaxial Compression Tests, Chemical Analysis, Waste Classification Tests, Asbestos Identifications and pH and Sulphate Tests were the Laboratory tests undertaken for the project.

Letchworth to Royston Trunk Main

February 2023

RML were commissioned to carry out a Site investigation for a information on the sub-soil conditions at points along a proposed water main route, together with laboratory testing, in order to provide information to assist foundation design, potential contamination and the choice of pipe materials.

Field Work

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 14 No. Light Percussion Boreholes, 4 No. Drive-in-sampler Boreholes and 1 No. Sonic Coring Borehole was undertaken across the route.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site site is the Holywell Nodular Chalk Formation and the New Pit Chalk Formation (Middle Chalk). Superficial deposits were sporadic across the route and if found to be present would comprise of either Head Deposits or Glacial Till.

Laboratory Testing

Natural Moisture Contents, Atterberg Limits, Particle Size Distribution, Quick Undrained Triaxial Compression Tests, Chemical Analysis, Asbestos Identification and pH and Sulphate Tests were the Laboratory tests undertaken for the project.

Worthing Integrated Care Center

January 2023

RML were commissioned to carry out a borehole investigation to assist in the design of a piled foundation.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 2 No. Sonic Coring Boreholes were drilled at the site to depth of 30m.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site is Recent Brickearth overlying Upper and Middle Chalk of the Cretaceous Period.

Laboratory Testing

Natural Moisture Contents, Atterberg Limits, Particle Size Distribution, Quick Undrained Triaxial Compression Tests, Chalk Density and pH and Sulphate Tests were the Laboratory tests undertaken for the project.

Chesterton Road, Cambridge

November 2022

RML were commissioned to carry out a Site investigation for a demolition of an existing building and provision of a mixed use scheme comprising 19 No. small and large HMO units.

Field Work

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 3 No. Concrete Cores, 3 No. Drive-In-Sampler Boreholes, Shallow Infiltration Tests, Falling Head Permeability Tests, Land-borne Gas Monitoring and Photoionisation Detector (PID) Monitoring were undertaken as part of the investigation.

Ground Conditions

According to information published by British Geological Survey (BGS) the underlying geology at the site comprised 2nd River Terrace Deposits over the Gault Formation of the of the Cretaceous Period.

Laboratory Testing

Particle Size Distribution, Dynamic Headspace Analysis, Chemical Analysis, Waste Classification Tests and pH and Sulphate Tests were the Laboratory tests undertaken for the project.

Barwell Business Park, Chessington

September 2022

RML were commissioned to carry out a Site investigation to gather information on the existing ground
slab and underlying sub-soil conditions at this site, together with laboratory testing,
in order to assist the Consulting Engineers to confirm the safe bearing capacity of the concrete
slab.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 4 No. Concrete Cores, 6 No. Drive-in-Sampler Boreholes and MEXE Probe CBR Tests were undertaken as part of the site investigation.

Ground Conditions

According to Information Published by British Geological Survey the underlying geology at this site comprised London Clay of the Eocene Period.

Laboratory Testing

Natural Moisture Contents, Atterberg Limits, Quick Undrained Triaxial Compression Tests and Uniaxial Compression Tests were the Laboratory tests undertaken for this project.

Blashford, Ringwood

August 2022

RML weren commissioned to carry out both a Phase I, Non-Intrusive, Desk Study and a Phase II, Intrusive, Site Investigation for the demolition of the existing dwelling and construction of a new single-storey property with two wings and an outbuilding arranged around a central courtyard.

Walkover Survey by RML Engineer

A walkover survey was carried out by an RML Engineer to establish if contamination is present from any undocumented practice or industrial use of the land and surrounding land and if necessary to confirm the accuracy of the information obtained from elsewhere as part of the Preliminary Risk Assessment (PRA) data gathering process . A visual assessment of the land to check for signs of industrial activity, landfilling, fly tipping , fuel storage, fuel tanks, asbestos related materials or any land contamination was undertaken and a photographic record made to provide evidence to show the condition of the land at the time of the Walkover Survey.

Phase I Environmental Risk Assessment

Environmental data, Comprising geo-environmental hazards, hydrology and hydrogeology was obtained for the current site covering an area of up to 1000mm from the site boundary.

Historical Maps

Historical Ordnance Survey maps were also obtained for the site, as part of the PRA data gathering process. These maps were used to inform of potential historical contaminative processes.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 1 No. Cable Percussion Borehole, 3 No. Drive-In-Sampler Boreholes, 1 No. Hand Excavated Trial Pits and Land-borne Gas Monitoring were undertaken as part of site investigation.

Laboratory Testing

Particle Size Distribution, pH & Sulphate tests, Chemical analysis, Waste Acceptance Criteria (WAC) Tests and Asbestos Identification were the Laboratory tests undertaken as part of investigation.

Laverstoke Lane, Whitchurch

July 2022

RML were commissioned to carry out a Site investigation for the construction of a large, detached, new property with ancillary buildings consisting of a pool and racket sports court together with associated access road and landscaping.

Filed Work

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 3 No. Light Percussion Boreholes, 6 No. Mechanically Excavated Boreholes, MEXE Probe CBR Tests, and Land-borne Gas Monitoring were undertaken as part of the site investigation.

Ground Conditions

According to Information Published by British Geological survey (BGS) the underlying geology at this site comprised the White Chalk Subgroup of the Upper Cretaceous Period.

Laboratory Testing

Chemical Analysis, Asbestos Identification and pH and Sulphate Tests are the Laboratory tests undertaken for this project.

Leacon Road, Ashford

July 2022

RML were commissioned to carry out both Phase I, Non-intrusive, Desk Study and Phase II, Intrusive, Site investigation for the extension of existing areas of concrete surfacing and the installation of new below ground drainage infrastructure.

Walkover Survey by RML Engineer

A walkover survey was carried out by an RML Engineer to establish if contamination is present from any undocumented practice or industrial use of the land and surrounding land and if necessary to confirm the accuracy of the information obtained from elsewhere as part of the Preliminary Risk Assessment (PRA) data gathering process . A visual assessment of the land to check for signs of industrial activity, landfilling, fly tipping , fuel storage, fuel tanks, asbestos related materials or any land contamination was undertaken and a photographic record made to provide evidence to show the condition of the land at the time of the Walkover Survey.

Phase I Environmental Risk Assessment

Environmental data, comprising geo-environmental hazards, hydrology and hydrogeology, was obtained for the current site covering an area of up to 1000m from the site boundary.

Historical Maps

Historical Ordnance Survey maps were also obtained for the site, as part of the PRA data gathering process. These maps were used to inform of potential historical contaminative processes.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 12 No. Light Percussion Boreholes, MEXE Probe CBR Tests, Shallow Samples, BRE 365 Soil Infiltration Tests, and Land-borne Gas Monitoring were undertaken as part of site investigation.

Laboratory Testing

Natural Moisture Contents, Atterberg Limits, Quick Undrained Triaxial Compression Test, Particle Size Distribution, pH & Sulphates tests, Chemical analysis and Asbestos Identification were the Laboratory tests undertaken for this project.

Chiswick High Road, London

March 2022

RML were commissioned to carry out both a Phase I, non-intrusive, Desk Study and Phase II, intrusive, Site Investigation in Chiswick, London for a development of a New Travelodge Hotel.

Walkover Survey by RML Engineer

A walkover survey was carried out by an RML Engineer to establish if contamination is present from any undocumented practice or industrial use of the land and surrounding land and if necessary to confirm the accuracy of the information obtained from elsewhere as part of the Preliminary Risk Assessment (PRA) data gathering process . A visual assessment of the land to check for signs of industrial activity, landfilling, fly tipping , fuel storage, fuel tanks, asbestos related materials or any land contamination was undertaken and a photographic record made to provide evidence to show the condition of the land at the time of the Walkover Survey.

Phase I Environmental Risk Assessment

Environmental data, comprising geo-environmental hazards, hydrology and hydrogeology, was obtained for the current site covering an area of up to 1000m from the site boundary.

Historical Maps

Historical Ordnance Survey maps were also obtained for the site, as part of the PRA data gathering process. These maps were used to inform of potential historical contaminative processes.

Fieldwork

Fieldwork was undertaken in line with British Standards BS 5930:2015+A1:2020. 2 No. Cable Percussion Boreholes, 4 No. Drive-in-sampler Boreholes, On-site UXO support and Land-Borne Gas Monitoring.

Laboratory Testing

Natural Moisture Contents, Atterberg Limits, Quick Undrained Triaxial Compression Tests, pH & Sulphate tests, Chemical analysis, Asbestos Identification and Waste Acceptance Criteria (WAC) tests were Laboratory tests undertaken for this project.

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