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Caulmert Limited CAULMERT LIMITED Engineering, Environmental & Planning Consultancy Services Corby Materials Recycling Facility Viridor Waste Management Ltd Concrete Slab for Glass Storage, Handling and Transfer Factual Ground Investigation Report Prepared by: Caulmert Limited 8 St Georges Court, Dairyhouse Lane, Altrincham, Cheshire, WA14 5UA Tel: 0161 9286886 Email: [email protected] Web: www.caulmert.com Doc ref: 2010.7.VWM.DEO.PAC.B0 Issue date: April 2015 APPROVAL RECORD Site: Corby Materials Recycling Facility Client: Viridor Waste Management Ltd Project Title: Concrete Slab for Glass Storage, Handling and Transfer Document Title: Factual Ground Investigation Report Document Ref: 2010.7.VWM.DEO.PAC.B0 Report Status: DRAFT Project Director: Allan Smith Project Manager: Chris Newton Caulmert Limited: 8 St Georges Court, Dairy House Lane, Altrincham, Cheshire, WA14 5UA Tel: 0161 9286886 Author Dominic Ostafijczuk Date April 2015 Reviewer Paul Clayden Date April 2015 Approved Chris Newton Date April 2015 DISCLAIMER This report has been prepared by Caulmert Limited with all reasonable skill, care and diligence in accordance with the instruction of the above named client and within the terms and conditions of the Contract with the Client. The report is for the sole use of the above named Client and Caulmert Limited shall not be held responsible for any use of the report or its content for any purpose other than that for which it was prepared and provided to the Client. Caulmert Limited accepts no responsibility of whatever nature to any third parties who may have been made aware of or have acted in the knowledge of the report or its contents. No part of this document may be copied or reproduced without the prior written approval of Caulmert Limited. Viridor Waste Management Ltd Concrete Slab for Glass Handling, Storage and Transfer Factual Ground Investigation Report TABLE OF CONTENTS 1 INTRODUCTION ................................................................................................................ 1 1.1 Details of Commission ........................................................................................... 1 1.2 Limitations of this Report ...................................................................................... 1 2 SITE LOCATION AND DESCRIPTION ................................................................................... 2 2.1 Site Location ......................................................................................................... 2 2.2 Site Description ..................................................................................................... 2 2.3 Proposed Development ........................................................................................ 2 3 GROUND INVESTIGATION ................................................................................................. 3 3.1 Description of Fieldwork ....................................................................................... 3 3.2 Cable Percussion Boreholes .................................................................................. 3 3.3 Standard Penetration Testing ................................................................................ 3 3.4 Trial Pitting ........................................................................................................... 4 3.5 Sampling ............................................................................................................... 4 3.6 Plate Bearing Tests ................................................................................................ 4 3.7 Dynamic Cone Penetrometer Testing .................................................................... 5 4 GROUND CONDITIONS ENCOUNTERED ............................................................................. 6 4.1 Sequence .............................................................................................................. 6 4.2 Made Ground ....................................................................................................... 6 4.3 Bedrock Strata ...................................................................................................... 7 4.4 Groundwater Conditions ....................................................................................... 7 4.5 Ground Gas ........................................................................................................... 8 5 GEOTECHNICAL LABORATORY TESTING ............................................................................ 9 5.1 Schedule of Laboratory Testing ............................................................................. 9 5.2 Natural Moisture Content ..................................................................................... 9 5.3 Plasticity Index (PI) ................................................................................................ 9 5.4 Particle Size Distribution (PSD) Analyses................................................................ 9 5.5 Triaxial Shear Strength ........................................................................................ 10 5.6 Chemical Attack on Buried Concrete ................................................................... 10 Caulmert Ltd 2010.7.VWM.DEO.PAC April 2015 Viridor Waste Management Ltd Concrete Slab for Glass Handling, Storage and Transfer Factual Ground Investigation Report 6 ENVIRONMENTAL RISK ASSESSMENT ............................................................................. 12 6.1 Contaminated Land ............................................................................................. 12 6.2 Risk Assessment .................................................................................................. 12 6.3 Updated Conceptual Site Model.......................................................................... 15 7 REFERENCES .................................................................................................................... 17 FIGURES Figure 1 Site Location Plan Figure 2 Proposed Development Layout Plan APPENDICES Appendix 1 Statutory Services Plans Appendix 2 Borehole Logs Appendix 3 Standard Penetration Testing Results and Plots Appendix 4 Trial Pit Logs and Photographs Appendix 5 Plate Bearing Test Results Appendix 6 Dynamic Cone Penetrometer Testing Results and Plots Appendix 7 Laboratory Testing Results Natural Moisture Content Atterberg Limits (Plasticity Index) and Casagrande Chart Plots Particle Size Distribution (PSD) Chemical Analyses Testing Results Appendix 8 Ground Gas Monitoring Results Caulmert Ltd 2010.7.VWM.DEO.PAC April 2015 Viridor Waste Management Ltd Concrete Slab for Glass Handling, Storage and Transfer Factual Ground Investigation Report 1 INTRODUCTION 1.1 Details of Commission 1.1.1 Caulmert Limited (Caulmert) was commissioned by Viridor Waste Management Limited (Viridor) to undertake a ground investigation at their existing Corby Materials Recycling Facility (MRF), Corby, Northamptonshire. 1.1.2 This report presents the findings from the ground investigation which incorporated cable percussion boreholes, standard penetration testing (SPT), trial pitting, plate bearing tests, handheld dynamic cone penetrometer and laboratory testing. 1.2 Limitations of this Report 1.2.1 This report is solely for the use of Viridor and should not be relied upon by third parties without prior written consent from Caulmert. 1.2.2 Caulmert accepts no responsibility for the consequences of this document being used for any purpose or project other than for which it was commissioned or for consequences arising from this document’s use by any third party with whom an agreement has not been executed. 1.2.3 The exploratory holes excavated, which investigate only a small volume of the ground in relation to the size of the site, can only provide a general indication of the site conditions. Therefore, there may be unexpected ground conditions elsewhere on the site which have not been identified by this investigation. 1.2.4 The site investigation was designed by Caulmert to assess the ground conditions for the proposed construction of a concrete slab in the south west corner of the current MRF site. This report presents factual observations made during the ground investigation, together with in situ and laboratory testing. Caulmert Ltd 2010.7.VWM.DEO.PAC 1 April 2015 Viridor Waste Management Ltd Concrete Slab for Glass Handling, Storage and Transfer Factual Ground Investigation Report 2 SITE LOCATION AND DESCRIPTION 2.1 Site Location 2.1.1 The site is located to the northeast of Corby town centre, Northamptonshire and is accessed off Pilot Road. The approximate centre of the site is at grid reference SP 490156, 289666. The site location map is presented as figure 1. 2.2 Site Description 2.2.1 The site is flat and level comprising tarmac road at the entrance and concrete hard standing surface throughout between industrial buildings. There are various buildings on site mainly consisting of steel portal frame structures with corrugated panel siding and roofs, supported by concrete foundations and brick walls. The buildings are used for office, storage areas and warehousing facilities. 2.2.2 The proposed development site is generally flat and level. A small concrete slab is located along the southern fence line and steel girders are present inside the fence protruding vertically from the surface along the northern boundary and in the south west corner of the site. The purpose of the steel girders is unknown, but may have been used as a vehicle barrier.
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