Land Quality Assessment Dec 2004
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Project Report building | environment | systems | transportation | water Defence Estates Wilton Land Quality Assessment Phase One: Desk Study Land Quality Assessment Report FINAL REPORT December 2004 Prepared By: Prepared For: Carl Bro Group Ltd Defence Estates Grove House Kingston Road Mansion Gate Drive Sutton Coldfield Leeds West Midlands LS7 4DN B75 RL UK Tel: +44 (0)113 262 0000 Fax: +44 (0)113 262 0737 Email: [email protected] www.carlbro.co.uk DEFENCE ESTATES ERSKINE BARRACKS, WILTON LAND QUALITY ASSESSMENT PHASE ONE: DESK STUDY LAND QUALITY ASSESSMENT REPORT PROJECT NO: 12743 FINAL LQA Report December 2004 Defence Estates Prepared by Carl Bro Group Limited Kingston Road for the Defence Estates under Sutton Coldfield Term Commission DE 11/4470 West Midlands B75 7RL TABLE OF CONTENTS Page No. 1.0 LAND QUALITY STATEMENT FOR ERSKINE BARRACKS, WILTON................ 1 1.1 Introduction................................................................................................ 1 1.2 Location..................................................................................................... 1 1.3 Operations and Site History ...................................................................... 1 1.4 Explosive Ordnance .................................................................................. 2 1.5 Radiological Materials ............................................................................... 2 1.6 Asbestos.................................................................................................... 2 1.7 Environmental Site Setting ........................................................................ 2 1.8 Sources of Potential Contamination .......................................................... 3 1.9 Risk Assessment Relating to Potential Contamination ............................. 3 1.10 Overall Land Quality.................................................................................. 4 1.11 Suitability for Redevelopment.................................................................... 4 1.12 Information Sources .................................................................................. 5 2.0 INTRODUCTION................................................................................................... 6 2.1 Terms of Reference................................................................................... 6 2.1.1 Objectives...................................................................................... 6 2.1.2 Methodology .................................................................................. 6 2.2 Report Structure ........................................................................................ 7 3.0 SITE DESCRIPTION............................................................................................. 8 3.1 Site Location.............................................................................................. 8 3.1.1 Location, Address, Grid Reference................................................ 8 3.1.2 Site Boundary Length, Type and Condition................................... 8 3.1.3 Adjoining Land Uses...................................................................... 8 3.1.4 Site Topography ............................................................................ 9 3.1.5 Ground Cover and Permeability .................................................... 9 3.2 Site Description and Features ................................................................... 9 3.2.1 Site Layout..................................................................................... 9 3.2.2 Operations and Activities............................................................. 10 3.2.3 Materials and Chemicals Storage................................................ 11 3.2.4 Petrol, Oil and Lubricant (POL) Points and Fuel Storage............ 11 3.2.5 Incinerators and Burning Grounds............................................... 12 3.2.6 Air Pollution ................................................................................. 12 3.2.7 Drainage and Discharges ............................................................ 12 3.2.8 Waste Management..................................................................... 13 3.2.9 Asbestos...................................................................................... 13 3.2.10 Transformers and Polychlorinated Biphenyls (PCBs).................. 13 3.2.11 Radiological Materials ................................................................. 14 3.2.12 Explosive Ordnance..................................................................... 14 3.3 Public Register Information ..................................................................... 14 4.0 SITE HISTORY ................................................................................................... 16 4.1 Historical OS Maps.................................................................................. 16 4.1.1 Site Development ........................................................................ 16 4.1.2 Surrounding Areas Development................................................. 16 4.2 MOD Sources.......................................................................................... 17 4.2.1 Dstl Radiological Protection Services.......................................... 17 4.2.2 Army Historical Branch ................................................................ 17 4.2.3 Air Historical Branch (AHB RAF) ................................................. 18 4.2.4 Anecdotal Information.................................................................. 18 FINAL – Erskine Barracks, Wilton Phase One Land Quality Assessment P00132700 – Land Quality Assessment Report – December 2004 5.0 POTENTIALLY CONTAMINATIVE USES........................................................... 19 5.1 Study Site ................................................................................................ 19 5.2 Neighbouring Sites .................................................................................. 20 6.0 ENVIRONMENTAL SETTING............................................................................. 21 6.1 Geology ................................................................................................... 21 6.2 Hydrogeology .......................................................................................... 21 6.3 Hydrology ................................................................................................ 21 6.4 Ecology and Sensitive Land Use............................................................. 22 6.5 Sensitivity Assessment............................................................................ 22 7.0 ENVIRONMENTAL RISK ASSESSMENT .......................................................... 23 7.1 Introduction.............................................................................................. 23 7.2 Methodology............................................................................................ 23 7.3 Sources ................................................................................................... 24 7.4 Pathways................................................................................................. 25 7.5 Receptors ................................................................................................ 25 7.6 Risk Evaluation........................................................................................ 26 7.6.1 Current Uses................................................................................ 26 7.6.2 During Demolition Works............................................................. 27 8.0 OVERALL LAND QUALITY AND SUITABILITY FOR REDEVELOPMENT ........ 33 9.0 REFERENCES.................................................................................................... 35 FIGURES FIGURE 1 SITE LOCATION PLAN FIGURE 2 SITE LAYOUT PLAN FIGURE 3 AREAS OF POTENTIAL CONTAMINATION FIGURE 4 CONCEPTUAL SITE MODEL FIGURE 5 SITE SERVICE PLAN APPENDICES APPENDIX A ASBESTOS REGISTER SUMMARY APPENDIX B ENVIROCHECK DATA APPENDIX C HISTORICAL OS MAPS APPENDIX D RESPONSES FROM DRPS AND AHS FINAL – Erskine Barracks, Wilton Phase One Land Quality Assessment P00132700 – Land Quality Assessment Report – December 2004 1.0 LAND QUALITY STATEMENT FOR ERSKINE BARRACKS, WILTON 1.1 Introduction Carl Bro Group Limited (Carl Bro) were commissioned by Defence Estates to undertake a Phase 1 Land Quality Assessment (LQA) at HQ Land Command, Erskine Barracks, Wilton. The purpose of this LQA has been to determine the environmental quality of the ground conditions at Erskine Barracks, Wilton and to assess the potential for any health and environmental risks at the site. The review also assesses the potential for future contamination and health impacts that may occur as a result of demolition of any existing buildings. 1.2 Location Erskine Barracks, Wilton is located approximately 0.8km north of Wilton town centre and 4.8km west of Salisbury. The Erskine Barracks site is divided into two areas by an operational railway line: North Camp and South Camp. The centre of the site is located at grid reference SU 104 317. The site occupies an area of approximately 15ha, with North Camp occupying 11.4ha and the South Camp 3.6ha. The site is located in an area of mixed residential, commercial and open woodland land use. 1.3 Operations and Site History Erskine Barracks, Wilton is the main Headquarters for the Army’s Land Command and is also used by the Joint Helicopter Command. Erskine