Simpson Park (Former Harworth Colliery) Remediation Strategy A098864 RS V6
Total Page:16
File Type:pdf, Size:1020Kb
Simpson Park (Former Harworth Colliery) Remediation Strategy A098864_RS_V6 Harworth Group January 2020 3 Sovereign Square, Sovereign Street, leeds, LS1 4ER Tel: +44 (0)113 278 7111 Fax: +44 (0)113 219 2317 Email: [email protected] Website: www. wyg .com WYG Engineering Limited. Registered in England & Wales Number: 01959704 Registered Office: 3 Sovereign Square, sovereign Street, Leeds, LS1 4ER Simpson Park (Former Harworth Colliery) Remediation Strategy Document control Document: Remediation Strategy Project: Harworth Colliery Client: Harworth Group Job Number: A098864 Report Reference A098864_RS_V6 File Origin: A098864\reports\A098864_RS Revision: Draft 1 Date: December 2016 Prepared by: Checked by: Approved by: Patricia Gill Iain Muir Patricia Gill Description of revision: Draft for client comment. Revision: V2 Date: February 2017 Prepared by: Checked by: Approved by: Description of revision: Incorporation of client comments. Revision: V3 Date: February 2017 Prepared by: Checked by: Approved By: Iain Muir Patricia Gill Patricia Gill Description of revision: Incorporation of additional information regarding below ground structures January 2020 www.wyg.com creative minds safe hands Simpson Park (Former Harworth Colliery) Remediation Strategy Revision: V4 Date: February 2017 Prepared by: Checked by: Approved By: Iain Muir Patricia Gill Patricia Gill Description of revision: Edits to text in section 2.5 following additional client comment Revision: V5.0 DRAFT Date: September 2018 Prepared by: Checked by: Approved By: Iain Muir Patricia Gill Patricia Gill Description of revision: DRAFT for comment. Updated to reflect work undertaken at the site up to August 2018. Revision: V6.0 Date: January 2020 Prepared by: Checked by: Approved By: Iain Muir Patricia Gill Patricia Gill Description of revision: Update to Enabling Works Upper 1m Criteria relating to calorific value. January 2020 www.wyg.com creative minds safe hands Simpson Park (Former Harworth Colliery) Remediation Strategy Contents 1.0 Introduction ................................................................................................... 1 1.1 Instruction ................................................................................................................. 1 1.2 Remediation Strategy Objectives ................................................................................. 1 1.3 Remediation Phasing .................................................................................................. 3 1.4 Terminology ............................................................................................................... 4 1.5 Report Format ............................................................................................................ 4 2.0 Site Details ..................................................................................................... 6 2.1 Site Location .............................................................................................................. 6 2.2 Proposed Development ............................................................................................... 6 2.3 Site Description .......................................................................................................... 6 2.4 Site History ................................................................................................................ 8 2.5 Anticipated Below Ground Structures ........................................................................... 9 2.6 Mining History ...........................................................................................................12 2.7 Ground Investigation Works .......................................................................................13 2.8 Published Geology, Hydrogeology and Hydrology ........................................................14 2.9 Ground Conditions .....................................................................................................16 2.10 Ground Conditions in Ponds Area ................................................................................19 2.11 Groundwater .............................................................................................................19 2.12 Ground Contamination Summary ................................................................................20 3.0 Remediated Areas ........................................................................................ 22 3.1 Phase 1C ..................................................................................................................22 3.2 Coking Works ............................................................................................................22 4.0 Remediation Strategy .................................................................................. 25 4.1 Scope of Remediation Works ......................................................................................25 4.2 Remediation Criteria, Enabling Works Upper 1m Criteria, Public Open Space (Park) Criteria, and Development Criteria ..............................................................................26 4.3 Remediation Options .................................................................................................28 4.4 Remediation During the Enabling Works .....................................................................30 4.5 Suitability of Material for Re-use .................................................................................35 4.6 Mine Shafts ...............................................................................................................37 4.7 Remediation During Development Works ....................................................................37 4.8 Supervision ...............................................................................................................41 4.9 Method Statements ...................................................................................................41 4.10 Health and Safety and Environmental Protection Considerations ...................................41 5.0 Contamination Verification Protocol ............................................................ 43 5.1 General .....................................................................................................................43 5.2 Chemical Verification .................................................................................................43 January 2020 www.wyg.com creative minds safe hands Simpson Park (Former Harworth Colliery) Remediation Strategy 5.3 Geotechnical Verification ............................................................................................45 5.4 Verification Reporting ................................................................................................45 6.0 Principles of Site Set Up and Environmental Control ................................... 47 6.1 Environmental Controls during the Enabling Works ......................................................47 6.2 Environmental Controls during the Development Works ...............................................50 7.0 References ................................................................................................... 51 Third Party Drawings Proposed Outline Masterplan, P16 5010 40 Rev D, JRP, 09.03.18. Ordnance Survey Plan Published 1983-1992, 1:10,000, Landmark Information Group on behalf of BWB Consulting. Site Features, UKC020HE/02A and UKC020HE/02B, BWB Consulting, 26.10.07. ‘No 1 Tower Service Duct’ (provided to WYG by Harworth Group) ‘Fan Drift’ x 2 (provided to WYG by Harworth Group) Drawings A098864/LDS/N/101/Rev A - Site Location A098864/LDS/N/102/Rev A - Site Layout A098864/LDS/N/103/Rev C - Exploratory Hole Location Plan A098864/LDS/N/104/Rev A - Inspection Pit Location Plan A098864/LDS/N/108/Rev B - Historical Structures and Features A098864/LDS/N/109/Rev C - Areas of Anticipated Significant Underground Obstruction A098864/LDS/N/110/Rev A - Distribution of Made Ground A098864/LDS/N/113/Rev C - Identified Remediation Criteria Exceedances Requiring Treatment A098864/LDS/N/120 – Coking Works Constraints Plan A098864/LDS/N/121/Rev A –Stockpile Location Plan A098864-7/LDS/N/03 – Western Site & Ponds Remediation Criteria and Enabling Works Upper 1m Criteria Exceedances A098864-7/LDS/N/05 – Former Coking Works Remediation Criteria and Enabling Works upper 1m Criteria Exceedances Appendices A - Report Conditions B – Planning Conditions C – Development Criteria for Private Gardens and Managed Landscaping and Criteria for Import D – Remediation Criteria, Enabling Works Upper 1m Criteria and Public Open Space (Park Criteria) E – Enabling Works Flow Chart January 2020 www.wyg.com creative minds safe hands Simpson Park (Former Harworth Colliery) Remediation Strategy 1.0 Introduction 1.1 Instruction WYG Environment Planning Transport Ltd (WYG) was commissioned by Harworth Group (HG) to undertake environmental consultancy services including the production of a Remediation Strategy for the former Harworth Colliery site to support the proposed development of the site to residential end use. The site is located at Harworth, Nottinghamshire. A site location plan is provided as Drawing A098864/LDS/N/101. This document sets out the general strategy for the proposed remediation and summarises how the works are to be implemented. The remediation strategy has been developed in conjunction with the earthworks strategy, which has also been prepared by WYG (2018b). This Remediation Strategy relates