Runfold Central Area

Environmental Permit Application

Environmental Risk Assessment

Document Reference 2445/R/07/03

August 2020

Prepared For: SUEZ Recycling and Recovery UK Limited

Environmental Risk Assessment Runfold Central Area Restoration

Runfold Central Area

Environmental Permit Application

Environmental Risk Assessment

Document Reference 2445/R/07/03

August 2020

Carried Out For: Prepared By:

Bold Business Centre Bold Lane Guildford Road Sutton Runfold St. Helens Farnham WA9 4TX Surrey GU10 1PB Telephone: 01925 291111

Telephone: 01252 782255

August 2020 2445/R/07/03 Environmental Risk Assessment Runfold Central Area Restoration

DOCUMENT INFORMATION AND CONTROL SHEET

Document Status and Approval Schedule

Issue History Issue Status Contributors Signature Date Prepared By: 14/02/2020 Phil Roberts

Checked By: 14/02/2020 1 Issued to EA Claire Finney

Approved by: 14/02/2020 John Baxter

Prepared By: E Greenhalgh 22/07/2020 Emma Greenhalgh

Checked By: 23/07/2020 2 Reissued to EA Phil Roberts

Approved by: 23/07/2020 Phil Roberts

Prepared By: E Greenhalgh 25/08/2020 Emma Greenhalgh

Checked By: 25/08/2020 3 Reissued to EA Phil Roberts

Approved by: 25/08/2020 Phil Roberts

DISCLAIMER

This consultancy contract was completed by TerraConsult Ltd on the basis of a defined programme and scope of works and terms and conditions agreed with the client. This report was compiled with all reasonable skill, and care, bearing in mind the project objectives, the agreed scope of works, the prevailing site conditions, the budget, the degree of manpower and resources allocated to the project as agreed.

TerraConsult Ltd cannot accept responsibility to any parties whatsoever, following the issue of this report, for any matters arising which may be considered outwith the agreed scope of works. This report is issued solely to the client and TerraConsult cannot accept any responsibility to any third parties to whom this report may be circulated, in part or in full, and any such parties rely on the contents at their own risk.

August 2020 2445/R/07/03 Environmental Risk Assessment Runfold Central Area Restoration

CONTENTS

Section Page

1 INTRODUCTION ...... 1 1.1 Background ...... 1 1.2 Other Relevant Risk Assessments ...... 1 1.3 Assessment of environmental risk ...... 2 2 SCOPE OF THE ASSESSMENT ...... 3 2.1 Proposed Operations...... 3 2.2 Potential Hazards ...... 3 2.3 Hazard Pathways ...... 6 2.4 Hazard Receptors ...... 7 2.5 Sensitive Habitats ...... 8 3 RISK ASSESSMENTS AND ACCIDENT MANAGEMENT PLANS ...... 9 3.1 Risk Assessments ...... 9 4 CONCLUSION ...... 17

APPENDICES

Appendix A: Groundwater Risk Assessment Appendix B: Soil Gas Risk Assessment Appendix C: Dust and Emission Management Plan Appendix D: Environment Agency Conservation Screen

August 2020 2445/R/07/03 Environmental Risk Assessment Runfold Central Area Restoration

1 INTRODUCTION

1.1 Background

1.1.1 This report has been prepared to support a bespoke permit application for a deposit of waste for recovery activity by SUEZ Recycling and Recovery UK Limited (SUEZ) to restore the Central Area of Runfold Quarry located in Farnham, Surrey. Reference has been made to the Agency’s guidance on ‘risk assessments for your environmental permit’ available as web- based guidance. This report is a risk assessment undertaken in accordance with the aforementioned Agency guidance and also provides justification for the use of other more specific risk assessment methodologies where appropriate.

1.1.2 The guidance indicates that the following parameters require assessment:

• Odour; • Noise and vibration; • Fugitive emissions including dust, mud and pests; and • Accidents.

1.1.3 The guidance requires that receptors are considered with regard to the proximity of the site. Table 1 in Section 2.4 of this report identifies the most likely sensitive receptors adjacent to site.

1.1.4 The site has been used historically for the extraction of sand with the wider site developed as a sand and gravel quarry. The quarried areas surrounding the Central Area have been progressively restored by landfilling with a range of different waste types and containment engineering specifications. The site as a whole is surrounded by a number of highways, commercial and residential properties, woodland and agricultural land, which may be considered receptors. The current site access is via the existing quarry access road, which joins the public highway at Guildford Road close to the junction with the A31. All other receptors are listed in Table 1 of this report and detailed on drawing 2445/005/01.

1.2 Other Relevant Risk Assessments

1.2.1 The impacts of fugitive emissions to groundwater and surface water are considered in the accompanying Groundwater Risk Assessment (GRA) report attached at Appendix A. It is proposed to use inert waste only for the restoration scheme and because of this it is considered that there will be no potential impacts resulting from landfill gas generation from the restoration material. As the restoration activity will take place directly on and adjacent to historical landfilling activities, the secondary effects of restoration material emplacement have been considered in the Soil Gas Risk Assessment attached in Appendix B. Waste mass and containment engineering stability are addressed in the Environmental Setting and Site Design (ESSD) report referenced 2445/R/03/01 which accompanies this permit application. An assessment of risk to sensitive European designated habitats and nearby nature and heritage conservation sites are considered in this report.

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1.3 Assessment of environmental risk

1.3.1 Agency guidance requires that everyone applying for a new environmental permit (other than a standard permit) or variation to an existing permit should present information in the form of risk assessment tables, one table each for odour, noise, fugitive emissions (including dust, mud and litter) and pests, birds and vermin and global warming potential. Identification of accidents scenarios and their prevention through operational management should also be detailed.

1.3.2 Each table should identify the hazard, the potential receptors and the pathway from the hazard to those receptors. In addition, the tables should also include the preventative risk management practices to be employed along with an assessment of the mitigated risk.

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2 SCOPE OF THE ASSESSMENT

2.1 Proposed Operations

2.1.1 This environmental permit application is for the restoration of the Runfold Central Area using inert wastes and a suitable surface soil forming layer. The majority of the recovery material will be placed in the main void in the Central Area. The maximum thickness of fill to be imported will be 9 to 13 metres which will overlay the shallowest thickness (and in some places the absence) of in-situ waste material. The profile of restoration material will be deepest in the parts of the Central Area site where Made Ground deposits are shallow or absent.

2.2 Potential Hazards

Odour 2.2.1 The material to be used in the restoration scheme at the site is very unlikely to be a significant source of odour. Experience from similarly permitted operations (deposit for recovery schemes and inert landfill sites) has shown that the low or negligible organic content results in minimal landfill gas generation and no production of malodorous leachate. The very limited waste types to be accepted remove the need to produce an odour management plan.

Noise and Vibration 2.2.2 The risk of excessive noise and vibration associated with the proposed activity will be restricted primarily to movement and operation of site plant. The restoration activity will take place within an area which has a long history of quarrying and landfilling activities. The majority of the restoration material will be placed in the base of a void which is set below surrounding ground levels. The activity will also benefit from physical noise attenuation barriers offered by existing perimeter bunds, close boarded fencing, established woodland or elevated topography associated with the surrounding landfill sites.

2.2.3 The movement of Heavy Goods Vehicle (HGV) to, from and around the Site will be a feature of the activity, however the intensity of vehicle movements will not be in excess of that carried out previously at the site for the historical landfilling operations. There may be an overlap of a few months with landfilling activities within Area C (which is due to be completed by 31 December 2020) to the southwest with the Central Area restoration scheme resulting in an increase in HGV movements above normal levels. It is understood that there have been no noise complaints received in relation to activities carried out in the Central Area historically demonstrating the noise and vibration management measures already in place in that area are effective. Vehicle movement and operation associated with the proposed activity is therefore unlikely to generate a noise impact.

2.2.4 The Operator will continue to give due regard to minimising noise and vibration associated with vehicles and plant. All plant and equipment will be maintained in accordance with the manufacturer's recommendations to reduce unnecessary noise from engines or bodywork. Noise levels will be taken into consideration during the selection of Site equipment, with quieter models being utilised where this is practical and economically viable. Where practicable, engines will be switched off when not in use. Deposit of material will not be undertaken from height to reduce noise / vibration. On site speed limits will be enforced to prevent excessive engine noise. All site roads will be maintained in a state of good repair to reduce noise from the passage of vehicles.

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2.2.5 The Lodge off Guildford Road is 55 m from the main entrance and 30 m from the closest point of the conveyor tunnel cutting, located on the opposite side of Guildford Road, and therefore considered the closest receptor. There is a significant tree screen between the Lodge and the site, and a close boarded fence to help reduce noise emissions near the Site entrance. The base of the conveyor tunnel cutting is approximately 8 m below surrounding ground levels at its deepest point near the Site entrance and is also surrounded by the same fence. As the cutting is to be infilled to surrounding ground levels (not mounded) this means the line of sight between vehicles operating in the cutting and the Lodge is obscured until the placement of the final restoration soil layers. The period of infilling in the cutting will be relatively short as it has a significantly lower volume than the main site and the restricted space means there is less room for multiple vehicles to operate, therefore reducing the noise levels. Vehicles accessing the site will follow the haul road south past the weighbridge and then down gradient into the Central Area. This will also limit the line of sight from the Lodge and where the activity is being carried out closest to this receptor which may generate noise, for example the wheel wash.

2.2.6 In addition to the regulatory requirements of the permit, The Operator has a standing obligation to meet the requirements of the planning permission (WA/2018/0016) relating to noise level restrictions. These are summarised below:

• Noise from the permitted operation shall not exceed 55dB LAeq, 1 hour when measured at (or calculated as at) a height of about 1.2m and at least 3.5m from the façade of any noise sensitive property, except during the soil stripping/ replacement operations when noise shall not exceed 70dB LAeq 1 hour at noise sensitive properties. • All vehicles and plant on site shall be fitted with silencers in accordance with the manufacturer’s recommendation and shall operate to minimise noise emissions. • All moveable plant and machinery based on site shall be fitted with a reversing warning system which will minimise, as far as reasonably practical and subject to maintaining safety, the generation and level of noise emissions from that system.

2.2.7 Landfill gas and leachate will not be generated in quantities that will result in an adverse impact to human receptors or the environment (see Appendix A and B). There is no requirement to actively manage gas or leachate, and consequently there will be no noise associated with their management. Consideration of active landfill management controls has not been included in Table 2. The risks associated with other sources of noise and appropriate control measures are detailed in Table 2.

Dust 2.2.8 Particulate emissions can arise from the deposit of potentially dry or dusty wastes, uncovered dusty waste deposits, un-vegetated areas (e.g. preparatory engineering works), vehicle movements on unpaved or dusty roads and settlement of surface water run-off laden with suspended solids.

2.2.9 The weighbridge operator will enforce strict waste acceptance protocols to manage the deposit of potentially dusty wastes. All site haul roads will be maintained and cleaned as necessary to minimise the accumulation of mud or dusty materials. All vehicles leaving site will pass through a wheel wash to remove excess mud, and in addition to this, all vehicles on site shall not exceed the 15 mph speed limit within the site boundary. The risk associated with fugitive

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dust emissions are detailed in Table 3 and the Dust and Emission Management Plan in Appendix C.

Mud 2.2.10 Mud can be trailed onto the highway by vehicles leaving the site after picking up mud from unpaved roads or from the point of deposit. Access to the site will be via the existing site entrance to the north of the site. Movements to the Central Area of the site will be via maintained access roads and wheel wash. A combination of the distance travelled on the internal haul roads and the wheel wash will ensure any accumulated mud will be removed prior to the vehicle leaving site. If a vehicle is observed to be particularly muddy at point of leaving the site, the driver will be redirected through the wheelwash.

2.2.11 The primary receptor to entrained mud will be the Guildford Road, secondary to that will be the A31 to the east of Site. The wheel wash will be maintained throughout the duration of the activity to ensure efficient operation and the haul roads will be maintained by road sweeper. Adjacent access routes will be regularly inspected and cleaned as necessary as part of the current landfill site management controls. The risks associated with entrained mud are considered in Table 4.

Litter 2.2.12 Waste Acceptance Protocols will restrict the waste types to be brought to site. These are very unlikely to contain materials which could present a risk of wind-blown litter and litter will not be considered further by this assessment.

Pests and Vermin 2.2.13 The materials to be accepted for the recovery activity will not contain any wastes e.g. food that could attract pests or vermin that may in turn adversely impact wildlife on adjacent sites. The potential risk of pests or vermin being attracted to the site is considered to be negligible and will not be considered further by this assessment.

Contaminated water / acidification 2.2.14 The leaching of contaminants from the waste is expected to be negligible. All potentially sensitive controlled groundwater and surface water bodies are located at a distance greater than the minimum screening threshold for a SR2015No.39 and are therefore not considered to be at risk. There is no direct hydraulic link to the land designated as a SSSI or other habitats. The risks from contaminated water are considered further in the attached Groundwater Risk Assessment.

Nutrient Enrichment 2.2.15 The wastes to be used are predominantly soils and stones and such wastes are expected to have a low organic and nutrient content. The risk of nutrient-rich dust emissions or enrichment from emissions to water is considered to be negligible and will not be considered further.

Physical Damage 2.2.16 Plant / vehicle movements will be restricted to the permitted area on the restoration area within the existing quarry site. Activities on site will pose no risk of physical damage to flora and fauna on the adjacent land. The risk of physical damage will not be considered further by this assessment.

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Siltation 2.2.17 Water containing elevated quantities of suspended solids can impact sensitive flora and fauna. There is no direct pathway where surface water run-off from the site could access the River Wey to the west. Siltation will not be considered further in this risk assessment.

Final Landform 2.2.18 The purpose of the waste recovery activity is to restore Runfold Central Area to agricultural pasture mandated by planning permission referenced WA/2018/0016, with specific reference to the attached Proposed Restoration Masterplan (at Environmental Permit Surrender) drawing referenced Rsp-PLS-R-0518-02. The central area will be restored to fenced grassland for grazing and grassland cropping, surrounded by woodland and natural regeneration areas.

2.2.19 The Groundwater Risk Assessment, Soil Gas Risk Assessment and ESSD describe in detail the material proposed for the Central Area recovery scheme and characterise the low impact this inert material will have in terms of emissions to groundwater, landform stability or gas generation. The conclusion of all these assessments was that the proposed recovery activity will not have an adverse impact on human health or the environment during its operational phase. On completion, the risks associated with the proposed recovery activity will reduce further. The Operator will place restoration soils and implement the planting, access and fencing measures described above as soon as practicably possible, restoring the site to agricultural use as appropriate.

2.2.20 The most immediate receptors to material in the landform are any arable cropping cultured at the Site or animals gazing on it. The proposed activity’s adherence to the stringent WAC for inert landfills means the imported material will contain very low concentrations of potentially leachable substances. The low concentrations of substances in the restoration material means it is unlikely to have a phytotoxic effect on the growth of vegetation. Furthermore, livestock will not have access to the Central Area until a suitable pasture has become established and any animals are unlikely to come into direct contact with any exposed inert material. The potential risk from the infill materials to the range of agricultural end uses proposed is considered to be negligible.

Global Warming 2.2.21 The inert waste to be deposited means that negligible quantities of biogenic gas will be generated by the deposited wastes. It is therefore expected that the site will present a negligible risk in terms of global warming potential and this will not be considered further in this assessment.

2.3 Hazard Pathways

2.3.1 When identifying the receptors, the closest and the most sensitive (if different from the closest) have been considered in each direction from the hazard. Account has been taken of the mechanism of transport to the sensitive receptor e.g. proximity to highway, access / egress points for mud and wind direction for airborne dust.

2.3.2 Weather and wind statistics based on a 5 year average are taken from the Farnborough Airport1, which is located 6 km NNW from the site boundary and considered representative of

1 https://www.windfinder.com/windstatistics/farnborough_airport

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the conditions at the Site. An assessment of receptor locations within 500 m of the proposed permit boundary relevant to prevailing wind direction has been summarised in Table 1.

Probability of Exposure 2.3.3 Probability of exposure is determined by the distance of the receptor to the site and the likelihood of the hazard reaching the receptor i.e. frequency of prevailing wind in that direction. The probability of exposure is irrespective of the type of hazard presented.

2.4 Hazard Receptors

2.4.1 A review of the sensitive receptors within 500 m is listed in Table 1 below. The location of these receptors is indicated on the Site Location and Sensitive Receptors drawing referenced 2445/005/01 attached to the ESSD. All potentially habitat receptors including those >500 m from the site are considered in detail in Section 2.5.

Table 1: Proximity of Environmental Receptors to Site Boundary Direction Frequency No. Receptor Category Distance (m) from Site Down Wind (%) 1 Barfield School School 230 E 2.6 2 Playing Field Field 10 NE 17 Residential Properties off 3 Residential 420 E 2.6 Crooksbury Road 4 Woodland Habitat 345 SE 2.2 5 450 SSE 2.2 Residential Properties off 6 Residential 370 S 3.5 Compton Way 7 210 SSW 5.5 8 Residential Properties off Moor 250 SW 3.5 Residential 9 Park Lane 305 W 4.7 10 Moor Park Lane Road 305 SW to W 3.5 to 4.7 11 Ancient Woodland Habitat 470 WSW 3.6 12 River Wey Habitat 270 SW to W 3.5 to 4.7 Residential Properties off Moor 13 Residential 210 W 4.7 Park Lane (north) 14 Ancient Woodland Habitat 360 W 4.7 Residential Properties off 15 Residential 150 NW 5.1 Guildford Road Residential Properties off 16 Residential 430 NW 5.1 Hurlands Close 80 (from entrance) W 5.1 17 The Princess Royal Pub / Hotel 185 (main activity) N 6.8 0 (from entrance) E to W 2.6 to 4.7 18 Guildford Road Road <10 (main activity) NW to NE 5.1 to 17 310 (from entrance) E to W 2.6 to 4.7 19 A31 Road 175 (main activity) NW to NE 5.1 to 17 House (The Lodge) off Guildford 55 (from entrance) E 2.6 20 Residential Road 30 (main activity) NE 17 21 Fields to north of A31 Agricultural 210 N 3.5 22 Farm building north of A31 Agricultural 284 N 6.8 23 Equestrian Centre Leisure 445 N 6.8 24 Farm buildings Agricultural 460 NE 17 25 Public footpath leading to North Leisure <5 All All

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Direction Frequency No. Receptor Category Distance (m) from Site Down Wind (%) Downs Way Future agriculture receptor (crops 26 Agricultural <5 All All / animals)

2.5 Sensitive Habitats

2.5.1 A conservation screen request to the Agency established the location of all potentially sensitive habitats in the vicinity of the site (Appendix D). The habitats screen identified the following receptors within their relevant screening distances (distance referenced is closest point between site and receptor):

• Sites of Special Scientific Interest (SSSI o Moor Park SSSI (1.1 km to south) • Site of Nature Conservation Importance o River Wey – North (410 m to west), o Snayleslynch - River Wey (610 m to northwest) o Tongham Pond and Tices Meadow (910 m to northeast) • Ancient Woodland (all unnamed) o West (360 m) o North West (1 km) o West, southwest (485 m) o South, south west (955 m) • Protected Species o River Wey for Brown Trout, European Eel, Bullhead and Brook Lamprey (410 m to west) • Protected Habitats o Deciduous woodland (surrounding site) o Chalk Rivers (410 m to west)

2.5.2 Were it not for the quantity of restoration material required, the proposed recovery activity would meet the requirements of a standard rules permit. This means the proposed activity is outside the screening distances of the types of potentially sensitive environmental receptors listed above. In all cases, the proposed activity is at least double the distance from the sensitive receptors as specified in the standard rules permit. None of the ecological receptors have a physical link to the site i.e. waste will not be placed in or near them, nor will vehicles pass through or close to them.

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3 RISK ASSESSMENTS AND ACCIDENT MANAGEMENT PLANS

3.1 Risk Assessments

3.1.1 The specific risk assessments completed for noise, dust and fugitive emissions (mud on the road) are detailed in Tables 2 to 4 below. In many cases there is an inter-relationship between these specific risk assessments and meteorological conditions and where relevant this has been identified. The pathway is determined by the location of the receptor relative to the site, the distance from the site boundary (m) and the frequency (likelihood) the prevailing wind will blow in the direction of the receptor (%) as determined by windrose data.

Mitigated Risk 3.1.2 The Mitigated Risk is the residual risk presented by the Hazard after control measures have been instigated.

Environmental Accidents 3.1.3 The Agency guidance requires the completion of an Accidents Risk Assessment and Management Plan. This should assess potential hazards associated with the proposed activity not described in the sections above. Accidents Risk Assessment and Management Plan are in Tables 2 - 5.

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Table 2. Noise and Vibration Risk Assessment and Management Plan Receptor Hazard / Probability of Residual Dist Direc Freq Unmitigated Consequence Overall Risk Risk Management Pathway No. Exposure Risk (m)* n (%)** Medium - proximity High – sensitive to noise 1 230 E 2.6 High to site annoyance (school)

High – close High – sensitive to noise 2 10 NE 17 High Most site activities will be behind proximity annoyance (school) perimeter bunds and below ground level. Waste recovery activities are Low – distant from High – sensitive to noise 3 420 E 2.6 Medium unlikely to generate noise in excess site annoyance (residential) of that associated with previous/current sand extraction and Medium - proximity Low – not sensitive to noise landfilling activities. 4 345 SE 2.2 Low to site (woodland) On site speed limits will be enforced and internal site roads will be Low – distant from High – sensitive to noise 5 450 SSE 2.2 Medium maintained. site annoyance (residential)

Appropriate maintenance of site Medium - proximity High – sensitive to noise Noise through 6 370 S 3.5 High vehicles in accordance with the air and to site annoyance (residential) manufacturer’s or supplier’s Vibration instructions through Medium - proximity High – sensitive to noise Low 7 210 SSW 5.5 High ground from: to site annoyance (residential) Planning condition restricts site deposition of operational hours and noise levels waste Medium - proximity High – sensitive to noise 8 250 SW 3.5 High Where practicable, engines to be to site annoyance (residential) switched off when not in use.

Medium - proximity High – sensitive to noise 9 305 W 4.7 High Silencers will be used on vehicles. to site annoyance (residential) Should it prove necessary, 3.5 to Medium - proximity Low – not sensitive to noise alternatives to reversing bleepers on 10 305 SW Low 4.7 to site (road) site vehicles will also be considered

Low – distant from Low – not sensitive to noise Deposit of material will not be 11 470 WSW 3.6 Low site (woodland) undertaken from height to reduce noise / vibration.

SW to 3.5 to Low – distant from Low – not sensitive to noise 12 270 Low W 4.7 site (river)

Medium - proximity High – sensitive to noise 13 210 W 4.7 High to site annoyance (residential)

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Receptor Hazard / Probability of Residual Dist Direc Freq Unmitigated Consequence Overall Risk Risk Management Pathway No. Exposure Risk (m)* n (%)** Medium - proximity Low – not sensitive to noise 14 360 W 4.7 Low to site (woodland)

High – close High – sensitive to noise 15 150 NW 5.1 High Most site activities will be behind proximity annoyance (residential) perimeter bunds and below ground level. Waste recovery activities are Low – distant from High – sensitive to noise 16 430 NW 5.1 Medium unlikely to generate noise in excess site annoyance (residential) of the that associated with previous sand extraction and landfilling High – close High – sensitive to noise 17 185 N 6.8 High activities. proximity annoyance (hotel) On site speed limits will be enforced NW to 5.1 ti High – close Low – not sensitive to noise 18 10 Low and internal site roads will be NE 17 proximity (road) maintained.

NW to 5.1 to High – close Low – not sensitive to noise Appropriate maintenance of site 19 175 Low Noise through NW 17 proximity (road) vehicles in accordance with the air and manufacturer’s or supplier’s Vibration High – close High – sensitive to noise instructions 20 30 NE 17 High Low through ground proximity annoyance (residential) from: deposition Planning condition restricts site of waste Medium - proximity Low – minimal sensitivity to operational hours and noise levels 21 210 N 3.5 Low to site noise (agricultural) Where practicable, engines to be Medium - proximity Low – minimal sensitivity to switched off when not in use. 22 284 N 6.8 Low to site noise (agricultural) Silencers will be used on vehicles. High – sensitive to noise Low – distant from 23 445 N 6.8 annoyance (leisure / Medium site Should it prove necessary, commercial) alternatives to reversing bleepers on Low – distant from Low – minimal sensitivity to site vehicles will also be considered 24 460 NE 17 Low site noise (agricultural) Deposit of material will not be High – pedestrians High - sensitive to noise undertaken from height to reduce 25 <5 All All High crossing site annoyance noise / vibration.

Low – restoration Low – minimal sensitivity to 26 <5 All All Low will be completed noise (agricultural) *Distance to receptor from Site Boundary. **Frequency receptor is downwind of the site (% 5 yearly average).

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Table 3. Fugitive Dust Emission Risk Assessment and Management Plan Receptor Hazard / Residual Dist Direc Freq Probability of Exposure Unmitigated Consequence Initial Risk Risk Management Pathway No. Risk (m)* n (%)** Medium - proximity to site, High – sensitive to dust 1 230 E 2.6 Medium infrequently downwind annoyance (school)

High – sensitive to dust High – close proximity, 2 10 NE 17 annoyance (school playing Medium frequently downwind field) Weighbridge will conduct assessment of waste inputs and Low – distant from site, High – sensitive to dust 3 420 E 2.6 Low impose controls and restriction on infrequently downwind annoyance (residential) potentially dusty waste.

Medium - proximity to site, Medium – dust may form No excessively dusty wastes to be 4 345 SE 2.2 Medium infrequently downwind smothering sediment (habitat) accepted at the site. Dusty waste identified at point of deposit will be subject to deeper burial. Low – distant from site, High – sensitive to dust 5 450 SSE 2.2 Low infrequently downwind annoyance (residential) On site vehicle speed limit enforced to ensure that vehicle movements do not generate excessive dust. Fugitive dust Low – distant from site, High – sensitive to dust 6 370 S 3.5 Medium emissions infrequently downwind annoyance (residential) Dampening of site roads/surfaces as generated by: necessary using a tanker during dry Vehicle Medium - proximity to sit, High – sensitive to dust Low 7 210 SSW 5.5 High periods. movements and occasionally downwind e annoyance (residential)

handling of Daily visual inspection by waste on site Medium - proximity to site, High – sensitive to dust appropriate site staff at suitable 8 250 SW 3.5 High infrequently downwind annoyance (residential) locations taking account of the prevailing wind direction. Daily High – sensitive to dust consideration given to tipping 9 305 W 4.7 Medium - proximity to site Low annoyance (residential) locations based on prevailing wind.

All vehicles will use wheel wash 3.5 to Medium - proximity to site, Medium – transient dust 10 305 SW Medium facilities to prevent mud / dust being 4.7 occasionally downwind annoyance (road) trailed onto adjacent roads and creating a hazard / nuisance. A road Low – distant from site, Medium – dust may form sweeper will be used to clear any 11 470 WSW 3.6 Low infrequently downwind smothering sediment (habitat) dust deposited on highways if required

SW to 3.5 to Low – distant from site, Low – not sensitive to dust 12 270 Low W 4.7 occasionally downwind (river)

Medium - proximity to site, High – sensitive to dust 13 210 W 4.7 High occasionally downwind annoyance (residential)

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Receptor Hazard / Residual Dist Direc Freq Probability of Exposure Unmitigated Consequence Initial Risk Risk Management Pathway No. Risk (m)* n (%)** Medium - proximity to site, Medium – dust may form 14 360 W 4.7 Medium occasionally downwind smothering sediment (habitat)

High – close proximity, High – sensitive to dust 15 150 NW 5.1 High Weighbridge will conduct occasionally downwind annoyance (residential) assessment of waste inputs and impose controls and restriction on Low – distant from site, High – sensitive to dust potentially dusty waste. 16 430 NW 5.1 Low occasionally downwind annoyance (residential) No excessively dusty wastes to be High – close proximity, High – sensitive to dust accepted at the site. Dusty waste 17 185 N 6.8 High occasionally downwind annoyance (pub / hotel) identified at point of deposit will be subject to deeper burial.

NW to 5.1 to High – close proximity, Medium – transient dust 18 10 High On site vehicle speed limit enforced NE 17 frequently downwind annoyance (road) to ensure that vehicle movements do not generate excessive dust. Fugitive dust NW to 5.1 to High – close proximity, Medium – transient dust emissions 19 175 High NW 17 frequently downwind annoyance (road) Dampening of site roads/surfaces as generated by: necessary using a tanker during dry Vehicle Low periods. movements and High – close proximity, High – sensitive to dust 20 30 NE 17 High handling of frequently downwind annoyance (residential) Daily visual inspection by waste on site Medium - proximity to site, Low – low sensitivity to dust appropriate site staff at suitable 21 210 N 3.5 Low infrequently downwind (fields) locations taking account of the Low – minimal sensitivity to prevailing wind direction. Daily 22 284 N 6.8 Medium - proximity to site Medium dust (agricultural) consideration given to tipping High – sensitive to dust locations based on prevailing wind. 23 445 N 6.8 Low – distant from site annoyance (leisure / Low commercial) All vehicles will use wheel wash facilities to prevent mud / dust being Low – minimal sensitivity to 24 460 NE 17 Low – distant from site Low trailed onto adjacent roads and dust (agricultural) creating a hazard / nuisance. A road sweeper will be used to clear any High – pedestrians High - sensitive to dust dust deposited on highways if 25 <5 All All High crossing site annoyance required

Low – restoration will be Low – minimal sensitivity to 26 <5 All All Low completed dust (agricultural) *Distance to receptor from Site Boundary. **Frequency receptor is downwind of the site (% 5 yearly average).

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Table 4. Mud Fugitive Emission Risk Assessment and Management Plan Receptor Hazard / Overall Residual Dist Direc Freq Probability of Exposure Unmitigated Consequence Risk Management Pathway No. Risk Risk (m)* n (%)**

High – site entrance High – mud on road hazard 1 230 E 2.6 High < 500 m to school by road and dust generation Tarmac surface in site entrance / access roads will significantly reduce Low – receptor not 2 10 NE 17 Not applicable Low disturbance of ground and sensitive to mud on road production of fugitive mud. Tarmac surfaces will also be easier to clean Low – site entrance 3 420 E 2.6 Not applicable Low and remove mud before it becomes > 500 m to houses by road a problem off-site.

Low – receptor not All departing vehicles will be 4 345 SE 2.2 Not applicable Low sensitive to mud on road required to use the automatic wheel wash at least once to remove accumulated mud or debris. Site Low – site entrance 5 450 SSE 2.2 Not applicable Low staff at the weighbridge will check > 500 m to houses by road departing vehicles. The wheel wash will be subject to regular maintenance to ensure its Fugitive mud Low – site entrance 6 370 S 3.5 Not applicable Low effectiveness. emissions on > 500 m to houses by road

roads The integrity of the haul roads will be generated by: Low – site entrance 7 210 SSW 5.5 Not applicable Low regularly assessed to ensure the Low Vehicle > 500 m to houses by road surface is not accumulating mud that movements and could be tracked off site. Repairs will handling of Low – site entrance 8 250 SW 3.5 Not applicable Low be made to surfaced roads (e.g. waste on site > 500 m to houses by road concrete / tarmac) or where potholes

/ low points are causing water or Low – site entrance 9 305 W 4.7 Not applicable Low mud to accumulate. > 500 m to houses by road Internal roads will be maintained and 3.5 to Low – site entrance cleaned as necessary using a road 10 305 SW Not applicable Low 4.7 > 500 m to houses by road sweeper. Where mud on the public roads has been positively identified as being associated with the site, Low – receptor not then road sweepers will be 11 470 WSW 3.6 Not applicable Low sensitive to mud on road employed without delay to remove the mud / debris.

SW to 3.5 to Low – receptor not 12 270 Not applicable Low A daily visual inspection will be W 4.7 sensitive to mud on road made of the public highway and recorded.

Low – site entrance 13 210 W 4.7 Not applicable Low > 500 m to houses by road

August 2020 2445/R/07/03 Page 14 of 17 Environmental Risk Assessment Runfold Central Area Restoration

Receptor Hazard / Overall Residual Dist Direc Freq Probability of Exposure Unmitigated Consequence Risk Management Pathway No. Risk Risk (m)* n (%)** Low – receptor not 14 360 W 4.7 Not applicable Low Tarmac surface in site entrance / sensitive to mud on road access roads will significantly reduce disturbance of ground and High – site entrance High – mud on road hazard 15 150 NW 5.1 High production of fugitive mud. Tarmac < 500 m to house by road and dust generation surfaces will also be easier to clean and remove mud before it becomes Low – site entrance 16 430 NW 5.1 Not applicable Low a problem off-site. > 500 m to houses by road All departing vehicles will be High – site entrance High – mud on road hazard required to use the automatic wheel 17 185 N 6.8 High < 500 m to pub by road and dust generation wash at least once to remove accumulated mud or debris. Site NW to 5.1 to High – site entrance High – mud on road hazard staff at the weighbridge will check 18 10 High NE 17 directly adjacent to road and dust generation departing vehicles. The wheel wash will be subject to regular NW to 5.1 to High – site entrance High – mud on road hazard maintenance to ensure its 19 175 High Fugitive mud NW 17 < 500 m to A31 by road and dust generation effectiveness. on road generated by: The integrity of the haul roads will be High – site entrance High – mud on road hazard Vehicle 20 30 NE 17 High regularly assessed to ensure the Low < 500 m to house by road and dust generation movements and surface is not accumulating mud that handling of could be tracked off site. Repairs will Low – receptor not waste on site 21 210 N 3.5 Not applicable Low be made to surfaced roads (e.g. sensitive to mud on road concrete / tarmac) or where potholes / low points are causing water or Low – receptor not 22 284 N 6.8 Not applicable Low mud to accumulate. sensitive to mud on road Internal roads will be maintained and Low – site entrance High – mud on road hazard cleaned as necessary using a road 23 445 N 6.8 Low > 500 m to houses by road and dust generation sweeper. Where mud on the public roads has been positively identified Low – receptor not as being associated with the site, 24 460 NE 17 Not applicable Low sensitive to mud on road then road sweepers will be employed without delay to remove Low – receptor not the mud / debris. 25 <5 All All Not applicable Low sensitive to mud on road A daily visual inspection will be made of the public highway and Low – restoration will be 26 <5 All All Not applicable Low recorded. completed *Distance to receptor from Site Boundary. **Frequency receptor is downwind of the site (% 5 yearly average).

August 2020 2445/R/07/03 Page 15 of 17 Environmental Risk Assessment Runfold Central Area Restoration

Table 5: Accident Management Plan Overall Mitigated Hazard Receptor Pathway Probability Consequence Risk Management Risk Risk Fuel / engine oil Fuel and engine oils stored away from proposed installation Leak or damage to with appropriate secondary containment and spillage portable fuel Base of High - pollution of contingencies; Groundwater Low Medium Low bowser, static fuel quarry groundwater Site vehicles will not be refuelled within installation area; storage tank or site Site vehicles and plant subject to regular preventative vehicles maintenance in accordance with EMS procedures. High - pollution of Wastes to be accepted at site will effectively be inert, have a groundwater low organic content and inherently non-combustible in Fire Base of through firewater nature, or through production of landfill gas; Uncontrolled burning Groundwater Low Medium quarry run-off or leaks Site vehicles and plant subject to regular preventative of wastes or site Low from damaged maintenance in line with site EMS procedures; vehicles. equipment Fire control equipment will be on hand, with major incidents

Receptors listed Medium - smoke / to be dealt with by the Fire Brigade in accordance with site Airborne Low Medium in Table 1 above odour annoyance EMS Procedures. No smoking except in designated areas.

High - danger of Fuel is stored in separate installation with appropriate Site staff Airborne Low Medium serious injury controls to prevent fire or explosion (i.e. no smoking on site); Explosion Compressed gases not required and therefore present for Compressed gas High - pollution operation of installation. Site workshop located away from Low cylinders or fuel of groundwater installation with appropriate controls in accordance with EMS Base of storage tank Groundwater Low through leaks Medium procedures; quarry from damaged Low organic content of waste will generate negligible equipment volumes of landfill gas and will not present an explosion risk. Medium - odour Waste acceptance protocols will exclude the deposit of Wastes deposited Receptors listed annoyance or chemically reactive wastes. Those accepted will be of an Chemical reaction of Airborne Low Medium Low in Table 1 above smoke from inert nature and will not generate noxious gases or incompatible wastes oxidising agents contaminating leachate. High - pollution of groundwater Existing site security will prevent access by unauthorised Base of Vandalism Groundwater Low through leaks from Medium persons. Vehicles will be kept overnight in a secure area Damage to site quarry with appropriate security measures; damaged Low vehicles, fuel equipment Wastes not expected to require exposed active gas or bowsers leachate control infrastructure which could be subject to Receptors listed Medium - odour Airborne Low Medium damage. in Table 1 above annoyance

August 2020 2445/R/07/03 Page 16 of 17 Environmental Risk Assessment Runfold Central Area Restoration

4 CONCLUSION

4.1.1 The following risk assessments were undertaken as part of this application and have determined that the proposed installation will not have a significant impact on the environment:

• Groundwater Risk Assessment (ref: 2445/R/10/03; and • Soil Gas Risk Assessment (ref: 2445/R/012/01).

4.1.2 The remaining operational hazards associated with the proposed installation have been considered in the tables above. It has been concluded that with the use of appropriate mitigating controls where necessary, the installation will not present a significant risk to surrounding receptors.

August 2020 Ref. 2445/R/07/03 Page 17 of 17 Environmental Risk Assessment Runfold Central Area Restoration

DRAWINGS

August 2020 Ref. 2445/R/07/03 N TerraConsult TerraConsult 23 24

22 21

16 19 17 15 18 20

2 1

14 13 26

25 3

10 12 9

8 4 11 7

6 5 Key

Site Boundary

500m Sensitive Receptor Boundary

Sensitive Receptor

Site Scale NTS @ A4 Drawing No. 2445.005.08 Runfold Central Rev Date Description A 08/20 Amendments Bold Business Centre, Bold Lane, Area Restoration B 08/20 Amendments Sutton, St Helens WA9 4TX Client Title

Sensitive Receptor Plan File 2445.5.001 Sensitive Receptor Plan RevA.dwg Date 07/20 Engineer EG Drawn GH Checked PR Notes 1. Reproduced from the Ordnance Survey Map with the permission of the Controller of Her Majesty's Stationary Office, Crown Copyright, Licence Number 100004910.

Princess Royal Area of site covered by planning consents for Cottages mineral extraction and reclamation of landfilling

1998 ROMP - WA98/1018 Hook Mineral Review Site Cottage The Princess Royal BM 78.82m (PH) Approved Restoration Contours Hillcrest 82 El Sub Sta El Ps 82.0m The Lodge Highlands 80 Proposed contours within the Central Area GUILDFORD ROAD

WB5 BM 84.63m Existing contours from December 2014 site survey 96 which continue to settle Barfield Lodge

Existing contours from site survey, to be retained SURFACE 74 as existing WATER WB8 POND Existing contours taken from Ordnance Survey

O/H Wires 86.0 72 data and adjusted around boundary to fit 74 topographic site survey WB8

Proposed hedgerow planting with intermittent hedgerow trees

WB6

Path WB4 Feature planting comprising oak and chestnut

Existing woodland vegetation adjacent or Pavilion within the Site area

Proposed woodland planting or management of existing woodland areas

WB3 O/H Wires

WB7 Hatched graphic shows natural regeneration areas H2

Area restored to grassland for sandy soil (Area A and Area C)

Area restored to grassland for loamy soil (applicable to Area A) H3

Existing or proposed areas restored to grassland for grazing, grassland cropping etc with imported soils

Approximate alignment of surface water ditch with flow direction arrow (ditches to be lined with geo-fabric where necessary) Existing (temporary) footpath to become a 'permissive' route (stiles to be provided as and where appropriate)

Route of footpaths dependant on definitive rights of way map (stiles to be provided as and where

H1 appropriate) Alignment of proposed stock proof fencing, (installed where stock are to be grazed and

where appropriate to protect vegetation) O/H Wires O/H Track and location of gated access points

Permissive footpath route on Environmental Permit surrender

Rev subject date

Darwen Resource Recovey Park, Lower Eccleshill Road, Darwen, BB3 0RP Tel:(01254)819700, Fax:(01254)819749, Email: [email protected]

Site

Runfold South Quarry and Landfill Site

Title

Proposed Restoration Masterplan (at Environmental Permit Surrender)

Scale 1:4000 on A3

Date May 2018

NOTE: Drawing Ref Drawn by This masterplan illustrates the principles of eventual land uses. For the avoidance ST of doubt it does not illustrate the detailed location for gas and leachate Rsp-PLS-R-0518-02 infrastructure or temporary access routes etc. Surface water drainage routes are indicative of the broad drainage and catchment 100 150 200m 300 system. The exact routing (alignment) will need to take account of subtle ground Checked by level differences as well as changes to the restoration scheme over time. Landscaping on Area B and Old Hogs Back subject to approval under separate AW application. Metres 1:4000 Environmental Risk Assessment Runfold Central Area Restoration

Appendix A

Groundwater Risk Assessment

August 2020 Ref. 2445/R/07/03 Environmental Risk Assessment Runfold Central Area Restoration

Appendix B

Soil Gas Risk Assessment

August 2020 Ref. 2445/R/07/03 Environmental Risk Assessment Runfold Central Area Restoration

Appendix C

Dust and Emission Management Plan

August 2020 Ref. 2445/R/07/03 Environmental Risk Assessment Runfold Central Area Restoration

APPENDIX D

Environment Agency Conservation Screen

August 2020 Ref. 2445/R/07/03

Nature and Heritage Conservation

Screening Report: Bespoke waste

Reference EPR/HB3006FB/A001

NGR SU8640347226

Buffer (m) 1000

Date report produced 12 December 2018

Number of maps enclosed 5

The nature and heritage conservation sites and/or protected species and habitats identified in the table below must be considered in your application.

Nature and heritage Screening Further Information conservation sites distance (m) Sites of Special Scientific 1000 Natural England Interest (SSSI) Moor Park SSSI

Local Wildlife Sites (LWS) 200 Appropriate Wildlife Trust River Wey - North SNCI Snayleslynch - River Wey SNCI Tongham Pond and Tices Meadow SNCI

Ancient Woodland 200 Woodland Trust Unnamed Ancient Woodland Forestry Commission

Natural England

Protected Species Screening Further Information distance (m) Brown Trout up to 500m Natural England European Eel European Eel migratory route Environment Agency. Dial 03708 506 506 for Bullhead your local Fisheries and Biodiversity team Brook Lamprey

Protected Habitats Screening Further Information distance (m) Deciduous Woodland up to 500m Natural England Chalk Rivers

Where protected species are present, a licence may be required from Natural England to handle the species or undertake the proposed works.

The relevant Local Records Centre must be contacted for information on the features within local wildlife sites. A small administration charge may also be incurred for this service.

Please note we have screened this application for protected and priority sites, habitats and species for which we have information. It is however your responsibility to comply with all environmental and planning legislation, this information does not imply that no other checks or permissions will be required.

Please note, the enclosed pre-application map(s) is valid for a period of 6 months. If you plan to submit your application more than 6 months after the map(s) was generated, you must request that the screen is re-run. This will ensure that you have used the most current information on heritage and nature conservation interests in your application.

Ancient Woodland

Legend

Ancient Woodland (England) Ancient Woodland (Wales)

0 165 330 494

Legend

Local Wildlife Sites

0 330 659 989

Legend

Protected Habitats screened for Environmental Permits

0 330 659 989

Legend

Protected species screened for Environmental Permits - complete set

Protected species, non fish

Protected fish

Protected fish migratory route

0 330 659 989

Legend

SSSI (England) SSSI (Wales)

0 165 330 494