phase 1 geo-environmental assessment report · report for events taking place after: a) the date on...

B W B C o n s u l t i n g L t d ¤ R e g i s t e r e d i n E n g l a n d 5 2 6 5 8 6 3

ENVIRONMENT - LAND

Wates Construction Ltd Paddox Primary School

Phase 1 Report

B W B C o n s u l t i n g L t d ¤ R e g i s t e r e d i n E n g l a n d 5 2 6 5 8 6 3

ENVIRONMENT LAND

Wates Construction Ltd

Paddox Primary School Everdon Close, Rugby

Phase 1 Report

BWB Consulting Ltd Birmingham

Livery Place, 35 Livery Street, Colmore Business

District, Birmingham, B3 2PB T: 0121 233 3322 Leeds Whitehall Waterfront, 2 Riverside Way, Leeds LS1 4EH T: 0113 2338000

London 15 Weller Street, London, SE1 1QU T: 0 20 7234 9122 Manchester

4th Floor Carvers Warehouse, 77 Dale Street Manchester, M1 2HG T: 0161 2334260

Nottingham 5th Floor Waterfront House, Station Street, Nottingham NG2 3DQ

T: 0115 924 1100 LDS2236/01/V1 June 2014

i

DOCUMENT ISSUE RECORD

Client: Wates Construction Ltd Project: Paddox Primary School Job Number: LDS2236 Document Title: Phase 1 Report Report Number: LDS2236/01/V1

Revision Date of

Issue

Status Author: Checked: Approved:

1 23/06/2014 V1 Adam Bennett

BEng (Hons)

Chris Rhodes

BSc MSc FGS

Mike O’Halloran

BSc (Hons) FGS

Limitations The assessments and interpretation have been made in line with legislation and guidelines in force at the time of writing, representing best practice at that time. All of the comments and opinions contained in this report, including any conclusions, are based on the information obtained by BWB during our investigations.

There may be other conditions prevailing on the site which have not been disclosed by this investigation and which have not been taken into account by this report. Responsibility cannot be accepted for conditions not revealed by the investigation. Any diagram or opinion of the possible configuration of the findings is conjectural and given for guidance only and confirmation of intermediate ground conditions should be considered if deemed necessary. Except as otherwise requested by the Client, BWB is not obliged and disclaims any obligation to update the report for events taking place after: a) the date on which this assessment was undertaken; and b) the date on which the final report is delivered. BWB makes no representation whatsoever concerning the legal significance of its findings or to other legal matters referred to in the following report. This report has been prepared for the sole use of Wates Construction Ltd . No other third parties may rely upon or reproduce the contents of this report without the written permission of BWB. If any unauthorised third party comes into possession of this report they rely on it at their own risk and the authors do not owe them any Duty of Care or Skill.

PADDOX PRIMARY SCHOOL EVERDON CLOSE, RUGBY

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EXECUTIVE SUMMARY

Site Address The site is located at Everdone Close, Rugby, Warks, CV22 5JH.

Site Setting The site comprises a predominantly flat rectangular parcel of land, 4.82ha in

size, currently in use as a school campus. A grass covered playing field covers the central and western half of the site with the eastern half developed as school buildings, currently in use. The proposed development is anticipated to be the construction of a two storey school building.

Site History From the earliest mapping the site has been occupied as an agricultural field,

playing field and allotment. By 1979, a school was constructed in the east of the site.

The surrounding areas historically comprised open fields with scattered

ponds. A railway line is developed by 1900 and residential developments surround the site by 1938.

Regulatory Setting A review of information within the environmental database has not identified

pertinent features which are considered likely to have a significant detrimental impact on the site.. There are no historic landfill sites within 1km of the site.

Geological Setting Made ground has not been mapped on site however it is possible that small deposits exists given the site’s history.

Superficial Deposits comprise the Dunsmore Gravel (Sands and Gravel) over bedrock comprising the Charmouth Mudstone Formation.

The superficial deposits are classified as a Secondary A Aquifer whilst the bedrock is an Unproductive Aquifer.

Geotechnical

Setting

Light to moderately loaded shallow spread foundations and lightly loaded floor

slabs constructed within the superficial sands and gravels or the Charmouth

Mudstone Formation are expected to be suitable for the proposed development.

Contamination Sources

The main on site sources relate to Made Ground associated with the development of the site and the potential for PCBs associated with the on-site electricity substation (ESS). However, as the ESS is not located near the proposed new school extension, it is considered unlikely to result in significant

harm to human health.

Potential off site sources relate to an infilled pond adjacent to the southern border where historic contamination has been identified, and the historic railway line which could have acted as a source of hydrocarbon contamination.

Pollutant Linkages There is potential for on-site contamination to impact upon the underlying groundwater and potentially migrate towards a nearby nature reserve 200m west. There is also a potential for contaminated groundwater associated with

the infilled pond to migrate towards the site.

If contamination is present within the shallow soils there is a potential for school children to inhale or ingest contaminative particles.

Recommendations It is recommended that an intrusive investigation is undertaken to assess potential on site contamination, confirm ground conditions and assess potential foundation options.


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EXECUTIVE SUMMARY

This summary should be read in conjunction with BWB’s full report (ref. LDS2236/01/V1 ) and reflects an assessment of the Site based on information received by BWB at the time of production.


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CONTENTS PAGE

1 INTRODUCTION 1

Instruction 1

Objectives 1

Scope of Works 1

2 THE SITE 2

Site Location 2

Site Description 2

3 DESK STUDY 4

Historical Mapping 4

Aerial Photographs 6

Operational/Company Records 6

Previous Investigation Reports 6

Permits Consents and Authorisations 6

Landfilling and Waste Management 7

Geology, Hydrogeology and Hydrology 7

Ground Related Constraints & Opportunities 8

4 PRELIMINARY ENVIRONMENTAL RISK ASSESSMENT 9

Introduction 9

5 CONCLUSIONS AND RECOMMENDATIONS 12

Conclusions 12

Recommendations 12

6 REFERENCES 13

TABLES

Table 1 Key Points of Site Development History (1886-2012) 4

Table 2 Key Points of Surrounding Area Development History (1886-2012) 5

Table 4 Published Ground Conditions 7

Table 5 Ground Related Constraints & Opportunities 8

Table 6 Conceptual Site Model 10

FIGURES

Figure 1 Proposed Masterplan

Figure 2 Site Location Plan (included in main text)

Figure 3 Site Layout Plan

APPENDICES

Appendix 1 Historical Mapping


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Appendix 2 Groundsure Report

Appendix 3 CIRIA Risk Classification Scheme


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1 INTRODUCTION

Instruction

1.1 BWB Consulting (BWB) was instructed by Wates Construction Ltd (the Client) to

carry out a Geo-environmental review at the site at Paddox Primary School

Everdon Close, Rugby . Details of the project brief are included in BWB proposal

reference RC/MOH/LDS2236/01/V1 dated February 2014.

1.2 The proposed development is anticipated to be the construction of a two storey

school building.

1.3 A masterplan can be found in Figure 1.

Objectives

1.4 The report has been completed to present pertinent information into the

environmental risks and liabilities associated with the site. It has been completed

to fulfil the requirements of a preliminary risk assessment in accordance with

BS10175: 2011 Investigation of Potentially Contaminated Sites Code of Practice

and CLR11 Model Procedures for the Management of Contaminated Land. The

objectives of the report are:-

To assess historical activities at the site with respect to their potential

impact on the site environment;

To characterise the environmental setting of the site, identify migration

pathways and vulnerable receptors for contamination originating at the

site, focusing on potential soil and groundwater liabilities;

To assess historical and current surrounding land use in relation to known

or potential off-site contamination issues that may impact the subject

property;

To review existing site investigation and remediation information available

for the site;

To develop a preliminary conceptual site model (CSM); and

To assess potential environmental liabilities associated with the site.

Scope of Works

1.5 The scope of work included:

Site visit to inspect the current condition of the site at ground surface;

Review of the following information:

o British Geological Survey (BGS) Borehole Records

(www.bgs.co.uk);

o British Geological Survey (1984) 1:50 000 Scale Warwick Sheet

184 Solid and Drift

o Groundsure Geoinsight Report No. HMD 214–1452337 and

Enviroinsight Report HMD 214–1452336 (Appendix 2);

o Environment Agency (www.environment-agency.gov.uk).

Provide a summary of key ground risks that require further ground

investigation in order to control the identified risks; and

Produce a geo-environmental desk study (this report) providing qualitative

contamination risk assessment and ground-related constraints to the

proposed development.


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2 THE SITE

Site Location

2.1 The site is located at Paddox Primary School Everdon Close, Rugby at national

grid reference 451850, 273747. The location of the site is shown in Figure 2.

Figure 2 Site Location Plan

Reproduced from the Ordnance Survey 1:25,000 scale map with the permission of the controller of Her Majesty’s Stationery Office Crown Copyright Reserved. OS Licence number 100013665.

Site Description

2.2 The layout of the site with the main features is presented as Figure 2.

2.3 The wider site comprises a predominantly flat rectangular parcel of land, 4.82ha

in size, currently in use as a school campus. A grass covered playing field located

in the central and western half of the site with the eastern half developed as

school buildings, which are currently in use.

2.4 The school is accessed via a driveway extending off Fareham Avenue located to

the east of the school.

2.5 The main school building, which is irregular in shape, is located centrally; the

main entrance into the school is located in the south east corner of the building. A

large three storey brick constructed rectangular shaped building is located to the

south of the main school and houses classrooms. An additional smaller single

storey building is located north of the main school building in use as a nursery. A

new single storey building has also been constructed adjacent to the western side

of the three storey rectangular school building and southern side of the main

school building.

2.6 The school buildings are surrounded by hardstand comprising asphalt covered

courtyards in use as paly areas to the south and a car park located to the north of

the main school with an additional play area located beyond.

Site Boundary


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2.7 An electricity sub-station (ESS) is located in the north east corner of the site, but

it is unknown if the ESS contains internal PCBs.

2.8 The site boundary predominantly comprises hedgerows and fences associated

with residential properties that border the school grounds on all sides.

2.9 The surrounding area predominantly comprises residential properties in all

directions


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3 DESK STUDY

Historical Mapping

3.1 Historical Ordnance Survey (OS) mapping for the site area has been reviewed.

These maps and plans date from the 1886 OS County Series to the current 2012

OS Plans. The historical plans reviewed have been reproduced in Appendix 1.

The key points of the historical development of the site and surrounding area are

summarised below in Tables 1 and 2.

Table 1 Key Points of Site Development History (1886-2012)

Dates On Site Significance

1886 Site comprises open fields with small hedgerows present.

No significance

1900-1905

No significant changes No significance

1913 No significant changes No significance

1939 The site is occupied by a playing field with a TENNIS COURT present in the north eastern corner of the site. A small structure is indicated along the northern boundary.

Depending on the construction of the tennis court there is potential for the generation of MADE GROUND on site. However quantities could be assumed as very small.

1950 The playing fields are indicated to be in use as ALLOTMENTS.

There is the potential for the HERBICIDES & PESTICIDES to

have been used on the site, however the significance is considered to be

low.

1958-1959

The tennis court and small structure are no longer identified, however the site is again referred to as a playing field. Two small unidentified features are identified to the east of the site.

No significance

1959-1960



1979 FAREHAM HIGH SCHOOL has been

developed in the eastern area of the site with an associated tennis court.

The development of the school is

likely to have generated MADE GROUND on site. This could give cause for the generation of low concentrations of ground gases.

1989-

1993

The school is now referred to as

PADDOX MIDDLE SCHOOL.

1995 An ELECTRICITY SUBSTATION (ESS) is indicated inside the eastern

Depending on its age and type of construction, the ESS could present a


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Dates On Site Significance

site boundary. potential source of PCB or OIL

CONTAMINATION.

2012 The school is now referred to as PADDOX PRIMARY SCHOOL.

No significance

SOURCES IN BOLD AND CAPS Receptors bold and italics

Table 2 Key Points of Surrounding Area Development History (1886-

2012)

Dates Off Site Significance

1986 HILLMORTON HEATH is located

120m south of site.

RUSSEL’S FARM, HILLMORTON GROUNDS, SPRING HILL FARMS, SPRING HILL HOUSE, EASTMORE FIELDS and HILLMORTON PADDOX are all located within 750m of site and

in all directions. The site could possibly be used as agricultural land owned by one of these farms.

Five small ponds are present in all direction ranging from the southern site boundary to 120m away.

A pump is outlined 80m north and

120m south of site.

The presence of surrounding farms

that possibly use the site for agricultural purposes gives the possibility for harmful HERBICIDES and PESTICIDES to be on site.

1900 GREAT CENTRAL RAILWAY runs in the north-south direction, located approximately 200m west of site.

RAILWAY INFRASTRUCTURE has the potential to generate HYDROCARBON contamination associated with FUELS and

LUBRICANTS. ASBESTOS CONTAINING MATERIALS (ACMs) may also be present. The potential for these to impact upon the Site is considered to be low.

1899-

1903



1927 RESIDENTIAL DEVELOPMENT has taken place approximately 100m

north of site.

Considered unlikely to have resulted in significant impact to the site.

1938-39 Significant amounts of residential development have occurred directly outside of the site boundary in all directions including a SCHOOL 50m east of site.

The PONDS have been infilled.

The POND, which has been infilled with unknown materials, has the potential to generate HAZARDOUS GROUND GASSES. Although considered unlikely, ground gasses

generated from fill materials may have the potential to migrate onto


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Dates Off Site Significance

Site.



1979 The GREAT CENTRAL RAILWAY has been dismantled.

No significance

1990 No significant changes Nil

2002 The location of the pre-existing railway has been converted into a

nature reserve.

The nature reserve is a potentially sensitive receptor to site borne

contamination.

2012 No significant changes Nil

SOURCES IN BOLD AND CAPS Receptors bold and italics

3.2 The site has been largely undeveloped until approximately 1979 when the school

buildings were constructed. The main potential contaminants of concern relate to

Made Ground and PCBs associated with the electricity substation (ESS) which was

likely to have been constructed at the same time as the school buildings.

3.3 The site has been surrounded by agricultural and residential land uses throughout

the mapping period. The main potential contaminants identified are associated

with the adjacent railway lines.

Aerial Photographs

3.4 An aerial photograph is included within the Groundsure® Report and shows the

site approximately in its current layout following construction of the latest school

buildings with the school in the east of the site and playing fields in the west. The

surrounding area is appears to be predominantly residential.

Operational/Company Records

3.5 No operational or company records have been reviewed as part of this report.

Previous Investigation Reports

3.6 No previous investigation reports have been reviewed as part of this report.

Permits Consents and Authorisations

3.7 No discharge consents, pollution incidences or other environmental authorisations

have been identified within the Groundsure® Report (Appendix 2) within 500m

of the site.

3.8 The current industrial land use data confirms the presence of the ESS on site.

There are three further ESS’s between 126m south west and 231m north-west of

the site, and an engineering company is located 56m south west.


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Landfilling and Waste Management

3.9 There are no records of any landfill sites within 1km of site.

Geology, Hydrogeology and Hydrology

Table 3 Published Ground Conditions

Geology Small amounts of made ground may be present on site, however none are identified on the geological plans reviewed.

Superficial deposits comprise Dunsmore Gravel (Sand and Gravel) described as red, brown and yellow, commonly ochreous, matrix-supported flinty gravel with lenses of coarse sand.

The permeability of the superficial deposits ranges from high to very

high through intergranular flow.

Bedrock deposits comprise the Charmouth Mudstone Formation described as dark grey laminated shales, and dark, pale and bluish grey mudstones.

The permeability of the bedrock is low with flow through fractures.

Reference to BGS borehole SP57SW64 (dated 15/03/1993) located approximately 26m east of site shows a topsoil fill (possible capping) to 1.0m overlying fill containing car wheels, radiators, oil tin, cans, shoes, animal bones and wood . This borehole is located where a previous pond was shown in the historic ordinance survey plans (Appendix 1). A rapid water strike at 1.4m gave very strong aromas of petrol and rotting material. Gravelly clays and peat were also

identified in the historic pond area.

No faults are located within 500m of site.

Hydrogeology The superficial deposits have been identified as a Secondary A Aquifer. This can be described as Permeable layers capable of supporting water supplies at a local rather than strategic scale, and in some cases forming an important source of base flow to rivers.

The bedrock has been identified as an unproductive aquifer. This can be described as rock layers with low permeability having negligible significance for water supply or river base flow.

No discharge consents or groundwater abstraction licences for groundwater flow have been identified.

No pollution incidents have been identified that could affect site.

Surface Waters No surface water features have been identified within 250m of the site. The site is not located within an Environmental Agency zone 2 or 3 floodplain.

No surface water abstraction licences have been identified within 1km

of site.

The site is indicated to be within an area susceptible to groundwater

flooding as a result of flooding from superficial deposits.

Mining and Mineral Extraction

No current or historic mining or mineral extraction has been identified within 500m of site.

Historic ground workings are indicated immediately south east associated with the historic pond and 125m west associated with the


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old railway line.

Ground Stability and Constraints

Potential ground stability risks associated with shrink/swell of clays, landslides, ground dissolution of soluble rocks, compressible deposits, collapsible deposits, and running sands are all rated as between

negligible and very low.

Ground Gas & Radon

The property is not located within a radon affected area as less than 1% of properties above the action level.

Ground Related Constraints & Opportunities

Table 4 Ground Related Constraints & Opportunities

Potential Constraint

Explanation Potential Mitigation Options

Made Ground No made ground has been mapped on site, however small deposits may be present from development of the school and surrounding residential development.

Depending on the nature of the material it is not anticipated to be deep enough to affect future development. It is therefore considered likely that shallow spread

foundations bearing onto the underlying superficial or bedrock geology would be suitable for the development.

Obstructions No potential obstructions have been identified on site.

N/A

Trees A small number of trees are located around the existing school buildings.

This may impact upon the development if the roots are founded within shallow clays.

If trees have roots founded within clay materials, foundations may need to be

locally deepened.

Coal Mining Coal mining or other mineral extraction has not been identified on site.

N/A

UXO Online UXO risk maps provided by

www.Zetica.com identify the site to lie within a moderate WW2 UXO risk area.

Future mitigation options could

involve a desk based UXO risk assessment report to outline the potential risk.

http://www.zetica.com/


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4 PRELIMINARY ENVIRONMENTAL RISK ASSESSMENT

Introduction

4.1 The risk posed by any contaminants in soil or groundwater will depend on the

nature of the hazard, the probability of exposure, the pathway by which exposure

occurs, and the likely effects on the receptors. A contaminant is defined as a

substance that has the potential to cause harm, while a risk is considered to exist

if such a substance is present in sufficient concentration to cause harm and a

pathway exists for a receptor to be exposed to the substance.

4.2 The following sections discuss all the identified potential on and off site sources,

pathways and receptors in the context of the proposed development and plausible

pollutant linkages which may represent a risk to identified receptors such as

human health and/or controlled waters from the data gained from the desk study.

At this stage the assessment is qualitative and aimed to determine all pollutant

linkages, irrespective of significance or allowing for uncertainty.

4.3 Three impact potentials exist for any given site, these are:

The site impacting upon itself;

The site impacting on its surroundings; and

The surroundings impacting on the site.

4.4 All three impacts need to be considered in a risk assessment.

4.5 A Source, Pathway, Receptor analysis has been undertaken for the site based on

the information provided in the preceding sections. This is presented as Table 6.

4.6 Sources (S); These are potential or known sources of contamination that may

relate to a former land use or present site feature or process (e.g. fuel storage

tanks).

4.7 Pathways (P); A pathway is defined as a mechanism or route by which a

contaminant comes into contact with, or otherwise affects a receptor. Pathways

by which the identified receptors may be impacted upon in the context of the

proposed development.

4.8 Receptors (R); Receptors are defined as people, living organisms, ecological

systems, controlled waters, atmosphere, structures and utilities that could be

adversely affected by contaminant(s).


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Table 6 Conceptual Site Model

Source Pathway Receptor Con Prob Risk Mitigation/Investigation

S1: Contamination within shallow Made Ground from site development – Heavy metals, hydrocarbons, PAH, PCBs, Carbon Dioxide and Methane

P1: Migration into buildings through

foundation cracks, service entry points

R1: Confined spaces in

buildings. Sv Ul M/L

A ground investigation should be conducted to characterise potential contaminants within the

Made Ground.

This should include suitable chemical analytical testing for the associated contaminants. The ground investigation should also seek to characterise the ground gas regime.

Construction workers should adopt

appropriate PPE and hygiene precautions.

P2: Leaching and permeation through soil profile.

R2: Secondary A Aquifer Md L M/L

R3: Offsite nature reserve

Md Ul L

P3: Ingestion, skin

contact and inhalation

R4: School children and school workers

Md Ul M/L

R5: Construction and

maintenance workers Md Ul L

P4: Direct Contact

R6: Foundations Md Lw M/L

R7: Utility pipes Md Lw M/L

S2: Off site: Contaminated

groundwater from infilled ponds and residential development – hydrocarbons, heavy metals, PAHs, VOCs, Methane and Carbon Dioxide.

P2: Leaching and permeation through soil profile

R2: Secondary A Aquifer Md Lw M/L

The BGS borehole logs that identified the potential contamination source appeared to be

a targeted investigation to support the development of the neighbouring site. It is

assumed that any significant contamination will have been remediated as part of the development. A request has been made to the Local Authority for further information in relation to the works associated with this

development and a response is awaited at the time of writing.

A ground investigation should be conducted to characterise potential contaminants within the soils beneath the site and the potential for

P1: Migration into buildings through foundation cracks,

service entry points

R1: Confined spaces in buildings.

Md Ul L


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migration on to site.

This should include suitable chemical analytical testing for the associated contaminants. The ground investigation should also seek to characterise the ground gas regime.

S3: Contaminated groundwater

associated with former railway line –TPH, PAH, heavy metals.

P2: Leaching and

permeation through soil profile

R2: Secondary A Aquifer Md Ul L

Given the distance from site, it is unlikely that this would have a significant impact upon the site. Furthermore, the former railway line is now in use as a nature reserve which provides some comfort that no significant contamination sources remain in the area.

VH = Very High, H = High, M = Moderate, M/L = Moderate/Low, L = Low, VL = Very Low

KEY: Sv = Severe, Md = Medium, Mi = Mild, Mr = Minor Hi = High, Li = Likely, Lw = Low Likelihood, Ul = Unlikely

Pollutant Linkage Assessment Summary

When the Site is assessed in the context of the ground conditions and historical activities that have occurred on and in close proximity to the Site, the

proposed development is considered to pose a LOW to MODERATE risk to human health and a LOW to MODERATE risk to controlled waters. It is

recommended that a ground investigation be undertaken to quantify the identified pollutant linkages and assess likely mitigation measures.


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5 CONCLUSIONS AND RECOMMENDATIONS

Conclusions

5.1 The site has been historically utilised as an agricultural field, playing field and

allotments before being developed as a school site in 1979. The surrounding area

is largely residential, with an historic railway line within 200m of the western site

boundary.

5.2 Limited regulatory information exists in for the surrounding area. An electricity

substation is listed as being present on site however given its location away from

the proposed school extension it is not considered to represent a significant risk

of causing significant harm in the context of the proposed development.

5.3 The site is underlain by superficial deposits of the Dunsmore Gravel (sand and

gravel) over the Charmouth Mudstone Formation. Historic BGS borehole logs

have identified potentially contaminative fill adjacent to the southern boundary

associated with the infilling of an historic pond. The BGS logs appear to be

associated with a site investigation for the houses constructed in the mid 1990s.

It is assumed that contamination identified would have been remediated as part

of the development. Enquiries are currently ongoing with the Local Authority to

ascertain what works were undertaken to remediate this area.

5.4 Light to moderately loaded shallow spread foundations and lightly loaded floor

slabs constructed within either the superficial sands and gravels or the

Charmouth Mudstone Formation are expected to be suitable for the proposed

development.

5.5 The identified potential pollutant linkages are considered to pose a low to

moderate risk to human health and controlled waters.

Recommendations

5.6 An intrusive ground investigation is recommended to assess the identified

pollutant linkages and confirm the ground model.


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6 REFERENCES

1. British Standards Institute, (BSI), BS 8485:2007, Code of Practice for the

characterization and remediation from ground gas in affected developments

2. British Standards Institute, (BSI), BS 8576:2013, Guidance on investigations for

ground gas – Permanent gases and Volatile Organic Compounds (VOCs)

3. British Standards Institute, (BSI), BS 10175:2011+A1:2013, Investigation of

Contaminated Sites – Code of Practice

4. British Standards Institute, (BSI), BS5930 +A2:2010) Code of practice for site

investigations

5. British Standards Institute, (BSI), BS EN 1997-1:2004 Incorporating corrigendum

February 2009, Eurocode 7 – Geotechnical Design – Part 1: General rules.

6. British Standards Institute, (BSI), BS EN 1997-2:2007 Incorporating corrigendum

June 2010, Eurocode 7 – Geotechnical Design – Part 2: Ground Investigation and

testing.

7. Building Research Establishment Special Digest 1 Third Edition. Concrete in

Aggressive Ground (2005)

8. Building Research Establishment (BRE) BR211, Radon; Guidance on Protective

Measures for New Dwellings (2007)

9. Construction Industry Research and Information Association (CIRIA), Report 132,

A Guide to Safe working on Contaminated Sites (1996).

10. Construction Industry Research and Information Association (CIRIA). 2001, C522

Contaminated land risk assessment, A guide to good practice.

11. Construction Industry Research and Information Association (CIRIA). 2007,

Report C665, Assessing Risk Posed by on Hazardous Ground Gases to Buildings

12. Department for Communities and Local Government (DCLG), 2012, National

Planning Policy Framework.

13. Department for Environment Food and Rural Affairs (DEFRA), 2012,

Environmental Protection Act 1990: Part 2A Contaminated Land Statutory

Guidance.

14. Environment Ageny report CLR11 'Model Procedures for the Management of Land

Contamination'.

15. Environment Agency 2008, Updated technical background to the CLEA model

Science Report – SC050021/SR3

16. Environment Agency 2008, Human health toxicological assessment of

contaminants in soil Science Report – SC050021/SR2

17. Environment Agency 2009, CLEA Software (Version 1.05) Handbook Better

Regulation Science Programme Science report: SC050021/SR4


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18. Environment Agency 2008, A review of body weight and height data used within

the Contaminated Land Exposure Assessment model (CLEA) Project SC050021/

Technical Review 1

19. Environment Agency, 2006, Remedial Targets Methodology, Hydrogeological Risk

Assessment for Land Contamination

20. Health and Safety Executive (HSE) 'Protection of workers and the general public

during the Development of Contaminated Land (1991).

21. NHBC Guidance for the Safe Development of Housing on Land Affected by

Contamination, R&D Publication 66: 2008

FIGURES

FIGURE 1 SITE DEVELOPMENT MASTERPLAN

Canopy

hard standing playground

By Department Legendbasic teaching areas

storage

non-net areas

10 m²Girls WC

50 m²Year 1

50 m²Year 1

13 m²Stairs

79 m²Circulation

Lift

16 m²Plant

4 m²Plant

9 m²Store

1309-303-01

11309-303-01

2

1309-303-01

3

1309-303-01

4

Sun ShadeCanopy

(Retractable)

Riser

3 m²DWC

10 m²Boys WC

6 m²Store

UP

DRAWING TITLE

DRAWING No

SCALE DATE

T 020 3274 1000F 020 3274 1001E [email protected]

www.iid.co.uk

1 VICTORIA VILLASRICHMONDSURREYTW9 2GW

IID ARCHITECTS

PROJECT

REV

@A1

INITIATIVES IN DESIGN

KEY

CLIENT

D

1 : 100

Paddox Primary School

Proposed Ground Floor Plan

1309-301-04

March2014


Ref Revision Date

A Preliminary 16.05.14B Preliminary 21.05.14C Amendments made in coordination with school. 23.05.14

D Amendments made in coordination with school,room schedule table added, structural grid linesadded

09.06.14

1 : 100Proposed Ground Floor1

Existing School Existing School

north

0 2 3 4 5 61

Metres

GIFA

Ground Floor 267.6sqmFirst Floor 238.8sqmSecond Floor 238.8sqm

Total 745.2sqm

Room Schedule

Level Name Area

0 Existing Ground Floor Circulation 79 m²0 Existing Ground Floor Girls WC 10 m²0 Existing Ground Floor Lift 4 m²0 Existing Ground Floor Year 1 50 m²0 Existing Ground Floor Year 1 50 m²0 Existing Ground Floor Stairs 13 m²0 Existing Ground Floor Plant 16 m²0 Existing Ground Floor Plant 4 m²0 Existing Ground Floor Store 9 m²0 Existing Ground Floor DWC 3 m²0 Existing Ground Floor Boys WC 10 m²0 Existing Ground Floor Store 6 m²ADAPT First Floor DWC 4 m²ADAPT First Floor Boys WC 18 m²ADAPT First Floor Girls WC 16 m²ADAPT First Floor Cleaner 2 m²ADAPT First Floor Classroom (Year 4) 50 m²ADAPT First Floor Classroom (Year 4) 50 m²ADAPT First Floor Stair 19 m²ADAPT First Floor Lift 4 m²ADAPT First Floor Circulation 67 m²ADAPT First Floor Classroom (Year 3) 56 m²ADAPT Second Floor Stair 14 m²ADAPT Second Floor Classroom (Year 4) 50 m²ADAPT Second Floor Classroom (Year 5) 50 m²ADAPT Second Floor Classroom (Year 5) 50 m²ADAPT Second Floor Circulation 58 m²ADAPT Second Floor Lift 4 m²ADAPT Second Floor WC 23 m²ADAPT Second Floor Classroom (Year 5) 50 m²

4 m²DWC

18 m²Boys WC

16 m²Girls WC

2 m²Cleaner

50 m²Classroom (Year 4)


19 m²Stair

Lift

67 m²Circulation

1309-303-01

1


1309-303-01

2By Department Legend

basic teaching areas

non-net areas

1309-303-01

3

1309-303-01

4

Riser

DisabledRefuge

UP

UP

14 m²Stair




58 m²Circulation

1309-303-01

1

Lift

1309-303-01

2

23 m²WC


1309-303-01

3

1309-303-01

4

Riser

DisabledRefuge

UP

1309-303-01

11309-303-01

2

1309-303-01

3

1309-303-01

4

1:401:40

Single Ply onPC Planks

DRAWING TITLE

DRAWING No

SCALE DATE

T 020 3274 1000F 020 3274 1001E [email protected]

www.iid.co.uk

1 VICTORIA VILLASRICHMONDSURREYTW9 2GW

IID ARCHITECTS

PROJECT

REV

@A1

INITIATIVES IN DESIGN

KEY

CLIENT

D

1 : 100


Proposed First, Second and Roof FloorPlan

1309-301-05

March2014


Ref Revision Date

A Preliminary 16.05.14B Preliminary 21.05.14C Amendments made in coordination with school. 23.05.14

D Amendments made in coordination with school,room schedule table added, structural grid linesadded

09.06.14

1 : 100ADAPT First Floor1

north

1 : 100ADAPT Second Floor2 1 : 100

ADAPT Roof Level3

Existing SchoolFirst Floor

Existing SchoolSecond Floor

Existing SchoolRoof

0 2 3 4 5 61

Metres

Blue hatch indicatesnew corridor created.

Red dashed lineindicates rooms to

be reconfigured.

Blue hatch indicatesnew corridor created.

Red dashed lineindicates rooms to

be reconfigured.

FIGURE 3 SITE LAYOUT PLAN

Not to Scale CR MOH

Drawing Status:

NOTES

FINAL

LEGEND

Drawing Title:

Figure 2 - Site Layout Plan

LDS2236/EN/001 R1 Drawing No: Revision:

Scale: Date: Drawn: Authorised:

1. DO NOT SCALE THIS DRAWING. ALL DIMENSIONS MUCT BE CHECKED/ VERIFIED ON SITE. IF IN DOUBT ASK. 2. THIS DRAWING IS TO BE READ IN CONJUNCTION WITH ALL RELEVANT ARCHITECTS, ENGINEERS AND SPECIALISTS DRAWINGS AND SPECIFICATIONS. 3.ALL DIMENSIONS IN MILLIMETRES UNLESS NOTED OTHERWISE. ALL LEVELS IN METERES UNLESS NOTED OTHERWISE. 4. ANY DISCREPANCIES NOTED ON SITE ARE TO BE REPORTED TO THE ENGINEER IMMEDIATELY.

Project Title:


Client:


Building, Infrastructure and Environmental Consultancy 5th Floor, Waterfront House, Station Street, Nottingham, NG2 3DQ T 0115 924 1100 F 0115 950 3966 W bwbconsulting.com

Electricity Sub Station

Car Park

Hard Stand Play Area

Residential Properties

Main School Building



Hard Stand Play Area

Playing Field

Approximate location of recent extension

phase 1 geo-environmental assessment report · report for events taking place after: a) the date on...

Documents