Environmental Statement volume 4 - Chiltern Evergreen3

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AssessmentPointFloodZoneSTRequired?ST JustificationProvided?ET Required?Previouslydeveloped land?Reasonablealternatives?Flood risk not increasedelsewhereSurface water*FloodStorageObstructingfloodplain flowsAP11 1 No N/A No N/A N/A N/A N/A N/AAP11a 1 No N/A No N/A N/A N/A N/A N/AAP12 3 Yes Provided Yes Yes No NA L3FRA L3FRAAP13 1 No N/A No N/A N/A N/A N/A N/AAP14 1 No N/A No N/A N/A N/A N/A N/AAP15 1 No N/A No N/A N/A N/A N/A N/AAP16 1 No N/A No N/A N/A N/A N/A N/AAP17 3b Yes Provided Yes Yes No L3FRA L3FRA L3FRAAP18 3b Yes Provided Yes Yes No NA L3FRA L3FRAAP19 1 No N/A No N/A N/A N/A N/A N/A*Updated to final designsL3FRA: Commitment to be confirmed during a Level 3 FRA.38
4 Surface Water Runoff Assessments4.1 OverviewA normal development requirement is that, for a range of annual flow rateprobabilities, up to and including the 1% annual probability (1 in 100 year event)the post-development rate of runoff into a watercourse should be no greater thanthe pre-development rate of runoff for the same event. Flood flows up to the 1%annual probability event should preferably be contained within the site atdesignated temporary storage locations unless it can be shown to have nomaterial impact in terms of nuisance or damage, or increase river flows duringperiods of river flooding. Exceptions generally only apply where it is not practicalto achieve this due to the size of the hydraulic control unit.The TWA application development designs are not sufficiently mature to facilitatedesign level assessment of surface water runoff volumes or definition ofSustainable Urban Drainage System designs at a site level. The purpose of thesurface water runoff calculations presented in the report is to identify at the sitelevel:greenfield runoff rates; reasonable worst case current brownfield runoff volumes fromimpermeable surfaces if applicable (assuming there are no existing SUDS);andoutline reasonable worst case post development runoff volumes fromimpermeable surfaces in order to mitigate runoff to the current brownfieldrates, and where possible greenfield rates.A method statement for the calculation is presented within Annex 1 to this report.Grouping sites at the river catchment level provides an assessment of thepotential for post-development runoff reduction at the catchment level and at theoverall scheme level. Following discussions with the Environment Agency thispreliminary analysis has not considered runoff from embankments, as these arepermeable and hence can be assumed to generate runoff at the greenfield rate inaccordance with current modelling methods.Runoff estimates for water crossing sites have also not been made. These bridgespredominately span open water, particularly under flood event conditions. Whilestandard bridge drainage provisions will be made at detailed design, these willdrain to the riparian zone. During event conditions these areas will either beinundated, or fully saturated. Rainfall on these areas will be routed quickly to thewater course and hence the concept of a baseline greenfield runoff rate is notrelevant. Furthermore, SUDS are unlikely to be effective in these areas.4.2 Surface Water Runoff Analysis ResultsTable 2 presents a summary of current brownfield and post developmentimpermeable and permeable extents. Table 3 presents a summary of theoutcomes of the surface water calculations. Within this table only those APs forwhich surface water calculations are required are presented. The APs are groupedby the river catchment receiving runoff from the site. For each AP the followingresults are presented for each design event:39
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Transport and Works Act 1992Transpo
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CONTENTSVOLUME 1INTRODUCTION, SCHEM
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Evergreen 3 Project: The ChilternRa
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CONTENTS1 INTRODUCTION 11.1 PURPOSE
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capacity - which was completed in 2
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identified for railway use in the C
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KEY:Scheme BoundaryBicester North S
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Currently the rail corridor is used
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The CRCL plans for new platforms at
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• cumulatively significant effect
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significant effect may arise in rel
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types arising from the project, (eg
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• construction of new infrastruct
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3.3.3 In addition along the corrido
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WarwickshireNorthamptonshireTingewi
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Habitats3.4.8 ERM undertook a preli
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Habitats3.4.17 The works may involv
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Due to the limited land-take of the
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3.6 ARCHAEOLOGY AND CULTURAL HERITA
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Although smaller, the settlements o
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3.7 TRAFFIC AND TRANSPORT3.7.1 Duri
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3.9.3 The purpose of the land quali
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4 METHODOLOGIES FOR ASSESSING ENVIR
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Figure 4.1Diagram Illustrating Nois
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noise level together with the durat
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from station activities. Since the
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4.3.4 The methodology will be based
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Evaluation of Receptor Sensitivity4
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Table 4.7 Levels of Significance of
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4.4 ECOLOGYMethodologyIntroduction4
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4.5 WATER RESOURCESMethodology4.5.1
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Evaluation Criteria4.5.7 With parti
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ased on archaeological work underta
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4.7 TRAFFIC AND TRANSPORTMethodolog
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Subject AreaMagnitude of EffectMajo
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not found.. This will be used to de
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• Best practices for soils handli
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5 PREPARATION OF THE ENVIRONMENTAL
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Annex AProposed Consultation Listfo
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ERM has over 100 officesAcross the
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CONTENTSB1 PREFACE 1B1.1 THE PROJEC
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B1PREFACEB1.1 THE PROJECTB1.1.1B1.1
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B1.4.1The “site”, for the purpo
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B2PUBLIC INFORMATION AND COMPLAINTS
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B3HOURS OF WORKINGB3.1.1B3.1.2B3.1.
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B4.1.2All working areas shall be in
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B4.4 ACCESS AND LOADINGB4.4.1B4.4.2
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Contaminated Materials (Special Pre
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B5TRAFFIC AND TRANSPORTB5.1 OVERVIE
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that steps are unavoidable, an alte
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(i)(ii)(iii)(iv)(v)The provision of
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(ii) For control of traffic leaving
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B6.1.5B6.1.6In order to ensure that
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B6.2.2In order to ensure that these
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xvi.xvii.Plan site layout and take
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B8DISPOSAL OF WASTE AND CONTAMINATE
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B8.2.8B8.2.9B8.2.10Where necessary,
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B9.2.3B9.2.4B9.2.5B9.2.6B9.2.7Provi
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PPG05: Works and maintenance in or
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B9.8.1B9.8.2B9.8.3B9.8.4B9.8.5B9.8.
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B9.11 EMERGENCY AND UNFORESEEN EVEN
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B10.2.3B10.2.4B10.2.5B10.2.6B10.2.7
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B10.4.7All construction works, incl
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ReptilesB10.4.20In areas where high
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B10.7.2All invasive species recorde
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B11.2.1A programme of building insp
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Annex CSummary of AlternativesConsi
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This Annex describes the Options th
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C1.1.1Chinnor BranchThe former Prin
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C1.2.1Routes via the Bicester Milit
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Figure C2Possible Station Locations
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the east of the station which would
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Bicester Interchange StationThe Che
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Site Options Reason for Selection/R
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Site Options Reason for Selection/R
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Name: Langford Lane LevelCrossingOS
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Name: FootbridgeOS Grid Ref.: Not k
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crossing.Name: Manor Farm No 1 (aka
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access route to Middle Farm in lieu
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Annex DDetails of the Noise andVibr
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D1INTRODUCTIONSection 6 of the ES s
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in order to evaluate the noise clim
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D2.1.2ResultsAmbient noise levels w
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Table D2.4Attended Measurement Surv
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MeasurementPositionDate Time Durati
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Date Time DurationNoise Level (Corr
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Date Time DurationNoise Level (Corr
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70 dB(A) in rural, suburban and urb
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Table D3.2Plant Inventory Represent
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Table D3.8Plant Inventory Represent
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D4OPERATIONAL NOISED4.1 NOISE STAND
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Noise levels (a) Corresponding to t
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D5RAIL NOISE MODELLING METHODOLOGYD
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part of the baseline between Oxford
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Table D5.2 Modelled Train Movements
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an existing through line which cont
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Vibration measurements were carried
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Peak Particle Velocity (PPV)Peak Pa
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Upper ThamesClay ValesCharacter Are
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floodplain, many of which are now o
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Vales of the White Horseand Aylesbu
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Industrial activities at Abingdon a
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Annex F1HRAS
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F1ANNEX F1- HABITATS REGULATIONS AS
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F2APPROACHThe approach taken to inf
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to be favourable. They are set by N
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Site name/area/distance fromdevelop
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F4DEVELOPMENT ACTIVITIES AND IMPACT
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Table 4.1Potential Impact / Sensiti
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Annex F2Breeding Birds
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The areas with the highest breeding
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Survey methodologyFour rounds of su
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Subsequent analysis of the data col
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Table 3. Chiltern Railway bird spec
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● Dunnock 2prs 2prs 4prs B 3prs 2
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16. Grandpont17. Hinksey fields18.
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Other species of note included spar
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There were eight UK BAP species. Th
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line towards Bicester and the mainl
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There were x UK BAP species: skylar
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ReferencesBirdLife International (2
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ERMChiltern LineBat Dusk and Dawn S
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Chiltern Line September 2009Bat Dus
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Annex F4Great Crested Newts
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F4-2 METHODSF4-2.1DESK STUDY AND CO
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crested newts (see Table 3.1). This
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F4-2.4.5Egg searchThe leaves of sub
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F4-3 RESULTSF4-3.1DESK STUDY AND CO
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Waterbody HSI ScoreRatingNumber34 0
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F4-4 SUMMARY OF FINDINGS AND RECOMM
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ERMChiltern Line, OxfordGreat Crest
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Chiltern Line, Oxford April 2009Gre
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Chiltern Line, Oxford April 2009Gre
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ERM Habitat Suitability Survey Resu
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3 APPENDIX 3 WATERBODY PHOTOGRAPHSF
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Figure 3.4Pond 8a and bFigure 3.5Po
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Figure 3.8 Pond 11Figure 3.9 Pond 1
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Figure 3.12Pond 13cFigure 3.13 Pond
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Figure 3.16Pond 18cFigure 3.17 Pond
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Figure 3.20 Pond 28Figure 3.21 Pond
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Figure 3.24 Pond 38Figure 3.25Pond
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Figure 3.28 Pond 44Figure 3.29Pond
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Great Crested Newt Presence Survey
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Weather ConditionsDate Range Temp (
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ERMChiltern Line, Oxford - Bicester
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Chiltern Line, Oxford - Bicester Au
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Annex F7Reptiles
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ERMChiltern LineReptile ReportSepte
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Chiltern Line September 2009Reptile
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Annex G1Legislation and PolicyConte
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and structured approach to local wa
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Page 547 and 548: The Sequential TestThe Sequential T
Page 549 and 550: Policy NE9 - Flood Risk Assessment
Page 552: Annex G2Flood Risk Assessment(FRA)
Page 556 and 557: Chiltern Railways Bicester to Oxfor
Page 558 and 559: 4 Surface Water Runoff Assessments
Page 560 and 561: The railway is an essential infrast
Page 562 and 563: 2 Description of Scheme Works2.1 Ov
Page 564 and 565: ParkwaysidingsAP15Gosford and Water
Page 566 and 567: Figure 32.4 AP3 - Bicester Town Sta
Page 568 and 569: Figure 52.6 AP5 - OXD40 Underbridge
Page 570 and 571: Figure 72.8 AP7 - Merton Footbridge
Page 572 and 573: Figure 92.10 AP9 - Oddington Footbr
Page 574 and 575: Figure 112.12 AP11 - Islip Station
Page 576 and 577: Figure 132.14 AP13 - Water Eaton No
Page 578 and 579: Figure 152.16 AP15 - Gosford and Wa
Page 580 and 581: Figure 172.18 AP17 - Aristotle Lane
Page 582 and 583: Figure 192.20 AP19 - Oxford Station
Page 584 and 585: 3 Application of the Sequential Tes
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Page 598 and 599: Greenfield runoff rates;Current Bro
Page 600 and 601: Table 3 Summary of impermeable runo
Page 602 and 603: 5 ConclusionsA Level 2 Flood Risk A
Page 604 and 605: 7 Appendix 1: Surface Water RunoffS
Page 606: Annex HCultural Heritage andArchaeo
Page 609 and 610: RCHME 1996 Recording Historic Build
Page 611 and 612: OARef.NoFeatureType10 ConservationA
Page 613 and 614: Table H2.2Gazetteer of Undesignated
Page 615 and 616: OARef. No128 ArchaeologicalInvestig
Page 617 and 618: OA Feature Type Description SourceR
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Page 638: Annex I1S-Paramics ModelledHighway
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Bus Capacity SurveyService 2/2A/2B/
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Bus Capacity SurveyService 7A/7B -
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Bus Capacity SurveyService S5 - AM
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Bus Capacity SurveyService 500 - AM
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Bus Capacity SurveyService 700 - AM
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Bicester Bus Capacity SurveyService
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Bicester Bus Capacity SurveyService
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Annex I3Personal Injury Road Traffi
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NCTUBBS LANE FOOT CROSSINGTO BE REP
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Annex I5Parking Accumulation
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Annex I6S-Paramics Model Outputs:Bi
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09:5009:4009:3009:2009:1009:0008:50
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09:5009:4009:3009:2009:1009:0008:50
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18:5018:4018:3018:2018:1018:0017:50
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450Average Journey Time for Soutbou
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450Average Journey Time for Northbo
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Annex JAir Quality
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J2DISPERSION MODELLING METHODOLOGY
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J2.3 MODEL INPUTSJ2.3.1Moving Train
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J2.3.3Time varying emissionsAs the
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J3DMRB SCREENING FOR ROAD TRAFFICJ3
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Table J3.2Traffic Data (as Annual A
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J4CALCULATION OF ACID DEPOSITION AN
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Annex KSupporting Calculations forC
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Chiltern Railways Service Level - E
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Table L1Contaminated Land Risk Rank
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- Recreational or other shortterm/s
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Project Team ConsultantsArdent Mana
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Environmental Statement volume 4 - Chiltern Evergreen3

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