Supp Report on P2 Consultation - Chapter 4 Acton Storm Tanks

7/31/2019 Supp Report on P2 Consultation - Chapter 4 Acton Storm Tanks

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110-RG-PNC-00000-000784 | May 2012

Supplementary reporton phase twoconsultation

Chapter 4 Acton Storm Tanks


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Thames Tunnel

Supplementary report on phase two consultation

List of contents

Page number

4 Acton Storm Tanks ....................................................................................... 4-14.1 Introduction ........................................................................................... 4-14.2 Number of respondents ........................................................................ 4-24.3 Site selection ........................................................................................ 4-24.4 Alternative sites .................................................................................... 4-54.5 Management of construction works ...................................................... 4-74.6 Permanent design and appearance .................................................... 4-294.7 Management of operational effects .................................................... 4-344.8 Our view of the way forward ............................................................... 4-44


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List of tables

Table 4.2.1 Number of respondents who provided feedback on Acton StormTanks .................................................................................................. 4-2

Table 4.3.1 View on whether Acton Storm Tanks should be our preferred site(Q2) ................................................................................................... 4-3

Table 4.3.2 Supportive and neutral feedback comments in relation to theselection of our preferred site ............................................................. 4-3

Table 4.3.3 Objections, issues and concerns in relation to the selection of ourpreferred site ...................................................................................... 4-4Table 4.4.1 Suggested alternative sites to Acton Storm Tanks ............................. 4-5Table 4.4.2 Supportive and neutral comments in relation to the availability and

identification of alternative sites .......................................................... 4-6Table 4.5.1 Do you agree that we have identified the right key issues in the site

information paper? (Q4a) ................................................................... 4-7Table 4.5.2 Do you agree that we have identified the right way to address the

key issues? (Q4b) ............................................................................... 4-7Table 4.5.3 Supportive and neutral comments in relation to the identified key

issues during construction .................................................................. 4-8Table 4.5.4 Objections, issues and concerns in relation to the identified key

issues during construction .................................................................. 4-8


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Table 4.5.14 Objections, issues and concerns in relation to construction sitedesign and layout ............................................................................. 4-13

Table 4.5.15 Suggestions for construction site design and layout ......................... 4-13Table 4.5.16 Objections, issues and concerns in relation to the historic

environment during construction ....................................................... 4-13Table 4.5.17 Supportive and neutral feedback comments in relation to the

measures proposed to address the effects on the historicenvironment during construction ....................................................... 4-14

Table 4.5.18 Objections, issues and concerns in relation to the measuresproposed to address the effects on the historic environmentduring construction ........................................................................... 4-14

Table 4.5.19 Objections, issues and concerns in relation to lighting duringconstruction ...................................................................................... 4-15

Table 4.5.20 Objections, issues and concerns in relation to the naturalenvironment (terrestrial) during construction .................................... 4-15

Table 4.5.21 Objections, issues and concerns in relation to the measuresproposed to address the effects on the natural environment(terrestrial) during construction ......................................................... 4-16

Table 4.5.22 Objections, issues and concerns in relation to noise andvibration during construction ............................................................. 4-17

Table 4.5.23 Objections, issues and concerns in relation to the measures

proposed to address the effects of noise and ibration d ring


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Table 4.5.32 Objections, issues and concerns in relation to the measuresproposed to address the effects of transport and access issues

during construction ........................................................................... 4-27Table 4.5.33 Objections, issues and concerns in relation to water and flood

risk during construction ..................................................................... 4-28Table 4.6.1 Do you agree that we have identified the right issues that have

influenced our permanent design for this site? (Q5) ......................... 4-29Table 4.6.2 Please give us your views about our proposals for the permanent

design and appearance of the site (Q6) ........................................... 4-29Table 4.6.3 Supportive and neutral feedback comments in relation to the

permanent design and appearance of the site.................................. 4-30Table 4.6.4 Objections, issues and concerns in relation to the permanent

design and appearance of the site .................................................... 4-31Table 4.6.5 Design suggestions .......................................................................... 4-33Table 4.7.1 Do you agree that we have identified the right key issues in the

site information paper? (Q7a) ........................................................... 4-35Table 4.7.2 Do you agree that we have identified the right way to address the

key issues? (Q7b) ............................................................................. 4-35Table 4.7.3 Objections, issues and concerns in relation to the identified key

issues during operation .................................................................... 4-36Table 4 7 4 S pporti e and ne tral comments in relation to the meas res


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Table 4.7.14 Objections, issues and concerns in relation to planning anddevelopment during operation .......................................................... 4-42

Table 4.7.15 Objections, issues and concerns in relation to socio-economiceffects during operation .................................................................... 4-43

Table 4.7.16 Supportive and neutral comments in relation to transport andaccess during operation ................................................................... 4-43

Table 4.7.17 Objections, issues and concerns in relation to transport andaccess during operation ................................................................... 4-43

Table 4.7.18 Objections, issues and concerns in relation to the measuresproposed to address the effects of transport and access duringoperation........................................................................................... 4-43

Table 4.7.19 Objections, issues and concerns in relation to water and floodrisk during operation ......................................................................... 4-44

Table 4.7.20 Objections, issues and concerns in relation to the measuresproposed to address the effects on water and flood risk duringoperation........................................................................................... 4-44


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4 Acton Storm Tanks

Supplementary report on phase two consultation 4-1

4 Acton Storm Tanks

4.1 Introduction

4.1.1 This chapter covers the feedback comments received during the phase two consultation regarding our preferred site Acton Storm Tanks. This site would receive the main tunnel fromCarnwath Road Riverside and connect the existing local combined sewer overflow (CSO), known as the Acton Storm Relief CSO, to the main tunnel. Acton Storm Tanks was also ourpreferred site to intercept the Acton Storm Relief CSO at phase one consultation.

4.1.2 At phase one consultation, Hammersmith Pumping Station was identified as our preferred site to receive the main tunnel from Barn Elms and drive the long connection tunnel to Acton

Storm Tanks. However, following a review of the tunnelling strategy and the need to extend the main tunnel all the way to the Acton Storm Tanks area means we no longer considerHammersmith Pumping Station to be a suitable site to drive or receive the main tunnel. Instead, at phase two consultation we proposed to use Acton Storm Tanks to receive the maintunnel from Carnwath Road Riverside. For further information regarding the proposals for this site at phase two consultation, refer to the Acton Storm Tanks site information paper.

4.1.3 As part of our phase two consultation we identified three shortlisted sites to receive the main tunnel from Carnwath Road Riverside. The shortlisted sites are:

Commercial units, Stanley Gardens (site 1)

Acton Park Industrial Estate (site 2)

Industrial units, Allied Way (site 3).4.1.4 Where feedback comments were received on any of these shortlisted sites, they are presented in section 4.3 (site selection) and section 4.4 (alternative sites) of this chapter.

Structure of this chapter

4.1.5 This chapter is organised as listed below, which reflects the structure of the phase two consultation feedback form:

section 4.2 Number of respondents

section 4.3 Site selection

section 4.4 Alternative sites

section 4.5 Management of construction works

section 4.6 Permanent design and appearance

section 4.7 Management of operational effects

section 4.8 Our view of the way forward.

4.1.6 In sections 4.3 to 4.7 we present details of the feedback comments raised, the types and total number of respondents, and our response to feedback comments. Where specificobjections, issues or concerns have been raised, the final column of the tables indicates whether, in response to the feedback received:

C we are considering or proposing change or additional mitigation1 to that set out in our phase two consultation material

N we do not propose to amend our proposals.

4.1.7 A full list of the phase two consultation material is set out in annex A to this report. Where a response contains a reference to our website, go to www.thamestunnelconsultation.co.uk

for further information, or to access the documents referenced.

de1

Mitigation here refers to a wide range of measures set out in our phase two consultation proposals including for example, the Air management planand other documents as well as those mitigation measures set out in the PEIR.
http://www.thamestunnelconsultation.co.uk/http://www.thamestunnelconsultation.co.uk/http://www.thamestunnelconsultation.co.uk/


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4.2 Number of respondents

4.2.1 Atotal of 37 respondents provided feedback on Acton Storm Tanks, of which eight were received after the close of phase two consultation. Table 4.2.1 sets out the different groups whoprovided feedback for this site.

Table 4.2.1 Number of respondents who provided feedback on Acton Storm Tanks

Statutory consultees Local authorities Landowners Community consultees Petitions

5 respondents

- Design Council CABE (CABE)

- Consumer Council for Water (CCW)

- English Heritage (EH)

- Environment Agency (EA)

- Greater London Authority (GLA)

2 respondents

- London Borough of Ealing

(LBE)- London Borough of

Hammersmith and Fulham(LBHF)

4 respondents 26 respondents 0 petitions

4.2.2 Feedback on this site was received in a number of forms, including feedback forms and correspondence (emails and letters).

4.3 Site selection

4.3.1 A series of sites is required in order to build and operate the Thames Tunnel project. To determine our preferred scheme, we are undertaking a site selection process using a methodologythat was adopted after consultation with the relevant local authorities and statutory consultees. For further information on our methodology and process, refer to:

Site selection project information paper, which sets out the process we followed to find and select our preferred sites

Site selection methodology paper, which details the methodology used to select construction sites along the route of the main tunnel Site selection background technical paper, which provides supporting technical information to the Site selection methodology papersuch as the engineering requirements for the size

of construction sites.

4.3.2 The results of the site selection process up to phase two consultation are set out in:

Site information papers,which provide summary information on each of our preferred sites, including the reasons for selecting them

Phase two scheme development reportwhich describes how our proposals for the Thames Tunnel project have evolved and provides a detailed account of the site selection processfor each of the preferred sites.

4.3.3 In this section, we set out the feedback comments received in relation to the selection of Acton Storm Tanks as our preferred site, together with our responses. Our responses providerelevant details of the site selection process and its findings up to phase two consultation. Where appropriate we have also identified further work that we have undertaken in relation toour preferred site, such as the preparation of our Preliminary environmental information report(PEIR). As part of the project design development process, we continue to assess how theeffects arising from the proposed development can be addressed. The output of our assessment up to phase two consultation is contained in appendix A of the Design development reportand our PEIR(volume 7).

4.3.4 Where respondents commented on matters relating to management of construction works, permanent design and appearance or the management of operational effects at Acton Storm

Tanks, these are reported in sections 4.5 to 4.7.

Number of respondents

4.3.5 During the phase two consultation, respondents were asked to comment on the decision to select Acton Storm Tanks as our preferred site to receive the main tunnel from Carnwath RoadRiverside (see question 2 of the phase two consultation feedback form, provided in appendix M of the Main report on phase two consultation). Table 4.3.1 sets out details of the differentgroups who responded and were asked to select supportive, opposed/concerned or dont know/unsure. Tables 4.3.2 and 4.3.3 then detail the feedback comments received in relationto this site. It should be noted that not all respondents who provided feedback comments selected supportive, opposed/concerned ordont know/unsure.


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Table 4.3.1 View on whether Acton Storm Tanks should be our preferred site (Q2)

Respondent type Number of respondents

Total Supportive Opposed/concerned Dont know/unsure

Statutory consultees 0

Local authorities 2 1

- LBE

1

- LBHF

Landowners 3 3

Community consultees 16 8 5 3Petitions 0

Total 21 9 5 7

Supportive and neutral feedback comments in relation to our preferred site

Table 4.3.2 Supportive and neutral feedback comments in relation to the selection of our preferred site

Ref Supportive and neutral comments Respondent ID No. Our response

4.3.6 Support the use of the preferred site. EH, (LR)LBE, 8004, LR9447 4 Your support is noted and welcomed.

4.3.7 The preferred site is more suitable than anyalternative sites; alternatives suggestedwould require the relocation of existingbusiness premises.

GLA, 8901 2

4.3.8 The preferred site is more suitable than anyshortlisted site(s).

EH, 8233 2

4.3.9 The site is a suitable size and/or hassufficient capacity to accommodate theproposals.

8233 1 Agreed.

4.3.10 The site is already an operational ThamesWater site owned by Thames Water.

8233 1

4.3.11 Support for changes to the extent of thepreferred site since phase one consultationsince using the northern part of the sitereduces impacts for occupants ofneighbouring residential properties.

GLA, (LR)LBE 2 Your feedback is noted.

4.3.12 Support site selection because the project

needs to be undertaken.

8004 1

4.3.13 Other supportive comments included:

- the tunnel clearly needs to beconstructed and Acton Storm Tanksseems an eminently suitable location,particularly since if the area were to besold off, the alternative would probablybe yet more housing, which residents onthe other side of the road would certainlynot like

8004, 8233 2


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- the site is legally designated for activity.4.3.14 Other qualified support included:

- taken on trust the need for a full-boretunnel upstream and away from the RiverThames.

8901 1

Objections, issues and concerns in relation to our preferred site

Table 4.3.3 Objections, issues and concerns in relation to the selection of our preferred site

Ref Objections, issues and concerns Respondent ID No. Our response

4.3.15 Object to the use of this preferred site. 8001LO, 7170 2 The sites that we consulted on at phase two consultation have beenidentified through an extensive site selection process (see our Siteselection methodology paperon our website). We consulted on andagreed the methodology with key stakeholders including potentiallydirectly affected local authorities and utilised a multidisciplinaryapproach to assess potential CSO sites, main tunnel sites and maintunnel drive options against engineering, planning, environmental,property and community considerations.

We recognise that, given the locations where we are seeking toconstruct and operate the tunnel, many of the shortlisted sites areconstrained. However, based on our assessment we consider that, onbalance, Acton Storm Tanks is the most suitable site. This is because itis a brownfield site, it is in our ownership and the site is large enough to

accommodate all the main works. Use of this site also allows us tocombine construction of the tunnel with interception of the CSO.

For further details on the results of the site selection process includingour assessment of shortlisted sites, refer to appendix A of the Phase twoscheme development report.

4.3.16 Should use/consider an alternative site -specifically one that causes less nuisance toresidential properties.

8630LO 1

4.3.17 The drive strategy and associated use ofthis site needs to be reconsidered.

9098 1 Refer to paragraph 2.5.18 for our response to this feedback comment.

4.3.18 Reasons for selecting this preferred site areflawed/questionable. In particular, the sitehas only been chosen because it is ownedby Thames Water with associated costbenefits, rather than it being the best sitetechnically.

8235 1 We believe that our assessments, which have been carried out inaccordance with the Site selection methodology paper, arecomprehensively explained in appendix A of the Phase two schemedevelopment report.

Based on our assessment we consider that, on balance, Acton StormTanks is the most suitable site. This is because it is a brownfield site, itis in our ownership and the site is large enough to accommodate all the

main works. Use of this site also allows us to combine construction ofthe tunnel with interception of the CSO.

Responses to the detailed points raised can be found in appendix A ofthe Phase two scheme development report.

4.3.19 The scale of effects on the local area andcommunity resulting from the selection ofthis site is unacceptable/has not beenproperly considered.

8001LO, 8235 2 Our site selection process has had regard to possible likely significanteffects on the local area and community, and the environmental impactassessment process will undertake further assessment and recommendany necessary mitigation measures.

The environment and community assessments undertaken as part of


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Ref Objections, issues and concerns Respondent ID No. Our response

site selection considered the number and nature of sensitive receptors,as well as possible likely significant effects from traffic and constructionworks including noise, air quality and visual impact. We also consideredlikely significant effects on employment uses and possible conflict withplanning policy that seeks to protect local amenity. Accordingly, weconsider that the scale of possible likely significant effects on the localarea and community has been adequately considered.

For further details on the results of the site selection process, refer toappendix A of the Phase two scheme development report.

4.3.20 Site selection has been influenced bypolitical pressure.

8235 1 In identifying our preferred sites, we have followed the methodology setout in the Site selection methodology paper. Political pressure has notplayed any part in our site selection process.

4.3.21 Disagree with/not commenting on siteselection due to wider objections to theproposed solution and/or the need for theproject.

8901 1 Refer to paragraph 2.2.32 for our response to this feedback comment.

4.3.22 Do not support changes to the extent of thepreferred site since phase one consultation/do not support the specific location of thesite. Specifically:

- Thames Water needs to clarify whetherthe Car Park at Welstead Way is being

used

- although the changes to the location ofthe construction site benefit residents ofWarple Way, they severely disadvantageresidents in Greenend Road andSaltcoats Road.

8630LO, 8872 2 We can confirm that the Car Park at Welstead Way is not to be used aspart of our proposals for the Thames Tunnel project.

We have considered the effect on residential amenity arising from theuse of Acton Storm Tanks. The new location for our site at Acton StormTanks is considered to have less effect on residents overall. Wetherefore consider the changes to the extent of the site appropriate.

Since selecting Acton Storm Tanks as our preferred site, we have begunassessing the likely significant effects arising from our proposals andhow these will be managed. Refer to our PEIR(volume 7) and draftCode of construction practice (CoCP) for further details.

4.3.23 Need more information in order to commenton site selection.

7021LO 1 Refer to paragraphs 4.3.1 and 4.3.2 for details of the documents that setout where further information on site selection can be found.

Shortlisted sites

4.3.24 No feedback comments were received in relation to the shortlisted sites.

4.4 Alternative sites

4.4.1 During the phase two consultation, respondents were invited to suggest alternative sites that they thought should be used to intercept the Acton Storm Relief CSO and receive the maintunnel from Carnwath Road Riverside instead of Acton Storm Tanks (see question 3 of the phase two consultation feedback form, provided in appendix M of the Main report on phase twoconsultation). The following sites were put forward as possible alternatives:

Table 4.4.1 Suggested alternative sites to Acton Storm Tanks

Ref Alternative site suggestion Reasons Respondent ID No. Our response

Shortlisted sites

4.4.2 Acton Park Industrial Estate The ventilation columns/permanentstructures would be better placed in

9197 1 We did identify and consider this site as a main tunnel reception site. Itis a shortlisted site and is considered less suitable than our preferred


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Ref Alternative site suggestion Reasons Respondent ID No. Our response

the middle of the park, instead of at asite with existing and potentially newhousing developments in closeproximity. This site would also avoidthe need to revisit the site for furtherconstruction work if the CountersCreek relief project diverts someadditional flows into the Warple Waysite.

site at Acton Storm Tanks because its use would result in bothtemporary and permanent loss of employment land and possibly affect anumber of community uses within these areas. We do not own this site;therefore we would need to acquire the land. Further, we would stillneed a site at Acton Storm Tanks to intercept the CSO.

In relation to Counters Creek flood alleviation works, this is a separateproject, which is still at the optioneering stage. A decision has nottherefore been made on what sites will be used to undertake thenecessary works.

For further details on the results of the site selection process, refer toappendix A of the Phase two scheme development report.

Other sites

4.4.3 Barn Elms It is a better and larger site which hasbetter construction access and wouldhave less impact on housing.

8235 1 We need to intercept the Acton Storm Relief CSO and West PutneyStorm Relief CSO; Acton Storm Tanks and Barn Elms are our preferredsites for undertaking these works. These sites have been identified onthe basis of needing to select sites that are in close proximity to theCSOs, which are in fixed locations. Therefore in terms of intercepting theCSOs, Barn Elms and Acton Storm Tanks are not alternative sites toeach other; the Barn Elms site is too far away from the Acton StormRelief CSO and vice versa.

In terms of Barn Elms as an alternative main tunnel site, we need a siteat the start of the main tunnel. After phase one consultation, ourpreferred site to intercept the Acton Storm Relief CSO remained ActonStorm Tanks. In order to identify a potential main tunnel site at the startof the tunnel, we defined a 500m area around the Acton Storm Tankssite to ensure that any potential site would be close enough to ourpreferred CSO site. Barn Elms is not located within 500m of the ActonStorm Tanks site and would not therefore be a suitable alternative toActon Storm Tanks. Further details are contained in chapter 6 andappendix A of the Phase two scheme development report.

It would be feasible to use Barn Elms as a main tunnel site to drive thetunnel to Acton Storm Tanks. The reasons why we consider Barn Elmsless suitable for this use are set out in appendix G of the Phase twoscheme development report.

4.4.4 Respondents also made the following comments in relation to the availability and identification of alternative sites:

Supportive and neutral feedback comments

Table 4.4.2 Supportive and neutral comments in relation to the availability and identification of alternative sites


4.4.5 No alternative sites are available; ThamesWater has done their best to surveyalternative sites.

7404 1 Your support is welcomed and noted.

Objections, issues and concerns

4.4.6 No objections, issues and concerns were raised in relation to the availability and identification of alternative sites.


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4.5 Management of construction works

4.5.1 This section sets out feedback comments received during the phase two consultation in relation to the management of construction works at Acton Storm Tanks. This includes theidentification of site specific issues arising from construction activities and proposals to address the effects of these issues.

4.5.2 During the phase two consultation, respondents were asked whether the site information paper had identified the right key issues associated with Acton Storm Tanks during constructionand the ways to address these issues (see questions 4a and 4b of the phase two consultation feedback form, provided in appendix M of the Main report on phase two consultation). Thefirst part of question 4a and 4b asked respondents to select agree, disagree or dont know/unsure. Where respondents completed this part of the question, the results are set out intables 4.5.1 and 4.5.2. Tables 4.5.3 to 4.5.33 detail the feedback comments received in relation to this site. It should be noted that not all respondents who provided feedback commentsconfirmed whether the right issues and the ways to address those issues had been identified.

Table 4.5.1 Do you agree that we have identified the right key issues in the site information paper? (Q4a)


Total Yes No Dont know/unsure



- LBHF

Landowners 3 2 1

Community consultees 13 8 1 4

Petitions 0

Total 17 10 1 6

Table 4.5.2 Do you agree that we have identified the right way to address the key issues? (Q4b)


Total Yes No Dont know/unsure



- LBHF

Landowners 3 2 1

Community consultees 13 6 4 3

Petitions 0

Total 17 6 7 4

4.5.3 The following sections set out the feedback comments received from respondents in connection to the identification of key issues associated with Acton Storm Tanks during constructionand our proposals to address these issues. Feedback comments are organised under common themes. The themes are:

General themes

General feedback comments on key issues

General feedback comments on measures to address the key issues


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Topic-based themes

Air quality and odour

Construction working hours and programme

Construction site design and layout

Historic environment

Land quality and contamination

Lighting

Natural environment (aquatic)

Natural environment (terrestrial)

Noise and vibration

Open space and recreation

Planning and development

Socio-economic

Structures and utilities

Townscape and visual

Transport and access

Water and flood risk

General feedback comments on the identified key issues

Supportive and neutral feedback comments in relation to the identified key issues

Table 4.5.3 Supportive and neutral comments in relation to the identified key issues during construction


4.5.4 These are matters for experts to commenton/not qualified to comment.

8004 1 While we have a preferred project, the purpose of consultation is toexplore as fully as possible what those with an interest in the projectthink about our preference.

Objections, issues and concerns in relation to the identified key issues

Table 4.5.4 Objections, issues and concerns in relation to the identified key issues during construction

Ref Objections, issues and concerns Respondent ID No. Our response Outcome

4.5.5 The scale of potential effects has not beenproperly assessed and/or underestimated.

8235 1 The key issues in the Acton Storm Tanks site informationpaperare intended to provide a broad overview of the likelysignificant effects and the most significant issues associatedwith the site during construction. It is not however anexhaustive list; a more detailed description of possibleeffects and the methodology through which they have beenidentified and assessed is provided in other technicalreports, including the PEIR(volume 7), Design developmentreportappendix A,Phase two scheme development reportappendix A and Site selection methodology paperand Siteselection background technical paper. We are undertakingan environmental impact assessment, which will include acomprehensive assessment of potential likely significant

effects arising from the proposals. The findings of theassessment, together with any recommendations formitigation, will be available as a part of the Environmentalstatementthat will be submitted with our DCO application.

N

4.5.6 There are more key issues than thoseidentified in the site information paper.

8004 1 N


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General feedback comments on measures to address the key issues

Supportive and neutral comments in relation to the measures proposed to address the key issues

Table 4.5.5 Supportive and neutral comments in relation to the measures proposed to address the key issues during construction


4.5.7 Measures to address potential issues aresatisfactory.

8004 1 Your comment is noted and welcomed.

Objections, issues and concerns in relation to the measures proposed to address the key issues

Table 4.5.6 Objections, issues and concerns in relation to the measures proposed to address the key issues during constructionRef Objections, issues and concerns Respondent ID No. Our response Outcome

4.5.8 Measures suggested to address the issuesshow no commitment towards/devolvesThames Water of its responsibility to dealwith the effects arising from its proposals.

8643 1 If a DCO is granted we would anticipate a series ofrequirements (similar to planning conditions) that wouldcontrol the development. We expect that the mitigationmeasures set out in the Environmental statementthat will besubmitted with the application would form part of theserequirements.

N

4.5.9 Responses to key issues provide noguarantee that effects will be managed,controlled and/or avoided.

8643 1 N

4.5.10 Measures to address potential effects areunsatisfactory/irrelevant because the projectshould not be undertaken.

8191 1 The case for the Thames Tunnel project is set out in detail inthe Needs report, which is available on our website. TheNeeds reportexplains how an independent study groupcalled the TTSS was established in 2000 to examine the

impact of intermittent discharges of storm sewage into theThames Tideway, identify objectives for improvement andpropose potential solutions, while having regard to costs andbenefits.

N

4.5.11 Construction impacts must be minimised atevery stage of construction.

GLA 1 We have sought to avoid or eliminate potential likelysignificant effects wherever possible, both by developingrobust technical solutions to potential issues such as odour,and through our proposals for the permanent site design andlayout. We are also developing a CoCPwhich will set outhow we would manage our construction sites to minimisedisruption to nearby communities.

Measures proposed to address potential likely significanteffects are being further developed and considered as partof the environmental impact assessment. The findings of theassessment, together with any recommendations for

mitigation, will be available as a part of the Environmentalstatementthat will be submitted with our DCO appli cation.

N


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Air quality and odour

Supportive and neutral feedback comments in relation to air quality and odour

Table 4.5.7 Supportive and neutral comments in relation to air quality and odour during construction


4.5.12 The proposals will ensure that odour ismanaged satisfactorily.

7614 1 Your comment is noted and welcomed.

Objections, issues and concerns in relation to air quality and odour

Table 4.5.8 Objections, issues and concerns in relation to air quality and odour during constructionRef Objections, issues and concerns Respondent ID No. Our response Outcome

4.5.13 More information is needed on air qualityand odour effects.

9094LO, 8852 2 We consider that we have undertaken a thorough andcomprehensive consultation exercise. As part of this, wecarefully considered the information we made available atour phase two consultation to ensure that consultees hadsufficient information to respond to the consultation. Thisincluded our PEIR(volume 7, section 4) which sets out ourinitial assessment of likely significant effects on air qualityfrom construction site activities, construction traffic (includingtemporary closure of lanes), emissions from constructionplant and construction related dust. The proposals set out inour draft CoCPare included in the assessment. Odour is notaddressed as there are not expected to be any construction

effects. Further assessment will be undertaken as part ofour on-going environmental impact assessment work andthis, together with any recommendations for mitigation, willbe reported in the Environmental statementto be submittedwith our DCO application. Our DCO application will alsoinclude a CoCPthat will set out measures that must beimplemented by our contractor to address the potentialeffects on air quality during construction. We are confidenttherefore that the information we have provided is sufficient.

N

4.5.14 All drivers of waiting vehicles should switchtheir engines off to reduce air pollution andnoise.

LR9176 1 We have set out measures in our draft CoCPthat will beadopted to limit vehicle and plant emissions, including usinglow emission vehicles, turning off engines when not needed,and minimising vehicle movements around the site. Ourpreliminary assessment outlined in our PEIR(volume 7,section 4) stated that with these measures in place, we do

not expect any significant local air quality effects arising fromvehicle and plant emissions at this construction site. We areundertaking an environmental impact assessment, which willinclude a comprehensive assessment of the likely significanteffects arising from the proposals. The findings of theassessment, together with any recommendations formitigation, will be available as a part of the Environmentalstatementthat will be submitted with our DCO application.

N

4.5.15 Closure of two storm tanks is welcomed, butshould remove them all otherwise the

LBHF, LR9418 2 The four remaining storm tanks would be hydraulicallyisolated and flows transferred to the main tunnel during CSO

N


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existing odour issue will remain. spills. Therefore, although these tanks would remain on thesite, they would no longer be used during CSO spill events,thus reducing existing odour issues.

Supportive and neutral feedback comments in relation to the measures proposed to address the effects of air quality and odour

4.5.16 No supportive or neutral feedback comments were received in relation to the measures proposed to address the effects of air quality and odour during construction.

Objections, issues and concerns in relation to the measures proposed to address the effects of air quality and odour

Table 4.5.9 Objections, issues and concerns in relation to the measures to address the effects of air quality and odour issues during construction


4.5.17 Provide wheel washes to minimise dustmigration and mud.

(LR)LBE 1 Our draft CoCPsets out a range of measures that would beadopted to minimise the likely significant effects of dustincluding measures to reduce dust formation, re-suspensionand presence, monitoring and recording of dust generatingactivities and site training for our construction workforce.These measures are in line with best practice guidelines andmay include wheel washing where appropriate. Details willbe set out in the CoCPthat we will submit with our DCOapplication.

N

4.5.18 The GLA and London Council's BestPractice Guidance (BPG) The control ofdust and emissions from construction anddemolitionshould be implemented.

GLA 1 We can confirm that the Best Practice Guidance has beentaken into account in developing our proposals for this site.Our draft CoCPsets out measures for managing our worksas well as details of the various regulatory regimes and

guidance that we would need to comply with, such as theControl of Pollution Act 1974, the Environmental ProtectionAct 1990, the Health and Safety at Work Act 1974, theMayor of London's Ambient Noise Strategy 2004 and Thecontrol of dust and emissions from construction anddemolition - Best Practice Guidance 2008, as well asvarious British Standards.

N

4.5.19 Existing odour problems at this site. GLA 1 The four remaining storm tanks would be hydraulicallyisolated and flows transferred to the main tunnel during CSOspills. Therefore, although these tanks would remain on thesite, they would no longer be used during CSO spill events,thus reducing existing odour issues.

N

Construction working hours and programme

Supportive and neutral feedback comments in relation to construction working hours and programme

Table 4.5.10 Supportive and neutral comments in relation to the construction working hours and programme


4.5.20 Proposed working hours are reasonable. 9098 1 Your comment is noted and welcomed.


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Objections, issues and concerns in relation to construction work hours and programme

Table 4.5.11 Objections, issues and concerns in relation to construction working hours and programme


4.5.21 Proposed working hours are too long. 8643 1 At most of our sites we plan to carry out the majority ofworks within standard working hours, which are 8am-6pmweekdays, and 8am-1pm Saturdays. We may occasionallyneed to carry out works outside of standard working hoursfor reasons such as undertaking large concrete pours,delivering abnormal, large and heavy loads at times when

there is reduced traffic, or making connections onto theexisting sewer system at night when there is low sewageflow.

Any working outside of standard working hours will besubject to additional conditions to minimise disruption in linewith the CoCPthat is to be submitted with the application.

N

4.5.22 Concerned about overnight/24-hour workinghours.

8630LO 1 N

4.5.23 Lack of transparency on working hours assmall print indicates hours could be longer(extended standard).

8643, 8866 2 In our phase two consultation materials we have set out thelikely working hours for the site. Most work at this site wouldtake place within standard working hours, with a seven-month period of continuous working to install the secondarylining of the main tunnel. Table 2.1 of our site informationpaperfor this site does not propose extended standardhours for this site. Details of the working hours will beincluded in the CoCPto be submitted with our DCOapplication.

N

Supportive and neutral feedback comments in relation to the measures proposed to address the effects of construction working hours and programme

Table 4.5.12 Supportive and neutral feedback comments in relation to the measures proposed to address the effects of construction working hours and programme


4.5.24 Proposed working hours are reasonable. 9098 1 Your comment is noted and welcomed

Objections, issues and concerns in relation to the measures proposed to address the effects of construction working hours and programme

Table 4.5.13 Objections, issues and concerns in relation to the measures proposed to address the effects of construction working hours and programme


4.5.25 Demonstrate what measures would be inplace to safeguard the amenities ofoccupiers of properties within the vicinity of

the site outside of the standard hours,when any ancillary activity is being carriedout at surface level, and from the movementof traffic to and from the site when thissecondary lining is being installed.

(LR)LBE 1 We are developing a CoCPwhich will set out how we wouldmanage our construction sites to minimise disruption tonearby communities. The CoCPwill be submitted with our

DCO application. Further details regarding the CoCPare setout in the Managing construction project information paperand the draft CoCPpublished as part of our phase twoconsultation.

If a DCO is granted, we anticipate a series of requirements(similar to planning conditions) that would control thedevelopment and we expect that the requirements wouldstipulate the application of the construction timings outlinedin the CoCP.

N


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Construction site design and layout

Supportive and neutral feedback comments in relation to construction site design and layout

4.5.26 No supportive or neutral comments were received in relation to construction site design and layout.

Objections, issues and concerns in relation to construction site design and layout

Table 4.5.14 Objections, issues and concerns in relation to construction site design and layout


4.5.27 Issues relating to construction site designand layout included:

- do not destroy the tanks; leave thestructures so that in any future emergencythey can be lined and reused with newcovers/lids.

- why has tunnelling been moved closer toAbinger Road houses?

8324 1 As detailed in our site information paperthe function of thissite has changed since phase one consultation. It is nowproposed that we would receive the main tunnel fromCarnwath Road Riverside and to directly connect to theActon Storm Relief CSO. This means that a different rangeof construction works would be required at this site, resultingin the different layouts set out in our phase two consultationmaterials. Once the Thames Tunnel project is commissionedthere would be no spills from the combined sewer overflowin a typical year. It is therefore not necessary to safeguardthe existing tanks for future use.

We have considered the effect on residential amenity arisingfrom the use of Acton Storm Tanks. The new location for oursite at Acton Storm Tanks is considered overall to have lesseffect on residents. We therefore consider that the changesto the extent of the site are appropriate.

N

Suggestions for construction site design and layout

Table 4.5.15 Suggestions for construction site design and layout

Ref Suggestions for construction site designand layout

Respondent ID No. Our response

4.5.28 Construction activities that cause nuisanceshould be sited away from residentialproperties.

(LR)LBE 1 At this site there are a number of constraints that affect thelayout of our construction works. However, as illustrated inour site information paperwe have located our site supportactivities at the boundary of the site closest to residentialproperties, in order to act as a further buffer to our works.

N

Historic environment

Supportive and neutral feedback comments in relation to the historic environment

4.5.29 No supportive or neutral feedback comments were received in relation to the historic environment during construction.

Objections, issues and concerns in relation to the historic environment

Table 4.5.16 Objections, issues and concerns in relation to the historic environment during construction


4.5.30 Effect of construction activities onadjacent/nearby conservation area.

EH 1 We do not believe that the works will have a detrimentaleffect on the character and appearance of the nearbyBedford Park Conservation Area. We are undertaking ahistoric environment assessment as part of ourenvironmental impact assessment, which will be reported in

N


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the Environmental statement. This will identify any potentialsignificant effects of our proposed construction activities,including effects on the setting of historic assets, and anymitigation required to address such effects. We areconsulting with English Heritage as a part of this process.The findings of the assessment, together with anyrecommendations for mitigation, will be available as a part ofthe Environmental statementthat will be submitted with ourDCO application.

Supportive and neutral feedback comments in relation to the measures proposed to address the effects on the historic environment

Table 4.5.17 Supportive and neutral feedback comments in relation to the measures proposed to address the effects on the historic environment during construction


4.5.31 Mitigation proposed to address the issues issatisfactory.

EH 1 Your comment is noted.

Objections, issues and concerns in relation to the measures proposed to address the effects on the historic environment

Table 4.5.18 Objections, issues and concerns in relation to the measures proposed to address the effects on the historic environment during construction


4.5.32 More information is needed on historicenvironment mitigation.

EH 1 An assessment of the likely significant effects on the historicenvironment is being completed as a part of ourenvironmental impact assessment. We are consulting with

English Heritage as a part of this process. The findings ofthe assessment, together with any recommendations formitigation, will be available as a part of the EnvironmentalStatementthat will be submitted with our DCO application.

Additionally, our draft CoCP(provided at phase twoconsultation) sets out a range of measures to safeguard thehistoric environment during construction. Such measuresinclude confirmation that works close to listed buildings willbe undertaken in accordance with all requirements set out inthe DCO and that protection measures, as required, will beput in place at the start of the works. We will also notifyEnglish Heritage and the LBE prior to undertaking works andwill continue to engage with them closely on the planning ofthe works.

N

Land quality and contamination

4.5.33 No feedback comments were received in relation to land quality and contamination during construction.

Lighting

Supportive and neutral feedback comments in relation to lighting

4.5.34 No supportive or neutral feedback comments were received in relation to lighting during construction.


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Objections, issues and concerns in relation to lighting

Table 4.5.19 Objections, issues and concerns in relation to lighting during construction


4.5.35 Concerned about light pollution arising fromconstruction activities.

8235 1 As set out in our draft CoCP, construction lighting would beprovided to ensure the safety and security of the site andwould be designed to comply with the provisions of BS5489,Design of Road Lighting, where applicable. For example, thelighting would be located and directed so as to minimiseintrusion into occupied residential properties and on

sensitive areas. Further details on lighting can also befound in our Managing construction project informationpaper. Additionally a Lighting management planwould beprepared by our contractor. The plan would set outappropriate lighting solutions for the site. Part B of ourCoCP, which will be available as part of our DCO applicationsubmission, will set out further details on lighting duringconstruction.

N

Supportive and neutral feedback comments in relation to measures proposed to address the effect of lighting

4.5.36 No supportive or neutral feedback comments were received in relation to the measures proposed to address the effect of lighting during construction.

Objections, issues and concerns in relation to measures proposed to the effect of lighting

4.5.37 No objections, issues or concerns were received in relation to the measures proposed to address the effect of lighting during construction.

Natural environment (aquatic)

4.5.38 No feedback comments were received in relation to the natural environment (aquatic) during construction.

Natural environment (terrestrial)

Supportive and neutral feedback comments in relation to the natural environment (terrestrial)

4.5.39 No supportive or neutral feedback comments were received in relation to the natural environment (terrestrial) during construction.

Objections, issues and concerns in relation to the natural environment (terrestrial)

Table 4.5.20 Objections, issues and concerns in relation to the natural environment (terrestrial) during construction


4.5.40 Loss of trees arising from constructionactivities.

(LR)LBE 1 Development at this site will result in the loss of someexisting trees and vegetation. However, our proposalsinclude new landscaping including planting along CanhamRoad and in the area between the site and properties onCanham Road, which will offer a long-term benefit to thearea. We will be completing an arboricultural assessment ofthe 26 trees on site, to confirm details including species,condition and any requirements for works on those trees.The wider storm tanks site has areas of establishedlandscaping and it is anticipated that the loss of some treesin the construction site would not have a long-termdetrimental impact on ecology in this area. For the trees thatwould be retained, our draft CoCPsets out how we wouldprotect existing trees during construction. Measures such as

N

4.5.41 Other natural environment issues included:

- more detailed assessment of the treesneeds to be provided as part of thesubmission and a justification as to whythey are required to be felled andcannot/should not be incorporated into thelandscaping proposals for the resultant site

- details of the means and extent ofprotection of the trees and their rootsystems would need to be provided

- Thames Water should consider the

(LR)LBE, LR9447 2 N


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potential importance of any existingbuildings for protected species. protective fencing and prohibition of storing material withinthe protected area would be implemented prior to works

being undertaken as specified in British Standard BS5837,where practicable and based on consultation with the LBEtree officer.

Our preliminary assessment of the likely significant effectson wildlife associated with the construction of the tunnel isset out in our PEIR(volume 7, section 6) and identifies thehabitat baseline including the existing buildings on the site.

An assessment of the likely significant effects on the naturalenvironment is being completed as a part of ourenvironmental impact assessment. The findings of theassessment, together with any recommendations formitigation, will be available as a part of the Environmentalstatementthat will be submitted with our DCO application.

4.5.42 More information is needed on the effect ofconstruction activities on the naturalenvironment.

LR9491 1 We consider that we have undertaken a thorough andcomprehensive consultation exercise. We carefullyconsidered the information we made available at our phasetwo consultation to ensure that consultees had sufficientinformation to respond to the consultation. This included ourPEIR(volume 7, section 6) which sets out our initialassessment of likely significant effects on terrestrial ecologyfrom construction site activities including piling, groundexcavation and construction traffic movements and the use

of construction machinery would produce noise, vibrationand lighting effects, and site mobilisation, includingclearance activities The proposals set out in our draft CoCPare included in the assessment.

An assessment of the likely significant effects on the naturalenvironment is being completed as a part of ourenvironmental impact assessment. The findings of theassessment, together with any recommendations formitigation, will be available as a part of the Environmentalstatementthat will be submitted with our DCO application.We are confident therefore that the information we haveprovided is sufficient.

N

Supportive and neutral feedback comments in relation to the measures proposed to address effects on the natural environment (terrestrial)

4.5.43 No supportive or neutral feedback comments were received in relation to the measures proposed to address the effects on the natural environment (terrestrial) during construction.

Objections, issues and concerns in relation to measures proposed to address the effects on the natural environment (terrestrial)

Table 4.5.21 Objections, issues and concerns in relation to the measures proposed to address the effects on the natural environment (terrestrial) during construction


4.5.44 Locate construction activities within the siteto avoid sensitive and designated areas.

LR9491 1 All construction activities will be contained within ourproposed construction site, which does not include anysensitive or designated areas.

N

4.5.45 Other natural environment mitigation LR9447, LR9491 2 Our PEIR(volume7, section 6) provides a preliminary N


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comments included:

- maximise opportunities to enhancebiodiversity through an effective mitigationpackage

- take steps to secure the long-termprotection of any protected species whichmay be impacted.

assessment of the likely significant effects on terrestrialecology arising from the works. An assessment of the likelysignificant effects on the natural environment is beingcompleted as a part of our environmental impactassessment. This will consider the effects on notablespecies. The findings of the assessment, together with anyrecommendations for mitigation, will be available as a part ofthe Environmental statementthat will be submitted with ourDCO application.

Noise and vibration

Supportive and neutral feedback comments in relation to noise and vibration

4.5.46 No supportive or neutral feedback comments were received in relation to noise and vibration during construction.

Objections, issues and concerns in relation to noise and vibration

Table 4.5.22 Objections, issues and concerns in relation to noise and vibration during construction


4.5.47 Noise and vibration from construction traffic. LR9176 1 As set out in our Acton Storm Tanks site information paper,the contractor would be required to implement noise andvibration control measures at the site, in line with therequirements of the CoCPand to gain prior approval to theconstruction work from the LBE through a Section 61application under the Control of Pollution Act, which wouldset out specific working methods and the measures tominimise noise and vibration. This would ensure that thenoise levels are reasonable and best practical means areapplied. The measures would be agreed with local authorityenvironmental health officers. Additionally, we wouldimplement measures to minimise noise and vibration fromplant and works including the selection of appropriate plantand equipment, the suitable siting of equipment and the useof site hoardings and temporary stockpiles to provideacoustic screening. Details of the measures to be adoptedfor the construction works will be set out in the CoCPto besubmitted with our DCO application.

Our PEIR(volume 7, section 9) sets out our preliminary

qualitative assessment of likely significant noise andvibration effects from construction site activities and noisefrom construction traffic on roads outside the site. Theproposals set out in our draft CoCPare included in theassessment. The PEIRassessment used Defra's Londonnoise maps.

Our Environmental statement, whichwill be submitted withour DCO application, will include an assessment of noiseand vibration that will be completed in line with themethodology that is compliant with BS5228, BS6472 and

N

4.5.48 General vibration effects arising fromconstruction activities.

8001LO 1 N


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BS7385 and which has been agreed with the LBE.

4.5.49 More information is needed on noise andvibration.

8001LO, 9094LO, 8901 3 We consider that we have undertaken a thorough andcomprehensive consultation exercise. We carefullyconsidered the information we made available at our phasetwo consultation to ensure that consultees had sufficientinformation to respond to the consultation. This included ourPEIR(volume 7, section 9) which sets out our initialassessment of likely significant noise and airborne andground-borne vibration effects from construction site

activities, noise from construction traffic on roads outside thesite and noise and vibration from operation of the site,together with assumptions that reflect the proposals in ourdraft CoCP. The PEIRAssessment used Defra's Londonnoise maps.

Our Environmental statementthatwill be submitted with ourDCO application and will include a noise and vibrationsection that will be completed in line with the methodologythat is compliant with BS5228, BS6472 and BS7385 and hasbeen agreed with the LBE. Our DCO application will alsoinclude CoCPthat will set out measures that would beimplemented by our contractor during the works to addressthe potential likely significant effects of noise and vibration.We are confident therefore that the information we haveprovided is sufficient.

N

Supportive and neutral feedback comments in relation to the measures proposed to address the effects of noise and vibration

4.5.50 No supportive or neutral comments were received in relation to the measures proposed to address the effects of noise and vibration during construction.

Objections, issues and concerns in relation to the measures proposed to address the effects of noise and vibration

Table 4.5.23 Objections, issues and concerns in relation to the measures proposed to address the effects of noise and vibration during construction


4.5.51 More information is needed on mitigation. 8235 1 Our PEIR(volume 7, section 9) sets out our initial qualitativeassessment of likely significant noise and vibration effectsfrom construction site activities, noise from constructiontraffic on roads outside the site, and noise and vibration fromoperation of the site. The proposals set out in our draftCoCPare included in the assessment. The PEIRassessment used Defra's London noise maps.

Our Environmental statement, whichwill be submitted withour DCO application, will include a full assessment of likelysignificant noise and vibration effects, completed in line withthe methodology that is compliant with BS5228, BS6472 andBS7385 and has been agreed with the LBE.

Our CoCPsets out a range of measures that would beadopted by our contractor to minimise noise and vibrationfrom plant and works. These measures include selection ofappropriate plant and equipment, siting of equipment, use of

N

4.5.52 Mitigation proposed to address the issues isinadequate/insufficient, no mitigatingfeatures were proposed to overcome noise.

8235 1 N


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enclosures and temporary stockpiles to provide acousticscreens. Specific measures such as acoustic suppressionsystems, operation of equipment in a mode that minimisesnoise, and shutting down equipment when not in use arealso identified in our CoCP. Our contractor would berequired to comply with the requirements of the CoCP. TheCoCPalso states that our contractor would be required toapply for Section 61 consents (s.61) under the Control ofPollution Act 1974. These would set out specific working

methods and the measures to minimise noise and vibrationas well as any appropriate monitoring measures to beagreed with local authority environmental health officers.

4.5.53 Noise assessment should be undertaken atthe Acton Park Industrial Estate.

9094LO 1 An assessment of the likely significant effects of noise andvibration is being completed as part of our environmentalimpact assessment. We are consulting with local authorityenvironmental health officers as a part of this process. Thefindings of the assessment, together with anyrecommendations for mitigation, will be available as a part ofthe Environmental statementthat will be submitted with ourDCO application.

N

Open space and recreation

4.5.54 No feedback comments were received in relation to open space and recreation during construction.

Planning and development4.5.55 No feedback comments were received in relation to planning and development during construction.

Socio-economic

Supportive and neutral feedback comments in relation to socio-economic effects

4.5.56 No supportive or neutral feedback comments were received in relation to socio-economic effects during construction.

Objections, issues and concerns in relation to socio-economic effects

Table 4.5.24 Objections, issues and concerns in relation to socio-economic effects during construction


4.5.57 Detrimental effect on business operations,including the operation of Acton ParkIndustrial Estate and occupiers.

9094LO 1 As set out in our PEIR(volume 7, section 10) during thescoping process based on the project information availableat the time, it was considered that there was little, if any,

potential for the businesses in the area to experience anysignificant socio-economic effects as a result of theproposed development. Accordingly, a preliminaryassessment of the sensitivity of the businesses has not beenmade as we believe there is little, if any, potential forbusinesses in the area to experience any significant socio-economic effects as a result of the proposed development.Nevertheless, we continue to engage with local businessowners and operators to ensure that this view is sound. Iflikely significant effects are identified, they will be addressed

N


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as part of our environmental impact assessment that will bereported in the Environmental statementto be submittedwith our DCO application.

4.5.58 Effect on property prices. 8630LO 1 Landowners may have a statutory entitlement to claimcompensation for the diminution of the value of theirproperty due to the construction of the tunnel. In addition tothe statutory process we have developed an Exceptionalhardship procedurethat sets out how we will assess claimsfrom householders who contend that they are suffering

exceptional hardship as a result of being unable to sell theirproperty because it is potentially impacted by the currentlypublished Thames Tunnel project proposals. We havepublished a Guide to the Thames Tunnel compensationprogramme, which sets out details of compensation thatwould be available during construction for damage or loss,required protection measures and compulsory purchase.

N

4.5.59 Effect on ability to sell/rent property. 8001LO 1 N

4.5.60 Effect of construction activities on quality oflife.

8235 1 Our PEIR(volume 7) provides a preliminary assessment ofthe likely significant effects of the project on a range oftopics, including noise and vibration, air quality (includingdust emissions) and odour, and transport, based on amethodology that has been agreed with the LBE. We areundertaking an environmental impact assessment, which willinclude a comprehensive assessment of the likely significantadverse effects arising from the proposals. The findings ofthe assessment, together with any recommendations formitigation, will be available as a part of the Environmentalstatementthat will be submitted with our DCO application.

We are also preparing a Health impact assessmentforsubmission with our DCO application that will examine thelikely significant effects of the proposed development onhuman mental and physical health and wellbeing andpossible effects within the population. The findings of thisstudy will inform the design for this site as well as mitigationmeasures to address any significant effects.

N

4.5.61 Proximity of construction site to residentialproperties.

GLA, (LR)LBE 2 Our site selection process, as detailed in our Site selectionmethodology paperincluded an assessment of theshortlisted sites against five 'community' considerations tohelp determine their suitability. They included proximity to

sensitive receptors (including residential and schools),socio-economic, health and equality considerations. OurPhase two scheme development reportprovides anoverview of how each site was chosen.

Our PEIR(volume 7) provides a preliminary assessment ofthe likely significant effects of the scheme on residentialamenity and acknowledges that the works could reduce theenvironmental amenity for residents living at the EmlynGardens Estate, the Factory Quarter and residentialproperties to the north and west of the site. These impacts

N


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would be restricted to day-time working hours. They are alsounlikely to be continuous over the working day, but are likelyto rise and fall in intensity as different activities of theconstruction process take place. The measures set out inour draftCoCPwill contribute to mitigating these effects.

We are preparing anenvironmental impact assessment thatwill include a comprehensive assessment of the likelysignificant effects arising from the proposals. The findings ofthe assessment, together with any recommendations for

mitigation, will be available as a part of the Environmentalstatementthat will be submitted with our DCO appli cation.

Supportive and neutral feedback comments in relation to the measures proposed to address socio-economic effects

4.5.62 No supportive or neutral comments were received in relation to the measures proposed to address the socio-economic during construction.

Objections, issues and concerns in relation to the measures proposed to address socio-economic effects

4.5.63 No objections, issues and concerns were received in relation to the measures proposed to address socio-economic effects during construction.

Structures and utilities

Supportive and neutral feedback comments in relation to structures and utilities

4.5.64 No supportive or neutral feedback comments were received in relation to structures and utilities during construction.

Objections, issues and concerns in relation to structures and utilities

Table 4.5.25 Objections, issues and concerns in relation to structures and utilities during construction


4.5.65 Structural damage to residential buildingsarising from tunnelling.

8643 1 Our Settlement project information paperprovidesinformation on our approach to controlling and limitingground movement, which can cause settlement, associatedwith construction of the tunnel. It is acknowledged thatconstruction of the tunnel will cause some small movementsin the ground, the level of which will depend on a range offactors including the size and depth of construction works aswell as existing ground conditions. The use of moderntunnelling methods and the depth of our tunnels, which aregenerally much deeper than most other tunnels underLondon, minimise the likelihood of any potential groundmovement.

We are assessing the potential likely significant effects ofground movement in advance of the works and, wherenecessary, will carry out protective measures. We will alsomonitor actual ground movement during and after thetunnelling to check that the ground is reacting as predicted.We will also carry out a defects survey on buildings locatedover, or close to, our tunnels and worksites where weconsider this necessary. The method used for assessingsettlement is similar to that used for the Channel Tunnel Rail

N


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Link, the Jubilee Line Extension, and Crossrail.

In the unlikely event of damage occurring to property due toour construction works taking place nearby, disturbancecompensation may be available as detailed in A guide to theThames Tunnel compensation programme.

Supportive and neutral feedback comments in relation to the measures proposed to address the effects on structures and utilities

4.5.66 No supportive or neutral feedback comments were received in relation to the measures proposed to address the effects on structures and utilities during construction.

Objections, issues and concerns in relation to the measures proposed to address the effects on structures and utilities

Table 4.5.26 Objections, issues and concerns in relation to the measures proposed to address the effects on structures and utilities during construction


4.5.67 Mitigation proposed to address the issuesrelating to structures and utilities isinadequate/insufficient.

8643 1 Our Settlement project information paperprovidesinformation on our approach to controlling and limitingground movement, which can cause settlement, associatedwith construction of the tunnel. We acknowledge thatconstruction of the tunnel would cause some smallmovements in the ground, the level of which would dependon a range of factors including the size and depth ofconstruction works as well as existing ground conditions.The use of modern tunnelling methods and the depth of ourtunnels, which are generally much deeper than most othertunnels under London, minimise the likelihood of any

potential ground movement.We are assessing the potential likely significant effects ofground movement in advance of the works and, wherenecessary, will carry out protective measures. We wouldmonitor actual ground movement during and after thetunnelling to check that the ground is reacting as predicted.We would carry out a defects survey on buildings locatedover, or close to, our tunnels and worksites where weconsider this necessary. The method used for assessingsettlement is similar to that used for the Channel Tunnel RailLink, the Jubilee Line Extension, and Crossrail.

In the unlikely event of damage occurring to property due toour construction works taking place nearby, disturbancecompensation may be available as detailed in A guide to theThames Tunnel compensation programme.

N

Townscape and visual

Supportive and neutral feedback comments in relation to townscape and visual effects

Table 4.5.27 Supportive and neutral comments in relation to townscape and visual effects during construction


4.5.68 Raising the storm tank walls is not an impacton residential amenity.

(LR)LBE 1 Your comments supporting the proposal to raise the storm tank walls arenoted and welcomed.


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Objections, issues and concerns in relation to townscape and visual effects

Table 4.5.28 Objections, issues and concerns in relation to townscape and visual issues during construction


4.5.69 Effect of construction activities, machineryand site hoarding on the local townscape.

(LR)LBE 1 A preliminary assessment of likely significant townscape andvisual effects has been undertaken and is presented in thePEIR(volume 7, section 11). We are undertaking atownscape and visual impact assessment as part of ourenvironmental impact assessment that will identify any likelysignificant effects of our proposed construction activities and

any mitigation required to address such effects, for examplewell-designed visually attractive hoardings or early plantingto create visual screening where appropriate. Our draftCoCPalso sets out measures to ensure that the townscapeand visual effects of construction are minimised, forexample, through protection of existing trees to BS5837Trees in Relation to ConstructionRecommendations andthe use of appropriate capped and directional lighting whenrequired.

N

4.5.70 Stockpiling of any excavated material wouldneed to be agreed with the local planningauthority.

(LR)LBE 1 Your comments are noted and we will continue to liaise withthe LBE on our proposals.

N

Supportive and neutral feedback comments in relation to the measures proposed to address the effects on townscape and visual

4.5.71 No supportive or neutral feedback comments were received in relation to the measures proposed to address the effects on townscape and visual during construction.

Objections, issues and concerns in relation to the measures proposed to address the effects on townscape and visual

Table 4.5.29 Objections, issues and concerns in relation to the measures proposed to address the effects on townscape and visual during construction


4.5.72 Above ground construction works should bescreened.

(LR)LBE 1 Our draft CoCPsets out our approach to providing sitehoardings and screens, which will be designed to reduce theimpact of construction works on the local townscape. Weare currently considering including early planting at somesites, where appropriate, to provide visual screening duringconstruction.

N

Transport and access

Supportive and neutral feedback comments in relation to transport and access

Table 4.5.30 Supportive and neutral feedback comments in relation to transport and access during construction


4.5.73 Proposed site access, in particular use ofWarple Way, Canham Road and StanleyGardens by traffic associated with the useand by construction traffic would beconsidered appropriate.

(LR)LBE 1 Your support is noted and welcomed.

4.5.74 Support proposed construction traffic routes. 9098 1


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4.5.75 Supportive general comments including: anyreduction in the number of the proposedaccesses would be welcomed.

(LR)LBE 1

Objections, issues and concerns in relation to transport and access

Table 4.5.31 Objections, issues and concerns in relation to transport and access during construction


4.5.76 It is not clear what the scale of the effect will

be/the assessment to date is very vague,particularly in respect of impacts associatedwith using roads on the surroundinghighway network in particular The Vale(A4020).

GLA 1 As part of our PEIR(volume 7, section 12) we assessed the

likely significant construction transport effects of theproposed development on pedestrian and cycle routes; busand other public transport routes and patronage; parking;and highway layout, operation and capacity. This includedan assessment of the use of The Vale (A4020) as aconstruction traffic route as detailed in the PEIR. As part ofthe assessment we considered the likely significant effectsof lorry and (where applicable) barge transport, based on amethodology that has been discussed and agreed with theLBE and TfL. The PEIRwas available as part of our phasetwo consultation.

We acknowledge that this is a preliminary assessment. Weare preparing a full Transport assessmentfor submission aspart of our DCO application. The Transport assessmentwillconsider the cumulative effects of our works with other

developments in the local area.

N

4.5.77 Construction traffic will cause trafficcongestion.

LBHF, LR9418 2 Access to this site is proposed via Canham Road, asillustrated in the site information paper. We are reviewing theproposed routes that construction traffic would use as part ofour transport assessment. If the transport assessmentidentifies any potential likely significant effects arising fromcongestion, we will develop mitigation measures to minimisethe likely significant effects of any disruption.

We would minimise lorry movements at this site by usingmaterial excavated from the shaft to fill two existing stormtanks to ground level. This would enable us to transport lessmaterial off-site. It is expected that at the peak ofconstruction (year two), an average of 16 lorries would visit(travel to and from) the site each working day as indicated in

the PEIR(volume 7, Section 12). In the context of existingtraffic in the local area, the expected construction traffic isnot considered to be significant andis not likely to result incongestion.

We are also developing a CoCP, (a draft was provided aspart of our phase two consultation), which will includerequirements for a Traffic management planto ensure thatconstruction traffic is carefully controlled to minimise anypotential likely significant effects on the road networkincluding access to the local area, as well as setting out

N

4.5.78 Construction traffic will exacerbate existingtraffic congestion.

LBHF 1 N


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construction traffic routes, site access/egress points,signage and monitoring procedures. As part of our PEIR(volume 7, section 12) we assessed the likely significantconstruction transport effects of the proposed developmenton pedestrian and cycle routes; bus and other publictransport routes and patronage; parking; and highwaylayout, operation and capacity. This included an assessmentof the use of The Vale ( A4020) as a construction trafficroute as detailed in the PEIR. As part of the assessment we

considered the likely significant effects of lorry and (whereapplicable) barge transport, based on a methodology thathas been discussed and agreed with the LBE and TfL. ThePEIRwas available as part of our phase two consultation.

We acknowledge that this is a preliminary assessment. Weare preparing a full Transport assessmentfor submission aspart of our DCO application. The Transport assessmentwillconsider the cumulative effects of our works with otherdevelopments in the local area.

4.5.79 Construction traffic will cause road damage. (LR)LBE 1 We do not envisage that construction traffic would causeany damage to local roads as, where possible, we woulduse the major road network, which is designed and built tohandle this type of traffic. We would monitor any likelysignificant effects on other roads used by our constructionvehicles to ensure that any damage that is directly

attributable to the project is quickly repaired. Measures toensure the restoration of roads to their existing condition areset out in our draft CoCPpublished at phase twoconsultation.

N

4.5.80 Proposed access route to the site will resultin the loss of on-street car parking at WarpleWay, Stanley Gardens and Canham Road.

(LR)LBE 1 Some on-street car parking would be temporarily lost duringconstruction. We are currently considering possiblealternative locations for replacement on-street parking andare working with the LBE on the need for this and (whereappropriate) alternative position of spaces.

N

4.5.81 Effect of constructio

Documents

Supp Report on P2 Consultation - Chapter 4 Acton Storm Tanks