Price & Myers

April 2020

Flood Risk Assessment and Sustainable Drainage Report

Rayners Lane

Flood Risk Assessment and Sustainable Drainage Report

Prepared by:

Reviewed by:

Approved by:

Job Number:

Report Reference:

Dominic Heyna-Francis BEng MSc

Sabrina Ram MEng

Dimitris Linardatos BEng MSc CEng MICE FIHE

28202

445-PAM-XX-XX-RP-C-0001-1

Date Revision Notes/Amendments/Issue Purpose

February 2020 Draft For LBH Review

April 2020 1 For planning

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Contents Page

1.1 Policy Overview

2.1 Existing Drainage

4.1 Flood Risk from Watercourses 4.2 Flood risk from Groundwater 4.3 Flood Risk from Surface Water and Overland Flows 4.4 Flood Risk from Reservoirs 4.5 Summary of Flood Mitigation Measures

5.1 Existing Run-off 5.2 Climate Change 5.3 Proposed Run-off

6.1 Store Rainwater for Later Use 6.2 Infiltration 6.3 Attenuation 6.4 Discharge to Watercourse / Surface Water Sewer / Combined Sewer

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Appendix A Topographical Survey Appendix B Thames Water Sewer Records Appendix C CCTV Drainage Survey Appendix D Development Proposals Appendix E Initial Surface Water Drainage Sketches Appendix F Surface Water Calculations Appendix G Drainage Connection Options Report

Contains Ordnance Survey material © Crown copyright. All rights reserved. Licence number 0100058197

Contains British Geological Survey materials © NERC 2020 All rights reserved.

Acronyms

AEP Annual Exceedance Probability

AOD Above Ordnance Datum

CDA Critical Drainage Area

CIRIA Construction Industry Research and Information Association

EA Environment Agency

FRA Flood Risk Assessment

LBH London Borough of Harrow

LFRMS Local Flood Risk Management Strategy

LLFA Lead Local Flood Authority

NGR National Grid Reference

NPPF National Planning Policy Framework

PPG Planning Practice Guidance

SFRA Strategic Flood Risk Assessment

SINC Sites of Importance for Nature Conservation

SWMP Surface Water Management Plan

TfL Transport for London

TW Thames Water

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Executive Summary

Project Brief

Price & Myers were commissioned by Catalyst Housing and Transport for London to produce a

Flood Risk Assessment (FRA) and Sustainable Drainage Report for the proposed development

at the Rayners Lane Station Car Park, within the London Borough of Harrow (LBH).

The site is situated within a Critical Drainage Area (CDA) and part of the site is in Flood Zone 3a

for Surface water, as defined by the Local Authority. Therefore an FRA is required to assess

the risk of surface water flooding. Furthermore as a result of the development proposals, levels

will be raised in the north-west corner of the site, where there is high surface water flood risk.

Therefore the FRA also assesses flood water storage compensation.

The purpose of this report is to summarise flood risk from all sources, focussing on surface

water flooding and floodwater storage, taking into consideration the land raising. The

proposed drainage strategy for the site is then outlined including a detailed SUDS assessment.

Key Findings

A CCTV drainage survey was completed in October 2019. Surface water from the site was

found to discharge to the ‘Sites of Importance for Nature Conservation’ (SINC) land, where

Smart’s Brook is located. Surface water drainage that serves the retail units to the east of the

site was also found to run through the site. Thames Water (TW) have confirmed that this is not

their asset, therefore TW approval is not required. This surface water drainage will be diverted

to avoid the proposed building footprint and will be maintained by Catalyst Housing.

A foul water drain serving adjacent properties runs through the eastern portion of the site,

close to the vehicular entrance. This drain clashes with the proposed tree pits. Therefore, a TW

sewer diversion application has been submitted to divert this foul water drain run.

The north-west corner of the site is at high risk of surface water flooding and levels will be

raised at this location. A flood compensation scheme has been designed to ensure that surface

water is not displaced elsewhere, on a level for level, volume for volume basis. Therefore, it is

demonstrated that the development proposals will increase flood storage provision, reducing

surface water flood risk at the site location and the surrounding areas. Calculations are

provided within this report.

The site is underlain with London Clay which has very poor porosity properties. Therefore,

infiltration systems are not appropriate at the site location.

Drainage Strategy Summary

The existing surface water outfall to Smart’s Brook could not be located and this will be

investigated further for re-use. However, the initial assessment concludes that a new

connection to Smart’s Brook may be required. The existing outfall will be repaired and if this is

not possible, a new outfall will be constructed. Any new outfall structures require LBH

approval.

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In regards to foul water drainage, as advised by the London Borough of Harrow (LBH) the

preferred option is to pump foul water drainage from the site to the TW public sewers in High

Worple. This does not affect the neighbouring SINC land.

TW may prefer a gravity drainage connection, as the public sewer in High Worple is small in

diameter (229mm). The pumped solution would result in higher peak flows to the public

sewers in comparison to a gravity drainage system. Therefore, an alternative foul water

drainage option has been developed going through the SINC land, in case further investigation

and assessment indicates that this option is feasible and acceptable to the Local Planning

Authority.

The SUDS Hierarchy has been applied to the development proposals and following SUDS

systems will be incorporated: blue roofs, permeable paving, below ground cellular storage and

tree pits for surface water storage. A flow control will be used to restrict surface water runoff

rates to 5 l/s per ha (4.90 l/s for this site), which is less than the Greenfield runoff rate for the

site. Surface water will be restricted to 4.90 l/s up to the 1 in 100 year plus 40% climate change

storm event.

The proposed development will be at low risk of flooding from all sources considering the

mitigation measures and the development proposals significantly reduce surface water runoff

rates from the site. Therefore, the proposals will reduce flood risk at the site location and also

in the surrounding areas, including the neighbouring SINC land.

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1 Introduction

Price & Myers have been commissioned to undertake a Flood Risk Assessment (FRA) for the

proposed development at the Rayners Lane Station Car Park site, within the London Borough

of Harrow (LBH).

This report has been carried out in accordance with the National Planning Policy Framework

(NPPF) and the accompanying Planning Practice Guidance (PPG) “Flood Risk and Coastal

Change”. This report also incorporates advice and guidance from the Environment Agency

(EA), the West London Strategic Flood Risk Assessment (SFRA, February 2018), the Harrow

Local Flood Risk Management Strategy (LFRMS, May 2016) and Surface Water Management

Plan (SWMP, October 2011) as well as CIRIA documents.

The NPPF states that an appropriate FRA will be required for all development proposals of 1 ha

or greater in Flood Zone 1 and for any development within Flood Zones 2 or 3. The EA’s

indicative floodplain map shows that the site is in Flood Zone 1 and the site area is greater than

1 ha.

Part of the site falls within Flood Zone 3a for surface water, as defined in the SWMP and the

site is also situated within a Critical Drainage Area (CDA). Levels will be raised where there is a

high risk of surface water flooding. Therefore, an FRA is required.

This FRA will therefore focus on flooding from surface water and flood water displacement.

This report will also summarise flood risk from all sources and outline the proposed drainage

strategy for the site, including a detailed SUDS assessment.

The Harrow SUDS Proforma can be found at the end of this report, in Appendix J.

1.1 Policy Overview

1.1.1 National Planning Policy (2019)

The National Planning Policy Framework states:

“Major developments should incorporate sustainable drainage systems unless there is clear

evidence that this would be inappropriate. The systems used should:

a) take account of advice from the lead local flood authority;

b) have appropriate proposed minimum operational standards;

c) have maintenance arrangements in place to ensure an acceptable standard of operation for

the lifetime of the development; and

d) where possible, provide multifunctional benefits.”

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Planning Practice Guidance, ‘Flood Risk and Coastal Change’ states:

“The decision on whether a sustainable drainage system would be inappropriate in relation to

a particular development proposal is a matter of judgement for the local planning authority. In

making this judgement the local planning authority will seek advice from the relevant flood risk

management bodies, principally the lead local flood authority, including on what sort of

sustainable drainage system they would consider to be reasonably practicable.”

Planning Practice Guidance, ‘Flood Risk and Coastal Change’ refers to the ‘Non-statutory

technical standards for sustainable drainage systems’. This guidance, produced by DEFRA,

states the following:

“For developments which were previously developed, the peak runoff rate from the

development to any drain, sewer or surface water body for the 1 in 1 year rainfall event and the

1 in 100 year rainfall event must be as close as reasonably practicable to the greenfield runoff

rate from the development for the same rainfall event, but should never exceed the rate of

discharge from the development prior to redevelopment for that event.”

1.1.2 Regional Policy

The current London Plan (2016), Policy 5.13 states:

“A Development should utilise sustainable urban drainage systems (SUDS) unless there are

practical reasons for not doing so, and should aim to achieve greenfield run-off rates and

ensure that surface water run-off is managed as close to its source as possible in line with the

following drainage hierarchy:

1 store rainwater for later use

2 use infiltration techniques, such as porous surfaces in non-clay areas

3 attenuate rainwater in ponds or open water features for gradual release

4 attenuate rainwater by storing in tanks or sealed water features for gradual release

5 discharge rainwater direct to a watercourse

6 discharge rainwater to a surface water sewer/drain

7 discharge rainwater to the combined sewer.”

The draft Intend to Publish London Plan (2019), amends the drainage hierarchy slightly,

splitting attenuation above and below ground. Whilst the Secretary of State has issued a range

of directions on this document, these directions do not relate to this policy.

“ 1. rainwater harvesting (including a combination of green and blue roofs) 2. infiltration techniques and green roofs 3. rainwater attenuation in open water features for gradual release 4. rainwater discharge direct to a watercourse (unless not appropriate) 5. rainwater attenuation above ground (including blue roofs) 6. rainwater attenuation below ground 7. rainwater discharge to a surface water sewer or drain 8. rainwater discharge to a combined sewer”.

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1.1.3 Local Policy

Harrow’s Core Strategy (2012) states that “proposals should aim to achieve Greenfield run off

rates. It is recognised that the feasibility of achieving greenfield run off rates in new

development will be influenced by a range of considerations, including site conditions and

financial viability”.

The West London SFRA (February 2018), Table 4-1 ‘Planning Application and Development

Requirements for Major Developments’ states that “The drainage strategy requires information on the proposed SuDS and surface water runoff discharge destination in line with Policy 5.13 of the London Plan. It also requires supporting calculations on the greenfield and proposed development's peak discharge rates and water storage volumes for different rainfall events. These calculations need to ensure that proposed developments are designed to the Non-statutory technical standards for sustainable drainage systems”.

Section 4.2.4 of the West London SFRA refers to the LBH ‘Standard Drainage Requirements’.

This states the following:

“The development is subject to a limitation on a discharge to no more than 5 l/s/ha from all

impermeable areas, consequently there will be a storage implication and the system should be

checked for no flooding for a storm of critical duration and period of 1 in 100 years”.

Section 5.3.2 of the West London SFRA sets out the requirements for developments within

Flood Zone 3a for surface water:

“Where development is proposed for sites within Flood Zones 3a (surface water), evidence

must be submitted to demonstrate that:

1. There will be no increase of flood risk to properties outside of the development boundary.

2. Consultation has been undertaken with the relevant LLFA to consider potential wider

impacts or benefits the development could have on the local surface water catchment.

3. Relevant strategic documents (such as the Thames CFMP, LFRMS and SWMP) have been

reviewed.

4. The LLFA has been consulted to determine if the development should contribute to any

catchment wide flood alleviation schemes being considered by the LLFA (such as a S106

contribution to wider catchment flood risk management infrastructure).”

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2 Site Description and Location

The site is located within the LBH and is situated to the west of Rayners Lane Underground

Station. The site postcode is HA2 9SJ, with National Grid Reference (NGR) TQ127874, with the

following eastings and northings: 512712, 187494. The nearest watercourse to the site is

Smart’s Brook that runs within the Sites of Importance for Nature Conservation (SINC) land.

Smart’s Brook in turn discharges to Yeading Brook to the west of the site (a tributary of the

River Crane). The site location can be seen below in Figure 2.1 below.

Figure 2.1: Site location (West London SFRA, February 2018)

The site is currently in use as a station car park comprising 251 car parking spaces and the

remaining site area is formed of SINC land. Whilst the SINC land is included within the red line

boundary for this application, the proposals within the SINC are limited to drainage works only.

The site is bounded by Transport for London (TfL) railway lines to the north and residential

gardens to the south and west. Rayners Lane Underground Station and retail units bound the

site to the east.

The development site area assessed for the purposes of surface water runoff calculations in

line with standard methodology and practice is 0.965ha. This area is indicated with a red line

Figure 2.2 overleaf. The SINC land, indicated with a blue line, will drain as existing.

Yeading Brook

Smart’s Brook

Site Boundary

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Figure 2.2: Application boundary areas (KCA, 2020).

The development site falls from east to west, towards the SINC land with levels ranging from

50.68m AOD to 45.01m AOD and the full topographical survey can be found in Appendix A.

The SINC land is accessible from the car park, although it is overgrown and in most areas it

was inaccessible. The Environment Agency LIDAR data was used to assess levels within the

SINC land as spot levels were verified on site where there was access to do so. The LIDAR data

and levels verification can be found in Appendix A.

2.1 Existing Drainage

The TW public sewer records (Figure 2.3 and in Appendix B) show that there are foul and

surface water public sewers in High Worple, beyond the site’s access road to the south. The

TW records do not show any foul water drainage within the site boundary. Several surface

water public sewers discharge to Smart’s Brook upstream of the site.

Figure 2.3: Thames Water Sewer Records (December, 2017).

Smart’s Brook

SINC Land boundary

Development site boundary

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A below ground CCTV drainage survey was carried out in October 2019 (refer to Appendix C)

and this found that the existing car park is served by a piped surface water drainage water

drainage system that drains unrestricted flows to the SINC land, where Smart’s Brook is

located.

The surface water outfall within the SINC land was not identified, as the SINC land was

overgrown. The final drain from the car park was found to have standing water in it, that

prevented these runs from being surveyed. The outfall downstream of the site should be

cleared to enable these runs to be fully surveyed.

It was found that a surface water drain running through the site serves the adjacent properties

to the east of the site. This clashes with the proposed buildings, therefore this sewer is to be

diverted. TW have confirmed that this is not their asset. Therefore, the shared surface water

drainage will remain private and will be maintained by Catalyst.

A 150mm diameter foul water drain was identified in the CCTV drainage survey, that runs

through the south-east entrance of the site. The drain serves the neighbouring properties to the

east of the site. It is therefore classified as a public sewer and it requires diversion, to avoid

clashing with the proposed tree pits. At the time of writing, a TW sewer diversion application

had been submitted for the foul sewer diversion.

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3 Development Proposal

It is proposed that the existing car park is developed to provide new residential

accommodation (Use Class C3) and Sui Generis unit at ground floor and public car park along

with associated works. 128 residential units are proposed in total, in four blocks (A to D).

Blocks B, C and D are all six storeys in height and Block A is five storeys. 75 car parking spaces

are proposed along with 82 TfL Cycle Hub spaces. The existing vehicular access will be

modified to serve the new apartments, commuter car parking and the crane access required by

London Underground. No blocks have basement levels and Figure 3.1 shows the development

proposals. The full plans can be found in Appendix D.

It should be noted that no built form is proposed within the SINC land, to the west of the

development area. Therefore this area has not been considered in this section.

Figure 3.1: Proposed layouts (Top Block Layout, KCA 2020, Bottom Landscape Plan Townshend, 2020)

A small area in the north-west corner of the site will be raised as part of the development

proposals. The existing levels in this area range from 45.010m– 45.500m AOD and this will be

raised to 45.800m– 46.050m AOD, to ensure the building is not at risk of surface water flooding

and to allow access into the building at this location.

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4 Flood Risk Assessment

4.1 Flood Risk from Watercourses

4.1.1 Main Rivers

The EA’s indicative floodplain map shows that the site is located in Flood Zone 1, an area at

low risk of flooding from watercourses. Developments in this flood zone do not have any

restrictions, provided they do not increase the risk of flooding elsewhere.

Figure 4.1: from EA Flood Map for Planning (Flood map for planning service, 2019).

Furthermore, the West London SFRA shows that the site is not at risk of flooding from any of

the main rivers identified (Upper Colne, River Lee, Silk Stream, River Brent, River Crane or

River Pinn).

Therefore, it is concluded that the flood risk from main rivers at the site location is low.

4.1.2 Ordinary Watercourses

The SINC land to the west of the site is known to have flooded in recent years and this was

identified through the public consultation process. When the SINC land was visited on the 20th

January 2020, there was evidence that the SINC land had flooded recently, as plants covered

with silt were observed during the site visit. Smart’s Brook is located within the SINC land and

it is culverted to the north and south of the site location (refer to the TW sewer records in

Appendix B). The SINC land is overgrown and difficult to access. Therefore, any drainage

features within the SINC are not maintainable at present.

Site boundary

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The West London SFRA states that “the risk of flooding from ordinary watercourses is covered

within the ‘surface water’ terminology. This aligns with the inclusion of ordinary watercourse

flood risks within the EA’s Risk of Flooding from Surface Water mapping”. Therefore, the

surface water flood maps have been used to assess the risk of flooding from Ordinary

Watercourses (Smart’s Brook).

The surface water flood maps obtained from the West London SFRA (Figure 4.2) shows the 1 in

100 year flood extents. The surface water flood maps were overlaid onto the topographical

survey to obtain the 1 in 100 year surface water flood level within the development area. This

was found to be 45.500m AOD.

Figure 4.2 West London SFRA Surface Water flood maps - 1% AEP (SFRA, accessed April 2020)

The finished floor levels of block D in this area are raised above this design flood level to

46.050m AOD. To gain access into the building, external levels will also be raised in this area

from 45.010m – 45.500m AOD to 45.800m – 46.050m AOD.

As agreed with LBH, a flood compensation scheme has been provided for displaced flood

water between the levels of 45.010 and 45.500m AOD on a level for level, volume for volume

basis. The table below states the volumes of displaced floodwater in 200mm increments.

Band depth (m AOD) Existing volume within band (m3)

45.010-45.210 1.959

45.210-45.410 18.271

45.410-45.500 16.691

Table 4.1 Volumes of water displaced within the floodplain

The flood compensation tank has been designed in accordance with CIRIA C624 and the

storage tank will provide at least the storage volumes in Table 4.1, to match the site’s existing

flood water storage capacity. The vertical impermeable geomembranes within the

Site boundary

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compensation tank will allow flood water to overtop, once flood water reaches the full height of

the impermeable membrane. This ensures that the volume in the crates behind the

geomembrane remains available for the flood water level it is designed to store water for,

ensuring a level for level flood compensation is provided.

Once the flood water level drops, surface water pipes beneath the tank will take this flood

water to the final private manhole within the development site. This discharges directly to

Smart’s Brook. Therefore, flood water will be returned to the floodplain and the tank will be

emptied for any subsequent flood events.

Manhole covers above access hatches will be provided above each section of the flood

compensation tank to ensure access for cleaning and routine maintenance. Refer to Appendix E

for the initial surface water drainage sketches that show the flood compensation tank

arrangements.

The majority of the proposed storage crates are located within the existing floodplain aiming to prevent flood displacement in the first instance. The voids in the crates will allow water to be stored on site at the same location where it is currently stored. Flood water displacement will occur only where the building is proposed. Therefore, surface water storage crates are provided outside the floodplain to compensate this displaced floodwater.

It should be noted that the surface water flood water maps show that there is no connectivity between the watercourse’s floodplain and the site in the 1 in 30-year storm event within the development area. This shows that the ponded water on site is due to the drainage’s inability to transfer surface water from the site to the watercourse. The flood maps also confirm that the watercourse floods a part of the SINC land in this storm event, confirming that there is not sufficient capacity in its channel to accommodate the flows from the incoming drainage pipes. Therefore, floodwater will drain back to the watercourse through the site’s existing drainage system after the flood event. In the proposed scenario, while some of the floodwater will be able to return directly to the watercourse via the 50mm crates (particularly during storm events with a return period higher than 1 in 30 years), most of it will be temporarily trapped on site (as the flood maps currently show). The proposed outlet pipes for the compensation tank mimic existing conditions, allowing flood water from the crates to return to the watercourse after the flood event.

The existing outfall from the car park to Smart’s Brook could not be identified during the SINC

land site visit. This indicates that surface water from the car park either discharges directly to

the SINC land, or that the pipe is below the water level and possibility below the watercourses

bed (partly or overall). It is also possible that the surface water drain has collapsed or is

overgrown and is not functional. As part of the proposals, this outfall will be repaired if

possible, or replaced.

The existing car park currently discharges unrestricted flows to Smart’s Brook. The existing

runoff rate from the car park is 71.07 l/s for the 1 in 1 year rainfall event and 226.91 l/s for the 1

in 100 year rainfall event. It is proposed to attenuate surface water from the car park to 4.9 l/s,

up to the 1 in 100 plus 40% climate change storm event. This is 46 times less than the existing

rate, for the 1 in 100 year storm scenario. Therefore, the development proposals will

significantly reduce surface water runoff rates from the site, reducing flood risk within the SINC

land.

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To conclude, the land raising and compensatory flood storage, the surface water outfall repair

and SUDs will reduce flood risk from Ordinary Watercourses from ‘high’ to ‘low’.

4.2 Flood risk from Groundwater

Groundwater flooding occurs when water originating from sub-surface permeable strata

emerges from the ground, typically after prolonged rainfall.

GEA Ltd carried out ground investigation works at the Rayners Lane site and this report has

been submitted with the planning application. Beneath a rough asphalt surface course and

subbase, made ground was found to depths of 0.7m to 1.40m below ground level. Beneath

this, a thin layer of firm black, brown and dark grey silty gravelly clay was found across the site

and this was underlain with London Clay.

London Clay generally has a low hydraulic conductivity and therefore does not allow free

movement of groundwater. Furthermore, the SFRA shows that the site has less than 25%

susceptibility to groundwater flooding or increased potential for elevated groundwater, see

Figure 4.3 below.

Figure 4.3: West London SFRA, Areas Susceptible to Groundwater Flooding (West London SFRA, accessed Apr 2020).

As no basement levels are proposed and the SFRA classifies this area as the lowest risk

category, it has been concluded that the flood risk from groundwater is low.

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4.3 Flood Risk from Surface Water and Overland Flows

Surface water flooding occurs when intense rainfall is unable to soak into the ground or enter a

drainage system due to blockages or the capacity of the system being exceeded. Overland

flows can also be generated by burst water mains, failed dams and any failure in a system

storing or transferring water.

The EA’s indicative Surface Water Flooding Map, Figure 4.4 below, shows that the majority of

the development site is at “low” and “very low” risk of surface water flooding. The SINC land

is at high risk of surface water flooding, although no built form is proposed in this area. The

map shows that the northwest corner of the development site is at “high” risk of flooding from

surface water, where levels are locally lower. Figure 4.5 overleaf shows that this area of high

surface water flood risk corresponds to the area denoted as Flood Zone 3a for surface water.

This area will be raised above the 1 in 100 year flood level (45.500m) and a flood compensation

scheme has been designed to ensure that flood water is not displaced elsewhere.

The existing car park is formed of hardstanding, generating high overland flows. This causes

surface water ponding, where the levels are locally lower within the development site. A new

positive surface water drainage system will be installed that can accommodate the 1 in 100

year storm event, plus 40% increase due to climate change. SUDS measures, such as blue

roofs, permeable paving, below ground cellular attenuation and tree pits will reduce overland

flows and surface water flood risk.

Proposed levels have been designed to ensure that in an extreme storm event (greater than the

1 in 100 plus 40% climate change), there are no localised low spots that would be prone to

ponding. Overland flow paths will direct surface water towards the SINC land, where levels are

lower.

Figure 4.4 Environment Agency Surface Water Flood Risk Map (Flood Warning and Information Service, 2020)

Site boundary

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Figure 4.5 West London SFRA Policy Map (West London SFRA, accessed April 2020)

To conclude, the land raising and compensatory flood storage, levels design and SUDS

measures will reduce flood risk from surface water and overland flows from ‘high’ to ‘low’.

Flood Zone 3a Surface Water Site boundary

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4.4 Flood Risk from Reservoirs

The EA provides information on flood risk from reservoirs. Figure 4.6 below shows that the site

is not at risk of reservoir flooding.

Figure 4.6 Environment Agency Risk of Reservoir Flooding Map (Flood warning and Information Service, 2020)

4.5 Summary of Flood Mitigation Measures

New surface water drainage will be installed for the proposed development, that can

accommodate the 1 in 100 year plus 40% climate change storm event. Surface water will be

restricted to 5 l/s per hectare (4.90 l/s for this site). The car park currently discharges

unrestricted flows to the SINC, therefore the proposed development will significantly reduce

surface water run off rates and SUDS will reduce overland flows.

The surface water flood maps show that the 1 in 30 year flood extents within the development

site does not have connectivity to the Smart’s Brook floodplain. Therefore, this flooding is

generated from the car park and the proposed SUDS measures within the development site

will reduce this significantly.

Levels will be raised in the north-west corner of the development site, where there is a high risk

of surface water flooding. This will ensure the proposed building is not at risk of flooding. A

flood compensation scheme has been designed, to match the site’s existing flood water

storage capacity.

The proposed levels have also been designed to ensure there are no localised low spots, prone

to surface water flooding. In an extreme rainfall event (greater than the 1 in 100 plus 40%

climate change), surface water will flow towards Smart’s Brook, where levels are lower.

The outfall from the existing car park to Smart’s Brook was found to be flooded. This will be

investigated further and at the time of writing, the relevant conversations were underway and

ongoing. The surface water drain will be repaired if possible, or replaced. This repair or

replacement will reduce flood risk.

Site boundary

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5 Surface Water Run-off Assessment

5.1 Existing Run-off

The total site area is approximately 1.61ha, however there is no built form within the SINC land

and this will drain as existing. Therefore, this area has not been considered in the surface

water run off calculations. The development area is 0.965 ha of this 0.784 is impermeable.

The existing run-off rate for the design storm events was calculated using the modified rational

method for the impermeable site areas, as shown below:

Qx = 2.78 x i x A

Where ‘x’ is the return period in years, ‘A’ is the catchment area in ha and ‘i’ is the rainfall

intensity in mm/hr as estimated from MicroDrainage software.

Q1ex = 2.78 x 32.61 x 0.784 = 71.07 l/s

Q30ex = 2.78 x 80.07 x 0.784 = 174.51 l/s

Q100ex = 2.78 x 104.11 x 0.784 = 226.91 l/s

5.2 Climate Change

The current EA guidance states that for the years 2070 to 2115 there is a 50% chance the peak

rainfall intensity will increase by 20% or more and that there is a 10% chance it will increase by

40% or more. For this residential development, which is classed as ‘More Vulnerable’, with a

design life of 100 years an allowance of an additional 40% is considered appropriate. This

climate change allowance was confirmed to be appropriate through pre-planning consultation

with the London Borough of Harrow. SUDS will be used to reduce peak surface water flow

rates and this is detailed in Section 6.

5.3 Proposed Run-off

The development proposals will increase impermeable areas on site to 0.85 ha. The Lead Local

Flood Authority has confirmed that surface water runoff rates should be restricted to 5l/s her

hectare and for this site, this is 4.9 l/s. The design rainfall event is the 1 in 100 year plus 40%

climate change.

As requested by the LLFA, the following rainfall characteristics were used in the MicroDrainage

calculations (refer to Appendix F):

M5-60(mm) is 21

Ratio “r” is 0.43

Volumetric Run-off Coefficient is 0.95 for winter and summer.

UCWI of 150 is appropriate when calculating Percentage Runoff (PR) for storage purposes.

Rayners Lane Page 21 of 28

28202 / Flood Risk Assessment

Revision 1

6 SUDS Assessment

In accordance with the London Plan, EA guidelines, the SFRA, and CIRIA documents, surface

water run-off should be managed as close to its source as possible. The London Plan states

that all new developments should aim to reduce run-off to greenfield rates “utilising SUDS

unless there are practical reasons for not doing so”.

The LLFA have stated that surface water should be restricted to 4.9 l/s; this is less than the

greenfield runoff rate for the site (7.39l/s, refer to Appendix F).

The possibility of implementing SUDS at the site was assessed using a hierarchy of preferred

surface water management methods. The following paragraphs discuss the various methods in

order of that hierarchy and evaluate the site’s suitability for each method. Refer to Appendix E

for the initial surface water drainage sketches, showing the arrangement of SUDS.

6.1 Store Rainwater for Later Use

Rainwater harvesting promotes the storage and re-use of rainwater collected from roofs and

hard surfaced areas. This type of system contributes to the reduction of runoff rates and

volumes within a development. However, the capacity of rainwater harvesting systems to

attenuate rainwater depends on the water use within the buildings these systems serve. If there

is no activity in the building and the harvester is full, no attenuation will be provided during a

subsequent storm event. In the worst case scenario, the rainwater harvester will provide no

attenuation.

As blue roofs are being incorporated, there is insufficient space at roof level to accommodate a

rainwater harvesting system. If the blue roofs were replaced with a rainwater harvesting

system, a below ground storage tank would be required to store grey water and a pump would

be required to take grey water up 6 storeys to the flats. It would be difficult to specify and

accommodate such pumps within the building. Considering energy consumption of the pump

and associated risk of failure, the sustainability benefits of the system were not considered to

outweigh the disadvantages, concluding that rainwater harvesting was not deemed

appropriate for the new development.

6.2 Infiltration

The site is underlain with London Clay which is impermeable. Therefore, infiltration systems

are not appropriate at the site location.

6.3 Attenuation

It is proposed to attenuate surface water runoff using blue roofs, permeable paving and tree

pits. 1,292.6m2 of blue roofs will be provided, that are 120mm deep. Permeable pavements will

Rayners Lane Page 22 of 28

28202 / Flood Risk Assessment

Revision 1

be used for all car parking bays, excluding areas where HGV access is required for London

Underground. Eleven tree pits will provide 3.6m3 of surface water storage each and all of the

aforementioned systems will provide additional surface water treatment benefits.

The remaining attenuation volume will be provided in 2 below ground cellular attenuation

tanks (with a total volume of 412m3). There is insufficient space within the site to

accommodate open water features although raingardens have been incorporated into the

development proposals.

6.4 Discharge to Watercourse / Surface Water Sewer / Combined Sewer

Attenuated surface water will discharge to Smart’s Brook, at a peak rate of 4.9 l/s up to the 1 in

100 plus 40% climate change storm event. The existing outfall will be investigated for re-use

and if it is not possible to repair, a new outfall will be constructed. The least intrusive route

from the development site to Smart’s Brook has been agreed with the Ecological Consultant,

should a new outfall be required. Refer to Appendix G that further details the surface water

drainage connection options.

Rayners Lane Page 23 of 28

28202 / Flood Risk Assessment

Revision 1

7 Surface Water Maintenance Strategy

The successful implementation and operation of a SUDS system depends on a robust and clear

maintenance strategy being implemented. The following measures should form part of the

site’s proposed management plan.

It is envisaged that the site drainage will be private and will be owned and maintained by

Catalyst. However, all shared drainage will be constructed to adoptable standards. SUDS will

be maintained by Catalyst and the following will form part of the overall maintenance regime

for the site.

SUDS

Element

Maintenance

Maintenance

Schedule

Required Action Typical Frequency

Blu

e R

oo

fs

Monitoring /

Inspections

Inspect all components including soil

substrate, vegetation, drains, irrigation

systems, membranes and roof

structure for proper operation, integrity

of waterproofing and structural

stability

Annually and after

severe storms

Inspect soil substrate for evidence of

erosion channels and identify any

sediment sources

Inspect drain inlets to ensure

unrestricted runoff from the drainage

layer to the conveyance or roof drain

system

Inspect underside of roof for evidence

of leakage

Regular

Maintenance

Remove debris and litter to prevent

clogging of inlet drains and

interference with plant growth

Half yearly and

annually or as

required

During establishment i.e. year one,

replace dead plants as required

Monthly -but usually

responsibility of

manufacturer

Post establishment, replace dead

plants where > 5% of coverage

Annually in autumn

Remove fallen leaves and debris from

deciduous plant foliage

Half yearly or as

required

Remove nuisance and invasive

vegetation, including weeds

Mow grasses, prune shrubs and

manage other planting (if appropriate)

as required – clippings should be

removed and not allowed to

accumulate

Rayners Lane Page 24 of 28

28202 / Flood Risk Assessment

Revision 1

SUDS

Element

Maintenance

Maintenance

Schedule

Required Action Typical Frequency

Remedial

Actions

If erosion channels are evident, these

should be stabilised with extra soil

substrate similar to the original

material, and sources of erosion

damage should be identified and

controlled

As required

If drain inlet has settled, cracked or

moved, investigate and repair as

appropriate

Rain

Ga

rden

s Regular

Maintenance

Weed spray with environmentally

friendly chemicals

Half yearly

Clear leaves and litter Half yearly

Road sweeping to ensure rain garden

inlets are swept

Half yearly

Plants to be pruned Half yearly

Tre

e p

its

Monitoring /

Inspections

Inspect silt accumulation rates and

establish appropriate removal

frequencies

Half yearly

Regular

Maintenance

Remove litter and debris Monthly, or as

required)

Manage other vegetation and remove

nuisance plants

Monthly at start, then

as required

Inspect inlets and outlets Monthly

Occasional

Maintenance

Check tree health and manage tree

appropriately

Annually

Remove silt build-up from inlets and

surface and replace mulch as

necessary

Annually, or as

required

Water As required - in

periods of drought

Perm

eab

le P

avin

g

Monitoring /

Inspections

Initial inspection Monthly for three

months after

installation

Inspect for evidence of poor operation

and/or weed growth – if required, take

remedial action

Three-monthly, 48

hours after large

storms in first six

months

Inspect silt accumulation rates and

establish appropriate brushing

frequencies

Annually

Monitor inspection chambers Annually

Regular

Maintenance

Brushing and vacuuming -standard

cosmetic sweep over whole surface

Once a year after

autumn leaf fall

Rubbish and litter removal As required

Rayners Lane Page 25 of 28

28202 / Flood Risk Assessment

Revision 1

SUDS

Element

Maintenance

Maintenance

Schedule

Required Action Typical Frequency

Remedial

Actions

Remediate any landscaping which

through vegetation maintenance or

soil slip, has been raised to within

50mm of the level of the paving.

As required

Remedial work to any depressions,

rutting and cracked or broken blocks

considered detrimental to the

structural performance or a hazard to

users, and replace lost jointing

material

Rehabilitation of surface and upper

substructure by remedial sweeping

Every 10 to 15 years or

as required

Att

en

uati

on

Tan

k

Monitoring /

Inspections

Inspect all inlets, outlets, vents,

overflows and control structures to

ensure they are working as they should

Annually or after

severe storms

Regular

Maintenance

Inspect and identify any elements that

are not operating correctly.

Monthly for three

months, then Half

yearly or as required.

Remove sediments / debris from catch

pits / gullies and control structures

Annually, after severe

storms or as required

Remedial

Actions

Repair inlets, outlets, vents, overflows

and control structures.

As required

S

ma

rts B

roo

k O

utf

all

Regular

Maintenance

Remove litter and debris Monthly, or as

required

Cut the grass/ vegetation Monthly during

growing season

Inspect marginal and bankside

vegetation and remove nuisance plants

(for first 3 years)

Monthly, at start, then

as required

Inspect inlets, outlets, banksides,

structures, pipework etc. for evidence

of blockage and/or physical damage

Monthly

Inspect water body for signs of poor

water quality

Monthly from May –

October

Hand cut submerged and emergent

aquatic plants (at minimum of 0.1 m

above pond base; include max 25% of

pond surface)

Annually

Remove 25% of bank vegetation from

water’s edge to a minimum of 1 m

above water level

Tidy all dead growth before start of

growing season

Rayners Lane Page 26 of 28

28202 / Flood Risk Assessment

Revision 1

Remove sediment from any forebay. Every 1–5 years, or as

required

Remove sediment and planting from

one quadrant of the main body of

ponds without sediment forebays.

Every 5 years, or as

required

Occasional

Maintenance

Remove sediment from the main body

of Smart’s Brook when cross sectional

area is reduced by 20%.

With effective pre-

treatment, this will

only be required

rarely, e.g. every 25–

50 years

Remedial

Actions

Repair erosion or other damage As required

Replant, where necessary

Realign rip-rap or repair other damage

Repair / rehabilitate inlets, outlets and

overflows. Table 7.1 SUDS Maintenance Strategy as taken from the CIRIA SUDS Manual

Effective SUDS design must assess all foreseeable risks during construction and maintenance.

These must be mitigated during the detailed design stages where effective design will aim to

avoid, reduce and mitigate risks.

This process will also require input from the principal contractor who will ensure the

construction of SUDS components are carried out in a safe and sustainable manner.

Rayners Lane Page 27 of 28

28202 / Flood Risk Assessment

Revision 1

8 Foul Water Assessment

As outlined in Section 2.1, the site has no foul water drainage at present, with the exception of

the foul water public sewer that crosses the entrance to the site. This discharges to the TW

foul water sewer within High Worple. This is at the high point of the site therefore a gravity

connection to the public sewers is not possible at this location.

As advised by LBH, the preferred foul water drainage option pumps foul water drainage from

the development to this existing connection to the public sewers.

The foul water public sewer in High Worple is small in diameter (229mm). Therefore, TW may

not approve a pumped solution to the public sewers, as this will result in higher peak flows to

the public sewers in comparison to a gravity drainage system. Therefore, the alternative foul

water drainage option has been developed that passes through the SINC land. This would

allow a gravity connection to the foul water sewers in High Worple. Refer to the Drainage

Connection Options report in Appendix G for further details.

For the purposes of this application, the pumped solution has been progressed and this has

been agreed with LBH.

All proposed shared networks will be designed to Adoptable Standards as outlined in Sewers

for Adoption – 7th Edition and in accordance with Build Regulations Part H.

The proposed peak foul water flows from the site are calculated using the figure of 4000

l/dwelling/day as outlined in Sewers for Adoption 7th Edition.

The development will include the construction of 128 residential dwellings which, assuming

total gravity connection, equates to a potential proposed peak foul water flow of:

4000 l/dwelling/d x 128 dwellings x 3 =17.7 l/s

Note: A peaking factor of 3 is used as it is assumed that the building is in use for 8 hours over

a 24 hour time period.

A ‘Pre-development Enquiry’ was submitted to TW to confirm capacity exists within the

receiving public sewers. Their response, contained in Appendix H, shows that the existing foul

water public sewer can accommodate the foul water discharge from the proposed

development with a gravity drainage solution. Further consultation is required with TW to

confirm if the pumped solution is acceptable.

A sewer connection application to TW will be required at the detailed design stages (under

Sections106 of the Water Industry Act 1991) for consent to connect to the public sewers.

Rayners Lane Page 28 of 28

28202 / Flood Risk Assessment

Revision 1

9 Conclusions

The EA’s flood map for planning shows site is situated in Flood Zone 1 and is at low risk of

flooding from main watercourses.

The north-west corner of the site is at high risk of flooding from surface water (Surface Water

Flood Zone 3a) and Ordinary watercourses (Smart’s Brook). The entire site is situated within a

CDA, as defined by the local Borough.

The following flood mitigation measures will be put in place, to reduce flood risk from Smart’s

Brook and from surface water flooding:

• Levels will be raised in the northwest corner of the site, to ensure the building finished

floor levels are above the 1 in 100 year flood level

• A flood compensation tank has been designed to ensure the existing floodplain volume is

maintained

• The existing surface water connection to Smart’s Brook will be repaired, as this was found

to be flooded. If this cannot be repaired, a new fully functional connection from the site to

Smart’s Brook will be formed.

• Blue roofs, permeable paving, below ground cellular storage and tree pits will be used to

attenuate surface water to 4.9l/s, up to the 1 in 100 year storm event, plus 40% climate

change.

The above mitigation measures will reduce surface water and ordinary watercourse flood risk

from ‘high’ to ‘low’. The site is at low risk of flooding from all other sources. Additionally, the

above mitigation measures will also deliver an improvement within the SINC land.

Further investigation is required to confirm if the existing surface water outfall to Smart’s

Brook can be re-used. Any works in close proximity to Smart’s Brook requires LBH consent.

The preferred foul drainage option will pump foul water drainage to the high point of the site,

as agreed with LBH. This will then discharge to the public sewers in High Worple. If TW confirm

a pumped solution is not acceptable, a new gravity connection to the foul water sewer could be

constructed, through the SINC land, that eventually discharges to the public sewer in High

Worple. LBH approval would be required in this instance.

A Section 106 agreement (under the Water Industry Act 1991) is required from TW for all new

connections, prior to construction. All works within the SINC land should be carried out in

accordance with the Ecological Consultants recommendations.

Therefore, the proposed redevelopment has an acceptable flood risk within the terms and

requirements of NPPF. The proposed development surpasses the draft London Plan

requirements, that states developments should discharge at greenfield runoff rates. The

proposed redevelopment also meets LBH requirements, as stated in the West London SFRA

and the Harrow ‘Sustainable Drainage Requirements’ document.

Rayners Lane

28202 / Flood Risk Assessment

Revision 1

Appendix A Topographical Survey

4

5

.

5

0

4

7

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5

0

4

5

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5

0

4

7

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5

0

4

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0

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0

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5

0

4

5

.

5

0

4

8

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0

0

4

8

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0

0

4

7

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5

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4

7

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0

0

4

6

.

5

0

4

6

.

5

0

4

6

.

0

0

4

6

.

0

0

Sloping ceiling arrows point up

Stair/step arrows point up

LEGEND

STANDARD ABBREVIATIONS

See www.plowmancraven.co.uk for full terms and conditions of contract.

Roof arrows point down

Assumed detail

Silver DCC

3D Topographical Survey

This survey is commensurate with band F accuracy, as outlined in theRICS survey detail accuracy banding table

CLIENT

PROJECT TITLE

80 Cannon StreetLondonEC4N 6HL

Rayners Park StationCar Park

The survey grid shown on this drawing is positioned on Ordnance Survey(OS) National Grid, obtained by multiple network RTK GPS observations

All levels are in metres and are above Ordnance Survey Newlyn Datumderived by multiple network RTK GPS observations

CHECKED

PRESENTATION

DRAWING No.

PC PROJECT No.

SCALE

38949-001T-RAYN-01-1

1:200 @ A0

38949-001 DGR

A

DATE OF ORIGINAL SURVEY June 2019

ISSUE

Due to the inherent instability of paper materials, drawings plotted on paper may bestretched and distorted - dimensions scaled from paper plots should therefore betreated with caution

This drawing has been produced for the purpose of the original commissioning agent.Plowman Craven Limited will accept no responsibility for details that are subsequently found to be theconsequence of undisclosed facts or that were obscured from view at the time of survey or that havebeen altered since the survey.

Inspection Cover

Hand Basin

Fire HydrantFire Hose Reel

Fire Extinguisher

Fire Alarm

GullyG

IC

HBh height

FHR

FEFH

FA

Typ Typical

VP

V

Vent Pipe

Vent

T Tiles

Sky Skylight

Rolled Steel Joist

Recessed Door Mat

Rain Water Pipe

Notice Board

Sump Level

Junction Box

Cover LevelCL

Cables

Cupboard

Concrete Paving Slabs

Duct CoverDuct Height

Down Pipe

Concrete

Electrical Inspection Cover

Electrical Switchgear

Drainage ChannelDrC EIC

ESG

DCDH

DP

CPS

Cup

Cab

Conc RSJ

SL

SB

RWP

Sign Board

RDM Rad Radiator

Brick Retaining Wall

Brick WallBeam Soffit Level

Break Glass Point

Air Conditioner

Arch Level

Arch Spring Level

Cable Television ICCTV

BW BSL

ATM Automated Telling Machine

BRW

BGP

AL

ASL

Pl P

PlasterPost

NBO/H Overhead

MinMax

MinimumMaximum

LJB

Light

A/C

Closed Circuit TelevisionCCTV

HandrailHR

ColumnCol

Water HeaterWH

Pavement LightPLt

AlarmAlm

Illuminated Advertising BoardABIAdvertising BoardAB

BollardB

ConduitCon

Fire Alarm Control PanelFACPFire BellFB

Fire Exit SignFX

Gate Line AttendantGLA

Help PointHP

LIB Line Indicator BoardLP Lamp Post

Passenger Operated MachinePOM

SignS

SCe Sloping CeilingSD Smoke Detector

Smoke OutletSOElectrical SocketSo

Spr SprinklerSTN Survey Control Station (PGM)Sw Electrical Switch

VM Vending Machine

Control PanelCP

CabinetCa

Cable TrayCT

Se Sensor

WorktopWt

Rodding EyeRE

Emergency Train StopETS

Fire Protection EquipmentFPE

Spk Speaker

SAP Station Announcement Point

Tel Public TelephoneTIB Train Indicator Board

Tr Transformer

Electricity MeterEM

Beam HeightBH

Arch HeightAH

Spring HeightSH

FuseF

Hand DrierHD

Electrical Distribution BoardDBDuctD

BatteryBatt

Control BoxCB

M Monitor

CounterCtr

Blanking PlateBP

Data OutletDO

TSo Telephone Socket

LT LUL Telephone

AerialAe

ISSUES & REVISIONS

SHEET LAYOUT

Issue Details By Date

A prov1 01/07/19PCL

38949-001T-RAYN-01-1

Drawing Incomplete and Unchecked

Unless otherwise stated, levels have been taken to finished floor surface

All quoted dimensions are in metres

Drawing units are metres

2 Lea Business ParkLower Luton Road

Plowman Craven House

Tel: +44 (0)1582 765566Email: post@plowmancraven.co.ukWeb: www.plowmancraven.co.uk

LondonSE1 0AX

115 Southwark Bridge Road

Tel: +44 (0)207 490 7700

HarpendenHertfordshireAL5 5EQ

38949-001T-RAYN-01-2

N

This drawing utilises, and extends, drawing '38949T-RAYN-01A',surveyed by Plowman Craven in December 2017

A prov2 04/07/19PCLDrawing Incomplete and Unchecked

SERVICE ABBREVIATIONS

(AR) Assumed RouteCR Cable Riserd Depth of service (approx)Dd Depth to top of duct(e) Empty Duct

IL Invert Level

(R) From Records(UTL) Unable to Lift without damage(UTT) Unable to Trace

HV High Voltage

(NFI) No Further Information

WD Way Duct

UNKNOWN SERVICE

SURFACE WATER DRAINAGE

INFORMATION CANNOT BE GUARANTEED.

ELECTRO-DETECTION TECHNIQUES HAVE BEEN USED IN THELOCATION OF UNDERGROUND SERVICES. THE RESULTS ARE NOT INFALLIBLE AND TRIAL EXCAVATIONS MUST BE CARRIEDOUT TO CONFIRM SERVICE IDENTIFICATION, POSITIONS ANDPARTICULARLY DEPTHS. ALTHOUGH ALL REASONABLE EFFORTHAS BEEN MADE IN SEARCHING AVAILABLE RECORD DRAWINGS,THE COMPLETENESS OF THE UNDERGROUND SERVICE

Note: Pipe sizes in mmAll drainage 100 unless otherwise stated

ELECTRICITYTELEPHONE

GASWATER

CAUTIONARY NOTES

SERVICE LEGEND

UNDERGROUND CHAMBER

FOUL DRAINAGE

CABLE TV

A 23/07/19PCLOriginal Issue

5

1

.

5

0

5

2

.

5

0

5

2

.

0

0

5

2

.

0

0

5

1

.

0

0

5

1

.

0

0

5

0

.

5

0

5

0

.

5

0

5

0

.0

0

4

8

.

5

0

4

8

.

5

0

4

8

.

5

0

4

8

.

5

0

4

8

.

5

0

4

8

.

5

0

48.50

4

8

.

5

0

4

8

.

5

0

4

8

.

5

0

4

8

.

5

0

48.50

4

9

.

5

0

4

9

.

0

0

4

9

.

0

0

4

8

.

0

0

4

8

.

5

0

4

8

.

5

0

Sloping ceiling arrows point up

Stair/step arrows point up

LEGEND

STANDARD ABBREVIATIONS

See www.plowmancraven.co.uk for full terms and conditions of contract.

Roof arrows point down

Assumed detail

Silver DCC

3D Topographical Survey

This survey is commensurate with band F accuracy, as outlined in theRICS survey detail accuracy banding table

CLIENT

PROJECT TITLE

80 Cannon StreetLondonEC4N 6HL

Rayners Park StationCar Park

The survey grid shown on this drawing is positioned on Ordnance Survey(OS) National Grid, obtained by multiple network RTK GPS observations

All levels are in metres and are above Ordnance Survey Newlyn Datumderived by multiple network RTK GPS observations

CHECKED

PRESENTATION

DRAWING No.

PC PROJECT No.

SCALE

38949-001T-RAYN-01-2

1:200 @ A0

38949-001 DGR

A

DATE OF ORIGINAL SURVEY June 2019

ISSUE

Due to the inherent instability of paper materials, drawings plotted on paper may bestretched and distorted - dimensions scaled from paper plots should therefore betreated with caution

This drawing has been produced for the purpose of the original commissioning agent.Plowman Craven Limited will accept no responsibility for details that are subsequently found to be theconsequence of undisclosed facts or that were obscured from view at the time of survey or that havebeen altered since the survey.

Inspection Cover

Hand Basin

Fire HydrantFire Hose Reel

Fire Extinguisher

Fire Alarm

GullyG

IC

HBh height

FHR

FEFH

FA

Typ Typical

VP

V

Vent Pipe

Vent

T Tiles

Sky Skylight

Rolled Steel Joist

Recessed Door Mat

Rain Water Pipe

Notice Board

Sump Level

Junction Box

Cover LevelCL

Cables

Cupboard

Concrete Paving Slabs

Duct CoverDuct Height

Down Pipe

Concrete

Electrical Inspection Cover

Electrical Switchgear

Drainage ChannelDrC EIC

ESG

DCDH

DP

CPS

Cup

Cab

Conc RSJ

SL

SB

RWP

Sign Board

RDM Rad Radiator

Brick Retaining Wall

Brick WallBeam Soffit Level

Break Glass Point

Air Conditioner

Arch Level

Arch Spring Level

Cable Television ICCTV

BW BSL

ATM Automated Telling Machine

BRW

BGP

AL

ASL

Pl P

PlasterPost

NBO/H Overhead

MinMax

MinimumMaximum

LJB

Light

A/C

Closed Circuit TelevisionCCTV

HandrailHR

ColumnCol

Water HeaterWH

Pavement LightPLt

AlarmAlm

Illuminated Advertising BoardABIAdvertising BoardAB

BollardB

ConduitCon

Fire Alarm Control PanelFACPFire BellFB

Fire Exit SignFX

Gate Line AttendantGLA

Help PointHP

LIB Line Indicator BoardLP Lamp Post

Passenger Operated MachinePOM

SignS

SCe Sloping CeilingSD Smoke Detector

Smoke OutletSOElectrical SocketSo

Spr SprinklerSTN Survey Control Station (PGM)Sw Electrical Switch

VM Vending Machine

Control PanelCP

CabinetCa

Cable TrayCT

Se Sensor

WorktopWt

Rodding EyeRE

Emergency Train StopETS

Fire Protection EquipmentFPE

Spk Speaker

SAP Station Announcement Point

Tel Public TelephoneTIB Train Indicator Board

Tr Transformer

Electricity MeterEM

Beam HeightBH

Arch HeightAH

Spring HeightSH

FuseF

Hand DrierHD

Electrical Distribution BoardDBDuctD

BatteryBatt

Control BoxCB

M Monitor

CounterCtr

Blanking PlateBP

Data OutletDO

TSo Telephone Socket

LT LUL Telephone

AerialAe

ISSUES & REVISIONS

SHEET LAYOUT

Issue Details By Date

A prov1 01/07/19PCL

38949-001T-RAYN-01-1

Drawing Incomplete and Unchecked

Unless otherwise stated, levels have been taken to finished floor surface

All quoted dimensions are in metres

Drawing units are metres

2 Lea Business ParkLower Luton Road

Plowman Craven House

Tel: +44 (0)1582 765566Email: post@plowmancraven.co.ukWeb: www.plowmancraven.co.uk

LondonSE1 0AX

115 Southwark Bridge Road

Tel: +44 (0)207 490 7700

HarpendenHertfordshireAL5 5EQ

38949-001T-RAYN-01-2

N

This drawing utilises, and extends, drawing '38949T-RAYN-01A',surveyed by Plowman Craven in December 2017

A prov2 04/07/19PCLDrawing Incomplete and Unchecked

SERVICE ABBREVIATIONS

(AR) Assumed RouteCR Cable Riserd Depth of service (approx)Dd Depth to top of duct(e) Empty Duct

IL Invert Level

(R) From Records(UTL) Unable to Lift without damage(UTT) Unable to Trace

HV High Voltage

(NFI) No Further Information

WD Way Duct

UNKNOWN SERVICE

SURFACE WATER DRAINAGE

INFORMATION CANNOT BE GUARANTEED.

ELECTRO-DETECTION TECHNIQUES HAVE BEEN USED IN THELOCATION OF UNDERGROUND SERVICES. THE RESULTS ARE NOT INFALLIBLE AND TRIAL EXCAVATIONS MUST BE CARRIEDOUT TO CONFIRM SERVICE IDENTIFICATION, POSITIONS ANDPARTICULARLY DEPTHS. ALTHOUGH ALL REASONABLE EFFORTHAS BEEN MADE IN SEARCHING AVAILABLE RECORD DRAWINGS,THE COMPLETENESS OF THE UNDERGROUND SERVICE

Note: Pipe sizes in mmAll drainage 100 unless otherwise stated

ELECTRICITYTELEPHONE

GASWATER

CAUTIONARY NOTES

SERVICE LEGEND

UNDERGROUND CHAMBER

FOUL DRAINAGE

CABLE TV

A 23/07/19PCLOriginal Issue

43.179m

45.210m

46.194m

46.688m

44.637m

46.108m

46.602m

43.340m

44.219m

46.025m

46.683m

43.567m

44.181m

46.232m

46.845m

43.864m

44.089m

46.482m

43.363m

43.797m

46.735m

44.452m

44.809m

43.868m

47.195m

44.613m

45.188m

44.577m

47.320m

45.222m

45.765m

45.377m

45.576m

45.302m

46.948m

46.022m

45.825m

45.9

45.75

45.75

45.9

45.6

46.8

1. This drawing is to be read in conjunction with allrelevant Architect's, Engineer's and specialists' drawingsand specifications.

2. Do not scale from this drawing in either paper or digitalform. Use written dimensions only. To check that thisdrawing has been printed to the intended scale this barshould be 50mm long @ A1 or 25mm long @ A3.

3. Health & Safety :All specific drawing notes are to be read in conjunctionwith the project "Information Pack" and "Site Rules".

4. All existing ground levels are taken from theEnvironment Agency LiDAR DSM © Open GovernmentLicenec

Issued for Information1 19.09.19 PJ SR

Ver AmendmentDrawn EngDate

Drawn Eng

Scales

Drawing No Ver

Consulting Engineers37 Alfred Place London WC1E 7DPT 020 7631 5128 F 020 7462 1390E mail@pricemyers.com www.pricemyers.com

Notes :

Status

RAYNERS LANE

SINC LANDRAYNERS LANE

PJ SR

1:250 at A1 1:500 at A3

SK607 1

FOR INFORMATION NOT FOR CONSTRUCTION

Rayners Lane

28202 / Flood Risk Assessment

Revision 1

Appendix B Thames Water Sewer Records

Thames Water Utilities Ltd Property Searches, PO Box 3189, Slough SL1 4WW DX 151280 Slough 13

searches@thameswater.co.uk www.thameswater-propertysearches.co.uk

0845 070 9148

Groundwise Searches Ltd Suite 8 Chichester House 45Chichester Road SOUTHEND ON SEA SS1 2JU

Search address supplied Rayners Lane, High Worple, Harrow, HA2 9SX

Your reference 20883JS Our reference ALS/ALS Standard/2017_3702528 Search date 4 December 2017

Keeping you up-to-date

Knowledge of features below the surface is essential in every development. The benefits of this not only include ensuring due diligence and avoiding risk, but also being able to ascertain the feasibility for any commercial or residential project. An asset location search provides information on the location of known Thames Water clean and/or wastewater assets, including details of pipe sizes, direction of flow and depth. Please note that information on cover and invert levels will only be provided where the data is available.

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4WW, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 2 of 33

Search address supplied: Rayners Lane, High Worple, Harrow, HA2 9SX, Dear Sir / Madam An Asset Location Search is recommended when undertaking a site development.It is essential to obtain information on the size and location of clean water and sewerage assets to safeguard against expensive damage and allow cost-effective service design. The following records were searched in compiling this report: - the map of public sewers & the map of waterworks. Thames Water Utilities Ltd (TWUL) holds all of these. This searchprovides maps showing the position, size of Thames Water assets close to the proposed development and also manhole cover and invert levels, where available. Please note that none of the charges made for this report relate to the provision of Ordnance Survey mapping information. The replies contained in this letter are given following inspection of the public service records available to this company. No responsibility can be accepted for any error or omission in the replies. You should be aware that the information contained on these plans is current only on the day that the plans are issued. The plans should only be used for the duration of the work that is being carried out at the present time. Under no circumstances should this data be copied or transmitted to parties other than those for whom the current work is being carried out. Thames Water do update these service plans on a regular basis and failure to observe the above conditions could lead to damage arising to new or diverted services at a later date. Contact Us If you have any further queries regarding this enquiry please feel free to contact a member of the team on 0845 070 9148, or use the address below: Thames Water Utilities Ltd Property Searches PO Box 3189 Slough SL1 4WW Email: searches@thameswater.co.uk Web: www.thameswater-propertysearches.co.uk

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4WW, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 3 of 33

Waste Water Services

Please provide a copy extract from the public sewer map. The following quartiles have been printed as they fall within Thames' sewerage area: TQ1287NE TQ1287NW TQ1287SE TQ1387SW TQ1387NW Enclosed is a map showing the approximate lines of our sewers. Our plans do not show sewer connections from individual properties or any sewers not owned by Thames Water unless specifically annotated otherwise. Records such as "private" pipework are in some cases available from the Building Control Department of the relevant Local Authority. Where the Local Authority does not hold such plans it might be advisable to consult the property deeds for the site or contact neighbouring landowners. This report relates only to sewerage apparatus of Thames Water Utilities Ltd, it does not disclose details of cables and or communications equipment that may be running through or around such apparatus. The sewer level information contained in this response represents all of the level data available in our existing records. Should you require any further Information, please refer to the relevant section within the 'Further Contacts' page found later in this document. For your guidance: • The Company is not generally responsible for rivers, watercourses, ponds, culverts

or highway drains. If any of these are shown on the copy extract they are shown for information only.

• Any private sewers or lateral drains which are indicated on the extract of the public sewer map as being subject to an agreement under Section 104 of the Water Industry Act 1991 are not an ‘as constructed’ record. It is recommended these details be checked with the developer.

Clean Water Services

Please provide a copy extract from the public water main map. Following examination of our statutory maps, Thames Water has been unable to find any plans of water mains within this area. If you require a connection to the public

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4WW, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 4 of 33

water supply system, please write to: New Connections / Diversions Thames Water Network Services Business Centre Brentford Middlesex TW8 0EE Tel: 0845 850 2777 Fax: 0207 713 3858 Email: developer.services@thameswater.co.uk The following quartiles have not been printed as they are out of Thames' water catchment area. For details of the assets requested please contact the water company indicated below: TQ1287NE Affinity Water TQ1287NW Affinity Water TQ1287SE Affinity Water TQ1387SW Affinity Water TQ1387NW Affinity Water Affinity Water Ltd Tamblin Way Hatfield AL10 9EZ Tel: 0845 7823333 For your guidance: • Assets other than vested water mains may be shown on the plan, for information

only. • If an extract of the public water main record is enclosed, this will show known public

water mains in the vicinity of the property. It should be possible to estimate the likely length and route of any private water supply pipe connecting the property to the public water network.

Payment for this Search A charge will be added to your suppliers account.

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4WW, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 5 of 33

Further contacts:

Waste Water queries

Should you require verification of the invert levels of public sewers, by site measurement, you will need to approach the relevant Thames Water Area Network Office for permission to lift the appropriate covers. This permission will usually involve you completing a TWOSA form. For further information please contact our Customer Centre on Tel: 0845 920 0800. Alternatively, a survey can be arranged, for a fee, through our Customer Centre on the above number. If you have any questions regarding sewer connections, budget estimates, diversions, building over issues or any other questions regarding operational issues please direct them to our service desk. Which can be contacted by writing to:

Developer Services (Waste Water) Thames Water Clearwater Court Vastern Road Reading RG1 8DB Tel: 0800 009 3921 Email: developer.services@thameswater.co.uk

Clean Water queries Should you require any advice concerning clean water operational issues or clean water connections, please contact:

Developer Services (Clean Water) Thames Water Clearwater Court Vastern Road Reading RG1 8DB

Tel: 0800 009 3921 Email: developer.services@thameswater.co.uk

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 6 of 33

Asset Location Search Sewer Map - ALS/ALS Standard/2017_3702528 TQ1287NE

The width of the displayed area is 500m and the centre of the map is located at OS coordinates 512750,187750 The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken. Based on the Ordnance Survey Map with the Sanction of the controller of H.M. Stationery Office, License no. 100019345 Crown Copyright Reserved.

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Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 7 of 33

NB. Levels quoted in metres Ordnance Newlyn Datum. The value -9999.00 indicates that no survey information is available

Manhole Reference Manhole Cover Level Manhole Invert Level 971D 99FH 9906 9907 99BF 99BG 99BI 99BH 991A 99FD 99FE 88CE 88CD 88BG 88BI 88BH 88BF 88AD 89AE 88AE 88CH 8805 88AF 9810 98AG 9804 9803 99AF 99AH 9801 9910 98AF 9806 9805 991B 991C 98FC 9908 98FA 98FB 98ED 9807 98DH 9808 98DJ 98DI 98CB 98CF 98CE 98CD 98CC 98BG 97MD 97EC 97LA 97EB 97ME 97MF 97MG 8801 87NR 87NS 87NT 97NQ 97NP 97OC 97OB 97OD 97OA 97BE 97BF 97BG 97BH 97BI 97BJ 97CA 97DA 97DB 97MI 981A 9707 971B 9701 971A 97MH 87AH 86BA 86BG 87LR 87LW 86AJ

n/a n/a 47.74 46.17 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.43 n/a 46.41 n/a 45.64 45.62 n/a n/a 46.47 46.47 n/a 45.64 45.64 n/a n/a n/a 46.18 n/a n/a n/a 45.6 n/a 45.59 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46 n/a 45.77 n/a n/a n/a n/a n/a n/a n/a n/a

n/a n/a 45.65 45.08 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.07 n/a 44.54 n/a 44.78 44.14 n/a n/a 45.2 44.76 n/a 44.6 43.83 n/a n/a n/a 44.56 n/a n/a n/a 44.85 n/a 44.15 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 44.57 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 43.67 n/a 43.02 n/a n/a n/a n/a n/a n/a n/a n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 8 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 86JA 86MA 86CD 87LY 96ME 97LZ 96MD 96BJ 9706 97LX 97MC 9705 9704 96SB 96SG 96SF 96SD 96CI 96CB 96CD 9603 79BD 79BE 8901 89BG 89BH 89FF 69BB 69BJ 69BD 69BF 69AF 69BC 69BE 79GC 79FG 79FH 79GD 7901 7902 7904 7903 79EA 79DF 79DH 79DJ 79DG 79DI 79CE 79CD 59BG 59BF 59BE 5903 5904 591B 591A 69CJ 69DC 69CI 69DA 69DD 69DB 6901 6902 99AE 99ED 89CD 89CC 89DC 79AJ 89EI 89EH 99DC 89EG 99DD 89CB 89CA 89DB 79BA 89EF 89EE 79BB 89BI 89BJ 89AB 79BC 8902 89FE 9904 9902 9905 7801

n/a n/a n/a n/a n/a n/a n/a n/a 45.32 n/a n/a 45.33 45.39 n/a n/a n/a n/a n/a n/a n/a 49.11 n/a n/a 48.52 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 48.8 48.81 48.15 48.17 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.68 47.67 n/a n/a n/a n/a n/a n/a n/a n/a 49.04 49.05 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.59 n/a 47.81 47.85 47.81 47.44

n/a n/a n/a n/a n/a n/a n/a n/a 44.1 n/a n/a 43.45 42.96 n/a n/a n/a n/a n/a n/a n/a 47.45 n/a n/a 46.83 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.67 46.49 46.38 46.15 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.66 45.87 n/a n/a n/a n/a n/a n/a n/a n/a 46.65 46.62 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.88 n/a 45.96 45.58 46.19 45.78

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 9 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 78CD 78FE 7802 78FF 68DG 68BD 78CC 6801 78FD 78FC 6802 68EI 68EJ 78DE 78DF 68CD 68CC 79FB 69DF 69DE 79CG 79CF 69BH 69BG 79FA 79EJ 78AI 78BA 78AJ 79AI 88FI 88FJ 88GA 89DA 88GH 88FH 88FG 8803 8804 8802 89CF 88EI 89CE 88EJ 88EC 88ED 88EF 88EH 88EB 88EE 88EG 88CG 88CF 77BJ 7701 7702 77DC 67BA 67AJ 77FA 77EF 77EE 67AH 78EC 78ED 78BE 78BD 68AE 68AD 78FI 78FJ 78CH 78CG 68BG 78FG 78FH 78CE 78CF 68BE 68BF 57BC 57BB 57AE 581A 581B 581F 581G 581D 581E 581C 5701 5901 57AF

n/a n/a 47.45 n/a n/a n/a n/a 48.01 n/a n/a 48.03 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.35 47.32 46.03 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.5 46.53 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.56 47.64 n/a

n/a n/a 45.6 n/a n/a n/a n/a 45.86 n/a n/a 45.72 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.73 45.47 44.33 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 44.79 44.54 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 42.9 45.97 n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 10 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 5801 5702 5802 57AG 56BD 56BA 56BC 56AJ 56AH 56BB 68DH 68DJ 68DI 671B 68EA 68EB 67CF 67CD 68CH 67CC 67CE 671A 67CG 6701 6702 6601 6602 67AI 66AI 66AH 66AE 66AG 66AF 7601 7602 76OG 66BE 66BD 66BC 76OF 66BA 66BB 66BH 77DG 77DF 67BD 77CE 77CC 77CD 77DE 77DD 67BC 67BB 77CB 77CA 76NB 76NO 771BTQ 76NA 76MU 76NC 76MX 76MV 76MY 76MS 76MW 76MT 76KI 76KJ 76KH 76MP 76MR 76MQ 76MN 761STQ 76AJ 87NH 87NK 86FH 87NG 87NF 86FG 86FF

47.31 46.62 47.32 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.25 47.26 46.35 46.22 n/a n/a n/a n/a n/a n/a 44.87 44.78 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

45.37 42.6 45.07 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 44.74 44.56 43.21 42.72 n/a n/a n/a n/a n/a n/a 43.53 42.68 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken.

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 11 of 33

Asset Location Search Sewer Map - ALS/ALS Standard/2017_3702528 TQ1287NW

The width of the displayed area is 500m and the centre of the map is located at OS coordinates 512250,187750 The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken. Based on the Ordnance Survey Map with the Sanction of the controller of H.M. Stationery Office, License no. 100019345 Crown Copyright Reserved.

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Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 12 of 33

NB. Levels quoted in metres Ordnance Newlyn Datum. The value -9999.00 indicates that no survey information is available

Manhole Reference Manhole Cover Level Manhole Invert Level 39CE 49AH 4901 4902 49AG 39BF 29CG 39BJ 39DC 39DB 39DG 3901 29CH 3902 29CI 39BG 3903 39BI 39CA 29DH 39CD 39CB 29DI 39CC 39BH 29DJ 29EA 2902A 29DF 39EF 39EG 29FH 38BC 28FE 28CE 28CF 38BB 2808 38BA 28CD 381C 381B 38AJ 381A 38AI 28CC 28CB 38AH 38DF 28CA 28JA 38DG 38DH 29AJ 39CI 39CJ 29BA 39DA 29CF 371D 27BA 27BB 27BC 371F 27BD 27BF 27AJ 271B 271A 2701 27BI 3801 381E 38CE 381D 2807 28EA 38CF 38CG 28FH 38CH 38CI 28FG 28DJ 281A 28FF 37AC 37AH 47DH 47CB

n/a n/a 46.47 46.44 n/a n/a n/a n/a n/a n/a n/a 44.36 n/a 44.43 n/a n/a 44.43 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.11 n/a n/a n/a n/a n/a n/a n/a n/a n/a 44.81 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 44.7 n/a n/a n/a n/a n/a 45.16 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

n/a n/a 44.28 44.08 n/a n/a n/a n/a n/a n/a n/a 43.05 n/a 42.86 n/a n/a 43.47 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 43.02 n/a n/a n/a n/a n/a n/a n/a n/a n/a 43.61 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 43.26 n/a n/a n/a n/a n/a 42.67 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 13 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 47DF 47CA 47DD 47DB 4802 4701A 4801 4703 47AD 4502B 461A 4502A 4505 4501B 4506 4501A 4601B 07CH 07DC 07CJ 07DA 07DB 0508 0504 0509 1509 17BB 17CH 1512 1521 1703 17CC 1519 1518 1702 1701B 17CD 17EH 17CJ 1506 17EE 17CG 0505 0501 0502 0506 0503 0507 07CG 07CI 2901A 29EE 39FB 39FF 29GA 29FJ 3904 29EF 1804 1805 1801A 2803 2804 2802 2801 28BE 28BD 291A 28HJ 28HI 28HH 28HG 2805 28HF 28HE 28BC 27BE 28JC 28FB 29CD 27BH 29CE 27BG 28FC 28FD 19HE 19ID 19IC 1901B 19HA 19BF 19BD 191B

n/a n/a n/a n/a 46.06 45.71 46.06 45.77 n/a 45.19 n/a 45.31 n/a 45.63 n/a 44.68 45.78 n/a n/a n/a n/a n/a 47.25 47.21 47.54 47.57 n/a n/a 47.02 47.02 47.56 n/a 46.87 47.24 47.34 47.35 n/a n/a n/a 47.1 n/a n/a 47.72 47.72 47.66 47.71 47.98 48.07 n/a n/a 46.93 n/a n/a n/a n/a n/a 46.66 n/a 47.4 47.55 47.21 47.5 47.45 47.5 47.73 n/a n/a n/a n/a n/a n/a n/a 46.54 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 48.19 n/a n/a n/a n/a

n/a n/a n/a n/a 43.61 42.16 43.35 42.42 n/a 42.24 n/a 42.59 n/a 42.24 n/a 42.71 42.38 n/a n/a n/a n/a n/a 42.46 42.48 45.85 45.48 n/a n/a 42.4 42.15 43.07 n/a 44.48 42.05 45.45 45.61 n/a n/a n/a 45.56 n/a n/a 42.6 42.75 45.59 45.97 45.96 46.45 n/a n/a 45.28 n/a n/a n/a n/a n/a 43.11 n/a n/a 43.62 40.83 n/a 42.34 42.58 42.76 n/a n/a n/a n/a n/a n/a n/a 42.96 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.34 n/a n/a n/a n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 14 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 19BE 19BC 191A 29AC 29AB 29AD 2905 2902B 2901B 2903 29GB 29GF 29FE 29FF 29FG 29FI 17ED 17CE 1507 17CF 17CI 1601A 1501B 17EC 1603 1706 1502B 1601B 1705 1701A 2501A 27AI 37BH 371C 37BG 371E 371B 371A 3701 09AH 091C 09BB 09AI 09EB 09BA 09AJ 09BF 09BE 19IJ 19II 19IB 19IA 19IH 19GI 19IG 19HJ 19GH 19HI 19HH 19IF 19HG 19IE 19HF 18CI 18CJ 18CH 08BC 08BB 08BA 08AJ 18BF 08BJ 18DE 1806 1807 19CA 19ED 19BJ 19EC 19EA 19EB 19DJ 19DI 19DG 19DH 09DE 19BG 09DD 19BH 09DC 08EB 07BE 0702

n/a n/a n/a n/a n/a n/a 48.05 47.8 48.09 48.11 n/a n/a n/a n/a n/a n/a n/a n/a 47.96 n/a n/a 49.32 48.43 n/a 51.58 51.99 48.55 48.76 49.67 45.63 47.26 n/a n/a n/a n/a n/a n/a n/a 44.21 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 48.2 48.2 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.89

n/a n/a n/a n/a n/a n/a 43.96 41.12 41.24 42.84 n/a n/a n/a n/a n/a n/a n/a n/a 46.64 n/a n/a 48 40.58 n/a 50.38 50.45 42.09 40.58 48.16 40.7 42.14 n/a n/a n/a n/a n/a n/a n/a 43.29 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.25 44.24 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 43.32

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 15 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 0701 07BB 08EA 08EC 07AJ 07BH 07BC 071A 17AE 1704 18EC 18EH 17EF 18DA 17EG 18EI 18DB 18FA 18EJ 18DC 18DD 18BD 18BE 1801B 1802 0903 0902 09CJ 09CI 09GG 09CG 09GF 09CH 09DB 09GE 09GD 09GC 0901 09BG 08DE 08CG 08CF 08DF 07AC 07AB 09EJ 0906 0905 08CE 08CD 08CC 08CB 08ED 07BD 08CA 07DG 091B 09EF 09EG 09EH 09HA 09GJ 09GI 09GI

47.88 n/a n/a n/a n/a n/a n/a n/a n/a 47.58 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.5 47.72 47.46 47.51 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.8 n/a n/a n/a n/a n/a n/a n/a n/a 47.15 47.15 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

44.13 n/a n/a n/a n/a n/a n/a n/a n/a 43.85 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 42.57 44.9 45.86 45.01 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.41 n/a n/a n/a n/a n/a n/a n/a n/a 45.61 44.71 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken.

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 16 of 33

Asset Location Search Sewer Map - ALS/ALS Standard/2017_3702528 TQ1287SE

The width of the displayed area is 500m and the centre of the map is located at OS coordinates 512750,187250 The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken. Based on the Ordnance Survey Map with the Sanction of the controller of H.M. Stationery Office, License no. 100019345 Crown Copyright Reserved.

13701270 SMARTS BROOK30

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Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 17 of 33

NB. Levels quoted in metres Ordnance Newlyn Datum. The value -9999.00 indicates that no survey information is available

Manhole Reference Manhole Cover Level Manhole Invert Level 64BH 64BJ 641B 64BC 64BD 64BE 6403 6404 64EB 64EA 64DB 64DA 52EC 5301 53GG 53GF 53EF 53HI 53HA 53GE 53GD 53GC 53GB 53GJ 53HH 53GA 63BC 63BB 62DC 62DB 63EF 63EE 63ED 63CH 63EC 63AH 63AG 63AF 62AB 63FE 53EH 53EE 63FF 531B 63FG 53IG 531A 54CH 64GB 54CG 64GC 54CF 64GD 64GF 54CE 64GE 64AJ 54CD 6401 6402 54BH 64EF 54CC 64BA 64BB 54CB 501K 501L 501I 501N 5001 5002 501E 501A 501B 501C 501D 501G 601C 601E 6001 6002 601D 601B 601A 701I 701J 7001 7002 701F

n/a n/a n/a n/a n/a n/a 45.66 45.59 n/a n/a n/a n/a n/a 47.78 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.27 47.3 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.05 46.06 n/a n/a n/a n/a n/a n/a n/a n/a 46.95 47.12 n/a n/a n/a n/a n/a 47.62 47.75 n/a

n/a n/a n/a n/a n/a n/a 44.22 43.98 n/a n/a n/a n/a n/a 45.63 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.51 45.18 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.28 43.9 n/a n/a n/a n/a n/a n/a n/a n/a 46.06 43.66 n/a n/a n/a n/a n/a 44.78 46.69 n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 18 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 701H 53CB 53BE 5302 53BF 52CH 53DD 53BG 53DH 52CI 52CJ 53BI 53DC 53DB 53DF 53DI 5303 5304 53DA 53CJ 53DG 5305 53CI 53GI 53HD 52EF 53GH 53EG 501M 501J 5102 6103 6101 7101 5201 6201 6203 7201 6202 721A 5203 62DG 52EG 62CI 52CE 52DB 52CF 52DJ 52ED 52EA 62CJ 62DA 52CG 52EE 52EB 52DA 52DC 5204 53AB 53BA 53BB 53BC 53BD 5405 54CA 5401 54AF 54AG 54AH 64BI 5101 7402 7401 84CG 84CF 84CE 84CD 84CC 84CB 84EA 94BA 94AJ 64GH 64EH 64EG 64EE 64EI 64ED 64GG 64EC 63FJ 63FI 74EF

n/a n/a n/a 47.37 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.33 46.33 n/a n/a n/a 46.29 n/a n/a n/a n/a n/a n/a n/a n/a 48.27 49.56 48.74 49.98 48.7 50.13 49.51 52.39 51.39 n/a 48.84 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.68 n/a n/a n/a n/a n/a 45.05 n/a 46.33 n/a n/a n/a n/a 46.96 48.41 48.46 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

n/a n/a n/a 45.79 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 43.33 43.5 n/a n/a n/a 44.61 n/a n/a n/a n/a n/a n/a n/a n/a 46.44 47.58 46.95 46.68 45.55 47.53 47.27 49.44 49.59 n/a 46.73 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 43.76 n/a n/a n/a n/a n/a 43.16 n/a 43.56 n/a n/a n/a n/a 45.2 45.56 45.27 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 19 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 74EE 73BG 73BH 74DF 741B 74AI 74DG 74AJ 74DH 74DI 7303 74BA 7304 74DJ 74BB 74EA 74BC 9410 9405 E 9406 9411 9407 9412 9409 9408 9308 9309 9312 93FG 93DA 93DB 93FH 93DC 93DD 93FI 941B 94CA 94CB 94CG 94DJ 94EE 94EF 941A 94FA 9401 9404 94EH 94FB 94BH 94EJ 94BD 94DI 94EA 94BC 94BB 94EB 83EH 83DI 83GC 83GE 83GF 83GG 83GH 83CA 83GD 83FE 831A 83FF 83CD 83HI 8303 83HG 8304 n/a 84FE 94EG 84EG 94FC 94FD 84EH 8402 84DI 84ED 84DJ 74BD 73CC 74EB 74BE 73CD 7306 741A 7305

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 51.13 n/a 51.11 n/a n/a n/a n/a 52.43 52.15 n/a 52.14 52.97 52.56 52.69 55.49 54.23 52.97 52.97 53.23 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 51.27 51.19 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 51.2 n/a 51.16 n/a n/a n/a n/a n/a n/a n/a 49.55 n/a n/a n/a n/a n/a n/a n/a n/a 50.79 n/a 50.86

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 48.99 n/a 49.25 n/a n/a n/a n/a n/a 48.47 n/a 48.07 51.97 n/a 48.76 54.75 49.8 49.91 49.55 49.68 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 48.73 49.03 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 49.65 n/a 49.79 n/a n/a n/a n/a n/a n/a n/a 46.07 n/a n/a n/a n/a n/a n/a n/a n/a 48.99 n/a 48.74

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 20 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 73CE 74BJ 73CF 83AB 84AB 83AE 83AD 83AC 84BA 83DF 83DE 831B 84AJ 83DG 83DH 83CC 83CB 8401 84AH 93CC 93CD 93FD 9305 9304 93CE 93CF 93FE 9313 93CG 93CH 9314 93DE 9301 93DF 93FF 9306 9302 9307 93CI 93CJ 721B 72BC 72BB 72BA 621A 6301 6302 731B 731C 63BD 63DF 731A 63DG 63DH 63CI 63DI 631A 6303 6304 63DJ 73BJ 73BI 73CA 63EA 73BE 73CB 73BF 63EB 63FH 7301 7202 7302 73CG 72AJ 72AI 72AH 821A 8201 82AD 83AF 82AE 82CI 821B 82CF

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 49.53 n/a n/a n/a n/a 53.99 53.92 n/a n/a n/a n/a n/a n/a n/a n/a 51.8 n/a n/a 53.26 51.7 53.31 n/a n/a n/a n/a n/a n/a n/a 50.06 50.03 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 49.24 49.27 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 51.78 53.44 51.77 n/a n/a n/a n/a n/a 54.58 n/a n/a n/a n/a n/a n/a

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.36 n/a n/a n/a n/a 51.6 51.47 n/a n/a n/a n/a n/a n/a n/a n/a 50.32 n/a n/a 50.65 49.96 49.81 n/a n/a n/a n/a n/a n/a n/a 47.98 47.66 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.01 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 48.63 51.59 48.37 n/a n/a n/a n/a n/a 51.14 n/a n/a n/a n/a n/a n/a

The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken.

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 21 of 33

Asset Location Search Sewer Map - ALS/ALS Standard/2017_3702528 TQ1387SW

The width of the displayed area is 500m and the centre of the map is located at OS coordinates 513250,187250 The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken. Based on the Ordnance Survey Map with the Sanction of the controller of H.M. Stationery Office, License no. 100019345 Crown Copyright Reserved.

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Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 22 of 33

NB. Levels quoted in metres Ordnance Newlyn Datum. The value -9999.00 indicates that no survey information is available

Manhole Reference Manhole Cover Level Manhole Invert Level 4305 4306 4307 4308 4303 4405 4304 4402 23AC 13BC 23DI 33BI 23FF 23DJ 23EC 33BB 23FG 33BC 13BB 23EA 33BD 23ED 13BA 33BE 2303 2304 23GE 13AJ 23GH 23GF 23GG 23CI 23BG 231A 23CB 1202 12CI 12CJ 12DD 12DC 12DF 13BD 22FF 22FE 2206 2301 2205 22DG 22DH 22GB 22GC 23DH 22GD 22EA 22DJ 22DI 23FE 22DF 2203 22DE 23FD 22EI 4202 3202 4201 4206 3209 4207 4204 3203 4208 3204 32CI 32CH 4205 4209 2201 23FC 221A 22EJ 32EI 32EH 32DF 32EE 32EG 32EF 33AB 3302 32DG 32FA

53.91 52.23 52.67 51.44 51.44 51.26 51.38 51.37 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 52.61 52.52 n/a n/a n/a n/a n/a n/a n/a n/a n/a 54.91 n/a n/a n/a n/a n/a n/a n/a n/a 54.93 54.2 54.88 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 54.72 n/a n/a n/a 54.36 54.6 54.3 54.44 54.73 54.46 54.47 54.75 54.47 54.77 n/a n/a 53.91 53.9 54.76 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 53.52 n/a n/a

51.3 50.4 51.21 49.9 50.7 50.49 50.68 49.62 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 51.39 51.11 n/a n/a n/a n/a n/a n/a n/a n/a n/a 52.48 n/a n/a n/a n/a n/a n/a n/a n/a 52.89 53.21 52.8 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 52.99 n/a n/a n/a 51.91 52.17 51.54 51.52 53.07 52.12 51.77 50.08 52.23 49.85 n/a n/a 52.13 52.6 52.66 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 50.71 n/a n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 23 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 3301 3207 3205 3208 3206 33CD 33BJ 32CJ 33CA 32DA 32FG 32FF 33CB 32BH 31DD 31DE 3001 3105 3101 3107 3005 3104 3109 3003 3002 3009 3008 3110 3108 4109 4203 4108 4104 4107 4105 4106 4003 421A 4007 4002 21EG 201E 2003 21EH 2004 21EI 21EJ 31CE 31CF 311A 32BA 32BB 31CG 31CH 32BC 31CI 32BD 31CJ 32BE 3102 31DA 32BF 3006 31DB 31DC 32BG 3007 4005 4004 4103 411B 4101 4102 4110 411A 421B 4001 201C 201B 201A 201D 04AJ 04BA 04BE 04BF 03BB 04CA 03BD 04BG 04BH 04AI 04BI 04AG

53.5 54.16 54.55 54.2 54.54 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.97 50.06 53.08 51.08 48 50.4 51.29 48.02 n/a n/a n/a 51.2 51.29 53.19 54.1 52.64 51.76 53.26 51.86 52.71 n/a 54.35 47.47 n/a n/a n/a n/a n/a 48.26 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 51.17 n/a n/a n/a n/a n/a n/a n/a 48.19 47.22 51.54 52.83 53.37 53.39 53.65 53.83 54 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

50.47 50.55 50.28 50.35 50.03 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.99 47.1 49.85 48.33 45.77 n/a 49.06 46.03 n/a n/a n/a 49.19 49.27 51.01 51.25 50.84 49.2 51.61 49.66 51.21 n/a 51.16 45.57 n/a n/a n/a n/a n/a 45.27 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 50.43 n/a n/a n/a n/a n/a n/a n/a 45.41 44.65 49.14 51.06 50.8 51.37 50.94 50.98 51.61 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 24 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 04BJ 0402 0401 23CH 23CG 23CF 23CE 23BH 23CD 23CC 03AD 03AE 03AF 0303 0302 0304 01CI 0201 0202 02CB 02BH 02CC 02BG 02BF 02BE 02BJ 0203 02BD 02CE 02CF 02CG 03AB 03AC 11ED 101D 11EE 11EF 111A 111B 11EG 11EH 11EI 11EJ 2002 21DF 2101 2001 21DG 21DH 21DI 21DJ 2103 21EA 21EB 21EC 2005 21ED 21EE 21EF 2102 0001 1004 0002 0005 1003 1002 00CJ 101C 00CI 001B 101E 11EC 11EA 11DJ 11EB 0102 1101 1102 n/a 0206 0205 0204 1204 1203 1205 1206 1207 021B 1201 0003 0004 00DA 00CF

n/a 52.15 52.11 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 52.81 52.9 52.81 n/a 55.59 55.38 n/a n/a n/a n/a n/a n/a n/a 55.2 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 48.11 n/a 51.09 n/a n/a n/a n/a n/a 50.97 n/a n/a n/a 48.37 n/a n/a n/a 51.03 48.77 n/a 48.72 48.2 n/a 47.94 n/a n/a n/a n/a n/a n/a n/a n/a n/a 52.39 51.64 51.63 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 55.24 48.82 48.94 n/a n/a

n/a 51.07 50.59 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 49.95 50.98 50.84 n/a 53.81 51.91 n/a n/a n/a n/a n/a n/a n/a 53.24 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 44.85 n/a 49.08 n/a n/a n/a n/a n/a 49.95 n/a n/a n/a 46.02 n/a n/a n/a 48.94 47.94 n/a 46.27 46.49 n/a 46.87 n/a n/a n/a n/a n/a n/a n/a n/a n/a 49.02 49.71 49.19 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 53.75 47.66 45.92 n/a n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 25 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 00CE 00CD 00CC 00CB 01EB 01EA 01EC 01DJ 0101 01DB 01DE 01DA 01CJ 00DG 00DJ 00DH 00DI 101B 101A 00EB

n/a n/a n/a n/a n/a n/a n/a n/a 52.5 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

n/a n/a n/a n/a n/a n/a n/a n/a 48.6 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken.

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 26 of 33

Asset Location Search Sewer Map - ALS/ALS Standard/2017_3702528 TQ1387NW

The width of the displayed area is 500m and the centre of the map is located at OS coordinates 513250,187750 The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken. Based on the Ordnance Survey Map with the Sanction of the controller of H.M. Stationery Office, License no. 100019345 Crown Copyright Reserved.

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Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 27 of 33

NB. Levels quoted in metres Ordnance Newlyn Datum. The value -9999.00 indicates that no survey information is available

Manhole Reference Manhole Cover Level Manhole Invert Level 49EH 49AG 49AH 49AI 49FD 49FE 49CH 49CG 49FF 49DC 49FG 49CF 49CE 4902 49FH 4903 49CD 49FA 49FB 4901 49DF 49BA 49EJ 49BE 49EI 49AJ 39BA 38AJ 39BC 3901 39EF 39AE 3802 38BC 39GF 39EJ 39GC 3803 39EC 39EB 39EA 39FF 39GA 39GB 39FI 39FJ 39FH 39FG 38CE 38CD 38DB 38DC 38DD 48EC 48BI 48EB 48BG 48BH 48EA 48BF 48CJ 48BE 4801 48DA 48BD 48DB 48BC 4802 49DB 49GG 49GA 49DA 49GE 49FC 49CJ 49CI 49GD 37GH 2704 27EF 3705 38IE 28BG 38EH 3801 38ID 38HC 38IC 38EI 38HJ

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.91 n/a 47.92 n/a n/a n/a 47.21 n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.85 n/a n/a 47.13 n/a n/a n/a n/a 47.14 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.45 n/a n/a n/a n/a 47.37 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.69 n/a 48.21 n/a n/a n/a 48.19 n/a n/a n/a n/a n/a

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.07 n/a 45.54 n/a n/a n/a 45.4 n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.39 n/a n/a 45.8 n/a n/a n/a n/a 45.36 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.77 n/a n/a n/a n/a 46.08 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 44.69 n/a 46.16 n/a n/a n/a 45.81 n/a n/a n/a n/a n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 28 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 28AE 28AF 28BF 28BE 38EJ 28BD 38FA 38FB 38DH 38DG 38DF 38AH 38AI 38DE 471D 47EG 47EH 47DA 47DB 471E 4705 47EI 47EJ 4704 471G 471A 4703 471F 47BE 4701 4706 48EI 48EH 48CD 48EG 48CC 48EF 48CB 48EE 48EJ 48CA 48ED 48BJ 46GG 46FA 46AG 46EJ 46AF 46GF 46GE 46BI 46EI 46EH 46BJ 46GD 46CA 46EG 46CB 47CF 47EB 47EC 47CG 47ED 47CH 47EE 47CI 47CJ 47EF 471C 471B 36CB 3703 36AH 36AG 37ED 37AB 3603 3604 37EC 37AH 37BD 37AG 37EB 36DB 37BE 36DE 3702 3701 36DG 37CF 37CD 47AH 47AG

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 48.86 n/a n/a 48.91 n/a n/a 49.07 n/a n/a 49.09 48.87 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.94 n/a n/a n/a n/a 47.78 47.77 n/a n/a n/a n/a n/a n/a n/a n/a 48.7 48.67 n/a n/a n/a n/a n/a

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.2 n/a n/a 47.17 n/a n/a 46.88 n/a n/a 46.46 46.45 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.1 n/a n/a n/a n/a 46.08 46.27 n/a n/a n/a n/a n/a n/a n/a n/a 46.63 46.32 n/a n/a n/a n/a n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 29 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 47AF 47AE 47AD 46CC 09DE 29AI 29AH 09DD 09AF 09AG 29CD 29CE 29CF 20BD 3903 39EE 39ED 09DB 0901 09CH 0902 09BC 09BI 09BH 09BG 09BF 091F 091G 09BE 091D 091A 09BD 091B 091E 091C 091H 28CA 2801 29EA 29ED 29EE 29DJ 29DI 29DH 29DG 29DF 29DE 39CD 39CE 39CH 39CF 39CI 39AD 38GI 38GH 39DA 3902 39CG 38BB 39BB 38BA 1802 18AC 19BG 1801 19BF 19BD 19BC 19BB 19BA 19BE 19AJ 19AI 2802 2803 29BA 2804 29AJ 28CE 28CH 2901 28CF 28CB 28CG 28CC 29EI 28CD 29BB 07CB 07LS 07CD 07CC 07LZ

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.08 n/a n/a n/a 46.2 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 46.24 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.03 n/a n/a n/a n/a 46.47 n/a n/a 46.37 n/a n/a n/a n/a n/a n/a n/a n/a 46.21 46.46 n/a 46.47 n/a n/a n/a 46.27 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 44.71 n/a n/a n/a 44.71 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 44.54 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 45.88 n/a n/a n/a n/a 43.19 n/a n/a 44.37 n/a n/a n/a n/a n/a n/a n/a n/a 44.46 44.49 n/a 43.92 n/a n/a n/a 44.83 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 30 of 33

Manhole Reference Manhole Cover Level Manhole Invert Level 07LT 07LU 08BH 08DE 08DF 0801 08DG 0802 07WS 0707 0704 0702 08DA 0703 08DB 0706 08DC 08BB 08BC 08CJ 0705 08BE 08BD 08BG 08BF 081A 18BD 1702 18BC 18BB 1701 18BA 18AJ 18AI 1704 07FF 07FG 07EG 07EF 07EE 07ED 07EC 07EB 0701 97MB 07MC 07AC 07BF 07LX 07BH 07LW 07LV 07BI 07BJ 07CA 26AI 26BA 36CD 26AJ 27CJ 27CI 2702 2701 27BA 27BB 27BC 27AJ 27BD 1706 27BE 27BF 1705 27AI 37EE 27EC 27ED 27FH 27EE 27FG 3704 27FF 2703 07FC 07FB

n/a n/a n/a n/a n/a 46 n/a 46.04 n/a 46.16 46.18 46.24 n/a 46.22 n/a 46.36 n/a n/a n/a n/a 46.4 n/a n/a n/a n/a n/a n/a 46.72 n/a n/a 47.59 n/a n/a n/a 46.75 n/a n/a n/a n/a n/a n/a n/a n/a 45.69 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 47.22 47.22 n/a n/a n/a n/a n/a 47.14 n/a n/a 47.14 n/a n/a n/a n/a n/a n/a n/a 47.91 n/a 46.7 n/a n/a

n/a n/a n/a n/a n/a 44.19 n/a 44.62 n/a 44.32 43.68 44.16 n/a 43.28 n/a 44.18 n/a n/a n/a n/a 43.88 n/a n/a n/a n/a n/a n/a 44.22 n/a n/a 44.89 n/a n/a n/a 43.28 n/a n/a n/a n/a n/a n/a n/a n/a 44.04 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 44.47 45.12 n/a n/a n/a n/a n/a 45.11 n/a n/a 45.27 n/a n/a n/a n/a n/a n/a n/a n/a n/a 44.12 n/a n/a

The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken.

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 31 of 33

ALS Sewer Map Key

Foul: A sewer designed to convey waste water from domestic andindustrial sources to a treatment works.

Surface Water: A sewer designed to convey surface water (e.g. rainwater from roofs, yards and car parks) to rivers or watercourses.

Combined: A sewer designed to convey both waste water and surfacewater from domestic and industrial sources to a treatment works.

Trunk Surface Water

Storm Relief

Vent Pipe

Proposed Thames SurfaceWater Sewer

Gallery

Surface Water RisingMain

Sludge Rising Main

Vacuum

Public Sewer Types (Operated & Maintained by Thames Water)

Notes:1) All levels associated with the plans are to Ordnance Datum Newlyn.2) All measurements on the plans are metric.3) Arrows (on gravity fed sewers) or flecks (on rising mains) indicate direction of

flow.4) Most private pipes are not shown on our plans, as in the past, this information has

not been recorded.5) ‘na’ or ‘0’ on a manhole level indicates that data is unavailable.

Trunk Foul

Trunk Combined

Bio-solids (Sludge)

Proposed Thames WaterFoul Sewer

Foul Rising Main

Combined Rising Main

Proposed Thames WaterRising Main

Sewer FittingsA feature in a sewer that does not affect the flow in the pipe. Example: a ventis a fitting as the function of a vent is to release excess gas.

Operational ControlsA feature in a sewer that changes or diverts the flow in the sewer. Example:A hydrobrake limits the flow passing downstream.

Air Valve

Dam Chase

Fitting

Meter

Vent Column

Control Valve

Drop Pipe

Ancillary

Weir

End ItemsEnd symbols appear at the start or end of a sewer pipe. Examples: anUndefined End at the start of a sewer indicates that Thames Water has noknowledge of the position of the sewer upstream of that symbol, Outfall on asurface water sewer indicates that the pipe discharges into a stream or river.

Outfall

Undefined End

Inlet

Other SymbolsSymbols used on maps which do not fall under other general categories

Summit

Public/Private Pumping Station/

Invert Level

Change of characteristic indicator (C.O.C.I.)

Other Sewer Types (Not Operated or Maintained by Thames Water)

AreasLines denoting areas of underground surveys, etc.

Agreement

Chamber

Operational Site

Conduit Bridge

Foul Sewer

Combined Sewer

Culverted Watercourse

Surface Water Sewer

Gulley

Proposed

Abandoned Sewer

Tunnel

6) The text appearing alongside a sewer line indicates the internal diameter ofthe pipe in milimetres. Text next to a manhole indicates the manholereference number and should not be taken as a measurement. If you areunsure about any text or symbology present on the plan, please contact amember of Property Insight on 0845 070 9148.

P P

M

W

Terms and Conditions

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T 0845 070 9148 E searches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 32 of 33

All sales are made in accordance with Thames Water Utilities Limited (TWUL) standard terms and conditions unless previously agreed in writing.

1. All goods remain in the property of Thames Water Utilities Ltd until full payment is received. 2. Provision of service will be in accordance with all legal requirements and published TWUL policies. 3. All invoices are strictly due for payment 14 days from due date of the invoice. Any other terms must

be accepted/agreed in writing prior to provision of goods or service, or will be held to be invalid. 4. Thames Water does not accept post-dated cheques-any cheques received will be processed for

payment on date of receipt. 5. In case of dispute TWUL`s terms and conditions shall apply. 6. Penalty interest may be invoked by TWUL in the event of unjustifiable payment delay. Interest

charges will be in line with UK Statute Law ‘The Late Payment of Commercial Debts (Interest) Act 1998’.

7. Interest will be charged in line with current Court Interest Charges, if legal action is taken. 8. A charge may be made at the discretion of the company for increased administration costs.

A copy of Thames Water’s standard terms and conditions are available from the Commercial Billing Team (cashoperations@thameswater.co.uk). We publish several Codes of Practice including a guaranteed standards scheme. You can obtain copies of these leaflets by calling us on 0800 316 9800 If you are unhappy with our service you can speak to your original goods or customer service provider. If you are not satisfied with the response, your complaint will be reviewed by the Customer Services Director. You can write to her at: Thames Water Utilities Ltd. PO Box 492, Swindon, SN38 8TU. If the Goods or Services covered by this invoice falls under the regulation of the 1991 Water Industry Act, and you remain dissatisfied you can refer your complaint to Consumer Council for Water on 0121 345 1000 or write to them at Consumer Council for Water, 1st Floor, Victoria Square House, Victoria Square, Birmingham, B2 4AJ.

Ways to pay your bill

Credit Card Call 0845 070 9148 quoting your invoice number starting CBA or ADS / OSS

BACS Payment Account number 90478703 Sort code 60-00-01 A remittance advice must be sent to: Thames Water Utilities Ltd., PO Box 3189, Slough SL1 4WW. or email ps.billing@thameswater.co.uk

Telephone Banking By calling your bank and quoting: Account number 90478703 Sort code 60-00-01 and your invoice number

Cheque Made payable to ‘Thames Water Utilities Ltd’ Write your Thames Water account number on the back. Send to: Thames Water Utilities Ltd., PO Box 3189, Slough SL1 4WW or by DX to 151280 Slough 13

Thames Water Utilities Ltd Registered in England & Wales No. 2366661 Registered Office Clearwater Court, Vastern Rd, Reading, Berks, RG1 8DB.

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13 T0845 070 9148Esearches@thameswater.co.uk I www.thameswater-propertysearches.co.uk

Page 33 of 33

Search Code IMPORTANT CONSUMER PROTECTION INFORMATION This search has been produced by Thames Water Property Searches, Clearwater Court, Vastern Road, Reading RG1 8DB, which is registered with the Property Codes Compliance Board (PCCB) as a subscriber to the Search Code. The PCCB independently monitors how registered search firms maintain compliance with the Code. The Search Code:

• provides protection for homebuyers, sellers, estate agents, conveyancers and mortgage lenders who rely on the information included in property search reports undertaken by subscribers on residential and commercial property within the United Kingdom

• sets out minimum standards which firms compiling and selling search reports have to meet • promotes the best practise and quality standards within the industry for the benefit of consumers and

property professionals • enables consumers and property professionals to have confidence in firms which subscribe to the

code, their products and services. By giving you this information, the search firm is confirming that they keep to the principles of the Code. This provides important protection for you. The Code’s core principles Firms which subscribe to the Search Code will:

• display the Search Code logo prominently on their search reports • act with integrity and carry out work with due skill, care and diligence • at all times maintain adequate and appropriate insurance to protect consumers • conduct business in an honest, fair and professional manner • handle complaints speedily and fairly • ensure that products and services comply with industry registration rules and standards and relevant

laws • monitor their compliance with the Code

Complaints If you have a query or complaint about your search, you should raise it directly with the search firm, and if appropriate ask for any complaint to be considered under their formal internal complaints procedure. If you remain dissatisfied with the firm’s final response, after your complaint has been formally considered, or if the firm has exceeded the response timescales, you may refer your complaint for consideration under The Property Ombudsman scheme (TPOs). The Ombudsman can award compensation of up to £5,000 to you if he finds that you have suffered actual loss as a result of your search provider failing to keep to the Code. Please note that all queries or complaints regarding your search should be directed to your search provider in the first instance, not to TPOs or to the PCCB. TPOs Contact Details The Property Ombudsman scheme Milford House 43-55 Milford Street Salisbury Wiltshire SP1 2BP Tel: 01722 333306 Fax: 01722 332296 Email: admin@tpos.co.uk You can get more information about the PCCB from www.propertycodes.org.uk PLEASE ASK YOUR SEARCH PROVIDER IF YOU WOULD LIKE A COPY OF THE SEARCH CODE

Rayners Lane

28202 / Flood Risk Assessment

Revision 1

Appendix C CCTV Drainage Survey

Tower Surveys CCTV Ltd

Rayners Lane Station Car Park CCTV Condition Report Project Ref: TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02 Dominic White – Tower Surveys CCTV Ltd 04/11/2019

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Project-informationProject name: Contract number: Contact: Date:

Rayners Lane Station Car Park TS-349 Dominic White 04/10/2019

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 1

ClientContact:Position:RoadTownCountyTelephone:Fax:Mobile:E-Mail:

Price & MyersSabrina RamCivil Engineer37 Alfred PlaceLondon, WC1E 7DPGreater London020 7631 5128

sram@pricemyers.com

SiteContact:Position:RoadTownCountyTelephone:Fax:Mobile:E-Mail:

Rayners Lane Station Car ParkSabrina RamCivil engineer5 High WorpleHarrow, HA2 9SJLondon Borough of Harrow020 7631 5128

sram@pricemyers.com

ContractorContact:Position:RoadTownCountyTelephone:Fax:Mobile:E-Mail:

Tower Surveys CCTV LtdDominic WhiteDirector1 Kendale GroveNottinghamNottinghamshire07917 435 897

07917 435 897dominic.white@towersurveyscctv.co.uk

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Defect Grade DescriptionProject name: Contract number: Contact: Date:

Rayners Lane Station Car Park TS-349 Dominic White 04/10/2019

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 2

1: Brick: No Structural DefectsPipe: No Structural Defects

Acceptable Structural Condition

2: Brick: Minor cracking, Surface mortar loss, Spalling slight, wear slightPipe: Circumfrential crack, Moderate joint defects, Spalling slight, Wear slight

Minor collapse risk in short term but potential for further deterioration

3: Brick: Total mortorloss without other defects, single brick displaced, Deformation up to 5%,Spalling medium, Wear mediumPipe: Fractures with deformation up tp 5%, Longitudinal cracking or mulitlpe cracking, Minorloss of level, More severe joint defects, Spalling medium, Wear medium

! Collapse unlikely in near future but future deterioration likely !

4: Brick: Total mortorloss with deformation greater than 10%, Deformation up to 10% andfractured, Displaced/hanging brickwork, Small number of missing bricksPipe: Broken, Deformation up to 10% and broken,, Fractured with deformation 5 - 10%,Multiple fractures, Serious loss of level, spalling large, wear large

!! Collapse likely in foreseeable future !!

5: Brick: Already Collapsed, Missing invert, Deformation over 10% and fractured,Displaced/hanging brickwork and deformation over 10%, Extensive missing bricksPipe: Already collapsed, Deformation over 10% and broken, Extensive areas of fabricmissing, Fractured with deformation over 10%

!!! Collapsed or collapse imminent !!!

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 1 MH1 X X

LG18 VTJ Ibos Rover Yes

5 High Worple

Rayners Lane Station

Car park

MH1 X

Outfall?

18.9 m

Asset condition

Surface water

Circular dia 825 mmConcrete Pipe length:

1:150 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 3

0.00 MH 00:00:00 0Manhole Remark: MH1 X

0.00 WL 00:00:00 0Water level, 5 % height/diameter, Remark: Water standing in sewer

0.00 GP 00:00:00 3_3a 0General Condition photograph

6.90 WL 00:00:00 4_4a 0Water level, 20 % height/diameter, Remark: Water standing in sewer

10.60 WL 00:00:00 5_5a 0Water level, 25 % height/diameter

14.40 WL 00:00:00 7_6a 0Water level, 35 % height/diameter, Remark: Waters tanding in sewer

15.10 CN 00:00:00 1_7a 0Connection, at 01 o´clock, dia 150 mm

18.90 GO 00:00:00 0General Observation, Unable to clear standing water via high pressurewater jetting/waste disposal

18.90 WL 00:00:00 1_9a 0Water level, 40 % height/diameter, Remark: Water standing in sewer

18.90 GO 00:00:00 0General Observation, Assumed that water is standing due toovergrown/unmaintained outfall at point of discharge downstream

18.90 GO 00:00:00 0General Observation, Assumed this sewer connects to watercourse withinneighboring prioperty downstream of this point

18.90 GO 00:00:00 0General Observation, Camera zoomed in on left deviation downstream ofthis point

18.90 GO 00:00:00 0General Observation, Outfall downstream of this point needs to be clearedto enable further CCTV inspection downstream of this point

18.90 SA 00:00:00 0Survey abandoned, Unable to drive robotic crawler camera unit any further,possible debris below water level

MH1 X

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 1 MH1 X X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 4

Photo: 3_3a, 00:00:000m, General Condition photograph

Photo: 4_4a, 00:00:006.9m, Water level, 20 % height/diameter, Remark: Water standing in sewer

Photo: 5_5a, 00:00:0010.6m, Water level, 25 % height/diameter

Photo: 7_6a, 00:00:0014.4m, Water level, 35 % height/diameter, Remark: Waters tanding in sewer

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 1 MH1 X X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 5

Photo: 1_7a, 00:00:0015.1m, Connection, at 01 o´clock, dia 150 mm

Photo: 1_9a, 00:00:0018.9m, Water level, 40 % height/diameter, Remark: Water standing in sewer

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 2 Gully X

LG18 VTJ MiniCam SoloPro No

5 High Worple

Rayners Lane Station

Car park

MH1 A

Gully

9.15 m

Asset condition

Surface water

Circular dia 150 mmVitrified clay Pipe length:

1:75 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 6

0.00 MH 00:00:00 0Manhole Remark: MH1 A

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.72 GP 00:00:00 17_3a 0General Condition photograph

1.55 JDL 00:00:00 19_4a 2Joint displaced. Large

3.70 JDM 00:00:00 20_5a 1Joint displaced. Medium

5.26 CCJ 00:00:00 22_6a 2Circumferential Crack at joint, from 07 to 11 o´clock

5.34 JDM 00:00:00 2_7a 1Joint displaced. Medium

6.92 JDM 00:00:00 23_8a 1Joint displaced. Medium

9.15 FH 00:00:00 2_9a 0Finish Survey, Gully reached

MH1 A

Gully

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 2 Gully X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 7

Photo: 17_3a, 00:00:000.72m, General Condition photograph

Photo: 19_4a, 00:00:001.55m, Joint displaced. Large

Photo: 20_5a, 00:00:003.7m, Joint displaced. Medium

Photo: 22_6a, 00:00:005.26m, Circumferential Crack at joint, from 07 to 11 o´clock

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 2 Gully X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 8

Photo: 2_7a, 00:00:005.34m, Joint displaced. Medium

Photo: 23_8a, 00:00:006.92m, Joint displaced. Medium

Photo: 2_9a, 00:00:009.15m, Finish Survey, Gully reached

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 3 Gully X

LG18 VTJ MiniCam SoloPro No

5 High Worple

Rayners Lane Station

Car park

MH1 B

Gully

7.85 m

Asset condition

Surface water

Circular dia 150 mmVitrified clay Pipe length:

1:75 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 9

0.00 MH 00:00:00 0Manhole Remark: MH1 B

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.34 JDM 00:00:00 26_3a 1Joint displaced. Medium

2.26 JDM 00:00:00 28_4a 1Joint displaced. Medium

6.19 GP 00:00:00 29_5a 0General Condition photograph

7.85 FH 00:00:00 3_6a 0Finish Survey, Gully reached

MH1 B

Gully

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 3 Gully X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 10

Photo: 26_3a, 00:00:000.34m, Joint displaced. Medium

Photo: 28_4a, 00:00:002.26m, Joint displaced. Medium

Photo: 29_5a, 00:00:006.19m, General Condition photograph

Photo: 3_6a, 00:00:007.85m, Finish Survey, Gully reached

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 4 MH2 X

LG18 VTJ Ibos Rover Yes

5 High Worple

Rayners Lane Station

Car park

MH1 C

MH2

15.4 m

Asset condition

Surface water

Circular dia 750 mmConcrete Pipe length:

1:125 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 11

0.00 MH 00:00:00 0Manhole Remark: MH1 C

0.00 WL 00:00:00 31_2a 0Water level, 10 % height/diameter, Remark: Water standing in sewer

5.40 GP 00:00:00 36_3a 0General Condition photograph

10.00 GP 00:00:00 37_4a 0General Condition photograph

15.20 CNI 00:00:00 4_5a 4Connection, at 11 o´clock, dia 150 mm, intrusion 30 mm

15.40 EM 00:00:00 4_6a 4Encrustation medium, from 04 to 08 o´clock, 10% cross-sectional area loss

15.40 GO 00:00:00 0General Observation, Unable to remove encrustation via high pressurewater jetting

15.40 FH 00:00:00 0Finish Survey, Remaining section of sewer surveyed from MH2 X upstream

MH1 C

MH2

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 4 MH2 X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 12

Photo: 31_2a, 00:00:000m, Water level, 10 % height/diameter, Remark: Water standing in sewer

Photo: 36_3a, 00:00:005.4m, General Condition photograph

Photo: 37_4a, 00:00:0010m, General Condition photograph

Photo: 4_5a, 00:00:0015.2m, Connection, at 11 o´clock, dia 150 mm, intrusion 30 mm

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 4 MH2 X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 13

Photo: 4_6a, 00:00:0015.4m, Encrustation medium, from 04 to 08 o´clock, 10% cross-sectional area loss

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 5 MH2 X X

LG18 VTJ Ibos Rover Yes

5 High Worple

Rayners Lane Station

Car park

MH2 X

MH1

9.5 m

Asset condition

Surface water

Circular dia 750 mmConcrete Pipe length:

1:75 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 14

0.00 MH 00:00:00 0Manhole Remark: MH2 X

0.00 WL 00:00:00 39_2a 0Water level, 5 % height/diameter, Remark: Water standing in sewer

4.90 GP 00:00:00 40_3a 0General Condition photograph

8.90 EM 00:00:00 4Encrustation medium, from 05 to 07 o´clock, 10% cross-sectional area loss

8.90 GO 00:00:00 0General Observation, Unable to remove encrustation via high pressurewater jetting

9.50 CN 00:00:00 5_6a 0Connection, at 01 o´clock, dia 150 mm

9.50 FH 00:00:00 0Finish Survey, Remaining section of sewer surveyed from MH1 Cdownstream

MH2 X

MH1

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 5 MH2 X X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 15

Photo: 39_2a, 00:00:000m, Water level, 5 % height/diameter, Remark: Water standing in sewer

Photo: 40_3a, 00:00:004.9m, General Condition photograph

Photo: 5_6a, 00:00:009.5m, Connection, at 01 o´clock, dia 150 mm

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 6 MH3 X

LG18 VTJ Ibos Rover No

5 High Worple

Rayners Lane Station

Car park

MH2 A

MH3

28.8 m

Asset condition

Surface water

Circular dia 525 mmConcrete Pipe length:

1:225 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 16

0.00 MH 00:00:00 0Manhole Remark: MH2 A

0.00 WL 00:00:00 0Water level, 0 % height/diameter

1.40 GP 00:00:00 49_3a 0General Condition photograph

10.00 GP 00:00:00 50_4a 0General Condition photograph

17.90 H 00:00:00 51_5a 4Hole in sewer at 11 o´clock

19.90 DE 00:00:00 52_6a 1Debris, 5 % cross-sectional area loss

24.90 DE 00:00:00 54_7a 1Debris, 5 % cross-sectional area loss

25.50 CN 00:00:00 6_8a 0Connection, at 02 o´clock, dia 100 mm

28.80 FH 00:00:00 6_9a 0Finish Survey, MH3 reached

MH2 A

MH3

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 6 MH3 X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 17

Photo: 49_3a, 00:00:001.4m, General Condition photograph

Photo: 50_4a, 00:00:0010m, General Condition photograph

Photo: 51_5a, 00:00:0017.9m, Hole in sewer at 11 o´clock

Photo: 52_6a, 00:00:0019.9m, Debris, 5 % cross-sectional area loss

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 6 MH3 X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 18

Photo: 54_7a, 00:00:0024.9m, Debris, 5 % cross-sectional area loss

Photo: 6_8a, 00:00:0025.5m, Connection, at 02 o´clock, dia 100 mm

Photo: 6_9a, 00:00:0028.8m, Finish Survey, MH3 reached

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 7 Gully X

LG18 VTJ MiniCam SoloPro No

5 High Worple

Rayners Lane Station

Car park

MH2 B

Gully

14.24 m

Asset condition

Surface water

Circular dia 150 mmVitrified clay Pipe length:

1:125 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 19

0.00 MH 00:00:00 0Manhole Remark: MH2 B

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.57 GP 00:00:00 58_3a 0General Condition photograph

5.59 GP 00:00:00 59_4a 0General Condition photograph

8.74 JDM 00:00:00 60_5a 1Joint displaced. Medium

10.32 JDM 00:00:00 61_6a 1Joint displaced. Medium

12.32 JDM 00:00:00 62_7a 1Joint displaced. Medium

14.24 FH 00:00:00 7_8a 0Finish Survey, Gully reached

MH2 B

Gully

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 7 Gully X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 20

Photo: 58_3a, 00:00:000.57m, General Condition photograph

Photo: 59_4a, 00:00:005.59m, General Condition photograph

Photo: 60_5a, 00:00:008.74m, Joint displaced. Medium

Photo: 61_6a, 00:00:0010.32m, Joint displaced. Medium

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 7 Gully X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 21

Photo: 62_7a, 00:00:0012.32m, Joint displaced. Medium

Photo: 7_8a, 00:00:0014.24m, Finish Survey, Gully reached

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 8 Gully X

LG18 VTJ MiniCam SoloPro No

5 High Worple

Rayners Lane Station

Car park

MH2 C

Gully

19.83 m

Asset condition

Surface water

Circular dia 150 mmVitrified clay Pipe length:

1:150 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 22

0.00 MH 00:00:00 0Manhole Remark: MH2 C

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.34 GP 00:00:00 65_3a 0General Condition photograph

5.89 GP 00:00:00 67_4a 0General Condition photograph

13.70 GP 00:00:00 68_5a 0General Condition photograph

19.83 FH 00:00:00 8_6a 0Finish Survey, Gully reached

MH2 C

Gully

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 8 Gully X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 23

Photo: 65_3a, 00:00:000.34m, General Condition photograph

Photo: 67_4a, 00:00:005.89m, General Condition photograph

Photo: 68_5a, 00:00:0013.7m, General Condition photograph

Photo: 8_6a, 00:00:0019.83m, Finish Survey, Gully reached

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 9 Gully1 X

LG18 VTJ MiniCam SoloPro No

5 High Worple

Rayners Lane Station

Car park

MH3 A

Gully1

12.02 m

Asset condition

Surface water

Circular dia 225 mmVitrified clay Pipe length:

1:100 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 24

0.00 MH 00:00:00 0Manhole Remark: MH3 A

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.00 GP 00:00:00 71_3a 0General Condition photograph

0.00 LU 00:00:00 0Line of Sewer deviates up

5.16 GP 00:00:00 75_5a 0General Condition photograph

12.02 DC 00:00:00 9_6a 0Dimension of sewer changes, new dimension dia 150 mm

12.02 FH 00:00:00 0Finish Survey, Remaining section of sewer surveyed from Gully1 upstream

MH3 A

Gully1

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 9 Gully1 X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 25

Photo: 71_3a, 00:00:000m, General Condition photograph

Photo: 75_5a, 00:00:005.16m, General Condition photograph

Photo: 9_6a, 00:00:0012.02m, Dimension of sewer changes, new dimension dia 150 mm

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 10 Gully1 X X

LG18 VTJ MiniCam SoloPro No

5 High Worple

Rayners Lane Station

Car park

Gully1 X

MH3

1.94 m

Asset condition

Surface water

Circular dia 150 mmVitrified clay Pipe length:

1:25 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 26

0.00 MH 00:00:00 0Manhole Remark: Gully1 X

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.00 LD 00:00:00 0Line of Sewer deviates down

1.38 GP 00:00:00 10_4a 0General Condition photograph

1.94 DC 00:00:00 80_5a 0Dimension of sewer changes, new dimension dia 225 mm

1.94 FH 00:00:00 0Finish Survey, Remaining section of sewer surveyed from MH3 Adownstream

Gully1 X

MH3

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 10 Gully1 X X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 27

Photo: 10_4a, 00:00:001.38m, General Condition photograph

Photo: 80_5a, 00:00:001.94m, Dimension of sewer changes, new dimension dia 225 mm

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 11 MH4 X X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH4 X

Unknown

0.1 m

Asset condition

Surface water

Circular dia 225 mmVitrified clay Pipe length:

1:25 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 28

0.00 MH 00:00:00 0Manhole Remark: MH4 X

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.10 S1 RM 00:00:00 84_3a 5Mass Roots 95 % cross-sectional area loss, Start

0.10 GO 00:00:00 0General Observation, Unable to remove roots via high pressure waterjetting

0.10 SA 00:00:00 0Survey abandoned, Unable to pass mass roots

MH4 X

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 11 MH4 X X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 29

Photo: 84_3a, 00:00:000.1m, Mass Roots 95 % cross-sectional area loss, Start

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 12 MH5 X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH4 A

MH5

0.04 m

Asset condition

Surface water

Circular dia 150 mmVitrified clay Pipe length:

1:25 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 30

0.00 MH 00:00:00 0Manhole Remark: MH4 A

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.04 S1 RM 00:00:00 89_3a 5Mass Roots 60 % cross-sectional area loss, Start

0.04 GO 00:00:00 0General Observation, Unable to remove roots via high pressure waterjetting

0.04 SA 00:00:00 0Survey abandoned, Unable to pass mass roots

MH4 A

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 12 MH5 X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 31

Photo: 89_3a, 00:00:000.04m, Mass Roots 60 % cross-sectional area loss, Start

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 13 MH6 X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH4 B

MH6

0 m

Asset condition

Surface water

Circular dia 225 mmVitrified clay Pipe length:

1:25 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 32

0.00 MH 00:00:00 0Manhole Remark: MH4 B

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.00 RM 00:00:00 94_3a 5Mass Roots 95 % cross-sectional area loss

0.00 GO 00:00:00 0General Observation, Unable to remove roots via high pressure waterjetting

0.00 SA 00:00:00 0Survey abandoned, Unable to pass mass roots

MH4 B

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 13 MH6 X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 33

Photo: 94_3a, 00:00:000m, Mass Roots 95 % cross-sectional area loss

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 14 Gully X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH6 A

Gully

2.29 m

Asset condition

Surface water

Circular dia 150 mmVitrified clay Pipe length:

1:25 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 34

0.00 MH 00:00:00 0Manhole Remark: MH6 A

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.00 LU 00:00:00 0Line of Sewer deviates up

0.57 JDM 00:00:00 14_4a 1Joint displaced. Medium

1.30 GP 00:00:00 14_5a 0General Condition photograph

1.60 JDM 00:00:00 103_6a 1Joint displaced. Medium

2.29 FH 00:00:00 14_7a 0Finish Survey, Gully reached

MH6 A

Gully

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 14 Gully X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 35

Photo: 14_4a, 00:00:000.57m, Joint displaced. Medium

Photo: 14_5a, 00:00:001.3m, General Condition photograph

Photo: 103_6a, 00:00:001.6m, Joint displaced. Medium

Photo: 14_7a, 00:00:002.29m, Finish Survey, Gully reached

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 15 MH7 X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH6 B

MH7

3.91 m

Asset condition

Surface water

Circular dia 225 mmVitrified clay Pipe length:

1:50 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 36

0.00 MH 00:00:00 0Manhole Remark: MH6 B

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.00 EM 00:00:00 106_3a 4Encrustation medium, from 04 to 08 o´clock, 20% cross-sectional area loss

0.00 GO 00:00:00 0General Observation, Unable to remove encrustation via high pressurewater jetting

0.97 WL 00:00:00 108_5a 0Water level, 5 % height/diameter, Remark: Water standing due to setencrustation in sewer

3.91 EH 00:00:00 109_6a 5Encrustation heavy, from 03 to 09 o´clock, 50% cross-sectional area loss

3.91 GO 00:00:00 0General Observation, Unable to remove encrustation via high pressurewater jetting

3.91 FH 00:00:00 0Finish Survey, Remaining section of sewer surveyed from MH7 X upstream

MH6 B

MH7

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 15 MH7 X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 37

Photo: 106_3a, 00:00:000m, Encrustation medium, from 04 to 08 o´clock, 20% cross-sectional area loss

Photo: 108_5a, 00:00:000.97m, Water level, 5 % height/diameter, Remark: Water standing due to set encrustation in sewer

Photo: 109_6a, 00:00:003.91m, Encrustation heavy, from 03 to 09 o´clock, 50% cross-sectional area loss

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 16 MH7 X X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH7 X

MH6

11.76 m

Asset condition

Surface water

Circular dia 225 mmVitrified clay Pipe length:

1:100 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 38

0.00 MH 00:00:00 0Manhole Remark: MH7 X

0.00 WL 00:00:00 0Water level, 5 % height/diameter, Remark: Water standing due to setencrustation downstream

0.31 B 00:00:00 114_3a 4Sewer Broken, from 08 to 05 o´clock

1.32 WL 00:00:00 115_4a 0Water level, 10 % height/diameter, Remark: Water standing due to setencrustation downstream

3.34 GP 00:00:00 116_5a 0General Condition photograph

8.02 CCJ 00:00:00 117_6a 2Circumferential Crack at joint, from 07 to 11 o´clock

8.90 WL 00:00:00 0Water level, 20 % height/diameter, Remark: Water standing due to setencrustation downstream

9.56 JDM 00:00:00 16_8a 1Joint displaced. Medium

10.10 H 00:00:00 120_9a 4Hole in sewer at 12 o´clock

11.76 EH 00:00:00 121_10a 5Encrustation heavy, from 03 to 09 o´clock, 50% cross-sectional area loss

11.76 GO 00:00:00 0General Observation, Unable to remove encrustation via high pressurewater jetting

11.76 FH 00:00:00 0Finish Survey, Remaining section of sewer surveyed from MH6 Bdownstream

MH7 X

MH6

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 16 MH7 X X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 39

Photo: 114_3a, 00:00:000.31m, Sewer Broken, from 08 to 05 o´clock

Photo: 115_4a, 00:00:001.32m, Water level, 10 % height/diameter, Remark: Water standing due to set encrustation downstream

Photo: 116_5a, 00:00:003.34m, General Condition photograph

Photo: 117_6a, 00:00:008.02m, Circumferential Crack at joint, from 07 to 11 o´clock

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 16 MH7 X X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 40

Photo: 16_8a, 00:00:009.56m, Joint displaced. Medium

Photo: 120_9a, 00:00:0010.1m, Hole in sewer at 12 o´clock

Photo: 121_10a, 00:00:0011.76m, Encrustation heavy, from 03 to 09 o´clock, 50% cross-sectional area loss

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 17 Gully X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH7 A

Gully

5.32 m

Asset condition

Surface water

Circular dia 150 mmVitrified clay Pipe length:

1:50 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 41

0.00 MH 00:00:00 0Manhole Remark: MH7 A

0.00 WL 00:00:00 0Water level, 0 % height/diameter

0.00 JDM 00:00:00 126_3a 1Joint displaced. Medium

0.90 LU 00:00:00 0Line of Sewer deviates up

1.06 CCJ 00:00:00 129_5a 2Circumferential Crack at joint, from 01 to 06 o´clock

2.07 H 00:00:00 130_6a 4Hole in sewer at 01 o´clock

2.35 CCJ 00:00:00 131_7a 2Circumferential Crack at joint, from 07 to 12 o´clock

2.35 MC 00:00:00 132_8a 0Sewer Material changes at this point, Plastic

2.35 DC 00:00:00 133_9a 0Dimension of sewer changes, new dimension dia 100 mm

3.30 WL 00:00:00 134_10a 0Water level, 10 % height/diameter, Remark: Water standing in sewer

4.40 WL 00:00:00 0Water level, 0 % height/diameter

4.54 MC 00:00:00 136_12a 0Sewer Material changes at this point, Vitrified clay

4.54 DC 00:00:00 137_13a 0Dimension of sewer changes, new dimension dia 150 mm

5.32 FH 00:00:00 17_14a 0Finish Survey, Gully reached

MH7 A

Gully

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 17 Gully X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 42

Photo: 126_3a, 00:00:000m, Joint displaced. Medium

Photo: 129_5a, 00:00:001.06m, Circumferential Crack at joint, from 01 to 06 o´clock

Photo: 130_6a, 00:00:002.07m, Hole in sewer at 01 o´clock

Photo: 131_7a, 00:00:002.35m, Circumferential Crack at joint, from 07 to 12 o´clock

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 17 Gully X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 43

Photo: 132_8a, 00:00:002.35m, Sewer Material changes at this point, Plastic

Photo: 133_9a, 00:00:002.35m, Dimension of sewer changes, new dimension dia 100 mm

Photo: 134_10a, 00:00:003.3m, Water level, 10 % height/diameter, Remark: Water standing in sewer

Photo: 136_12a, 00:00:004.54m, Sewer Material changes at this point, Vitrified clay

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 17 Gully X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 44

Photo: 137_13a, 00:00:004.54m, Dimension of sewer changes, new dimension dia 150 mm

Photo: 17_14a, 00:00:005.32m, Finish Survey, Gully reached

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 18 Unknown X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH7 B

Unknown

11.91 m

Asset condition

Surface water

Circular dia 225 mmVitrified clay Pipe length:

Sewer disused

1:100 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 45

0.00 MH 00:00:00 0Manhole Remark: MH7 B

0.00 WL 00:00:00 0Water level, 5 % height/diameter, Remark: Water standing in sewer

0.00 CCJ 00:00:00 140_3a 2Circumferential Crack at joint, from 10 to 01 o´clock

4.71 CCJ 00:00:00 144_4a 2Circumferential Crack at joint, from 08 to 04 o´clock

5.56 CCJ 00:00:00 145_5a 2Circumferential Crack at joint, from 09 to 12 o´clock

6.88 RFJ 00:00:00 146_6a 1Fine Roots at joint

8.59 CCJ 00:00:00 147_7a 2Circumferential Crack at joint, from 01 to 04 o´clock

9.39 RF 00:00:00 148_8a 1Fine Roots

11.91 X 00:00:00 18_9a 5Collapsed Pipe, 95 % cross-sectional area loss

11.91 SA 00:00:00 0Survey abandoned, Unable to pass collapsed pipe

MH7 B

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 18 Unknown X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 46

Photo: 140_3a, 00:00:000m, Circumferential Crack at joint, from 10 to 01 o´clock

Photo: 144_4a, 00:00:004.71m, Circumferential Crack at joint, from 08 to 04 o´clock

Photo: 145_5a, 00:00:005.56m, Circumferential Crack at joint, from 09 to 12 o´clock

Photo: 146_6a, 00:00:006.88m, Fine Roots at joint

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 18 Unknown X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 47

Photo: 147_7a, 00:00:008.59m, Circumferential Crack at joint, from 01 to 04 o´clock

Photo: 148_8a, 00:00:009.39m, Fine Roots

Photo: 18_9a, 00:00:0011.91m, Collapsed Pipe, 95 % cross-sectional area loss

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 19 MH8 X X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH8 X

Main

8.35 m

Asset condition

Foul

Circular dia 150 mmVitrified clay Pipe length:

1:75 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 48

0.00 MH 00:00:00 0Manhole Remark: MH8 X

0.00 WL 00:00:00 0Water level, 5 % height/diameter

0.00 GO 00:00:00 151_3a 0General Observation, Vision limited due to steam

0.87 CCJ 00:00:00 154_4a 2Circumferential Crack at joint, from 08 to 10 o´clock

3.14 ELJ 00:00:00 155_5a 2Encrustation light at joint, from 10 to 12 o´clock

3.62 ELJ 00:00:00 156_6a 2Encrustation light at joint, from 09 to 04 o´clock

4.77 JDM 00:00:00 157_7a 1Joint displaced. Medium

7.20 LR 00:00:00 0Line of Sewer deviates right

7.20 LD 00:00:00 0Line of Sewer deviates down

7.87 JDM 00:00:00 19_10a 1Joint displaced. Medium

8.35 FH 00:00:00 19_11a 0Finish Survey, Main sewer reached within 'High Worple'

MH8 X

Main

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 19 MH8 X X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 49

Photo: 151_3a, 00:00:000m, General Observation, Vision limited due to steam

Photo: 154_4a, 00:00:000.87m, Circumferential Crack at joint, from 08 to 10 o´clock

Photo: 155_5a, 00:00:003.14m, Encrustation light at joint, from 10 to 12 o´clock

Photo: 156_6a, 00:00:003.62m, Encrustation light at joint, from 09 to 04 o´clock

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 19 MH8 X X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 50

Photo: 157_7a, 00:00:004.77m, Joint displaced. Medium

Photo: 19_10a, 00:00:007.87m, Joint displaced. Medium

Photo: 19_11a, 00:00:008.35m, Finish Survey, Main sewer reached within 'High Worple'

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/10/2019 TS-349 Light rain SG 20 MH X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH8 A

MH

29.83 m

Asset condition

Foul

Circular dia 150 mmVitrified clay Pipe length:

1:225 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 51

0.00 MH 00:00:00 0Manhole Remark: MH8 A

0.00 WL 00:00:00 0Water level, 10 % height/diameter, Remark: Constant flow through sewerat time of survey

0.00 GO 00:00:00 0General Observation, Vision limited due to steam

1.03 GP 00:00:00 20_4a 0General Condition photograph

6.30 WL 00:00:00 0Water level, 5 % height/diameter

7.68 LR 00:00:00 166_6a 0Line of Sewer deviates right

13.27 JDM 00:00:00 167_7a 1Joint displaced. Medium

15.49 GP 00:00:00 168_8a 0General Condition photograph

16.46 H 00:00:00 169_9a 4Hole in sewer at 12 o´clock

20.09 CCJ 00:00:00 170_10a 2Circumferential Crack at joint, from 08 to 04 o´clock

22.50 JDM 00:00:00 171_11a 1Joint displaced. Medium

25.53 GP 00:00:00 172_12a 0General Condition photograph

28.64 JDM 00:00:00 173_13a 1Joint displaced. Medium

29.83 FH 00:00:00 20_14a 0Finish Survey, Upstream manhole reached

MH8 A

MH

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 20 MH X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 52

Photo: 20_4a, 00:00:001.03m, General Condition photograph

Photo: 166_6a, 00:00:007.68m, Line of Sewer deviates right

Photo: 167_7a, 00:00:0013.27m, Joint displaced. Medium

Photo: 168_8a, 00:00:0015.49m, General Condition photograph

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 20 MH X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 53

Photo: 169_9a, 00:00:0016.46m, Hole in sewer at 12 o´clock

Photo: 170_10a, 00:00:0020.09m, Circumferential Crack at joint, from 08 to 04 o´clock

Photo: 171_11a, 00:00:0022.5m, Joint displaced. Medium

Photo: 172_12a, 00:00:0025.53m, General Condition photograph

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/10/2019 20 MH X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 54

Photo: 173_13a, 00:00:0028.64m, Joint displaced. Medium

Photo: 20_14a, 00:00:0029.83m, Finish Survey, Upstream manhole reached

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/11/2019 TS-349 Light rain SG 21 Unknown X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH5 A

Unknown

25.6 m

Asset condition

Surface water

Circular dia 150 mmPitch fibre Pipe length:

1:200 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 55

0.00 MH 00:00:00 0Manhole Remark: MH5 A

0.00 WL 00:00:00 0Water level, 10 % height/diameter, Remark: Water standing in sewer

0.00 S1 D 00:00:00 5Sewer Deformed, 5 %, Start, Remark: Vertical deformation

5.51 GP 00:00:00 21_4a 0General Condition photograph

15.51 GP 00:00:00 21_5a 0General Condition photograph

25.00 SA 00:00:00 0Survey abandoned, Unable to push camera any further

MH5 A

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/11/2019 21 Unknown X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 56

Photo: 21_4a, 00:00:005.51m, General Condition photograph

Photo: 21_5a, 00:00:0015.51m, General Condition photograph

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection reportDate: Job N°: Weather: Operator: section number: PLR:

Present: Vehicle: Camera: Preset: Cleaned: Grade:

Road: Division: start MH:

Place: District: end MH:

Location: Tape No.: Total length:

Location details:Location details:

Purpose: Shape/Size:

Use: Material:

Catchment:Lining:Category:

Comment:

04/11/2019 TS-349 Light rain SG 22 Unknown X

LG18 VTJ MiniCam SoloPro Yes

5 High Worple

Rayners Lane Station

Car park

MH5 B

Unknown

34.28 m

Asset condition

Surface water

Circular dia 150 mmPitch fibre Pipe length:

1:275 position code observation counter photo grade

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 57

0.00 MH 00:00:00 0Manhole Remark: MH5 B

0.00 WL 00:00:00 0Water level, 10 % height/diameter, Remark: Water standing in sewer

2.67 GP 00:00:00 22_3a 0General Condition photograph

8.97 D 00:00:00 22_4a 5Sewer Deformed, 5 %, Remark: Vertical deformation

10.17 GP 00:00:00 22_5a 0General Condition photograph

20.17 GP 00:00:00 22_6a 0General Condition photograph

30.21 GP 00:00:00 22_7a 0General Condition photograph

31.23 D 00:00:00 22_8a 5Sewer Deformed, 5 %, Remark: Vertical deformation

34.28 D 00:00:00 22_9a 5Sewer Deformed, 5 %, Remark: Vertical deformation

34.28 SA 00:00:00 0Survey abandoned, Unable to push camera any further

MH5 B

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/11/2019 22 Unknown X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 58

Photo: 22_3a, 00:00:002.67m, General Condition photograph

Photo: 22_4a, 00:00:008.97m, Sewer Deformed, 5 %, Remark: Vertical deformation

Photo: 22_5a, 00:00:0010.17m, General Condition photograph

Photo: 22_6a, 00:00:0020.17m, General Condition photograph

Tower Surveys CCTV Ltd

NottinghamNottinghamshire

Tel: 07917 435 897, Fax:

Price & Myers

Inspection photosPlace: Road: Date: section number: PLR:

Rayners Lane Station 5 High Worple 04/11/2019 22 Unknown X

TS-349 Rayners Lane Station Car Park CCTV Report_306_Issue02.mdb // page: 59

Photo: 22_7a, 00:00:0030.21m, General Condition photograph

Photo: 22_8a, 00:00:0031.23m, Sewer Deformed, 5 %, Remark: Vertical deformation

Photo: 22_9a, 00:00:0034.28m, Sewer Deformed, 5 %, Remark: Vertical deformation

\\2019Projects\TS-349\TS-349_304-305_Issue02CAD REFERENCE

c Tower Surveys CCTV Ltd.0 20 METRES

own the copyright of this drawing. Their written consent must be obtainedbefore this drawing is copied or used for any purpose other than the one for which it was supplied.\\CTB-files\TS-Utils-v01.ctb

CTB REFERENCE

GENERAL

APPRDRWNDATEREV

INFORMATION

A0

NOT TO SCALE

CHKDDESCRIPTION

DRAWING STATUS

· NO ALLOWANCE HAS BEEN MADE FOR SUB SURFACE ENTRY INTO MANHOLES OR OTHERCHAMBERS OR VOIDS BELOW GROUND LEVEL. THEREFORE ANY DETAILS RELATING TODEPTHS, SIZES ETC. ARE TAKEN FROM ABOVE GROUND AND AS SUCH WILL BE APPROXIMATEONLY.

· THE CONTRACTOR IS TO CHECK AND VERIFY ALL CRITICAL DIMENSIONS AND LEVELS BEFOREWORK STARTS.

· BURIED SERVICES SHOWN ON THIS DRAWING MAY BE ASSUMED ROUTES AND WILL NORMALLYBE OF UNKNOWN CONDITION, CONTRACTORS SHOULD UNDERTAKE SUITABLE VALIDATIONWORK AND TAKE PARTICULAR CARE DURING EXCAVATION WORK; SAFE DIGGING PRACTICESSHOULD BE FOLLOWED.

· SHOULD THERE BE ANY CONFLICT BETWEEN THE DETAILS INDICATED ON THIS DRAWING ANDTHOSE INDICATED ON OTHER DRAWINGS, THEN TOWER SURVEYS CCTV SHOULD BEINFORMED PRIOR TO CONSTRUCTION ON SITE.

· IT IS IMPORTANT TO NOTE THAT THE SAME ACCURACIES IMPLIED BY THE PLOTTING SCALEARE EQUALLY APPLICABLE TO DIGITAL DATA SUPPLIED FOR CAD.

· EVERY EFFORT IS MADE TO IDENTIFY ALL VISIBLE ABOVE GROUND FEATURES. HOWEVER, ITSHOULD BE BORNE IN MIND THAT THERE MAY BE ITEMS OBSCURED AT THE TIME OF SURVEY.

· VISIBLE FEATURES IN THE VICINITY OF THE BOUNDARIES, AS SHOWN ON THIS SURVEY, MAYNOT REPRESENT THE EXTENT OF LEGALLY CONVEYED OWNERSHIP.

· UNLESS OTHERWISE SPECIFIED FEATURES SHOWN USING LINE STYLES OR HATCHING AREINDICATIVE ONLY, SUCH AS; ROAD MARKINGS, HEDGE CENTERLINES, BRICK HATCHING ANDGLAZING DETAIL.

NORTHAPPROX

NORTHAPPROX

PRICE & MYERS

TS-349_304DRAWING NUMBER

PROJECT

CHECKEDENGINEER

SGDRAWN

APPROVED

REVISION

DATE

SCALE

DW

DW

DW

DRAWING DETAIL

PROJECT TITLE

CLIENT

RAYNERS LANE STATION CAR PARKHARROW

OCTOBER 2019

1:200

CCTV DRAINAGE SURVEY AS OF 03/10/19

(WHEN PLOTTED @ A0)

1 KENDALE GROVENOTTINGHAM

NG3 3BATEL: 07917 435 897

info@towersurveyscctv.co.ukwww.towersurveyscctv.co.uk

Tower Surveys CCTV LtdSurveyors - CCTV Drainage - Utilities - Land - Buildings

Associates in Nottingham | Stoke-on-Trent | Milton Keynes | Fareham

NOTES

DEPTHS TO TRACED METALLIC PIPEWORK REFER TO PIPE CENTRE.

ELECTRODETECTION AND/OR GROUND PROBING RADAR (GPR) TECHNIQUES HAVE BEEN

INTERPRETIVE METHODS AND IT IS THEREFORE RECOMMENDED THAT TRIAL

AND DEPTH OF SERVICES. ALL REASONABLE CARE HAS BEEN TAKEN AND EFFORT MADEIN SEARCHING AVAILABLE SERVICES RECORD INFORMATION. HOWEVER, THE COMPLETENESSOF INFORMATION SUPPLIED TO AND BY TOWER SURVEYS CCTV LTD CANNOT BE GUARANTEED.

IT SHOULD BE NOTED THAT CERTAIN TYPES OF SERVICES, SUCH AS PLASTIC ORCONCRETE PIPES OR CONDUITS WHERE THERE IS NO DIRECT ACCESS TO THE PIPE,ARE NOT TRACEABLE BY CONVENTIONAL ELECTRODETECTION METHODS; FOR THELOCATION OF THESE SERVICES, EITHER RECORDS DRAWINGS SHOULD BE SOUGHT

NUMBERS OF CABLES IN RUNS ARE NOT DETERMINED UNLESS SPECIFICALLYSHOWN. CABLE RUNS BETWEEN DRAWPITS ARE ASSUMED STRAIGHT UNLESS

PIPE RUNS ARE ASSUMED STRAIGHT BETWEEN CHAMBERS UNLESS OTHERWISE INDICATED.

SURFACE WATER SEWER

COMBINED SEWER

A FULL SET OF TOWER SURVEYS CCTV TERMS AND LIMITATIONS IS AVAILABLE ON REQUEST.

OR AN ALTERNATIVE MEANS OF OBTAINING THE INFORMATION USED.

DEPTHS OBTAINED USING GEOPHYSICAL TECHNIQUES SUCH AS GROUND PROBING RADARARE AFFECTED BY GROUND CONDITIONS THEREFORE MUST BE VIEWED AS INDICATIVE ONLY.

PLEASE REFER TO TOPOGRAPHIC SURVEY DRAWING 38949-001T-RAYN-01A

SERVICE LOCATION

ALL SERVICES ARE UNDERGROUND EXCEPT WHERE INDICATED.

SURFACE

OTHERWISE SHOWN.

OTHER

COMMENTS

UTILITIES ABBREVIATIONS

COMBINED

TYPE

RISING MAIN

FOUL

TYPE

SITE RECORDS

AS BUILT

SITE SPECIFIC

COMMENTS

FOUL SEWER

RISING MAIN

DRAINAGE / CCTV LEGEND

INFORMATION SHOWN AS TFR HAS NOT BEEN PROVEN ON SITE.

UTILITIES COMMENT BOX

SERVICES SURVEY AREA

INFORMATION SHOWN AS TFR HAS NOT BEEN PROVEN ON SITE

DEPTH TO SERVICE (m)

EXCAVATIONS OR SIMILAR ARE CARRIED OUT TO CONFIRM IDENTIFICATION, LOCATION

SERVICES TAKEN FROM RECORDS

AVAILABILITY OF STATUTORYUNDERTAKERS RECORDS DRAWINGS

USED TO LOCATE UNDERGROUND SERVICES SHOWN ON THIS PLAN. THESE ARE

ASSUMED ROUTES

PLEASE NOTE OUR CAD LAYERING CONVENTION CONTAINS FURTHER INFORMATION.

AR ACP CB CBC CDP

CL CPC CrL DCr dia

DTI

DTS EBD EOT FW IBD IL PCC RBC SL SW TFR UTL UTS UTT

1D 5C 1 DUCT 5 CABLESASSUMED ROUTEASSUMED CONNECTION POINTCONCRETE BENCHINGCIRCULAR BRICK CHAMBERCABLE DRAW PIT

COVER LEVELCIRCULAR PLASTIC CHAMBERCROWN LEVELDEPTH TO CROWNDIAMETER

DEPTH TO INVERT

DEPTH TO SOFFITEXTERNAL BACKDROPEND OF TRACEFOUL WATER SEWER INTERNAL BACKDROPINVERT LEVELPRECAST CONCRETE CHAMBERRECTANGULAR BRICK CHAMBERSOFFIT LEVELSURFACE WATER SEWERTAKEN FROM RECORDSUNABLE TO LIFTUNABLE TO SURVEYUNABLE TO TRACE

DEPTH TO BASEDTB

PLEASE NOTE THAT TOWER SURVEYS CCTV LTD ARE NOT PERMITTED TO INVESTIGATE ANYTELECOMMUNICATIONS APPARATUS, OTHER THAN EXISTING EXPOSED FEATURES. THEREFORETHIS INFORMATION MAY NOT APPEAR ON SURVEY DRAWINGS.

YES YES

YES

YES

YES

YES

NO

YES

IT IS INTENDED THAT THIS DRAWING BE REPRODUCED IN COLOUR.

CI CAST IRON

4. IF IN DOUBT ASK.

3. DO NOT SCALE FROM THIS DRAWING.

2. THIS DRAWING IS TO BE READ IN CONJUNCTION WITHAll OTHER RELEVANT DRAWINGS/DOCUMENTATION.PLEASE REFER TO TOPOGRAPHIC SURVEY DRAWING: 38949-001T-RAYN-01A

1. BACKGROUND PLAN INFORMATION IS BASED ON TOPOGRAPHIC SURVEY DATACREATED BY OTHERS AND SUPPLIED TO US FOR THE PURPOSES OF PRESENTINGOUR SURVEY OUTPUT. WE CANNOT BE HELD RESPONSIBLE FOR THE CONTENT,COMPLETENESS AND ACCURACY OF DATA CREATED BY OTHERS.

PLEASE REFER TO CCTV REPORT: TS-349_Raynors Lane Station Car Park CCTV Report_306_Issue02

304

305

(SHEET 1 OF 2)

BL WLBASE LEVEL WATER LEVEL

A

SGDW04.11.19A SGFurther CCTV drainage informationfor MH5 added to drawing