FOUL DRAINAGE & UTILITIES ASSESSMENT Proposed Residential Development
Site F, Thame, Oxfordshire
Prepared for: Regeneration Holdings Ltd Issue 2: 7 March 2011
Ref: TR8100196/JR/DW/035
Ref: TR8100196/JR/DW/035 Issue 2: 7 March 2011
Document History
Issue Date Description Prepared By Checked By
1 2 March 2011 Working draft to aid discussion at meeting with SODC 3 March 2011
Jordan Rayner J Birch
2 7 March 2011 Final version issued as technical appendix to concept masterplan
Jordan Rayner J Birch
Glanville Glanville Consultants is a multi-disciplinary consultancy with the following expertise:
− Civil and Structural Engineers
− Building Surveyors
− Highway and Traffic Engineers
− Transport Planners
− Land Surveyors
− Building Investigation Experts
− CDM Co-ordinators For further advice contact: Cornerstone House Offices also at: 575-599 Maxted Road 62 Foxhall Road Hemel Hempstead Didcot Hertfordshire Oxfordshire OX11 7AD HP2 7ED
Telephone: 01235 515550 Telephone: 01442 202600 Fax: 01235 817799 Fax: 01442 212599
[email protected] www.glanvillegroup.com
Glanville Consultants Ltd. All rights reserved. This report contains confidential information intended solely for the recipient. No part of this report may be copied, reproduced or stored electronically without prior written permission from Glanville Consultants Ltd. This report has been prepared in accordance with the commissioning brief and is for the client’s exclusive use unless otherwise agreed in writing. Glanville Consultants Ltd does not accept liability for any use of this report, other than for the purposes for which it is was originally prepared and provided. Third parties should not use or rely on the contents of this report without written permission from Glanville Consultants Ltd.
Ref: TR8100196/JR/DW/035 Issue 2: 7 March 2011
Contents
Executive Summary .............................................................................................................. 1
1.0 Introduction ................................................................................................................ 2
2.0 The Proposed Development Site................................................................................ 3
3.0 Utilities........................................................................................................................ 4
4.0 Foul Water Drainage .................................................................................................. 6
5.0 Summary and Conclusions......................................................................................... 7
Appendices Appendix A: Site Location Plan
Appendix B: Concept Masterplan
Appendix C: Linesearch Enquiry Result
Appendix D: Southern Gas Networks
Appendix E: Thames Water
Appendix F: EDF Energy
Appendix G: British Telecom
Appendix H: Proposed Foul Water Drainage Strategy
Ref: TR8100196/JR/DW/035 1 Issue 2: 7 March 2011
Executive Summary
Site F has been selected by South Oxfordshire District Council (SODC) as the preferred site for large-scale housing development in Thame following consultation on the Council’s Core Strategy Options. A Foul Drainage & Utilities Assessment has been prepared as a technical appendix to the concept masterplan that will accompany SODC’s Core Strategy submission for Site F in mid-March 2011. The principal public utility companies which serve the Thame area are Southern Gas Networks, Thames Water (potable water and sewerage), EDF Energy (electricity) and British Telecom (BT). Gas, potable water, electricity and telecommunication services all exist adjacent to the site along Oxford Road. Supplies of gas are present in both medium and low pressure mains. Potable water pipework exists in both local distribution mains and a large trunk main. Electricity supply is present in both high voltage and low voltage networks. BT ducts exist on both sides of Oxford Road and along the south side of the A418. A public foul sewer exists past the site on Oxford Road. Once planning approval is granted, detailed plans and service loadings will be submitted to each service provider so that proposals and quotations can be obtained for new supplies. None of the utility searches has indicated apparatus within the boundary of Site F and thus it is unlikely that service diversions will be necessary to enable the site to be developed. However, two vehicular accesses are proposed to serve Site F from Oxford Road and both accesses cross existing underground and/or overhead services which may require diversion and/or protection. Detailed proposals and cost estimates for the accommodation works required to facilitate the construction of the site accesses will be obtained from the affected utility companies. Due to the local topography it is likely that foul water from Site F will drain under gravity to the south-eastern corner of the site where a new foul water pumping station will be provided that will discharge to the public foul sewer in Oxford Road. The capacity of existing foul water infrastructure in the Thame area is currently being reviewed by Thames Water in view of the proposed development of Site F. Thames Water is expected to report on the need for any infrastructure upgrades in March 2011. In conclusion, it is considered that there should be no significant difficulty in providing new infrastructure to serve Site F or any significant abnormal costs that would prevent the site from being developed for residential purposes.
Ref: TR8100196/JR/DW/035 2 Issue 2: 7 March 2011
1.0 Introduction
1.1 Site F has been selected by South Oxfordshire District Council (SODC) as the
preferred site for large-scale housing development in Thame following consultation on the Council’s Core Strategy Options. SODC’s Core Strategy submission is to be subject of Examination in Public in Summer 2011.
1.2 Glanville Consultants has been engaged by Regeneration Holdings Ltd to prepare a
Foul Drainage & Utilities Assessment as a technical appendix to the concept masterplan that will accompany SODC’s Core Strategy submission for Site F in mid-March 2011.
1.3 This report considers all existing services known to be located in the vicinity of the
site. It examines the existing situation, the feasibility of providing new connections and the need for diversionary work. The utility services considered include:
• Gas
• Water
• Electricity
• Telecommunications 1.4 The report also outlines a strategy for the disposal of foul water from the site once
developed for residential purposes. 1.5 The surface water drainage strategy can be found in the Flood Risk Assessment,
which has been prepared as a separate technical appendix to the concept masterplan for Site F.
Ref: TR8100196/JR/DW/035 3 Issue 2: 7 March 2011
2.0 The Proposed Development Site
2.1 The site is located approximately 1.2km north-west of Thame town centre. It is
bounded by the River Thame to the north, the A418 Thame bypass to the west, Oxford Road to the south and Cuttle Brook, residential properties and open fields to the east.
2.2 The site is located at Landranger Grid Reference SP 695 061. 2.3 A site location plan can be found at Appendix A. Existing Site Description 2.4 The total site area is 34.7Ha, all of which is farmland and used for grazing livestock. 2.5 The site falls steadily from south-west to north-east towards the River Thame and
Cuttle Brook. Approximately 7.6Ha of land adjacent to these watercourses is within the flood plain, and so the area suitable for accommodating residential development is 27.1Ha, including roads and green spaces
Proposed Development 2.6 The proposed development is known as “Site F”. Site F has been selected by South
Oxfordshire District Council (SODC) as the preferred site for large-scale housing development in Thame following consultation on the Council’s Core Strategy Options. SODC’s Core Strategy submission is to be subject of Examination in Public in Summer 2011.
2.7 It is proposed to provide a total of 530 residential dwellings on Site F. Of these, 60%
will be designated as ‘open market’ and 40% will be designated as ‘affordable’. 2.8 A concept masterplan has been developed for Site F to show how the various land
uses can be accommodated to meet SODC’s adopted standards. A copy of the concept masterplan for Site F is included at Appendix B.
Ref: TR8100196/JR/DW/035 4 Issue 2: 7 March 2011
3.0 Utilities
Existing Services 3.1 Records have been obtained from utility companies known to have sewers, plant and
apparatus within and surrounding the site. The principal public utility companies that serve the Thame area are:
• Southern Gas Networks (gas)
• Thames Water (potable water & sewerage)
• EDF (electricity)
• British Telecom (telecommunications) 3.2 Copies of the service records obtained are included in the appendices stated below. 3.3 An internet based enquiry using www.linesearch.org was also concluded to ascertain
the presence of more obscure or confidential utilities such as Government Pipelines (GPSS) and High Pressure Pipelines. A list of utilities not found to be present in the area is included in Appendix C for reference.
Gas 3.4 Records obtained from Southern Gas Networks are included in Appendix D for
reference. Record information indicates there are medium pressure (MP) and low pressure (LP) gas mains running the length of Oxford Road, serving Thame to the south and east of the site.
3.5 The LP main runs from the centre of Thame on the south side of Oxford Road and
ends in Highfield Close at the south-western end of the site. This main serves properties to the south of Oxford Road. The MP main runs from Thame on the north side of Oxford Road and continues to the west of the site along the A418.
3.6 There is no Southern Gas Networks apparatus indicated within the development site
boundary. Potable Water 3.7 Record information obtained from Thames Water is included at Appendix E. The
records indicate there is an existing network of water mains serving Thame, with a distribution main running along the south side of Oxford Road and south along Rycote Lane, south of the site. There is also a trunk main, used for the bulk distribution of water, running along the north side of Oxford Road, crossing to the south side of Oxford Road immediately to the east of Highfield Close and then running west along the A418.
3.8 There is no Thames Water apparatus indicated within the development site
boundary.
Electricity 3.9 Record information obtained from EDF Energy is included at Appendix F. The
records indicate that there are existing networks of both high and low voltage supplies along Oxford Road.
Ref: TR8100196/JR/DW/035 5 Issue 2: 7 March 2011
3.10 There are three sub-stations positioned along Oxford Road located adjacent to the water main booster station in Highfield Close, at Lord Williams School and at the foul water pumping station near Cuttle Brook.
Telecommunications
3.10 Record information obtained from British Telecom (BT) is included at Appendix G.
This information indicates there are two ducts running along Oxford Road serving Thame to the south and east of the site, and a single duct following the western boundary in the verge of the A418 bypass.
3.11 There is no BT apparatus indicated within the development site boundary.
New Supplies 3.12 Gas, water, electricity and telecommunication services exist adjacent to the site
along Oxford Road and serving the main urban area of Thame to the south and east of the site. Proposals for servicing the site have not yet been obtained from the utility companies.
3.13 Given the scale of the development and the extra demand it will generate to existing
services, a detailed assessment will be required in order to determine if any reinforcement of local supply networks is required. It is likely that new electricity sub stations will be required, however, the adjacent supplies of gas and water are relatively large scale installations (medium pressure gas and trunk water main), and so may already have sufficient capacity to serve Site F.
3.14 Thames Water's potable supply is provided from Long Crendon reservoir. The effect
of the extra demand will need to be modelled at the detailed design stage. 3.15 Once planning approval is granted for residential development on Site F, detailed
plans and service loadings will be submitted to each service provider so that proposals and quotations can be obtained for new supplies.
3.16 A more in depth investigation will be required to ascertain the precise location and
depths of the utilities when there are plans to make connections.
Diversions
3.17 None of the utility searches has indicated apparatus within the boundary of Site F and thus it is unlikely that service diversions will be necessary to enable the site to be developed.
3.18 Two vehicular accesses are proposed to serve Site F from Oxford Road and both accesses cross existing underground and/or overhead services which may require diversion and/or protection. Detailed proposals and cost estimates for the accommodation works required to facilitate the construction of the site accesses will be obtained from the affected utility companies at the detailed design stage.
Ref: TR8100196/JR/DW/035 6 Issue 2: 7 March 2011
4.0 Foul Water Drainage
Existing Situation 4.1 Sewer records obtained from Thames Water are included in Appendix E and indicate
a comprehensive network of public foul sewers serving Thame. These records only show those sewers that are maintained by Thames Water. Other privately owned sewers may be present in the vicinity of the site, but these are not shown on public records.
4.2 A single foul water gravity sewer exists adjacent to the site, which runs along the
south side of Oxford Road and crosses to the north side of the road to the east of Town Farm Close. This sewer serves properties to the north and south of Oxford Road and discharges to a pumping station near the south-eastern end of the site, just to the west of the road bridge over Cuttle Brook. A rising main from this pumping station discharges to a gravity sewer to the east of Cuttle Brook from where it flows east through the town centre.
4.3 Thame’s sewage treatment works is located to the north of the town, to the north of
Kingsey Road and to the west of Moorend Lane. 4.4 No public foul sewers are located within the development boundary. Proposed Foul Water Drainage Strategy 4.5 Thames Water has been contacted and has indicated that Site F would be the
preferred location for large-scale housing in Thame, in terms of sewage treatment infrastructure; because Site F is closer to the sewage treatment works than the alternative sites.
4.6 Thames Water has also indicated that detailed modelling will be required to assess
the capacity of existing infrastructure and the impact the development of Site F will have on demand to establish whether any upgrading will be required. A detailed report with costings is expected from Thames Water in March 2011.
4.7 Due to the local topography, it is likely that foul water from Site F will drain under
gravity to the south-eastern corner of the site where a new foul water pumping station will be provided that will discharge to the existing public foul sewer in Oxford Road. The foul water drainage strategy is outlined in the drawing included at Appendix H.
4.8 The proposals will be reviewed during development of the detailed design and with
the results of Thames Water’s modelling to ensure that Site F can be integrated with the wider infrastructure requirements of Thames Water.
4.9 All additional foul water infrastructure constructed to serve Site F will be designed in
accordance with sewers for Adoption, 6th Edition and current best practice. It is envisaged that the new infrastructure will be offered to Thames Water for adoption under Section 104 of the Water Industry Act, 1991.
Ref: TR8100196/JR/DW/035 7 Issue 2: 7 March 2011
5.0 Summary and Conclusions
5.1 Site F has been selected by South Oxfordshire District Council as the preferred site
for a large-scale housing development in Thame. It is proposed to provide a total of 530 residential dwellings on the site.
5.2 The feasibility of providing the proposed development with gas, water, electricity and
telecommunication supplies has been considered, along with a strategy for the disposal of foul water from the site once developed.
5.3 Gas, water, electricity and telecommunication services exist adjacent to the site
along Oxford Road. 5.4 Given the scale of the development, and the extra demand it would generate, a
detailed assessment is required in order to establish if any upgrading of services are required. However, the adjacent supplies of gas and water are relatively large size installations and may therefore already have sufficient capacity to serve Site F.
5.5 A more in depth investigation will be required to ascertain the precise location and
depths of the utilities when there are plans to make a connection. 5.6 It is likely that service diversions and/or protection will be necessary to facilitate the
construction of the two proposed accesses to the site from Oxford Road. 5.7 Once planning approval is granted for residential development on Site F, detailed
plans and service loadings will be submitted to each service provider so that proposals and quotations can be obtained for new supplies.
5.8 The capacity of existing foul water infrastructure in Thame is currently being reviewed
by Thames Water and a report on the need for any infrastructure upgrades to serve Site F is expected in March 2011.
5.9 In conclusion, it is considered that there should be no significant difficulty in providing
new infrastructure to serve Site F or any significant abnormal costs that would prevent the site from being developed for residential purposes.
Ref: TR8100196/JR/DW/035 Issue 2: 7 March 2011
Appendices
Ref: TR8100196/JR/DW/035 Issue 2: 7 March 2011
Appendix A
Location Plan
Ref: TR8100196/JR/DW/035 Issue 2: 7 March 2011
Appendix B
Concept Masterplan
Ref: TR8100196/JR/DW/035 Issue 2: 7 March 2011
Appendix C
Linesearch Enquiry Result
Search Results
Thank you for your enquiry: LS-110223-YT-170-PHN
Thank you for your enquiry, there is no further action necessary.
Please note
The Linesearch.org system only contains information on National Grid's Transmission assets. All other
National Grid or other local high pressure (above 7 bar) gas pipelines and lower pressure gas mains
are not included.
For all other energy network operators' information and contact details see http://2010.energynetworks.org/
Please quote the Linesearch enquiry reference number in *all* correspondence
Please print this screen for your records.
Subject always to our standard terms and conditions, this enquiry result is valid for 28 days only
from the date of enquiry and is based on the confirmed information you entered. If the location of
the work changes then a further enquiry must be made. Should the work not be undertaken within
28 days of the enquiry then a further enquiry must be made.
ENQUIRER DETAILS
Name: Miss Jordan Rayner
Company: Glanville
Email: [email protected]
Tel: 01235515550
ENQUIRY DETAILS
Your reference: 8100196
Your location: 469584 206185
Confirmed location: OS grid reference (469584
206185)
Estimated start date: 25th February 2011
Planned works: No
Type of work: Development Projects - Housing
Distance covered: 500 metres
NOT IN THE ZONE OF INTEREST
BOC Limited (A Member of the Linde Group)
BP Exploration Purbeck Southampton
Pipeline
BPA
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E-on UK Plc (Gas Pipelines Only)
Esso Petroleum Company Limited
FibreSpeed Limited
Geo Networks Limited
Government Pipelines & Storage System
INEOS Manufacturing (Scotland and TSEP)
Ineos Enterprises Limited
Mainline Pipelines Limited
Manchester Jetline Limited
Marchwood Power Ltd (Gas Pipeline)
NPower CHP Pipelines
National Grid Gas and Electricity
Transmission
Oikos Storage Limited
Premier Transmission Ltd (SNIP)
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Scottish Power Generation
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Star Energy
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Pipelines)
Wingas Storage UK Ltd
This service is brought to you by Fisher German ©2011
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Ref: TR8100196/JR/DW/035 Issue 2: 7 March 2011
Appendix D
Southern Gas Networks
Ref: TR8100196/JR/DW/035 Issue 2: 7 March 2011
Appendix E
Thames Water
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Scale:
Width: 1328m
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 before any works are undertaken. Crown copyright Reserved
Based on the Ordnance Survey Map with thesanction of the Controller of H.M StationaryOffice License Number 10019345
CDWS/CDWS Standard/2011_1940117
0 60 120 180 24030Meters
DRUBINID
SP6906SE
28/01/2011
469624,206198
Printed By:
Print Date:
Map Centre:
Grid Reference:
Comments:1:4753
CDWS/CDWS Standard/2011_1940117
NB: Level quoted in metres Ordnance Newlyn Datum. The value -9999.00 indicates no Survey information is available.
REFERENCE COVER LEVEL INVERT LEVEL REFERENCE COVER LEVEL INVERT LEVEL
0005 64.18 62.65 1102 66.23 65.56
1101 67.18 64.31 2201 67.96 64.18
2202 67.76 64.08 2203 66.11 63.87
9503 63.7 62.84 0502 63.45 62.09
9515 63.81 63.33 9512 64.19 63.21
9509 64.05 63.02 9517 63.9 61.78
0503 63.9 60.97 9615
9616 64.54 63.6 0704
9702 69.7 68.56 9801 70.02 68.55
9802 70.48 68.97 9504 64.03 62.63
9701 69.7 68.72 8702 70.89 69.23
8703 70.99 69.54 8901 68.07 66.86
991A 7502 65.38 63.48
8503 65.09 63.28 8510 65 63.47
8509 65.35 63.63 7503 65.52 63.75
7501 65.62 63.82 8508 65.82 64.15
8501 65.93 64.13 8707 68.6 67.61
8708 7701
7704 7902 73.24 72.22
7705 7702
7703 7901 72.22 70.42
4804 77.32 75.58 4802 76.71 75.14
4803 76.71 75.04 4801 76.44 74.87
5801 77.21 74.67 5802 77.07 74.65
6902 76.46 74.6 6901 74.6 73.18
9502 63.82 61.97 9501 63.99 62.06
961B 64.47 62.435 961C 64.42 62.41
961A 64.47 62.455 9603 64.38 62.19
961D 64.81 62.312 861A 64.97 62.54
0601 66.71 64.79 8602 66.19 64.65
0602 67.73 65.8 9604 67.79 66.39
8601 67.33 65.89 0701 69.82 68.66
8701 68.18 67.04 0702 70.49 68.31
0705 0703 69.43 67.73
0801 68.53 66.72 8902 69.62 68.23
0902 64.45 0903 64.45
0001 64.46 62.81 0007
0002 64.87 64.18 1801 66.43 64.26
191A 64.665 63.5 0901 64.327 63.318
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 ofany kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified before any works are undertaken. Crown copyright Reserved
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Cham
ber
Opera
tional S
ite
Conduit B
ridge
Foul S
ew
er
Com
bin
ed S
ew
er
Culv
ert
ed W
ate
rcours
e
Surf
ace W
ate
r S
ew
er
Gulle
y
Pro
posed
Abandoned S
ew
er
Tunnel
6)
The
text
appearing
alo
ngsid
ea
sew
er
line
indic
ate
sth
ein
tern
al
dia
mete
rof
the
pip
ein
mili
metr
es.
Text
next
toa
manhole
indic
ate
sth
em
anhole
refe
rence
num
ber
and
should
not
be
taken
as
am
easure
ment.
Ifyou
are
unsure
about
any
text
or
sym
bolo
gy
pre
sent
on
the
pla
n,
ple
ase
conta
ct
a
mem
ber
of P
ropert
y Insig
ht on 0
118 9
25 1
504.
PP
M
W
Scale:
Width: 1328m
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 before any works are undertaken. Crown copyright Reserved
Based on the Ordnance Survey Map with thesanction of the Controller of H.M StationaryOffice License Number 10019345
CDWS/CDWS Standard/2011_1940117
0 60 120 180 24030Meters
DRUBINID
SP6906SE
28/01/2011
469624,206198
Printed By:
Print Date:
Map Centre:
Grid Reference:
Comments:1:4753
Pag
e 1
4 o
f 24
Wa
terw
ork
s K
ey -
Co
mm
erc
ial D
rain
ag
e a
nd
Wa
ter
En
qu
iry
PIP
E D
IAM
ET
ER
DE
PT
H B
EL
OW
GR
OU
ND
Up to 3
00m
m (
12”)
900m
m (
3’)
300m
m -
600m
m (
12”
- 24”)
1100m
m (
3’ 8”)
600m
m a
nd b
igger
(24”
plu
s)
1200m
m (
4’)
Dis
trib
uti
on
Ma
in:T
he
mo
stco
mm
on
pip
esh
ow
no
nw
ate
rm
ap
s.
With
few
exce
ptio
ns,
do
me
stic
co
nn
ectio
ns
are
on
lym
ad
eto
dis
trib
utio
n m
ain
s.
Tru
nk
Ma
in:
Am
ain
ca
rryin
gw
ate
rfr
om
aso
urc
eo
fsu
pp
lyto
atr
ea
tme
ntp
lan
torre
se
rvo
ir,o
rfr
om
on
etr
ea
tme
ntp
lan
torre
se
rvo
irto
an
oth
er.A
lso
am
ain
tra
nsfe
rrin
gw
ate
rin
bu
lkto
sm
alle
rw
ate
rm
ain
s u
se
d fo
r su
pp
lyin
g in
div
idu
al cu
sto
me
rs.
Su
pp
lyM
ain
:A
su
pp
lym
ain
ind
ica
tes
tha
tth
ew
ate
rm
ain
isu
se
da
s a
su
pp
ly fo
r a
sin
gle
pro
pe
rty o
r g
rou
p o
f p
rop
ert
ies.
Fir
eM
ain
:W
he
rea
pip
eis
use
da
sa
fire
su
pp
ly,th
ew
ord
FIR
Ew
illb
e d
isp
laye
d a
lon
g th
e p
ipe
.
Me
tere
dP
ipe
:A
me
tere
dm
ain
ind
ica
tes
tha
tth
ep
ipe
inq
ue
stio
nsu
pp
lies
wa
terfo
ra
sin
gle
pro
pe
rty
or
gro
up
ofp
rop
ert
ies
an
dth
at
qu
an
tity
ofw
ate
rp
assin
gth
rou
gh
the
pip
eis
me
tere
de
ve
nth
ou
gh
the
re m
ay b
e n
o m
ete
r sym
bo
l sh
ow
n.
Tra
ns
mis
sio
nTu
nn
el:
Ave
ryla
rge
dia
me
ter
wa
ter
pip
e.
Mo
st
tun
ne
lsa
reb
uri
ed
ve
ryd
ee
pu
nd
erg
rou
nd
.T
he
se
pip
es
are
no
te
xp
ecte
dto
affe
ctth
estr
uctu
rali
nte
gri
tyo
fb
uild
ing
ssh
ow
no
nth
em
ap
pro
vid
ed
.
Pro
po
se
dM
ain
:A
ma
inth
atis
still
inth
ep
lan
nin
gsta
ge
so
rin
the
pro
ce
ss
of
be
ing
laid
.M
ore
de
tails
of
the
pro
po
se
dm
ain
an
dits
refe
ren
ce
nu
mb
er
are
ge
ne
rally
in
clu
de
d n
ea
r th
e m
ain
.
Wa
ter
Pip
es
(Op
era
ted
& M
ain
tain
ed
by T
ha
me
s W
ate
r)
Hy
dra
nts
Sin
gle
Hyd
ran
t
Me
ters
Me
ter
Va
lve
s
Ge
ne
ral P
urp
oseV
alv
e
Air
Va
lve
En
d I
tem
s
Sym
bo
l in
dic
atin
g w
ha
t h
ap
pe
ns a
t th
e e
nd
of $
a w
ate
r m
ain
.
Bla
nk F
lan
ge
Ca
pp
ed
En
d
Un
de
fin
ed
En
d
Ma
nifo
ld
Cu
sto
me
r S
up
ply
Fir
e S
up
ply
Em
pty
ing
Pit
Op
era
tio
na
l S
ite
s
Bo
oste
r S
tatio
n
Oth
er
Oth
er
(Pro
po
se
d)
Pu
mp
ing
Sta
tio
n
Se
rvic
e R
ese
rvo
ir
Sh
aft In
sp
ectio
n
Tre
atm
en
tWo
rks
Un
kn
ow
n
Oth
er
Sy
mb
ols
Oth
er
Wa
ter
Pip
es
(No
t O
pe
rate
d o
r M
ain
tain
ed
by T
ha
me
s W
ate
r)
Da
ta L
og
ge
r
Oth
er
Wate
rC
om
pan
yM
ain
:O
ccasio
nally
oth
er
wate
rcom
pany
wate
rpip
es
may
overl
ap
the
bord
er
of
our
cle
an
wate
rcovera
ge
are
a.
These
main
sare
denote
din
purp
leand
inm
ost
cases
have
the o
wner
of th
e p
ipe d
ispla
yed a
long them
.
Pri
vate
Main
:In
dia
tes
thatth
ew
ate
rm
ain
inquestion
isnotow
ned
by
Tham
es
Wate
r.T
hese
main
snorm
ally
have
textassocia
ted
with
them
indic
ating the d
iam
ete
r and o
wner
of th
e p
ipe.
3”
SU
PP
LY
3”
FIR
E
3”
ME
TE
RE
D
L
C F
4”
16”
Wa
terTo
we
r
?
Pre
ssu
re C
on
tro
lVa
lve
Cu
sto
me
rVa
lve
Ref: TR8100196/JR/DW/035 Issue 2: 7 March 2011
Appendix F
EDF Electricity
Ref: TR8100196/JR/DW/035 Issue 2: 7 March 2011
Appendix G
British Telecom
Ref: TR8100196/JR/DW/035 Issue 2: 7 March 2011
Appendix H
Proposed Foul Water Drainage Strategy
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