Groundwater Drainage Report - South Norfolk Council

Groundwater Drainage Report, South Norfolk Council, Poringland IUDCONTENTS1. INTRODUCTION2. LOCATION AND DESCRIPTION OF SITE3. SITE GEOLOGY4. CATCHMENT CHARACTERISTICS5. REVIEW OF FLOODING INCIDENTS6. CONCLUSIONS7. RECOMMENDATIONS8. REFERENCESAPPENDICESA. BGS BOREHOLE LOGSB. FEH PLANS AND UNIT HYDROGRAPHSC. PHOTOGRAPHSD. SNDC SCHEDULE OF REPORTED FLOODING INCIDENTSPLANS8807/21/01 SITE LOCATION PLAN8807/21/02 EXISTING DEVELOPED AREAS AND SITES APPROVED FOR FUTUREDEVELOPMENT8807/21/03 GEOLOGICAL PLAN8807/21/04 GEOLOGICAL SECTIONS8807/21/05 FLOODING INCIDENTS, CONTOURS AND GEOLOGICAL FEATURES8807/21/06 NOT USED8807/21/07 NATURAL DRAINAGE SYSTEM AND WATER ABSTRACTION BOREHOLESRef: 8807/02/SH/01-08/2041 Page 1

Groundwater Drainage Report, South Norfolk Council, Poringland IUD3.14 Additional borehole logs are available from BGS which could help to clarify the geology ofthe area. The main purpose of a borehole is to examine soil conditions at depth and theinformation obtained naturally focuses on the vertical record. The published borehole logs aretherefore of only limited use in examining the spread of surface soil types. Most of theground investigation associated with recent development has taken the form of shallow trialpits. This information could prove more useful in determining soil types at various locationsaround the villages. Site investigation from earlier development is unlikely to have beenrecorded and in these areas some form of soil sampling would be necessary to determine soilcharacteristics.Ref: 8807/02/SH/01-08/2041 Page 7

Groundwater Drainage Report, South Norfolk Council, Poringland IUD4.13 The Jacobs Report commissioned by Defra entitled “Making Space for Water” and publishedin November 2006, suggests that the presence of the overlying Boulder Clay prevents rapidrecharge of the chalk aquifer. One effect of this is that the water pressure surface in EastAnglia is unlikely to rise by more than 5m above its average level, even following prolongedexcessive rainfall. This would suggest a maximum water pressure surface level ofapproximately 20m AOD. Since ground level at the lowest point in the two villages isapproximately 45m AOD, it follows that flooding due to groundwater in the chalk is notlikely to be the source of the problem in Poringland and Framingham Earl.4.14 Water falling on the Sands and Gravels within the two villages will rapidly percolate throughto the underlying Chalky Boulder Clay. The relatively high level of surface water runoff atthe interface with the Chalky Boulder Clay will tend to follow any natural variations in levelbetween the two layers to emerge as springs at the edge of the Sand and Gravels. Over theyears, these paths will tend to become defined, forming buried channels which follow anynatural weaknesses and variations in the clay material.4.15 The springs formed by this process over the limited area of Sands and Gravels within the twovillages can vary from a steady continuous flow such as occurs on Long Road oppositeAlston’s Meadow near the junction with St Anne’s Road to transient minor seepage whichwould create no more than a damp slightly boggy area. Photographs of both types of springare shown in Appendix C. Examination of the study area suggests that most springs are of atransient nature. These transient areas of seepage are likely to become very wet followingprolonged rainfall and could give rise to localised flooding. In Poringland and FraminghamEarl the situation is made more complicated by the presence of clay layers within the Sandsand Gravels which have the potential to create perched groundwater.4.16 Old road and field names are often a good indicator of such conditions. The road anddevelopment in Springfield for instance took its name from an earlier field name, whilst theword Carr in Carr Lane is an old word for a boggy or a marshy area.Ref: 8807/02/SH/01-08/2041 Page 11

Groundwater Drainage Report, South Norfolk Council, Poringland IUD4.17 The location and effect of transient springs are affected by vegetation and new development.Trees, and particularly deciduous trees, can alter the local water table on a seasonal basisaffecting the appearance and migration of springs. The Jacobs Report has highlighted theeffect of foundations, drainage and other sub structures on the flow of ground and surfacewater. As a result, new and recent development in the study area could cause springs tomigrate to a new location as a result of changes to the pre-existing ground and surface waterflows.Ref: 8807/02/SH/01-08/2041 Page 12

Groundwater Drainage Report, South Norfolk Council, Poringland IUD5.0 REVIEW OF FLOODING INCIDENTS5.1 A schedule of reported flooding incidents in Poringland and Framingham Earl has beenprovided which was compiled from a survey undertaken by South Norfolk District Council.A copy of this schedule is included in Appendix D. However, it is not expected that thisschedule represents a complete list of all recorded flooding incidents in the study area for thefollowing reasons:• Not all residents affected by flooding problems will choose to respond to a survey.This may be due to a lack of understanding of the purpose of the study, or the minornature or transience of their particular incident and the feeling that it is not significant.• Some residents may be concerned that information gleaned during the study could beused by Insurance Companies to blight properties or raise household premiums.• Respondents to such surveys tend to focus on current or recent problems rather thanhistoric incidents. Flooding due to groundwater by its nature can be weatherdependent or occur only occasionally and when of a minor nature can often be writtenoff to other causes.• Successive development may have changed drainage patterns so that areas whichonce flooded no longer have a significant problem.5.2 The schedule has been reviewed and for the purpose of this report, all incidents which couldbe attributed to defective or inadequate mains drainage or due to the poor shape of roads orlack of highway drainage have been discounted. Whilst there is a possibility thatgroundwater may be a factor in these particular incidents, the main cause of the floodingseems to be largely due to a lack of maintenance or inadequate infrastructure.5.3 The remaining flooding incidents have been shown on plan number 8807/21/05. In additionto a small number of isolated or individual flooding problems, the plan clearly identifies fiveclusters of flooding problems across the study area, in Oaklands, Spruce Crescent,Springfield, Hadden Close and Church Close.Ref: 8807/02/SH/01-08/2041 Page 13

Groundwater Drainage Report, South Norfolk Council, Poringland IUD5.8 There are a small number of flooding incidents in the area around Carr Lane and Saxonfields.It is possible that ground and surface water movement patterns may have been altered by theongoing development by Norfolk Homes to the north of this area, although as statedpreviously, the name Carr Lane is indicative of a marshy area5.9 The isolated flooding incident reported on Rosebery Avenue to the east of the study area isunclear but most likely to be the result of an inadequate or poorly maintained soakaway.5.10 There are several individual flooding incidents that are largely sited on the Glacial Sands andGravels and flooding at these locations may be an indication of perched water due to thepresence of clay lenses.Ref: 8807/02/SH/01-08/2041 Page 15

Groundwater Drainage Report, South Norfolk Council, Poringland IUD6.0 CONCLUSIONS6.1 The groundwater flooding problems in Poringland and Framingham Earl are most likely to bethe result of water percolation through the overlying Glacial Sands and Gravels followed bysurface run-off across the interface with the underlying Chalky Boulder Clay.6.2 This run-off is most likely to produce damp or boggy conditions near the edges of the GlacialSands and Gravels which become very wet or flooded following prolonged or heavy rainfall.Road and field names such as Carr Lane and Springfield may be indicators of thelongstanding occurrance of such problems.6.3 The situation has been exacerbated by the infilling and disruption of the predevelopment fielddrainage system.6.4 Although there is reasonable correlation between known flooding and the BGS survey plans,the precise boundaries of the Glacial Sands and Gravels cannot be determined from thelimited information obtained during the preparation of this report. This means that the plansproduced for this report cannot, with any accuracy, be used to predict areas where problemsmay occur in future or to develop guidance to assist Planners in the Planning Policy orDevelopment Control Processes.6.5 There is some evidence that surface water has been taken to the foul sewerage system insome parts of the two villages either as part of improvement works or as a result of measuresto deal with inadequate surface water drainage. In the past, this has resulted in flooding ofproperties from the foul water system during storms and may be a factor in flooding in otherparts of the area.6.6 None of the current or recent development in the village has been accompanied by an indepth site investigation or drainage assessment which considered the possible effects onground or surface water drainage patterns due to construction of foundations, drainage andother sub-structures. This may have been a factor in the recent flooding incidents in the CarrLane and Saxonfields area.Ref: 8807/02/SH/01-08/2041 Page 16

Groundwater Drainage Report, South Norfolk Council, Poringland IUD7.0 RECOMMENDATIONS7.1 All new developments should be accompanied by a detailed site investigation and drainageassessment report which considers the effects of development on surface and groundwaterflows.7.2 The use of SuDS drainage on new development sites (even in areas of high permeability)should be considered very carefully on a site by site basis for possible effects on groundwatermovement and potential to cause flooding. The optimum solution to avoid the risk ofincreased groundwater flooding may be a combination of managed soakage and managedpositive drainage with controlled discharge to existing watercourses.7.3 Consider the production of a local flooding hazard map to help residents, planners anddevelopers assess the risk of flooding and determine future policy and guidance. This willinvolve examination of historic plans to establish former agricultural field drainage systemsand a full examination of all available borehole and site investigation reports for the studyarea. Further site investigation information may be available by examination of planning andbuilding regulations applications submitted to South Norfolk Council for developmentswithin the study area.7.4 In addition, consideration should be given to undertaking additional soils testing andecological studies in areas where no site investigation is currently available to check theaccuracy of the BGS survey plans.Ref: 8807/02/SH/01-08/2041 Page 18

Groundwater Drainage Report, South Norfolk Council, Poringland IUD8.0 REFERENCESi Communities and Local Government 2006; Planning Policy Statement 25: Development andFlood Risk. HMSOii Defra 2006; Making Space for Water: Groundwater Flooding Records, Collation,Monitoring and Risk Assessment (Reference HA5). Environment Agencyiii National SuDS Working Group 2004; Interim Code of Practice for Sustainable DrainageSystems.iv NERC 2006; Flood Estimation Handbook [CD-ROM]. Institute of Hydrologyv Reed R,Faulkner D and Bayliss A 1999; Flood Estimation Handbook (FEH) 5 Volumes.Institute of Hydrologyvi Woods-Ballard, et al 2007; The SuDS Manual Report C697. CIRIARef: 8807/02/SH/01-08/2041 Page 19

APPENDICES

APPENDIX A

APPENDIX B

APPENDIX C

Photographs 1and 2: Seepage from edge of Glacial Sands and Gravels causing wetboggy ground conditions immediately to the north of Poringland Wood. Dampconditions can often occur over some distance from the geological interface.

Photograph 3: Groundwater spring on Long Road opposite Alston’s Meadow. Aseries of such springs rise along Long Road in the Boulder Clay, close to thegeological interface with the Glacial Sands and Gravels.

APPENDIX D

No Location Description Report by Authority ActionFrequency12Car Park off Howe LaneNo 33 Howe LaneCar Park floods for days following heavy rain - AW have been involvedDriveway floods - becoming more frequentNo 6 Howe Ln SNC / AWNo 33Passed to saffron Housingeverytime it rains - Jan073 No 10 Shotesham Road Garden floods from Alder Close - ditch piped - possible blockage becoming more frequent No 10 Ditch maintenance chased at Nos 17 & 19 Church Cls sustained rainfall - Jan07456Shotesham RoadCar Park off Howe LaneCar Park off Howe LaneHighway floods following heavy rainCar Park floods and across access to Glenn RoadCar Park floods, 2 soakaways fillup when emptied, may run from Shot Rd bungalowsNo 11 21 & 24 NCCNo 21 & 39 Sh SNC / AwSNC / AWwest of play barnPassed to Saffron Housingheavy rain - Jan 077 No 45 Shotesham Road Garden floods from water off road No 45 NCCheavy or sustained rainfall-Jan0789No 9 Church CloseNo 27 Church CloseRear Garden floods - becoming more frequent - used to be very dryDriveway floods - becoming more frequentNo 9No 27Flare 206854Flare 207694everytime it rains-Jan0710 No 14 Saxonfields Pond outfall prone to blockages No 16 Flare 173538, 198770 - new owners - maintenance addressed111213Carr LaneSaxonfieldsNo 1 & 3 Carr LaneSystem prone to blockagesStanding water in field at end of developmentGarden flooded at No 3 and driveway at No 1No 16No 22No 1NCCNor HomesFlare 198770 - Improvements by Norfk Hms & NCCSuggests worse since development in Carr Lane-NCC Last two years - evrytime it rains1415No 124 The StreetNo 128 The StreetWater rising up through floor - history of floodingFlooding at rear of house - alleviated by ownerNo 124No 128SNC advised - dehumidifier on 24hr dayAll the time - sitting room flooded 0616 No 128b The Street17 No 23 Meadow WayFlooding on drivewayRear garden floods following heavy rainNo 128bNo 23problem made worse by building of Budgens?only referred to Carr Laneheavy rain - Jan 07less frequent1819No 1 Page CloseNo 12 Malten CloseGarden floods - neighbouring land slopes towards propertyGarden floods, poor drainage, bunalow damp, ditch filled in floods from Phillip DriveNo 1No 12Last problem 10 years agoevery time it rains - Jan0720212223No 11 Rectory LaneNo 13 Rectory LaneNo 11 Malten CloseNo 4 & 6 Hadden CloseDitch system needs attention along its lengthRear Garden Flood following heavy rainHigh water tableFlooded on 3 occasions due to obstructions in watercourseNo 11No 13No 11No 4RiparianRiparianconcern regarding maintenancemaybe spring in front garden-ditch to rear piped always wet24 No 6 Hadden Close25 No 10 Hadden Close26 No 18 Hadden Close27 No 3 Springfields28 No 2 SpringfieldsPossible springs - alleviated by ownerrunning water under house - discharging through brickworkFlooding of driveway, garage and garden - draining from higher groundFlooding in gardens, high ground water - foul system surchargingFlooded garden, high ground waterNo 10No 10SNCNo 3No 2No 10AW -foulNo 2Flare 150489Flare SNC advised of remedial workFlare SNC advised, AW to fit NRV-completed 11/07Flare SNC advised of remedial workwater pours down path eitherside of property evrytime it rainsno action by AW - problem ongoingproblem the same29 Recreation Ground Ditch needs attention - maitenance and improvements 26 Springfields PC? IUD Imp Scheme - will address maintenance also30 No 40 Rectory Lane Road and garden floods quite severely - problem for 30 years - some work done No 40 NCC, AWwet garden for 6 months of the year31 No 46 Rectory Lane32 No 52 Rectory Lane33 No 53 Rectory Lane34 No 65 & 63 Rectory Lane35 Rectory Lane/Upgate Junct36 No 3 Upgate37 No 5 Upgate38 No 5 Hall Road39 No 26 Hall Road40 No 1 Bligh Close41 No 15 Bligh Close42 No 14 Bligh Close43 Rectory LaneWatercourse needs attention - bank erosionHistory of flooding, storm & foul drains overwhelmed - some improvement workBlocked ditch causes floodingGarden floods from higher ground to east, some remedial work done SNC advisedRoad floods when drains are not maintainedDriveway floods with water off highwayFlooding on road due to highway repairs that have created low in centre of roadFlooding front of property (150-225mm) running off highwayFlooding in garden believed to run from Bligh CloseSW penetrating pitch fibre foul drains causing some concernFlooding on drive and in garage, subsidence in garageFlooding in front garden, subsidence in garage - springsBlocked drain near post boxNo 46No 52No 55No 65No 75 & 13No 3No 5No 5No 39No 1No 15No 14No 2 RosebAWAW, NCCRiparianNo 65NCCNCCNCCNCCSNCprivateprivateNCCAW carried out work in the pastno longer sewer problem - AW worksSDS to investigateFlare NCC & SNC involvedFlare SNC advisedDug 10' soakaway - has helpedHeavy summer storms 06-regular maintenance of storm drains would helpsustained rainfall - culvert under road needs unblockingheavy rain - does not appear that remedial work was carried out as advised to previous ownerno problem at No 75Maybe resolved by worksdrian blocked for a number of years44 No 20,22,24,26,28 Roseber Flooding in front gardens No 22 Some remedial work by residents SWD surveyed 4/07 Resolved45 NCC Primary School46 No 75 The StreetDitch needs attention - maitenance and improvementsDitch filled in/piped - prone to problems - cause of some floodingNo 14 SpringfNo 23 SpringfNCCRiparianSee record No 92 - being addressed by SNC & NPSMay have been resolvedDitch no mentioned in replySee record No 9347 No 4, 6 & 8 Spruce Crescent Standing water in rear gardens - suggested runoff from field - piped ditch, loss of infiltration No 4 & 6 Persimmon Loss of open ditch - runoff from higher ground- being ad every winter for 9 years4849505152535455565758596061626364656667686970Nos 2-18 Spruce Cresscent Water logging and standing water No 10 Persimmon Being addressed by Dev - SNC involvementNo 16 Spruce Crescent Boggy rear garden - problems with driveway No 16 Persimmon Being addressed by Dev - SNC involvementevery winter especially Dec - MarNos 24,26,29,31 Spruce Cre Flooding - gardens garages and roads No 24 Dev AW SNC Flare 157251 Improvement scheme being considered - being addressed by Dev - SNC involvementNo 25 & 27 Spreuce Crescent Flooding - gardens garages and roads No 25 7 27 Dev SNC inadequate drainage - being addressed by Dev heavy or prolonged rainfall- Jan 07No 52a The Street Floods into front of house during heavy rain - house lower than drive No 52a Private AW have been involved - subsidance of driveway continuallyNo 44 Royal Oak Car park floods - soakaway ineffective - following raising of pavement No 44 NCC Being addressed as part of Spruce Crescent imp wksBirches Sunnyside Water laying on unmade road Birches PrivateProblem resolved41 & 43a The Street Standing water in rear gardens No 43 SNC advised resident - possibly soakaways need replacing43a The Street Standing water in rear garden No 4318 Romany Walk Flooding Nos 18 & 20 - Highway drains unable to cope - water not able to enter system No 18 NCCFlare 212337 SNC NCC Riparian - Imp option being conwhen culverts block - SDS survey Feb0720 Romany Walk Flooding - turning head & Nos 18 & 20 - water unable to get away - pond not efficient No 20 & 23 NCC Flare 212337 SNC NCC Riparian - Imp option being considered by NCC & IUDTulip Tree Drive entrance Flooding on junction - hazzard for motorists & pedestrians No 3 & 4 NCC Drains in The Street inadequate - Jetting to remove blockages - NCC & IUDNo 7 Tulip Tree Drive Runoff washes through property and down drive like a river No 7 New Owners - no problems experience so farNo 15 Tulip Tree drive Water logged garden - soakaway no effective - some remedial work - problem unresolved No 15 Private SNC visitedNo 22 Hillside SW runs into front garden & pools to side and rear - low point No 22 NCCNo 8 Long Road Flooding from road during heavy rain - floods near house - paddle to get to house No 8 NCCNo 78 long Road Flooding on road and into front garden No 78 NCC drians in Long Road ineffectiveNo 5 Alder Close Water logged rear garden - Ditch needds attention No 5 Riparian No 17 & 19 Church Close - Maintenance requirementNo 9 Alder Close Flooded rear garden - ditch nedds attention No 9 Riparian No 17 & 19 Church Close - Maintenance requirementNo 11 Alder close Flooded rear garden - Ditch filled in? No 11 Riparian No 17 & 19 Church Close - Maintenance requirementChurch close - north side Flooded or waterlogged gardens north side of Church Close No 14 May be Spring relatedNo 6 Church Close Flooded or waterlogged front garden - drain surcharges in footpath No 6 NCC May be Spring relatedChurch close near No 8 Foul drain surcharges and floods pathway No 17 Private PFP Pitch Fibre Pipe Protocol proceedingNo 43a reports never having a problemeverytime it rains-Jan07heavy rain - Jan 07steady rain - Feb 07every time it rains - at least every monthheavy rain 3/4 times a year-Jan07SNDC Schedule of Flooding Incidents 09/01/2008

71 No 19 Church Close Ditch backs up and floods neighbouring garden to south No 19 May be Spring related72 Church Close storm drains Drains surcharge flooding road and gardens No 20, 25 & 27 No 20,21,25 NCC SW seeps into Pitch Fibre foul system - Fould System be sustained wet weather-Dec/Jan0773 No 22 Church Close Flooded rear garden No 22 SNC advisedsustained wet weather-Dec/Jan0774 No 19 & 25 The Rambles Flooded rear gardens - no 25 can be under 2" water No 25 Visit by SNC-told by residents no flooding issues only co winter months75 No 5 Highgrove Court Flooded rear garden - ditch needs attention No 5 Riparian Flare 161658 SNC Riparian maintenanceheavy rain - less since ditch cleaned -Jan0776 Highgrove Court junction Possible damaged pipe SNC CCTV survey - jetted - some restrictions cleared77 Clearview Drive Highway floods - drains surchage in heavy rain No 23 & 29 NCC Alleged soakaways inefficient-PFP Potocol progress no often78 Nos 32 - 40 Clearview Drive Drainage problems - allegedly caused by Stoke Road development filling in ditch No 38 Further info see Questionairre79 Oakcroft Drive Flooded road outside No 3 - from Norwich Road & southern end of Oakcroft drive No 4 NCC Alleged worse since roundabout constructed-highway drheavy rain - Dec/Jan 0780 No 14 & 15 Oakcroft Drive Flooded front gardens and drives - runoff from south No 14 Alleged worse since roundabout constructed-may be spr whenever it rains- new soakaways have not been effective81 No 36 Oaklands Alleged ditch filled in blocking NCC drain No 3 oakcroft NCC Reported to NCC82 No 3 Oaklands Flooded rear garden from No 2 No 3May be Spring related - uncovered blocked piped systemheavy rain - okay at present83 No 8 & 9 Oaklands Flooded rear gardens No 9May be Spring related - uncovered blocked piped system downstream - under investigation84 Oaklands All properties in Oaklands suffer from drainage problems - ditches filled by Dev No 16 & 38 May be spring related or blocked drainsheavy rain Jan 0785 No 19 Oaklands Flooding in rear garden - soakaways unable to cope- Highway drains unable to cope No 19 NCC NCC drains cleared- IUD investigating - may be spring re Flare 19670386 No 20 Oaklands Flooded front garden - road drains surcharge - maintenance issue No 20 NCC New residents - two wells in garden-garden very wet - may be spring related87 No 23 Oaklands Flooded rear garden & flooding from road - improved with remedial work No 23 NCC NCC drain ineffective - also runoff from No 22 - Passed heavy rain88 No 28 Oaklands Flooded rear garden & garage No 28 Blocked culvert?? - may be spring relatedevery month sewers get blocked89 No 32 Oaklands Road floods - drains unable to cope - ditch to rear needs attention - rear garden floods No 32 NCC NCC gully too high - passed to NCC - ditch to rear needs everytime it rains hard Jan0790 No 33 Oaklands Flooded rear garden and garage No 33 Flare 196703 SNC-may be spring relatedconstantly a problem with high ground water91 No 7 Highgrove Court Flooding from field-rear garden and laying beside house-large soakaway in front drive No 7 Riparian Flare 221322 - field runoff & blocked drains - neighbouri heavy rain - Jan/Feb 0792 No 14 Springfields Flooding on drive and sometimes into garage runs onto property from road No 14 NCC Some improvement to drainage on main road 2/3 times a year93 No 23 Springfields Flooding on road into Springfields No 23 NCCheavy rain - 6 times a year Jan 0794 No 26 Springfields Standing water in agrden, on drive and in road No 28 AW aware of past sewage problem - still to be resolved heavy rain Jan/Feb 0795 No 29, 27 Norwich Road Dyke at rear of properties full of rubbish, cant cope with surface water from field No 29 Riparian Will address as part of Imp Scheme96 1 Hall Lane Surface water being thrown into drive by cars- Drive & Garage flooding No 1 SNC advised97 Carr Lane Road flooded - ditch adjacent to field full of brown water for months Parish Council Norfk Homes EA approved scheme - new highway drainage - ditched piped and pond storage provided by Dev98 No 26 Springfields Standing water on rear garden No 26 SW problem only since Jan 07- exceptional weather99 No 12 Oaklands FWD in rear garden surcharges during heavy rain No 12 AW & SNC aware but no action taken-being addressed frequently100 Oaklands - turning head Floods like a lake whenever there is heavy rain No 12 NCC NCC aware - Drains jetted 11/07 and ds ditch cleared frequently101 No 7 Oaklands Flooded rear garden No 7 Blocked drains or Spring relatedheavy rain102 No 14 Church Close Rear garden very wet - originally old ditch system ran to rear and between No 16 & 18 No 14 Loss of ditch - may be spring related103 No 11a Norwich road104 No 24 Spruce Crescent105 No 10 Spruce Crescent106 No 7 & 9 Caistor Lane107 No 3 St Edmunds Close108 No 11a Hadden Close109 Nos 1, 3 & 5 Boundary Way110 No 2 Oaklands111 No 14 Oaklands112 No 15 Oaklands113 No 16 Oaklands114 No 22 Oaklands115 No 25 Oaklands116 No 29 Oaklands117 No 40 OaklandsRear garden very wet - alleged piped system to rear but no access pointsNo Problems at present - last problem 3 years ago. Frequncy SporadicBad Drainage - due to ditches being filled in with clayRunoff from field at rear through air bricks of property - ditch to front not flowingRunoff from field to south through No 4, 4a 5 & 6Saturated rear garden running ground waters-neighbouring properties have similar problemsSaturated rear garden - lack of ditch maintenance at No 49 Stoke RoadFlooded rear gardenFlooded rear gardenFlooded rear gardenFlooded rear gardenStanding water in gardenFront drive & garden floodsrear garden floods from runoff to southSurface water problems after heavy or prolonged rainfallNo 11aNo.24No. 10No 7 & 9No 3No 11aNo 3, 1 & 5No 2No 14No 15No 16No 22No 25No 29No 40SNC aware-new temp ditch being dug - culvert approx 150mm dia - possibly blocked downstream - needsd further investigationPersimmon Being addressed by Dev - SNC involvementPersimmon Being addressed by Dev - SNC involvementRiparian Imp Scheme to address field runoff (IUD)-jetting & surveying of system to front - some Imp but further jetting programmedRiparian Downstream maintenance to be addressed by Landown Flare 230327possibly spring related Flare 230327Riparian Legal Case-Dev stopped outfall from ditch - IUD looking at possible solutionIUD investigating - possible blocked SWD drain Flare 196703IUD investigating - possible blocked SWD drain Flare 196703IUD investigating - possible blocked SWD drain Flare 196703IUD investigating - possible blocked SWD drain Flare 196703IUD investigating - possible blocked SWD drain Flare 196703IUD investigating - possibly spring related Flare 196703IUD investigating - possibly spring related Flare 196703IUD investigating - possibly spring related Flare 196703SNDC Schedule of Flooding Incidents 09/01/2008

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