North East Wales


Our North East area stretches from Colwyn Bay in the west over to Cheshire and parts of the Wirral and includes one of Europe’s largest industrial estates at Deeside.

Examples of investment in area:

  • We are investing £13m at our wastewater treatment works at Tattenhall, Whitchurch, Malpas and Farndon to improve the river water quality of the River Dee under the Water Framework Directive. At the sites we are either introducing or enhancing existing phosphorous removal. As part of this investment plan we are also converting the treatment works at No Mans Heath to a pumping station which will pass flows onto Malpas wastewater treatment works for enhanced treatment.
  • We’ve delivered £2.1m of flooding alleviation scheme in Wrexham, reducing the risk of flooding to our customers.
  • We are undertaking an extensive water quality modelling programme to identify what the main sources of phosphorus are in the river Dee and where it is best to target our investment now and in the future. We will also support the work of the Dee Nutrient Management Board once it is established with evidence from our modelling and expertise on how we can best contribute to restoring the river to a favourable condition.
  • We are also part of the River Alyn working group which has been looking at the flow problems in the river for several years and we also contributed to the fund for the Dee Life project that aims at restoring habitat and removing fish barriers at many locations in the catchment.

Building upon the success of our Event Duration Monitor (EDM) installation programme (2019-2020) we are currently investing £42m across Wales in our Storm Overflow Assessment Framework (SOAF). Over the next 5 years (2020-2025) this programme will use data from the EDM sites to prioritise wastewater assets for investigation, with the aim to reduce both the number and volume of storm water discharges to the environment. This will improve both watercourse amenity value and water quality overall. Using data from the EDM sites a further £15m is being spent around Wales on reducing the number of coastal discharges near to bathing and shellfish waters.

We are currently undertaking 59 investigations into a prioritised list of EDM trigger assets within the North East Wales area.

A £19m investment has been started to install Pass Forward Flow monitoring on over 300 wastewater treatment works to enable us to monitor our compliance against our flow permits and assess whether we’re fully utilising the treatment works full treatment capacity prior to spilling to storm. This investment will take up to 3 years to complete. Pass forward flow is the minimum flow that an asset is required to pass forward before spilling to storm to ensure it remains compliant.

Our 2021 data is below..

Name Duration (Hours & Minutes) Releases Per Annum
Bodelwyddan Rhyl 85 Hours 30 Minutes 17
Rhyl Tynewydd Road 0 Hours 15 Minutes 1
Holywell / Treffynnon Bagillt Boot & Ship 0 Hours 0 Minutes 0
Chester - Parkgate Road 245 Hours 15 Minutes 44
Prestatyn Nant Hall Road (1) 0 Hours 0 Minutes 0
Prestatyn Nant Hall Road (2) 0 Hours 0 Minutes 0
The Willows Buckley 86 Hours 15 Minutes 20
Greenfield Halls Factory 336 Hours 30 Minutes 87
Greenfield - B512/A548 Junction 48 Hours 30 Minutes 27
Flint/Y Fflint The Meadows 0 Hours 0 Minutes 0
Chirk SPS - Settled Storm 0 Hours 0 Minutes 0
Chirk SPS 6 Hours 30 Minutes 15
Jubilee Park Whitchurch 30 Hours 0 Minutes 19
Minafon Wrexham 465 Hours 0 Minutes 37
Queensway Kings Mill Wrexham 32 Hours 15 Minutes 14
Rhyl - Coast Road 40 Hours 45 Minutes 80
Flint/Y Fflint Bardyn 21 Hours 15 Minutes 31
Wrexham - Rivulet Road 0 Hours 0 Minutes 0
Wlyfa Hill Mold 211 Hours 30 Minutes 66
Heswall Gayton Riverbank Road 150 Hours 15 Minutes 25
Taurus Buisness Centre Wrexham 103 Hours 15 Minutes 21
Grosvenor Bridge Chester 6 Hours 45 Minutes 2
Hampden Way Plas Madoc 8 Hours 15 Minutes 3
Factory Rd Deeside 3 Hours 45 Minutes 1
Colliery Rd Rhostyllen 30 Hours 0 Minutes 20
Level Crossing Rossett 91 Hours 15 Minutes 22
Heol Maelor Ruthin 218 Hours 0 Minutes 58
Saltney Bridge Chester 0 Hours 0 Minutes 0
Paddock Row Wrexham 8 Hours 15 Minutes 3
Ruthin Road Gegin 6 Hours 45 Minutes 10
Chapel Lane Llay 45 Hours 30 Minutes 30
Chester - Haslan Crescent 0 Hours 0 Minutes 0
Ffordd Offa Rhoslanerchrugog 32 Hours 0 Minutes 32
Holywell / Treffynnon Bagillt Merllyn Lane 0 Hours 45 Minutes 3
Neston Gladstone Road 23 Hours 15 Minutes 12
Countess Way Chester 28 Hours 30 Minutes 12
Woodland View Cefn Y Bedd 0 Hours 0 Minutes 0
Offa St Chirk 665 Hours 15 Minutes 55
Mercia Drive Mynydd 4 Hours 30 Minutes 5
Old Station Yard Corwen 47 Hours 0 Minutes 4
Church St Wrexham - Hours - Minutes -
Ysceifiog Holywell 0 Hours 30 Minutes 2
Holywell / Treffynnon Greenfield Chester Road 285 Hours 0 Minutes 20
Belgrave Park Chester 0 Hours 0 Minutes 0
Curzon Park North Chester 0 Hours 30 Minutes 1
Grosvenor Rd Chester 85 Hours 15 Minutes 48
Chester - The Dingle 4 Hours 15 Minutes 9
Heswall Wwtw 0 Hours 0 Minutes 0
Wrexham - York Street / Mount Street 0 Hours 0 Minutes 0
Ruthin / Ruthun (1) 195 Hours 15 Minutes 39
Neston Marshlands Road 383 Hours 30 Minutes 69
NESTON 1504 Hours 30 Minutes 125
Holywell / Treffynnon Greenfield 90 Hours 15 Minutes 42
Ty Gwyn Buckley 228 Hours 0 Minutes 58
Talacre Llanasa 657 Hours 15 Minutes 59
Daleside Chester 0 Hours 0 Minutes 0
Heol Berwyn Cefn Mawr 636 Hours 15 Minutes 75
Glan-Y-Don Fford Ddyfrdwy (1) 4 Hours 30 Minutes 15
Church St Llangollen - Hours - Minutes -
Treuddyn 30 Hours 30 Minutes 16
Rhyl Westbourne Grove 0 Hours 0 Minutes 0
Rhyl Clifton Park Road (1) 0 Hours 0 Minutes 0
Northop Mold 1345 Hours 0 Minutes 95
Ffrith Wrexham 33 Hours 0 Minutes 2
Hope Cymau SPS 23 Hours 45 Minutes 15
Llanarmon-Yn-Ial 168 Hours 45 Minutes 70
Llangollen 472 Hours 0 Minutes 46
Five Fords Marchwiel 305 Hours 15 Minutes 31
Llwyn Onn 164 Hours 15 Minutes 73
Leeswood Bethania 12 Hours 45 Minutes 4
Dolywern Llangollen 126 Hours 15 Minutes 46
Llandrillo 14 Hours 30 Minutes 13
Abbey Road Denbigh 2 Hours 15 Minutes 2
Flint Mountain 2096 Hours 0 Minutes 106
Ruthin / Ruthun (2) 1612 Hours 45 Minutes 118
Chester WwTW 563 Hours 30 Minutes 78
Green Lane Corwen 1798 Hours 0 Minutes 116
Saltney - Chester Street 25 Hours 0 Minutes 18
Tilston 139 Hours 30 Minutes 53
Denbigh / Dinbych Eglwyswen 971 Hours 45 Minutes 85
Pentre Halkin 277 Hours 45 Minutes 20
Leeswood Mold 757 Hours 0 Minutes 48
Gas Lane Mold 6 Hours 30 Minutes 13
Mold Argoed 0 Hours 0 Minutes 0
Bridge St Mold 11 Hours 15 Minutes 5
Brun Coch lane Mold 0 Hours 0 Minutes 0
Maes Y Dre Mold 1 Hours 30 Minutes 4
Glan Yr Afon Rd Mold 11 Hours 45 Minutes 24
Bromfield Lane Mold 66 Hours 45 Minutes 46
Gwespyr Argoed Station Rd 10 Hours 45 Minutes 5
Ffynnongroyw West 549 Hours 15 Minutes 30
Talacre Morfa Camp 383 Hours 15 Minutes 27
Prestatyn Dyserth 168 Hours 15 Minutes 56
Dyserth 32 Hours 0 Minutes 8
Chapel lane Chirk 1 Hours 30 Minutes 3
Oakenholt Flint 0 Hours 0 Minutes 0
Llannerch-Y-Mor Greenfield 0 Hours 0 Minutes 0
Bridge Inn Pontblyddyn 18 Hours 0 Minutes 3
Drury lane 109 Hours 15 Minutes 64
Gresford WwTW 0 Hours 0 Minutes 0
Rhyl Marine Lake 226 Hours 15 Minutes 19
Lygan Y Wern Pentre Halkyn 38 Hours 30 Minutes 23
Plas Yn Greem Denbigh 262 Hours 15 Minutes 39
New Broughton Southsea Wrexham 0 Hours 15 Minutes 1
Rhos Pant Penycae Wrexham 652 Hours 30 Minutes 63
Johnstown Ruabon Wrexham 47 Hours 30 Minutes 26
New Hall Road Ruabon 2 Hours 0 Minutes 5
Wood Lane Hawarden 125 Hours 15 Minutes 46
Prestatyn Marine Park 2 Hours 30 Minutes 3
Prestatyn Coronation Gardens 32 Hours 30 Minutes 25
Prestatyn Llanasa Headworks 115 Hours 30 Minutes 36
Northop Rd Flint 928 Hours 30 Minutes 95
Populars Saughall Chester 45 Hours 0 Minutes 21
Bangor on Dee 915 Hours 15 Minutes 103
Holywell / Treffynnon Bagillt East 260 Hours 0 Minutes 31
Holywell / Treffynnon Bagillt West 42 Hours 45 Minutes 31
Ruthin Rd Pwllglas 1032 Hours 0 Minutes 95
Pwllglas Ruthin 1043 Hours 0 Minutes 96
Mostyn No 1 75 Hours 45 Minutes 5
Mostyn No 2 815 Hours 0 Minutes 39
Gwynfryn 1020 Hours 0 Minutes 69
Clawddnewydd WwTW 1936 Hours 15 Minutes 111
Chester - Balderton SPS 38 Hours 45 Minutes 19
Llandyrnog 0 Hours 0 Minutes 0
Padeswood Road 823 Hours 0 Minutes 78
St Martins 35 Hours 45 Minutes 8
Rhuddlan 59 Hours 0 Minutes 27
Malpas 14 Hours 15 Minutes 19
Cestrian St Connahs Quay 7 Hours 15 Minutes 3
Chester Lane Holt 4 Hours 45 Minutes 2
Holt Wrexham 511 Hours 0 Minutes 68
Chester Rd Tattenhall 354 Hours 0 Minutes 83
York Street Wrexham 0 Hours 0 Minutes 0
Wealstone Lane 10 Hours 30 Minutes 19
Rhyddyn Hill Caergwrle 102 Hours 45 Minutes 31
Sarn Lane Hope 9 Hours 0 Minutes 20
Deva Terrace Chester 50 Hours 30 Minutes 50
Dee Lane Chester 307 Hours 15 Minutes 78
The Groves Chester 105 Hours 45 Minutes 40
Mill St Chester 123 Hours 45 Minutes 25
Hydro Dee Bridge 0 Hours 0 Minutes 0
Roe Parc St Asaph 5 Hours 45 Minutes 3
Prestatyn Bastion Gardens 0 Hours 0 Minutes 0
Cynwyd Corwen 230 Hours 30 Minutes 87
Higher Kinnerton 81 Hours 45 Minutes 18
Mills Road Broughton 23 Hours 30 Minutes 2
Chester Rd Broughton 1086 Hours 15 Minutes 83
Southdown Park Buckely 13 Hours 0 Minutes 4
Cross Tree Lane Hawarden 0 Hours 30 Minutes 2
Mancot Lane 115 Hours 30 Minutes 17
Deva Avenue Connahs Quay - Hours - Minutes -
Connahs Quay - Low Level SPS 0 Hours 30 Minutes 2
Docks Road Connahs Quay 9 Hours 45 Minutes 2
Golftyn Connahs Quay 977 Hours 45 Minutes 70
Connahs Quay - Wepre SPS 18 Hours 0 Minutes 22
Ash Grove Shotton 50 Hours 15 Minutes 21
Garden City Queensferry 0 Hours 0 Minutes 0
Phoenix Street Sandycroft 8 Hours 45 Minutes 2
Cefn Y Bedd Gwern Alyn 188 Hours 0 Minutes 42
Penyffordd - West View 0 Hours 0 Minutes 0
Little Roodee Chester 144 Hours 15 Minutes 47
Chester - Sandy Lane 31 Hours 15 Minutes 35
Crane St Chester 0 Hours 15 Minutes 1
Edgars Park Chester 9 Hours 0 Minutes 9
Bryn Awelon Mold 122 Hours 15 Minutes 36
Glan-Y-Don Fford Ddyfrdwy (2) 696 Hours 0 Minutes 40
Mynydd Isa Mold 521 Hours 15 Minutes 93
St Marys Drive Northop Hall 3 Hours 30 Minutes 11
Ffynnongroyw Pen Y Ffordd 30 Hours 45 Minutes 11
Holywell / Treffynnon Bagillt Tyddyn Mesham Lane 0 Hours 15 Minutes 1
Holywell / Treffynnon Bagillt Station Road 36 Hours 30 Minutes 14
Holywell / Treffynnon Bagillt Greenacre Drive 48 Hours 15 Minutes 19
Flint/Y Fflint Flint Maes Gwyn 71 Hours 15 Minutes 48
Holywell / Treffynnon Greenfield B5121/A548 1 Hours 30 Minutes 2
Gwespyr 0 Hours 0 Minutes 0
Holywell - Pen Y Maes Road 164 Hours 45 Minutes 40
Holywell / Treffynnon Strand Walk 0 Hours 0 Minutes 0
Strand Walk 0 Hours 0 Minutes 0
Neston Parkgate Earle Drive 0 Hours 0 Minutes 0
Parkgate The Parade 849 Hours 45 Minutes 81
Neston Parkgate The Parade 6 Hours 15 Minutes 11
Neston Greenfields Drive 9 Hours 45 Minutes 17
Neston Harp Inn 60 Hours 15 Minutes 34
Llangollen - Hand Hotel Gardens 258 Hours 0 Minutes 56
Royal Hotel Llangollen 1 Hours 15 Minutes 3
East St Llangollen 0 Hours 0 Minutes 0
West Street Llangollen 4 Hours 45 Minutes 8
Vistoria Prom Llangollen 0 Hours 0 Minutes 0
Riverside park Llangollen 0 Hours 0 Minutes 0
Abbey Road Llangollen 136 Hours 15 Minutes 35
Park Avenue Llangollen 75 Hours 0 Minutes 9
Tannery Llangollen 45 Hours 15 Minutes 24
Bewyn St Llangollen 16 Hours 15 Minutes 9
Henllan St Denbigh 3 Hours 30 Minutes 1
Panton Hall 41 Hours 45 Minutes 37
Frongoch Court Denbigh 28 Hours 0 Minutes 6
Denbigh - Dalar Wen 58 Hours 45 Minutes 52
London Road Corwen 55 Hours 15 Minutes 23
New Road Wrexham 15 Hours 45 Minutes 10
Dolywern Chirk 16 Hours 45 Minutes 12
Y Gammer Glynceiriog 15 Hours 0 Minutes 27
Rhyl Clifton Park Road (2) 0 Hours 0 Minutes 0
Prestatyn Meliden Road 13 Hours 0 Minutes 13
Fford Penrhwylfa Prestatyn 378 Hours 15 Minutes 52
Rhuddlan Ffordd Aber 0 Hours 45 Minutes 3
Heswall Seabank Rd 608 Hours 15 Minutes 136
Park Avenue Wrexham 2 Hours 30 Minutes 3
Cefn Monsanto Abernant 58 Hours 30 Minutes 30
Fishponds Gresford 1 Hours 15 Minutes 2
Talwrn Rd No2 Coedpoeth 101 Hours 0 Minutes 32
Newbridge 15 Hours 0 Minutes 7
Ffordd Llanerch Penycae 234 Hours 0 Minutes 71
Bryn Y Brain Rhos 11 Hours 15 Minutes 10
Aberderfyn Rhosllanerchrugog - Hours - Minutes -
Pen Y Cae 208 Hours 15 Minutes 32
Pontyrason Penycae 0 Hours 30 Minutes 1
Rollers Arms Southsea 530 Hours 15 Minutes 83
Pandy 15 Hours 0 Minutes 11
Lavister 1589 Hours 15 Minutes 138
Penley Hospital Chrik 42 Hours 15 Minutes 21
Saighton - Hours - Minutes -
Old Trooper Chester 397 Hours 15 Minutes 53
Church Lane Aldford 779 Hours 45 Minutes 92
Chester - Marlston-Cum-Lache 51 Hours 15 Minutes 12
Huntington - Rake & Pickle 12 Hours 30 Minutes 2
Eccleston Chester 50 Hours 45 Minutes 8
Plough Lane East Christleton 16 Hours 15 Minutes 4
Christleton - Whitchurch Road SPS 48 Hours 30 Minutes 24
Greenbank Eaton Handbridge 0 Hours 0 Minutes 0
Dendigh - Ruthin Road Roundabout 85 Hours 45 Minutes 43
Bradley Wrexham 217 Hours 45 Minutes 59
Eyton 2 Hours 0 Minutes 2
Caer Estyn Powys 1 Hours 0 Minutes 4
Overton On Dee 136 Hours 45 Minutes 80
Tattenhall - Millbrook Park 16 Hours 15 Minutes 2
Ruabon 235 Hours 15 Minutes 50
Brymbo 121 Hours 0 Minutes 27
Heol Penyfelin Nant 260 Hours 45 Minutes 44
Cefn SPS 324 Hours 0 Minutes 67
Parkgate Court Chester 36 Hours 45 Minutes 5
Malpas - Sunnyside 248 Hours 15 Minutes 25
Coast Rd Tanlanbach 290 Hours 45 Minutes 19
Station Rd Talacre Holywell - Hours - Minutes -
Pontblyddyn 23 Hours 30 Minutes 2
Pont Y Bodkin 44 Hours 15 Minutes 10
Lower Pontybodkin 18 Hours 15 Minutes 17
Clawdd Poncen Corwen 51 Hours 0 Minutes 6
Pentre Llanrhaeadr 6 Hours 45 Minutes 2
Llanferres 231 Hours 15 Minutes 21
Prestatyn Bodnant 0 Hours 0 Minutes 0
Prestatyn Dyserth Bay 7 Hours 15 Minutes 1
Prestatyn The Mall 0 Hours 30 Minutes 1
Prestatyn Purbeck 6 Hours 0 Minutes 2
Heswall Cottage Lane 2 Hours 0 Minutes 1
Heswall Gayton Cedarway 0 Hours 0 Minutes 0
Holt - Green Street 161 Hours 30 Minutes 97
Acton Wrexham 0 Hours 0 Minutes 0
Maesgwyn Rd 175 Hours 30 Minutes 19
Flint/Y Fflint Flint Dee Cottages 36 Hours 30 Minutes 9
Glan-Y-Don Mostyn Marsh Farm 667 Hours 0 Minutes 72
Northop Hall 38 Hours 45 Minutes 20
Liverpool Rd Buckley 136 Hours 30 Minutes 45
Heswall Gayton Parkway 6 Hours 45 Minutes 4
Gresford Boreen Camp Singrett Hill Llay 168 Hours 45 Minutes 72
Llannerch-Y-Mor Mostyn 132 Hours 30 Minutes 32
Mercia Drive Mold 216 Hours 15 Minutes 77
Lodge Chester Rd Wrexham 116 Hours 45 Minutes 42
Bersham Colliery Rhostyllen 100 Hours 45 Minutes 45
Holly Grange Weston Rhyn - Hours - Minutes -
Trefnant Nant Y Patrick 10 Hours 45 Minutes 7
Trefnant Village 7 Hours 15 Minutes 6
Park Avenue Whitchurch 58 Hours 45 Minutes 75
Waterside Close Whitchurch 21 Hours 45 Minutes 28
Gwyddelwern SPS 0 Hours 0 Minutes 0
Chirk Bank 258 Hours 45 Minutes 29
Oswestry - St Martins SPS 33 Hours 30 Minutes 6
Dobshill 0 Hours 0 Minutes 0
Bagillt - Manor Drive 0 Hours 30 Minutes 2
Hope WwTW Inlet 96 Hours 0 Minutes 6
Malpas - Well Street 0 Hours 0 Minutes 0
Wrexham - Talwrn Road 73 Hours 15 Minutes 26
Rhuddlan 23 Hours 30 Minutes 3
Chester - Seahill Road 23 Hours 15 Minutes 9
Llanasa Glanyrafon 22 Hours 0 Minutes 14
The Boat House The Groves Chester 0 Hours 30 Minutes 2
Sealand Road Chester 93 Hours 0 Minutes 42
Gamekeeper car park St Asaph 0 Hours 15 Minutes 1
Pen Y Ffordd 105 Hours 45 Minutes 29
Holywell / Treffynnon Greenfield Terminal 310 Hours 30 Minutes 94
Upton heath Rd 14 Hours 15 Minutes 2
Holywell / Treffynnon Pen Y Maes 452 Hours 0 Minutes 60
Henllan 144 Hours 0 Minutes 81
Flint - Castle No1 0 Hours 0 Minutes 0
Rhydymwyn WwTW 11 Hours 45 Minutes 1
Llandegla SPS 23 Hours 0 Minutes 5
Kimnel Bay WwTW 574 Hours 15 Minutes 56
Saltney - Sandy Lane 399 Hours 30 Minutes 66
Overton WwTW 110 Hours 30 Minutes 22
Mold WwTW 1183 Hours 45 Minutes 118
Whitchurch Rising Sun WwTW 804 Hours 15 Minutes 101
Neston - Church Lane 88 Hours 15 Minutes 41
Queensferry WwTW Settled Storm 141 Hours 15 Minutes 35
Brynford - Crooked Horn 41 Hours 0 Minutes 26
Caergwrle - Derby Road - Hours - Minutes -
Cefn Y Bedd SPS 0 Hours 45 Minutes 3
Mynydd Isa - Dyke Avenue 149 Hours 45 Minutes 34
Nannerch SPS 6 Hours 0 Minutes 4
Willaston - Mill Lane 0 Hours 0 Minutes 0
Llanfair Dyffryn Clwyd WwTW 347 Hours 45 Minutes 67
Connahs Quay - Dee Road 0 Hours 0 Minutes 0
Mold - Bro Alun 69 Hours 15 Minutes 44
Rhosllanerchrugog - Afon Eitha 1 Hours 15 Minutes 1
Trefnant WwTW 761 Hours 15 Minutes 116
Lavister WwTW 2121 Hours 0 Minutes 127
Glyn Ceiriog WwTW 488 Hours 45 Minutes 86
Connahs Quay WwTW 0 Hours 0 Minutes 0
Saltney - Mount Pleasant 94 Hours 15 Minutes 74
Wrexham - Higher Berse Road 258 Hours 45 Minutes 91
Chester - Cheyney Road 4 Hours 15 Minutes 8
Heswall - Park West 8 Hours 0 Minutes 11
Connahs Quay - Richmond Road 0 Hours 0 Minutes 0
Kinmel Bay - Foryd Road 0 Hours 15 Minutes 1
Park Avenue Wrexham 0 Hours 0 Minutes 0
Saltney - Mount Pleasant 94 Hours 15 Minutes 74