North West Wales


Stretching from Llandudno across to the Llŷn Peninsula and down towards Towyn and covering the Snowdonia National Park, our North West Wales catchment is home to beautiful coastlines and spectacular scenery and we serve around 340,000 customers.

Example of investment in area:

  • We are in the process of designing a solution for Bala WwTW to improve it’s capacity to treat more flow and store more storm water prior to any storm discharge, the scheme will also improve the quality of its discharge to prevent deterioration to the watercourse of the River. This £4.5m investment is due to be completed by the end of March 2025.
  • Between 2020 and 2025 we will be spending £3.1m in the North West on connecting properties to the wastewater network, known as First Time Sewerage Schemes, which help reduce pollutions and improve the environment.
  • £4.2m is being invested to reduce releases discharges from our large pumping station in Llandudno Junction which in turn will improve the coastal water quality.
  • We will be investing £11.8m in investigating and improving our asset performance around the shellfish waters in the North West, leading to an improvements in water quality in the Menai Strait.

We also plan to undertake a water quality modelling programme on the Meir, Gwyrfai and Eden SAC rivers. These rivers are meeting the phosphorus standards to meet good conservation status but we want to understand how we can contribute to maintaining this status now and in the future.

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.

We are currently undertaking 91 investigations into a prioritised list of EDM trigger assets within the North West 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
Llanystumdwy WwTW 0 Hours 15 Minutes 1
Bryncir Garndolbenmaen 384 Hours 30 Minutes 92
Tyn Y Groes WwTW 58 Hours 15 Minutes 19
Llangaffo WwTW 480 Hours 0 Minutes 138
Abergynolwn Tywyn 177 Hours 15 Minutes 40
Eg;wusbach 1751 Hours 0 Minutes 85
Mynytho WwTW 1341 Hours 15 Minutes 127
Bontdolgadfan PS 800 Hours 15 Minutes 48
Betws Yn Rhos Abergele 2520 Hours 0 Minutes 140
Llyn Golf Penrhos 60 Hours 45 Minutes 15
Dyffryn Ardudwy 782 Hours 45 Minutes 60
Porthmadog (1) 4 Hours 45 Minutes 4
Porthmadog Lombard Street/Bank 6 Hours 30 Minutes 19
Porthmadog Main 438 Hours 45 Minutes 104
Porthmadog Tremadog Iscraig 6 Hours 30 Minutes 10
Llandegfan 1312 Hours 15 Minutes 90
Llanfechell 1025 Hours 45 Minutes 78
Gwalchmai Holyhead 9 Hours 30 Minutes 16
Llanffestiniog Works 1 2590 Hours 0 Minutes 307
Llanffestiniog Works 2 1081 Hours 45 Minutes 116
Llanrwst Conwy 887 Hours 45 Minutes 85
Talsarnau 269 Hours 15 Minutes 63
Llanberis - Dol Elidir 86 Hours 30 Minutes 36
Llanrug WwTW 1631 Hours 45 Minutes 120
Pont Rhythallt 1333 Hours 45 Minutes 132
Tai Craig Don Y Don 154 Hours 15 Minutes 21
Rhos Cottages Capel Curig 3519 Hours 45 Minutes 191
Pontllyfni 731 Hours 15 Minutes 52
Tal Y Bont Dolgarrog Talybont 1250 Hours 45 Minutes 86
Dolgarreg Tan Y Ffordd Dolgarrog 99 Hours 45 Minutes 37
Carmel Dorlan Goch Goresion 629 Hours 30 Minutes 114
Llwyn Gwalch Caernarfon 172 Hours 30 Minutes 26
Glanrafon Wen Rhosgadfan 188 Hours 0 Minutes 71
Heulfryn Caernarfon 314 Hours 15 Minutes 71
Hen Gastell Caernarfon 481 Hours 15 Minutes 83
Dinas Llanwnda 274 Hours 15 Minutes 102
Bontnewydd Caernarfon 704 Hours 0 Minutes 111
Bontnewydd No 10 Caernarfon 118 Hours 0 Minutes 58
Llanfairfechan No 1 147 Hours 15 Minutes 43
Llangefni WwTW 40 Hours 30 Minutes 46
Llanfaglan 582 Hours 0 Minutes 63
Caernarfon Caernafon 30 Hours 45 Minutes 42
Caernarfon 306 Hours 0 Minutes 85
Caernarfon Bank Quay 0 Hours 0 Minutes 0
Caernarfon Mill Lane 254 Hours 15 Minutes 93
Llanfair Pwllgwyngyll Llanfair Pg 698 Hours 45 Minutes 111
Llanfair Pwllgwyngyll Llanfair Pg No 2 0 Hours 0 Minutes 0
Llansadwrn SPS 0 Hours 0 Minutes 0
A493 Dollgellau 18 Hours 45 Minutes 4
Llanelltyd SPS 10 Hours 0 Minutes 8
Penmaenpool Dollgellau 701 Hours 30 Minutes 107
Llanelltyd 1741 Hours 0 Minutes 100
Glandwyryd Blaenau Ffestiniog 2805 Hours 0 Minutes 166
Glandwr Terrace Blaenau Ffestiniog 581 Hours 30 Minutes 98
Halfway Bridge Tregarth 2750 Hours 0 Minutes 140
Fron Ogwen 1856 Hours 15 Minutes 110
Trefriw 1322 Hours 0 Minutes 94
Brookdale Trefriw Llanrwst 14 Hours 30 Minutes 4
Bethel 3415 Hours 30 Minutes 185
Bethel Ysgoldy 0 Hours 15 Minutes 1
Bethel Tregof 60 Hours 45 Minutes 19
Rhiwlas Wwtw 463 Hours 0 Minutes 114
Bron Aber Works 339 Hours 15 Minutes 35
Commins Coch SPS 2790 Hours 15 Minutes 132
Llanllyfni WwTW 2521 Hours 15 Minutes 195
Glan Aber Llanllyfni Caernarfon 299 Hours 45 Minutes 121
Penygroes Caernarfon 166 Hours 15 Minutes 67
Talysarn Gas Works 0 Hours 0 Minutes 0
Talysarn Bridge 437 Hours 45 Minutes 81
Nantlle No 5- 539 Hours 15 Minutes 77
Llanberis 1135 Hours 45 Minutes 132
Staylittle Lane Dolgellau 372 Hours 45 Minutes 64
Llangoed Pont Y Brenin 64 Hours 45 Minutes 12
Llangoed Lleiniog 278 Hours 0 Minutes 50
Marian Mawr 187 Hours 45 Minutes 45
Conwy Gyffin St Agnes 3 Hours 15 Minutes 7
Morfa Bach Conwy 0 Hours 0 Minutes 0
Betws y Coed Golf Club 1264 Hours 15 Minutes 92
Waterloo Hotel Betws Y Coed 209 Hours 30 Minutes 30
Dwygyfylchi Headworks 15 Hours 15 Minutes 6
Tywyn Llandudno Junction 0 Hours 15 Minutes 1
Fairbourne Friogg 67 Hours 15 Minutes 5
Fairbourne Bryncoch 117 Hours 15 Minutes 10
Llanfachreth Dolgellau 48 Hours 15 Minutes 14
Arthog Mawddach Crescent 59 Hours 15 Minutes 6
Abergwyngregyn 943 Hours 0 Minutes 48
Tyn Coed House Gaerwen 116 Hours 15 Minutes 11
Llanbrynmair WwTW 5413 Hours 0 Minutes 276
Maes y Berth Llanerchymedd 0 Hours 0 Minutes 0
Llan Penmachno WwTW 1074 Hours 0 Minutes 82
Malltraeth (1) 79 Hours 30 Minutes 27
Tywyn Deganwy Rd 5 Hours 30 Minutes 10
Barmouth / Abermaw 25 Hours 45 Minutes 16
Barmouth / Abermaw Last Inn 24 Hours 45 Minutes 15
Ty'n Coed Waunfawr 1459 Hours 30 Minutes 102
Penisarwaun WwTW 827 Hours 45 Minutes 126
Pen Yr Olchfa Deiniolen 1 Hours 45 Minutes 1
Clwt Y Bont Caernarfon 820 Hours 45 Minutes 130
Llansanffraid Glan Conwy Llanrwst Road 0 Hours 15 Minutes 1
Colwyn Bay Llanddulas Abergele Road 0 Hours 15 Minutes 1
Llanbedrog - Lon Nant-Iago 645 Hours 30 Minutes 37
Nefyn Fire Station 1381 Hours 0 Minutes 148
Bontddu 1503 Hours 45 Minutes 123
Colwyn Bay Marine Road 0 Hours 0 Minutes 0
Colwyn - Beach Rd 60 Hours 45 Minutes 25
Turkey Shore 223 Hours 30 Minutes 48
Caernarfon Angelesey Crudes 0 Hours 0 Minutes 0
Waterside Holyhead 9 Hours 30 Minutes 35
Morawelon 365 Hours 30 Minutes 38
Llansanffraid Glan Conwy 811 Hours 0 Minutes 50
Colwyn Bay Llanddulas Sea 188 Hours 30 Minutes 104
Penrhyn Bay 237 Hours 45 Minutes 34
Conwy Morfa Drive 92 Hours 15 Minutes 54
Gogarth Llandudno West 186 Hours 30 Minutes 64
Llaneilian - Llaneilian Amlwch 285 Hours 45 Minutes 28
Rhosneigr - Lon Traeth Llydan 159 Hours 30 Minutes 22
Pwllheli Gimblet Rock 0 Hours 0 Minutes 0
Porth Y Felin Holyhead 783 Hours 30 Minutes 56
Quay St Amlwch 103 Hours 45 Minutes 20
Bull Bay SPS 513 Hours 30 Minutes 72
Beaumaris West End 73 Hours 15 Minutes 24
Llandegfan Rhianfa 87 Hours 30 Minutes 23
Llandegfan Glyn Garth 85 Hours 45 Minutes 17
Four Mile Bridge Holyhead 901 Hours 45 Minutes 60
Valley - Gorad Road 91 Hours 45 Minutes 30
Cemaes Bay 637 Hours 15 Minutes 42
Caernarfon Waterloo Port 0 Hours 15 Minutes 1
Valley - Newlands Park 0 Hours 0 Minutes 0
Holyhead - Penrhos Beach 0 Hours 15 Minutes 1
Holyhead - Coastgaurd 195 Hours 0 Minutes 69
Malltraeth (2) - Hours - Minutes -
Penmon Llangoed Cynlais 9 Hours 15 Minutes 5
Penrhyn Bay Penrhyn Hill - Hours - Minutes -
Penmaenmawr Promenade 34 Hours 30 Minutes 18
Maentwrog - Bull Street - Hours - Minutes -
Porthmadog Amanda Terrace 0 Hours 0 Minutes 0
Porthmadog Borth-Y-Gest 59 Hours 15 Minutes 26
Porthmadog Britannia Place 49 Hours 15 Minutes 7
Aberdaron 152 Hours 0 Minutes 30
Abersoch Harbour 0 Hours 0 Minutes 0
Pwllheli Cardiff Road 303 Hours 15 Minutes 46
Pwllheli Bridge Garage 0 Hours 0 Minutes 0
Pwllheli Glan-Y-Don 13 Hours 45 Minutes 5
Pwllheli Morfa Garreg 0 Hours 0 Minutes 0
Llandudno - Dale Road 892 Hours 0 Minutes 204
Arthog Wesleyan Terrace 58 Hours 45 Minutes 4
Arthog St Mary's Terrace 89 Hours 15 Minutes 27
Penrhyn Bay Llandudno Road (1) 72 Hours 15 Minutes 50
Llanfairfechan Park Crescent 65 Hours 0 Minutes 24
Conwy Mill Hill 3 Hours 15 Minutes 7
Mill Rd Betws-Y-Coed 1421 Hours 45 Minutes 79
Pentre Ddu Betws Y Coed 141 Hours 0 Minutes 29
Cwm Penmachno 2766 Hours 15 Minutes 140
Caernarfon Min-Y-Nant 11 Hours 45 Minutes 19
Caernarfon Margret Street 83 Hours 45 Minutes 82
Caernarfon Crossville 102 Hours 30 Minutes 60
Caernarfon Seiont Bridge 157 Hours 15 Minutes 18
Caernarfon Balaclava Road 0 Hours 0 Minutes 0
Bethesda - Rock Terrace 548 Hours 45 Minutes 64
Colwyn Bay Queens Road 118 Hours 0 Minutes 32
Pentrefoelas Cel Conwy 13 Hours 45 Minutes 5
Minffordd Street Corris Machynlleth 70 Hours 0 Minutes 11
Llangefni - Rear of Burgess 36 Hours 15 Minutes 23
Gaerwen Station Llandaniel 724 Hours 15 Minutes 62
Hermon Boddorgan 590 Hours 45 Minutes 52
Trearddur Holyhead Bay (1) 298 Hours 30 Minutes 62
Gorsllwyd Rhosbyl 1710 Hours 45 Minutes 140
Plas Y Ffrwd 113 Hours 45 Minutes 29
Nantlle SPS 1318 Hours 0 Minutes 96
Fairbourne Glasfryn Terrace 63 Hours 0 Minutes 4
Arthog Castell 86 Hours 15 Minutes 9
Arthog Terrace 239 Hours 15 Minutes 27
Llangernyw SPS 98 Hours 45 Minutes 11
Gwalchmai Isaf SPS 51 Hours 15 Minutes 10
Scotland Terrace Lllangefni 193 Hours 15 Minutes 61
Dwyran Hen Felin Wen 1 Hours 45 Minutes 5
Dwyran Rhydwyn 59 Hours 0 Minutes 24
Abergynolwyn 20 Hours 45 Minutes 4
Gors Rd, Towyn 0 Hours 0 Minutes 0
Malltraeth (3) - Hours - Minutes -
Llanrhos Llandudno Hill View 6 Hours 15 Minutes 5
Llanfairfechan Hospital 0 Hours 0 Minutes 0
Muriau Rd Betws Y Coed 30 Hours 0 Minutes 27
Tywyn Deganwy Beach 4 Hours 0 Minutes 6
Penrhyn Bay Glanwydden 723 Hours 45 Minutes 42
Brynrefail Caernarfon 437 Hours 0 Minutes 63
Glasinfryn SPS 639 Hours 0 Minutes 78
Tan Y Fael Estate Abergele 3 Hours 15 Minutes 10
Blaenau Ffestiniog - Llwyn-Y-Gell Road 4 Hours 15 Minutes 17
Blaenau Ffestiniog - Pencefn Road 1039 Hours 15 Minutes 123
Wynnes Arms Blaenau Ffestiniog 681 Hours 45 Minutes 110
Fairbourne 98 Hours 0 Minutes 17
Aberangell No.1 - Hours - Minutes -
Pentraeth Tan Y Graig 0 Hours 0 Minutes 0
Cefn-Bach Llanddaniel Pont Y Grug 263 Hours 15 Minutes 42
Llanddona Gorsllwyd 837 Hours 30 Minutes 106
Llansadwrn 7 Hours 45 Minutes 3
Bodedern Angelsey 0 Hours 0 Minutes 0
Penseri Llanfaelog 350 Hours 30 Minutes 39
Trearddur Bay Haul Y Mor 0 Hours 0 Minutes 0
Llangefni - Industrial Estate Road 115 Hours 0 Minutes 14
Llangefni - Rhostrehwfa SPS 46 Hours 30 Minutes 13
Talwrn Road No.1 Talwrn 53 Hours 30 Minutes 17
Newborough / Niwbwrch 0 Hours 0 Minutes 0
Tan Y Ffordd Dolgarreg 338 Hours 45 Minutes 58
Tywyn Llandudno Junction Marl Drive 66 Hours 45 Minutes 9
Ynys Mon Offices Llangefni 60 Hours 45 Minutes 42
Llanfaes Friars Bay 0 Hours 0 Minutes 0
Llandegai Tal-Y-Bont 4 Hours 15 Minutes 11
Clynnog Fawr 256 Hours 0 Minutes 53
Penrhyn Bay Llandudno Road (2) 9 Hours 15 Minutes 3
Conwy Quay 12 Hours 30 Minutes 10
Kinmel Bay / Bae Cinmel Llysfaen Avenue 0 Hours 0 Minutes 0
Blaenau Ffestiniog - Cwm Bowydd 904 Hours 45 Minutes 114
Pentraeth 1473 Hours 30 Minutes 129
The Square Blaenau Ffestiniog 0 Hours 0 Minutes 0
Dwyran Newborough 111 Hours 15 Minutes 34
Bontnewydd CSO 97 Hours 30 Minutes 16
Bodffordd Lllangefni 241 Hours 0 Minutes 52
Brynsiencyn 1441 Hours 0 Minutes 99
Brynsiencyn Main (1) 164 Hours 15 Minutes 16
Brynsiencyn Main (2) 161 Hours 45 Minutes 17
Criccieth / Cricieth East (1) - Hours - Minutes -
Criccieth / Cricieth East (2) 183 Hours 0 Minutes 18
Criccieth / Cricieth West (1) 167 Hours 30 Minutes 28
Criccieth / Cricieth West (2) 405 Hours 45 Minutes 43
Criccieth / Cricieth Hen Felin Newydd 9 Hours 0 Minutes 6
Tan Lon Lodge Criccieth 1969 Hours 30 Minutes 126
Benllech Old Tidal (1) 0 Hours 0 Minutes 0
Llanfaes Beaumaris 676 Hours 15 Minutes 76
Llanfaes 4 Hours 15 Minutes 3
Beaumaris Green (1) 0 Hours 0 Minutes 0
Beaumaris Green (2) 93 Hours 0 Minutes 31
Benllech Old Tidal (2) 0 Hours 0 Minutes 0
Y Felinheli Harbour 0 Hours 0 Minutes 0
Y Felinheli Main 288 Hours 0 Minutes 26
Y Felinheli Marina 0 Hours 0 Minutes 0
Aberdovey / Aberdyfi 369 Hours 30 Minutes 35
Tywyn Morfa 252 Hours 30 Minutes 46
Gwyllt Tywyn 1817 Hours 30 Minutes 103
Bangor Beach Road Short Sea 35 Hours 15 Minutes 17
Bangor Beach Road 250 Hours 45 Minutes 64
Market Street Llanberis 1 Hours 0 Minutes 3
Bangor Gorad Road (1) 0 Hours 0 Minutes 0
Bangor Gorad Road (2) 122 Hours 45 Minutes 71
Bangor Meirion Road 2 Hours 45 Minutes 4
Llanberis 94 Hours 30 Minutes 34
Ffordd Berthddu Llanrwst 1 Hours 15 Minutes 2
Colwyn Bay Llanddulas Mill Street 0 Hours 45 Minutes 2
Afon Glaslyn Beddgelert Caernarfon 852 Hours 15 Minutes 78
Trefor CSO 12 Hours 0 Minutes 11
Harlech Main (1) 398 Hours 15 Minutes 65
Harlech Ffordd Penllach 16 Hours 15 Minutes 5
Llanuwchllyn Bala 326 Hours 30 Minutes 46
Maes Gwyndy Trawsfynydd 182 Hours 45 Minutes 68
Bron Gwyndy Trawsfynydd 19 Hours 0 Minutes 18
Prysor Garage 1 Hours 15 Minutes 5
Porthmadog Chapel Street - Hours - Minutes -
Porthmadog Bakers Lane 0 Hours 0 Minutes 0
High St Penrhydeudraeth 980 Hours 15 Minutes 115
Trefriw - Coed Gwydyr 189 Hours 30 Minutes 55
Llannor WwTW 1216 Hours 0 Minutes 119
Menai Bridge / Porthaethwy Menai Llyn-Y-Felin (1) 0 Hours 0 Minutes 0
Menai Bridge / Porthaethwy Menai Llyn-Y-Felin (2) 0 Hours 0 Minutes 0
Menai Bridge / Porthaethwy Menai Ville (1) 1065 Hours 30 Minutes 96
Menai Bridge / Porthaethwy Menai Ville (2) 1065 Hours 30 Minutes 96
Menai Bridge / Porthaethwy Porthwen (1) 7 Hours 15 Minutes 15
Menai Bridge / Porthaethwy Porthwen (2) 7 Hours 15 Minutes 15
Menai Bridge / Porthaethwy Suspension Bridge (1) 1365 Hours 30 Minutes 108
Menai Bridge / Porthaethwy Suspension Bridge (2) 1365 Hours 30 Minutes 108
Llandegfan Menai 2114 Hours 0 Minutes 115
Pentrefelin WwTW 924 Hours 45 Minutes 116
Glan Rhos Army CentreAmlwch 162 Hours 45 Minutes 29
Bangor Glantraeth Estate 0 Hours 0 Minutes 0
Llanfair Pwllgwyngyll Treborth 823 Hours 15 Minutes 69
Bangor Treborth 33 Hours 30 Minutes 14
Colwyn Bay Rhos-On-Sea Church Road 1063 Hours 30 Minutes 87
Bethel Tan Y Buarth 61 Hours 0 Minutes 24
Tywyn Woodlands 1 Hours 0 Minutes 2
Colwyn Bay Old Colwyn Llanelian Road 0 Hours 0 Minutes 0
Gellilydan WwTW 959 Hours 45 Minutes 101
Porthmadog (2) 10 Hours 15 Minutes 12
Porthmadog (3) 83 Hours 15 Minutes 37
Tywyn Ganol (1) 0 Hours 30 Minutes 2
Tywyn Ganol (2) 3037 Hours 30 Minutes 364
Tywyn Ganol (3) 0 Hours 30 Minutes 2
Tywyn Llandudno Junction Glan-Y-Mor Road 10 Hours 30 Minutes 10
Tywyn Llandudno Junction Conwy Road 547 Hours 30 Minutes 53
Tywyn 63 Hours 15 Minutes 51
Tywyn Deganwy Station (1) 261 Hours 30 Minutes 143
Benllech Works 480 Hours 45 Minutes 70
Rhosneigr 749 Hours 0 Minutes 39
Dwygyfylchi Penmaenmawr (1) 2574 Hours 0 Minutes 175
Dwygyfylchi Penmaenmawr (2) 34 Hours 15 Minutes 23
Dolwyddelan Conwy 2898 Hours 15 Minutes 166
St Gwyddelans Dolwyddelan 190 Hours 30 Minutes 38
Aberffraw (1) 0 Hours 30 Minutes 2
Aberffraw (2) 2104 Hours 30 Minutes 103
Beddgelert Caernarfon 2870 Hours 45 Minutes 174
Llanrwst Conwy 416 Hours 0 Minutes 91
Penmaenmawr 14 Hours 30 Minutes 14
Fairbourne (New) 1665 Hours 45 Minutes 89
Llanystumdwy WwTW SPS 0 Hours 0 Minutes 0
Caernarfon 404 Hours 0 Minutes 34
Bangor Coleg Normal 25 Hours 45 Minutes 6
Malltraeth (4) 2 Hours 30 Minutes 4
Groesffordd Edern 173 Hours 0 Minutes 27
Morfa Nefyn New (1) 2454 Hours 15 Minutes 160
Morfa Nefyn New (2) 235 Hours 0 Minutes 71
Nefyn 9 Hours 15 Minutes 14
Morfa Nefyn New (3) 48 Hours 15 Minutes 25
Towyn Kerfoot 24 Hours 15 Minutes 4
Towyn Sandbank Road 21 Hours 30 Minutes 4
Railway Station Betws Y Coed 1543 Hours 0 Minutes 94
Bala WwTW 1116 Hours 30 Minutes 117
Derlwyn Maentwrog 833 Hours 15 Minutes 81
Llanbedr 1810 Hours 45 Minutes 156
Llandanwg Station 647 Hours 0 Minutes 46
Harlech Main (2) 558 Hours 30 Minutes 77
Abererch 3429 Hours 15 Minutes 182
Barmouth / Abermaw Outfall 498 Hours 0 Minutes 179
Blaenau Ffestiniog WwTW 24 Hours 15 Minutes 23
Trearddur Holyhead Bay (2) 290 Hours 45 Minutes 37
Valley Storm Holyhead 1 860 Hours 15 Minutes 71
Valley Storm Holyhead 2 343 Hours 30 Minutes 50
Afonwen ` 181 Hours 30 Minutes 22
Bangor Rd Bethesda 1306 Hours 30 Minutes 130
Cerrigydrudion 443 Hours 45 Minutes 85
Trefor 1 Caernarfon 85 Hours 45 Minutes 29
Trefor WwTW 1609 Hours 15 Minutes 144
Nebo Road Llanrwst 11 Hours 0 Minutes 33
Dolgellau - Marian Mawr 167 Hours 0 Minutes 23
Morfa Bychan (1) 0 Hours 45 Minutes 1
Morfa Bychan (2) 231 Hours 30 Minutes 64
Pwllheli Y Maes 0 Hours 0 Minutes 0
Betws Yn Rhos WwTW 1676 Hours 30 Minutes 135
Llwyngwril 399 Hours 45 Minutes 40
Llanfair Talhaiarn 860 Hours 15 Minutes 74
Towyn Road Abergele 641 Hours 15 Minutes 111
Kinmel Bay / Bae Cinmel Golden Sands 158 Hours 30 Minutes 37
Llansannan Ddol Llansannan 0 Hours 45 Minutes 1
Efailnewydd WwTW 1546 Hours 30 Minutes 189
Abergele - Berthglyd 17 Hours 0 Minutes 15
Garndolbenmaen WwTW 1058 Hours 30 Minutes 100
Rowen WwTW 624 Hours 30 Minutes 125
Aberdaron WwTW 221 Hours 45 Minutes 24
Chwilog WwTW 814 Hours 30 Minutes 90
Llithfaen WwTW 3318 Hours 45 Minutes 155
Old Colwyn - Beach Road 15 Hours 15 Minutes 44
Llandanwg SPS 4 Hours 45 Minutes 1
Porthmadog - Borth-Y-Gest 71 Hours 0 Minutes 75
Old Colwyn - Llawr Pentre 3 Hours 45 Minutes 10
Llanbedr CSO 0 Hours 0 Minutes 0
Caernarfon - Peblig Industrial Estate 129 Hours 0 Minutes 28
Penrhyn Bay - Penrhyn Isaf 200 Hours 0 Minutes 91
Harlech - Rum Hole 0 Hours 15 Minutes 1
Maes Bleddyn Rachub Lanllechid 431 Hours 30 Minutes 68
Moelfre 113 Hours 15 Minutes 20
Craig Y Don Amlwch 409 Hours 45 Minutes 55
Holyhead - B4545 Four Mile Bridge 7 Hours 30 Minutes 2
Trawsfynydd WwTW 757 Hours 0 Minutes 95
Y Ffor WwTW 3536 Hours 45 Minutes 279
Dolgellau WwTW 3653 Hours 30 Minutes 247
Lower Corris WwTW 1219 Hours 15 Minutes 89
Machynlleth WwTW 1 0 Hours 15 Minutes 1
Machynlleth WwTW 2 12 Hours 30 Minutes 2
Penrhyndeudraeth WwTW 574 Hours 30 Minutes 69
Bodedern (Anglesey) WwTW 14 Hours 45 Minutes 5
Holyhead - Hibernia Row 3 Hours 0 Minutes 1
Llanfair PG SPS - Star 237 Hours 45 Minutes 41
Conwy Harbour - Lower Gate Street - Hours - Minutes -
Blaenau Ffestiniog - Slaughterhouse 0 Hours 0 Minutes 0
Bodffordd - Maes Yr Orsedd 0 Hours 0 Minutes 0
Trearddur bay - Isallt Bach 16 Hours 0 Minutes 14
Pontllyfni - Tai Lleuar 0 Hours 0 Minutes 0
Llanuwchllyn WwTW 3359 Hours 15 Minutes 282
Llangybi WwTW 4613 Hours 30 Minutes 244
Llanllyfni - Pont Rectory Lane 8 Hours 45 Minutes 21
Betws Y Coed - Pentre Felin 0 Hours 0 Minutes 0
Holyhead - Ty Mawr 0 Hours 0 Minutes 0
Caernarfon - Crown Street 0 Hours 0 Minutes 0
Bryngwran WwTW 3582 Hours 15 Minutes 226
Llangernyw WwTW 1449 Hours 15 Minutes 122
Llangaffo SPS 0 Hours 15 Minutes 1